2021 TESLA MODEL 3 Forward Collision Avoidance Problems

Central computer (motherboard), cameras (front/rear/side), autopilot/auto steer system. Error code: APS_w132. Description of Problem: On or around [XXX], Tesla pushed a mandatory over-the-air software update to my vehicle. Immediately after, multiple safety-critical systems failed: all cameras (including backup) became intermittent or non-functional, auto steer/autopilot stopped working, and the car emitted constant distracting beeping alerts due to a critical motherboard failure. This made driving hazardous—impaired visibility for parking/reversing, loss of collision avoidance features, and constant audio distractions that could lead to accidents. I had to drive in this unsafe condition for weeks while waiting for service. Tesla attempted a remote fix but it failed. I scheduled service on November 19 for December 3 (19-day delay). Diagnostics confirmed the update induced the hardware failure, a known issue reported by other 2021 Model 3 owners on forums like Reddit (e.g., software bricking motherboards post-update). Despite this, Tesla refused warranty/goodwill coverage, quoting $2,576.83 for repairs. Service advisors Josh and Andy were unprofessional: Josh was rude/condescending; Andy was aggressive, sarcastic, and retaliatory. After I mentioned filing complaints with the AZ Attorney General and News Channel 3, Andy threatened $100/day storage fees with an impossible deadline (called at 4 PM Friday, close at 5 PM, demanded pickup by morning, then noon). He closed my ticket without authorization, delaying fixes and forcing me to contact another location—prolonging my exposure to the unsafe vehicle. This defect poses serious safety risks: sudden loss of cameras/autopilot could cause crashes. Tesla's awareness (from prior reports) and poor handling (intimidation delaying repairs) exacerbates the danger. No crash/injury yet, but potential is high. Please investigate this update-induced failure as a widespread defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The car, with no known or evident driver, stopped the lane awareness, cruise control, etc. All of those just stopped working and per Tesla that's expected which is surprising since it's all part of the safety systems. The car's visual cues stopped identifying lanes and as a byproduct of that, none of the dependent features work.

The car, with no known or evident driver, stopped the lane awareness, cruise control, etc. All of those just stopped working and per Tesla that's expected which is surprising since it's all part of the safety systems. The car's visual cues stopped identifying lanes and as a byproduct of that, none of the dependent features work.

Tesla full self driving software malfunctioned and turned into oncoming traffic lanes instead of crossing over to the correct opposite side of the roadway. This occurred after getting off a on ramp in Ukiah, California around 2am Nov 15, 2025. This could have put others in serious danger if there were cars coming in the oncoming lanes heading in the different direction. The problem has not been reproduced by a dealer or other entity. Yet This has happened to other tesla drivers as well using FSD as you are probably already aware. No inspection and it was sudden and unexpected.

I drove into my neighbor’s driveway to drop her off. As I slowed down and applied the brakes to stop, the car failed to respond. It continued forward, running over the flower and plant pots at the edge of the driveway, crossing the backyard, and finally colliding with the trees and bushes at the rear of the property. All airbags deployed, and the vehicle was damaged beyond repair.

I drove into my neighbor’s driveway to drop her off. As I slowed down and applied the brakes to stop, the car failed to respond. It continued forward, running over the flower and plant pots at the edge of the driveway, crossing the backyard, and finally colliding with the trees and bushes at the rear of the property. All airbags deployed, and the vehicle was damaged beyond repair.

Component/System involved: Advanced Driver Assistance Systems — FSD (Supervised)/Autosteer (Lane Keeping Assistance) and Adaptive Cruise Control. Possible failure to warn/stop (FCW/AEB). Vehicle and data are available for inspection upon request. I preserved dashcam files and requested Tesla to preserve engineering logs and EDR. What happened & safety risk: On [XXX] at ~[XXX] PDT on [XXX] near East Palo Alto, CA, with FSD (Supervised) engaged, the system appeared to misinterpret an exit ramp/gore area as a continuing lane at a highway fork and maintained ~60 mph (posted ~70). As soon as I saw the trajectory was unsafe, I braked and began manual steering takeover, but the vehicle contacted a roadside sign near the gore/shoulder before I could complete the maneuver. I then stopped safely. No other vehicles were struck. Airbags did not deploy. This posed a serious collision risk to me, my passenger, and nearby traffic. Reproduction/confirmation: NOT REPRODUCED. I have not attempted to reproduce the event. UNKNOWN whether the issue has been reproduced by Tesla or a service center yet. Inspection to date: Police responded (report pending). My insurer has opened a claim. I opened a Tesla Service request asking to PRESERVE Autopilot/FSD engineering logs for the incident window and to coordinate EDR extraction; engineering review pending. Vehicle remains drivable. Warnings or symptoms before failure: No audible/visual forward-collision warning was perceived by me and I did not observe automatic emergency braking. No prior warning lamps/messages were noticed before the departure toward the gore. UNKNOWN whether any internal/partial interventions were recorded in logs. Evidence available: Four-camera Tesla dashcam footage saved and backed up (see [XXX] ); precise time window ~[XXX] PDT on [XXX]. I can provide files and cooperate with data retrieval/inspection upon request. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Component/System involved: Advanced Driver Assistance Systems — FSD (Supervised)/Autosteer (Lane Keeping Assistance) and Adaptive Cruise Control. Possible failure to warn/stop (FCW/AEB). Vehicle and data are available for inspection upon request. I preserved dashcam files and requested Tesla to preserve engineering logs and EDR. What happened & safety risk: On [XXX] at ~[XXX] PDT on [XXX] near East Palo Alto, CA, with FSD (Supervised) engaged, the system appeared to misinterpret an exit ramp/gore area as a continuing lane at a highway fork and maintained ~60 mph (posted ~70). As soon as I saw the trajectory was unsafe, I braked and began manual steering takeover, but the vehicle contacted a roadside sign near the gore/shoulder before I could complete the maneuver. I then stopped safely. No other vehicles were struck. Airbags did not deploy. This posed a serious collision risk to me, my passenger, and nearby traffic. Reproduction/confirmation: NOT REPRODUCED. I have not attempted to reproduce the event. UNKNOWN whether the issue has been reproduced by Tesla or a service center yet. Inspection to date: Police responded (report pending). My insurer has opened a claim. I opened a Tesla Service request asking to PRESERVE Autopilot/FSD engineering logs for the incident window and to coordinate EDR extraction; engineering review pending. Vehicle remains drivable. Warnings or symptoms before failure: No audible/visual forward-collision warning was perceived by me and I did not observe automatic emergency braking. No prior warning lamps/messages were noticed before the departure toward the gore. UNKNOWN whether any internal/partial interventions were recorded in logs. Evidence available: Four-camera Tesla dashcam footage saved and backed up (see [XXX] ); precise time window ~[XXX] PDT on [XXX]. I can provide files and cooperate with data retrieval/inspection upon request. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On [Wednesday, 07/09/2025], I was driving my Tesla Model 3 in rainy conditions when the vehicle suddenly swerved and crashed into a sidewall. The road was wet but not flooded, and I was traveling at a moderate speed. As I lifted my foot off the accelerator to slow down, the car's regenerative braking system engaged abruptly, which I believe shifted weight forward and caused the rear tires to lose traction. This led to hydroplaning and complete loss of control. There were no warning lights or alerts prior to the incident. The road surface did not have visible hazards or standing water that would typically explain a spinout. The tires were moderately worn but within usable limits. As a result of the crash, the car was declared a total loss. The insurance company now has possession of the vehicle. Thankfully, no one was injured, but the crash was severe. After the incident, I researched similar cases and found multiple reports and articles (e.g., AutoEvolution) linking Tesla’s regenerative braking to increased risk of hydroplaning or loss of control in wet or slippery conditions. The regen system eliminates coasting and applies braking force immediately upon throttle lift-off, which appears to be a safety risk in reduced-traction environments like rain, snow, or ice. I believe this issue deserves investigation, as it may affect the safety of other Tesla drivers in similar weather conditions.

While using traffic aware cruise control or autosteer, the car occasionally detects a nonexistent person in the center of the lane I’m driving in, the proceeds to slam on the brakes when no hazard exists. It seems that tire markings in the road and certain lighting conditions cause the car to think there is a person in the road. Additionally, when driving on a highway with rolling hills, the car detects a forward collision alert and hits the brakes and disengages the autosteer. Both of these could cause a rear and collision at highway speeds. The dealer has claimed that the cause is functionally normally and I already tried to get it serviced but the car continues to have these issues. I do have video evidence of the car slamming on the brakes and detecting a forward collision.

While using traffic aware cruise control or autosteer, the car occasionally detects a nonexistent person in the center of the lane I’m driving in, the proceeds to slam on the brakes when no hazard exists. It seems that tire markings in the road and certain lighting conditions cause the car to think there is a person in the road. Additionally, when driving on a highway with rolling hills, the car detects a forward collision alert and hits the brakes and disengages the autosteer. Both of these could cause a rear and collision at highway speeds. The dealer has claimed that the cause is functionally normally and I already tried to get it serviced but the car continues to have these issues. I do have video evidence of the car slamming on the brakes and detecting a forward collision.

I was driving east on [XXX] in Bourne MA using the Tesla adaptive cruise control system called "Autopilot" in very light traffic conditions. The sun was low on in the sky (behind and to the right). The system automatically engaged the brakes while crossing the bridge without obvious reason, decreasing the car speed about 10 MPH in less than a second before I overrode by pressing the accelerator. I believe the car vision system mistook a shadow cast by the vertical girders on the bridge onto the road as an obstacle. The sudden deceleration was a hazard to those behind that had to brake, but there was no collision or loss of control. The manufacturer seems acknowledge and accept that the defect exists, but has not been able to resolve the problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving east on [XXX] in Bourne MA using the Tesla adaptive cruise control system called "Autopilot" in very light traffic conditions. The sun was low on in the sky (behind and to the right). The system automatically engaged the brakes while crossing the bridge without obvious reason, decreasing the car speed about 10 MPH in less than a second before I overrode by pressing the accelerator. I believe the car vision system mistook a shadow cast by the vertical girders on the bridge onto the road as an obstacle. The sudden deceleration was a hazard to those behind that had to brake, but there was no collision or loss of control. The manufacturer seems acknowledge and accept that the defect exists, but has not been able to resolve the problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My Tesla has full self driving supervised. When I use this feature, since about three updates ago, my Car has started braking for no reason. It hasn’t happened on a freeway, but, but on secondary roads, it will brake and try to come to a stop. It seems to do this, when there is a shadow across the road, or when there is a puddle in or near the road. Sometimes it will brake for no reason at all. I I have come close to being hit from behind. I think this is a dangerous situation that needs to be looked into.

vehicle constantly phantom brakes while driving. i have reported 100+ incidents thru my tesla "report bug" feature. It will read the speed limit sign on the off ramp and slow the vehicle down 20mps abruptly, it will see a car on an onramp and slam the brakes on thinking there is a collision coming. it is every single day using cruise control

My Tesla was operating in Full-Self-Driving Beta when it experienced a sudden uncontrolled accelration event. I was driving on [XXX] at approximatley [XXX] this morning. The road speed limit was 40 mph. The car display was correctly showing that the road speed limit was 40mph. The speed offset in the cars setting was limited to 5 mph max above the speed limit. While the car was driving it suddenly accelerated very hard from approximately 40 mph to over 60mph before I was able to stab the brake pedal and kick the car out of full self driving mode. There were no errors, warnings, or signs that anything was wrong with the car. I have also notified Tesla via the service request function in the Tesla App under the section for "software performance". INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I started receiving messages that the cameras were occluded and that there was an error and ALL of my system safety features were disabled. No front forward collision warnings, no emergency braking available, nothing available and the system computer that showed all of the traffic and everything completely disappeared from the screen, the car has literally gone blind. All of this started happening on with the camera issues in May, but I thought that it was a software issue and would be addressed in the next update, although the critical disengagements were supposed to be sent to Tesla. I took the car to the service center on 9/4/24 at 9am, and they stated that the did a system test and saw that the triple camera was showing a fault and so they replaced the camera and gave it back to me the same day. Everything worked for the rest of that day for a service that took at least 3hours to figure out. Today after I get off of work at 1pm and I go to initiate FSD and I get 3miles from my residence( I live <8mi from my job) and the system disengages again asking me to take over and all of my critical systems have yet again been disabled. My whole safety is compromised at this point yet again. I immediately bring the car back and they tell me that it's going to take them an additional 30-45 mins to "diagnose" the issue although it's the same thing that's been happening that was supposedly fixed yesterday. After that wait time the service consultant comes back and tell me that the car is throwing all kinds of codes and that, "It's still safe to drive." When I told that it cannot be safe to drive if all of the critical systems were disabled he suggested that I take it and they can do a remote log pull so they can look more into the issue or I can leave it as the part that's needed needs to be ordered anyway. I don't know how they can order a part if they're claiming to not know what's wrong with it. Something else is going on that they don't want to take accountability for!

I started receiving messages that the cameras were occluded and that there was an error and ALL of my system safety features were disabled. No front forward collision warnings, no emergency braking available, nothing available and the system computer that showed all of the traffic and everything completely disappeared from the screen, the car has literally gone blind. All of this started happening on with the camera issues in May, but I thought that it was a software issue and would be addressed in the next update, although the critical disengagements were supposed to be sent to Tesla. I took the car to the service center on 9/4/24 at 9am, and they stated that the did a system test and saw that the triple camera was showing a fault and so they replaced the camera and gave it back to me the same day. Everything worked for the rest of that day for a service that took at least 3hours to figure out. Today after I get off of work at 1pm and I go to initiate FSD and I get 3miles from my residence( I live <8mi from my job) and the system disengages again asking me to take over and all of my critical systems have yet again been disabled. My whole safety is compromised at this point yet again. I immediately bring the car back and they tell me that it's going to take them an additional 30-45 mins to "diagnose" the issue although it's the same thing that's been happening that was supposedly fixed yesterday. After that wait time the service consultant comes back and tell me that the car is throwing all kinds of codes and that, "It's still safe to drive." When I told that it cannot be safe to drive if all of the critical systems were disabled he suggested that I take it and they can do a remote log pull so they can look more into the issue or I can leave it as the part that's needed needs to be ordered anyway. I don't know how they can order a part if they're claiming to not know what's wrong with it. Something else is going on that they don't want to take accountability for!

Location: 35.084609,-92.414194 While driving through the roundabout north to south on Amity road, the car has twice now applied automatic emergency braking while exiting the roundabout. There is a billboard 200ft from the road with an image of a person on it. The car is confusing that as a person in the road. This has caused my dog to be thrown (thankfully buckled in) and us to almost be rear-ended both times. This is extremely dangerous issue.

The contact owns a 2021 Tesla Model 3. The contact stated while driving approximately 35 MPH, the vehicle experienced phantom braking, causing the contact to lose control of the vehicle. The contact was driving in a rainstorm during the failure and stated that the vehicle had not hydroplaned nor had the accelerator pedal been released. The contact stated there was no warning light illuminated. The contact stated that the failure occurred another time during a rainstorm. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 74,000.

Mileage: 74,000

Ever since Tesla rolled out an update for everyone to beta test FSD, the adaptive cruise control has been changing speeds when near interstate type exits and entrances. I've had it change from 75 down to 40 mph which is dangerous in traffic. This change in speed some times is just a drop to the next 5mph increment, such as from 73 to 70. Sometimes it is more from 73 to 65 at the same place/exit. It is not consistent. The only thing consistent is it's near exits even when not in an exit lane or nearest lane to the exit. This "Feature" needs to be removed as it is unpredictable which makes it dangerous. Owners manual [XXX] Cruising Near or On Exits INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Tesla ADAS detects non existent objects and issues collision alerts and phantom brakes randomly if there is no cars in front of the Tesla, braking abruptly and almost getting me into rear end accidents. Tesla ADAS freaks out when making lane changes randomly, shaking violently and giving the driver and its passengers a fishtailing simulation. Auto wiper triggers randomly while it's sunny, distracting the driver and forcing an interaction on the center console to stop it. Auto wiper cannot be turned off as it reengages upon using Tesla ADAS. The rear view camera lags. It stutters and shows me a delayed view. Compounded by the Model 3's very small rear view mirrors and side mirrors, this is incredibly dangerous as I have no way of gaining sufficient visibility of the back of the car. Tesla service told me this is all normal.

While using the Full Self Driving Mode (FSD) the vehicle will randomly and without warning slam on the brakes at highway speeds and decelerate to 30-50mph on an active highway. If the highway is multilane, the car will slow and attempt to change lanes. It appears the vehicle thinks that something is in the road, even if the road is clear. This happens multiple times on my longer road trips, and is very concerning. It did this yesterday with a semi-truck closely behind me. The vehicle has gone into service and I did bring up the issue, but the service team was unable to assist on this issue (screenshots attached). The software currently installed in my vehicle is 2024.3.15, the latest available from Tesla. This issues has been ongoing from every software update I have had in the car however.

While using the Full Self Driving Mode (FSD) the vehicle will randomly and without warning slam on the brakes at highway speeds and decelerate to 30-50mph on an active highway. If the highway is multilane, the car will slow and attempt to change lanes. It appears the vehicle thinks that something is in the road, even if the road is clear. This happens multiple times on my longer road trips, and is very concerning. It did this yesterday with a semi-truck closely behind me. The vehicle has gone into service and I did bring up the issue, but the service team was unable to assist on this issue (screenshots attached). The software currently installed in my vehicle is 2024.3.15, the latest available from Tesla. This issues has been ongoing from every software update I have had in the car however.

While using the Full Self Driving Mode (FSD) the vehicle will randomly and without warning slam on the brakes at highway speeds and decelerate to 30-50mph on an active highway. If the highway is multilane, the car will slow and attempt to change lanes. It appears the vehicle thinks that something is in the road, even if the road is clear. This happens multiple times on my longer road trips, and is very concerning. It did this yesterday with a semi-truck closely behind me. The vehicle has gone into service and I did bring up the issue, but the service team was unable to assist on this issue (screenshots attached). The software currently installed in my vehicle is 2024.3.15, the latest available from Tesla. This issues has been ongoing from every software update I have had in the car however.

When using cruise control, auto lane assist and auto pilot, the vehicle will brake or slow down without apparent reason. This can happen suddenly and dramatically. This can happen when there are other cars nearby, but also when there is no other traffic on the road. It is distressing enough when there are no other cars nearby, but can be a hazard when there is other traffic behind me and they have no warning this is happening.

When using cruise control, auto lane assist and auto pilot, the vehicle will brake or slow down without apparent reason. This can happen suddenly and dramatically. This can happen when there are other cars nearby, but also when there is no other traffic on the road. It is distressing enough when there are no other cars nearby, but can be a hazard when there is other traffic behind me and they have no warning this is happening.

This car, like many Teslas, is experiencing what has been come to be known as phantom braking. When in the autopilot or full self driving, this car will occasionally to frequently, depending on the day, suddenly break where it will decelerate from say 65 mph to 45 or 50 in a very short period of time. This can happen in very busy traffic conditions. It seems to happen when I'm going faster rather than slower. For example, I haven't experienced it so much on City Street. It seems much more prominent on highways. This is an issue that has many YouTube videos about. It has been reported by many Tesla owners as well as the media.

This car, like many Teslas, is experiencing what has been come to be known as phantom braking. When in the autopilot or full self driving, this car will occasionally to frequently, depending on the day, suddenly break where it will decelerate from say 65 mph to 45 or 50 in a very short period of time. This can happen in very busy traffic conditions. It seems to happen when I'm going faster rather than slower. For example, I haven't experienced it so much on City Street. It seems much more prominent on highways. This is an issue that has many YouTube videos about. It has been reported by many Tesla owners as well as the media.

On March 31st, Tesla alerted me that I had been "granted a 30-day complimentary trial of Full Self-Driving" capabilities. They didn't make it clear that the service was automatically enabled (vs. allowing me to opt-in) and did not provide any information about how it operates. Because I have no interest in the service, I didn't click the "Learn More" button in the email. Since the service was turned on, the car has unexpectedly "grabbed" my steering wheel twice while I was driving. I now understand that it's possible that I turned it on without knowing it but, again, I wasn't given any instructions. I was terrified. When I pulled over and tried to find an "off" button, I discovered there is none. When I spoke to Tesla today, I was told that there is no "off" for the service and that all I can do set it to the least invasive setting and "live with it" until the trial period expires on April 30th. I can still feel the car self-adjusting my speed and steering. I remain terrified that it's going to cause an accident. The bottom line: because I've had the car for two years and did not purchase AutoPilot, I KNOW there's a way to disable it entirely. Tesla is simply refusing to do it and using me as a lab rat with no regard for my safety.

My vehicle is 3 years old and has roughly 52000 on it. After a recent software update (within the past month or so) all of the automatic safety features such as automatic braking, blind spot monitoring, cruise control stopped working on the vehicle. I brought it to Tesla and they confirmed the issue and said the entire ECU needs to be replaced, a $2700 expense on a 3 year old car. There is a warning message every time I start the car that says the automatic breaking is not working.

My vehicle is 3 years old and has roughly 52000 on it. After a recent software update (within the past month or so) all of the automatic safety features such as automatic braking, blind spot monitoring, cruise control stopped working on the vehicle. I brought it to Tesla and they confirmed the issue and said the entire ECU needs to be replaced, a $2700 expense on a 3 year old car. There is a warning message every time I start the car that says the automatic breaking is not working.

Problem: As the vehicle is driven and the Adaptive Cruise Control, AutoSteer, FSD, …. is activated. As the system detects an unexpected outside event, the vehicle would slow down for a few seconds, then it would continue driving and re-accelerate to about the same speed that it was before and/or to the maximum set speed. Opinion: This is can be dangerous if the driver is not observant, alert, and does not control the vehicle which can be dangerous and cause death, destruction, and/or damage to the driver, passengers, pedestrians, vehicle, surrounding vehicles, fixed objects, etc. Possible Solution: As the vehicle is driven and the Adaptive Cruise Control, AutoSteer, FSD, …. is activated. Once the system detects an unexpected outside event the system should: * Temporarily Disable Adaptive Cruise Control, AutoSteer, FSD, …. * Interior Cabin LCD would flash Yellow/Orange and beep quickly 3 times in a row - Showing a message on the screen “For the safety of you and others _____ (Adaptive Cruise Control, AutoSteer, FSD, …. ) has been temporarily disabled due to an unexpected outside event. Please re-enable ____ (Adaptive Cruise Control, AutoSteer, FSD, …. ) when it is safe.” Possible Solution Reason: * Temporarily Disabling Adaptive Cruise Control, AutoSteer, FSD, …. disables the drivers dependence on the system, slows the vehicle, and forces the driver to take control of the vehicle, situation, and avoid the unexpected outside event. * Alerting/notifying the driver alerts the driver to a dangerous unexpected outside event that the driver needs to assess and know the best course of action.

Autonomous Driving Problem [XXX] Driving from Cornelia, GA to Commerce, GA on [XXX] at 60 mph driving on the right lane with very lite traffic. 6 different times the FSD (Full Self Driving) (Supervised) 2021 Tesla Model 3 starts signaling left and changes lanes with no traffic or vehicles in front. The 5th time FSD (Supervised) changed lane to the left was a near car accident because a car was speeding at 70-80 mph from the rear and the vehicle changed lanes in front of the speeding car nearly causing an accident. The autonomous cabin driver detection sensor does continuously give false positive warning messages to the driver to "Pay attention to the road" when I am wearing my glasses, so I have to drive without my glasses. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Hi Tesla installed a new software update yesterday. Today when I began driving my car and I turned on the adaptive cruise control I found that the car was completely in autopilot and it was extremely to take control over the car again as I was initially unable to steer and it took a few seconds for it to discontinue the autopilot. This is very concerning because the car was set in the preferences (see attached photo) to autopilot (Full Self-Driving (Supervised)" in the preferences) even though I have never used it and has it set to adaptive cruise control ("Traffic-Aware Cruise Control" in the preferences). I am concerned that Tesla switched the preference to autopilot just after offering a free 30 day trial which I did not accept. I understand that full self-driving has never been approved and yet Tesla is flaunting the law and forcing drivers to use it without notifying us or requesting our permission. Tesla needs to be immediately held accountable for this reckless and dangerous behavior which put myself and likely many other driver's lives at risk. Thank you, [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On or around March 31, 2024 Tesla delivered a software update to my vehicle that changed the way adaptive cruise control is engaged, as well as the behavior of the vehicle when the setting is activated. In the few days since the change, I twice inadvertently engaged the adaptive cruise control, once while attempting to park on a congested residential street where it was very dangerous to have the vehicle accelerate without my taking action. I panicked and was able to shut it off quickly, but I didn’t know why it had been enabled. Today I was driving and had intentionally engaged the adaptive cruise control when the car attempted to signal and change lanes. This was wholly unexpected, and I was not prepared to monitor the vehicle taking other actions besides maintaining its lane and speed in traffic. I reviewed the settings for the feature and discovered the adaptive cruise control with lane guidance, termed “Autosteer” in the Tesla vehicle, had been replaced by “Self-Driving (Supervised).” The activation of the feature was changed from a double pull on the shift lever to a single pull. This explained my twice inadvertently activating the feature, and the car propelling itself forward unexpectedly, on those two other occasions. It is extremely dangerous for the car manufacturer to suddenly and without warning change the way the vehicle is operated. I believe I was fortunate to avoid an accident on two occasions while the vehicle unexpectedly took control over driving. Had I not reacted within one second to disable the feature, I might not have avoided a collision.

After a recent update to the "Full Self-Driving" software stack (new version2023.44.30.25; FSD Beta v12.3), we drove from Charleston to Atlanta and back, with much of the trip on Interstate Highways [XXX] and [XXX]. A very troubling new phenomenon was noted: every time we passed a "Minimal Speed" sign, the car would drop the Speed Limit setting on the control panel to 40 MPH. In many of the iterations of this problem, the speed of the car dropped precipitously, creating a potentially dangerous situation. I had the software set to Auto speed limit offset, which in some circumstances maintained the speed around 70 MPH because it was keying on surrounding traffic, but in some instances the speed did not reset until we passed another "Speed Limit 70 MPH" sign. Often, I had to react by manually raising the Max Speed setting to the speed limit. This happened repeatedly (essentially every time we passed a Minimum Speed sign, unless the sign was obstructed from camera view by a semi). Please address this with Tesla and ask for an immediate bug fix and recall (software update). It is potentially very dangerous. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While driving [XXX] on [XXX] in Texas, the Tesla autopilot abruptly and forcibly applied the brakes while I was driving approximately 77 mph. I was almost rear ended by a semi truck due to this issue. This happened again about 20 miles down the road and I disengaged the cruise control and autopilot altogether at that point. This is a continuous problem that needs to be addressed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Full Self Driving and cruise control brakes randomly and violently with no warning at highway speeds. This has happened no less than 20 times on one trip on 8 March 2024. This has put myself and other vehicles in extreme danger. The model has had this issue known by the manufacturer and nothing has been done. This braking occurs with no warning other than the vehicle slamming on the brakes. This needs to be fixed asap, its a hazard to me as the driver and the general public

Complete computer failure leaving cars safety systems not working. Had to pay 3000$ for a new computer for a new car. Did not have car for three weeks. No systems would work.

My 2021 Tesla Model 3 has various issues with the auto pilot feature. When engaged the car makes sudden and abrupt stops while driving. This has happened various times while driving on the freeway when there were no obstructions present. The autopilot feature also prompts to change to the right lane, when dismissed the prompt appears again repeatedly. This is repeated throughout the drive and poses a major distraction. There was supposed to be an “over-the-air” correction but my vehicle has never received the software update.

While traveling west on [XXX] in Dane county just before exit [XXX], I experienced unexpected braking while using TACC. My cruise speed was set at 72 MPH and I observed the set speed changed itself to (I think) 40 MPH. This caused the car to quickly begin braking to slow my speed to this new speed. I had to intervene and accelerate manually while also trying to reset the set speed. Thankfully no one was directly behind me, as this was incredibly unsafe. This has occurred at this location more than once. I'm not sure if the GPS perhaps thought I was on the exit ramp instead? TACC and autopilot seem to work normally elsewhere. It has not otherwise been inspected. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

You guys have ruined auto pilot and made it less safe. Quit trying to get a promotion or recognition by going after Tesla. My model 3 was the safest car to drive hands down. I've had 17 different cars in the last 20 years, Tesla's are like anything else I've ever driven. The problem you caused by forcing stricter safety for autopilot, actually makes it way less safe. Before it assisted on highways so I could briefly do things like change temperature, music, or navigation without accidently running off the road or colliding with another vehicle. Now it's so sensitive with warnings to pay attention, it's actually a distraction. Look at my speed, warning to pay attention. Check my surroundings in mirror, warning. Change temperature, warning. It's to the point where it's distracting me more then anything I would do in a traditional car. Seriously, NHTSA can go [XXX] itself. Someone in the government always trying to make a name for themselves acting like a savior for the people. Why don't you make yourself useful and go after those [XXX] traditional company's like Ford. Ford always rolls out vehicles with serious safety defects, but weigh the cost of recalls/lawsuits against profit. Ford shouldn't be allowed to sell vehicles in the US, yet you go after Tesla, who in my opinion makes the safest car ever created. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I leased a Tesla Model 3 on [XXX] in Tampa, Florida On [XXX] the car went into Sudden Unintended Acceleration as I was coming out of a "Hold" at a Yield sign where I was at a complete stop waiting for traffic to fully clear for a right hand turn onto a two lane street. I was coming off of [XXX] onto [XXX] in St. Petersburg, Florida. As I started the turn, the Tesla tossed me onto the curb and along a pedestrian sidewalk at high speed. I tried to brake, but the car continued plowing towards a traffic sign that I avoided hitting by making a hard left to try to get back onto the street. Instead of returning me to the street and my lane, the Tesla threw me left across two lanes of traffic, over a grass divider, and into two lanes of oncoming traffic heading straight for a head on collision. At this point, the steering wheel went out, was completely unresponsive and just kept spinning around. The brake was still not responding. I kept spinning the wheel towards the right until at the last minute the car sped back onto the correct side of the road where I was abruptly and without any kind of a jolt, able to regain control of the car: the brake responded and the steering wheel stopped spinning. I then drove at a speed of about 20 miles an hour to the closest residential street. After stopping to gather my wits for about half an hour, I slowly drove home with the emergency lights on and parked it in the parking lot. The Tesla had damage to the front and undercarriage. The Tesla's steering wheel pulled to the right. I did not get into that Tesla again and demanded that they tow the car away and warn others that it is a death trap. They towed the car. I am never getting into any other Tesla again for as long as I live. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I leased a Tesla Model 3 on [XXX] in Tampa, Florida On [XXX] the car went into Sudden Unintended Acceleration as I was coming out of a "Hold" at a Yield sign where I was at a complete stop waiting for traffic to fully clear for a right hand turn onto a two lane street. I was coming off of [XXX] onto [XXX] in St. Petersburg, Florida. As I started the turn, the Tesla tossed me onto the curb and along a pedestrian sidewalk at high speed. I tried to brake, but the car continued plowing towards a traffic sign that I avoided hitting by making a hard left to try to get back onto the street. Instead of returning me to the street and my lane, the Tesla threw me left across two lanes of traffic, over a grass divider, and into two lanes of oncoming traffic heading straight for a head on collision. At this point, the steering wheel went out, was completely unresponsive and just kept spinning around. The brake was still not responding. I kept spinning the wheel towards the right until at the last minute the car sped back onto the correct side of the road where I was abruptly and without any kind of a jolt, able to regain control of the car: the brake responded and the steering wheel stopped spinning. I then drove at a speed of about 20 miles an hour to the closest residential street. After stopping to gather my wits for about half an hour, I slowly drove home with the emergency lights on and parked it in the parking lot. The Tesla had damage to the front and undercarriage. The Tesla's steering wheel pulled to the right. I did not get into that Tesla again and demanded that they tow the car away and warn others that it is a death trap. They towed the car. I am never getting into any other Tesla again for as long as I live. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The cruse control is unable to keep its speed and sometimes the vehicule breaks suddently on the highway, especially when the road is wet. The cameras are obstructed by mist or other dirt and the system does not work properly. Related to this problem, the wipers are dangerous to operate. When the cruse control is engaged, then the wipers are forced to automatic mode, which does not work properly. It could start to swipe the dirty mist and actually reduce visibility. Operating the wipers with the touch screen is a hazard, forcing the driver to leave the eyes from the road. I contacted Tesla about these problems last year and the company did nothing. Even worst, on their new cars they removed the stalks completely, which is a non sens. The NHTSA has to intervene.

While using adaptive cruise control, at highway speeds, there was aggressive, automatic braking when there was no vehicle in front of me. It happened about half a dozen times on a three-day trip from Indiana to Florida. Luckily, in each case there was no vehicle directly behind me.

FSD Computer module (AP3 module) when starting to fail causes all active safety systems to top functioning, including but not limited to Lane Assistance, Automatic Emergency Breaking, Adaptive Cruise Control, Lane Departure Warning, Lane Keeping Assistance, Blind Spot Warning, Pre-collision systems, etc. This is due to the ECU that processes the video feeds from the cameras needed for these function begins to fail, and is not surprising. What is surprising is there are absolutely zero customer or service facing alerts for this issue. Customers simply are unable to manually activate some features, vehicle display has difficulty recognizing objects and lane markings, and the service menu (meant for vehicle service/repair) shows part of the ECU as critical in diagnostics, but does not provide an alert. I can only guess that as previously only half of the module was used at a time, with the second half being for redundancy incase of a failure on one part of the unit, still allowing for full functionality. However, in newer versions of the vehicles software both halfs of the module are used simultaneously to increase processing power, thus eliminating redundancy. It is possible that due to the past redundancy that a failure of one half of the unit was not considered a cause for alarm (though I would have hoped a failing component would have caused an alert, unless the companies hope was that one half would work long enough on its own until it no longer needed to be covered under warranty). However, given both processors and now being actively used there should definitely be alerts and warnings. In addition to losing the convenience of several of these systems there is also a negative safety aspect of systems such as accident avoidance, pre-collision seatbelt tensioning, and others may not work in a pending collision (not that I have seen these systems function properly in past collisions when the module was fully working).

FSD Computer module (AP3 module) when starting to fail causes all active safety systems to top functioning, including but not limited to Lane Assistance, Automatic Emergency Breaking, Adaptive Cruise Control, Lane Departure Warning, Lane Keeping Assistance, Blind Spot Warning, Pre-collision systems, etc. This is due to the ECU that processes the video feeds from the cameras needed for these function begins to fail, and is not surprising. What is surprising is there are absolutely zero customer or service facing alerts for this issue. Customers simply are unable to manually activate some features, vehicle display has difficulty recognizing objects and lane markings, and the service menu (meant for vehicle service/repair) shows part of the ECU as critical in diagnostics, but does not provide an alert. I can only guess that as previously only half of the module was used at a time, with the second half being for redundancy incase of a failure on one part of the unit, still allowing for full functionality. However, in newer versions of the vehicles software both halfs of the module are used simultaneously to increase processing power, thus eliminating redundancy. It is possible that due to the past redundancy that a failure of one half of the unit was not considered a cause for alarm (though I would have hoped a failing component would have caused an alert, unless the companies hope was that one half would work long enough on its own until it no longer needed to be covered under warranty). However, given both processors and now being actively used there should definitely be alerts and warnings. In addition to losing the convenience of several of these systems there is also a negative safety aspect of systems such as accident avoidance, pre-collision seatbelt tensioning, and others may not work in a pending collision (not that I have seen these systems function properly in past collisions when the module was fully working).

FSD Computer module (AP3 module) when starting to fail causes all active safety systems to top functioning, including but not limited to Lane Assistance, Automatic Emergency Breaking, Adaptive Cruise Control, Lane Departure Warning, Lane Keeping Assistance, Blind Spot Warning, Pre-collision systems, etc. This is due to the ECU that processes the video feeds from the cameras needed for these function begins to fail, and is not surprising. What is surprising is there are absolutely zero customer or service facing alerts for this issue. Customers simply are unable to manually activate some features, vehicle display has difficulty recognizing objects and lane markings, and the service menu (meant for vehicle service/repair) shows part of the ECU as critical in diagnostics, but does not provide an alert. I can only guess that as previously only half of the module was used at a time, with the second half being for redundancy incase of a failure on one part of the unit, still allowing for full functionality. However, in newer versions of the vehicles software both halfs of the module are used simultaneously to increase processing power, thus eliminating redundancy. It is possible that due to the past redundancy that a failure of one half of the unit was not considered a cause for alarm (though I would have hoped a failing component would have caused an alert, unless the companies hope was that one half would work long enough on its own until it no longer needed to be covered under warranty). However, given both processors and now being actively used there should definitely be alerts and warnings. In addition to losing the convenience of several of these systems there is also a negative safety aspect of systems such as accident avoidance, pre-collision seatbelt tensioning, and others may not work in a pending collision (not that I have seen these systems function properly in past collisions when the module was fully working).

When autopilot is engaged, car unexpectedly brakes with no obstacle in front of car. Some called it “phantom braking”.

The latest software update version: 2023.44.30.5.1 08a3a7856854 Is too stringent with having to keep eyes on the road that looking in the mirror causes it to beep. Also having to touch the steering wheel constantly is dangerous because if you move with slightly too much force, it disengages autopilot. I only use the autopilot feature on the freeway and I have never had an issue until this update, which I believe was made to make the system safer. In my view it is now much less safe since I’m not able to check my mirrors and ultimately I think it makes the autopilot feature useless. (I will not be using it) this is also less safe, in my view. Because before I would watch the road as the car steered, ready to take over, so it was like having redundant safety (human + machine). Now I’m back to just human safety.

Driver assisst function for cruise control/autosteer failed/malfunctioned. Applied Emergency braking systems while autosteer/driver control active. Multiple times on freeway. OTA software Updates require additional data downloading and are not required to install. Never received update and safety issues resolved via OTA are already being exposed and they are not allowed to do anything to prevent any damage or loss to the vehicle. Wifi at all government EV charging stations is a basic requirement.

Driver assisst function for cruise control/autosteer failed/malfunctioned. Applied Emergency braking systems while autosteer/driver control active. Multiple times on freeway. OTA software Updates require additional data downloading and are not required to install. Never received update and safety issues resolved via OTA are already being exposed and they are not allowed to do anything to prevent any damage or loss to the vehicle. Wifi at all government EV charging stations is a basic requirement.

Driver assisst function for cruise control/autosteer failed/malfunctioned. Applied Emergency braking systems while autosteer/driver control active. Multiple times on freeway. OTA software Updates require additional data downloading and are not required to install. Never received update and safety issues resolved via OTA are already being exposed and they are not allowed to do anything to prevent any damage or loss to the vehicle. Wifi at all government EV charging stations is a basic requirement.

After the latest update the Tesla autopilot feature is very unsafe to use. The screen constantly pings and nags the driver to pay attention drawing my attention away from the road. The system has become so sensitive that adjusting the AC down a degree causes the warning to pop up which distracts the driver and in my opinion is significantly less safe than the older version. The warnings are too sensitive and the noise/warnings flashing are significantly more distracting

The car's autopilot suddenly causes it to slow down without any apparent reason. There are no cars in front of me, and the speed limit hasn't changed. This unexpected deceleration is dangerous because the cars behind me may try to avoid me during the slowdown, which could lead to an accident.

Ul_a022_ApeFusesEtc Audience [service-fix, factory) Description Driver Assistance ECU (APE) is not fused or not locked or missing credentials Set Condition Driver Assistance ECU is not fused or not locked or missing credentials Clear Condition Driver Assistance ECU is fused, locked and has proper credentials Potential Impact Driver Assistance ECU is in an unsecured state (unfused)

Driving on I-5 North from Los Angeles to San Francisco with adaptive cruise control activated. Suddenly and without warning car activates emergency braking as if it sees an obstruction on the road but obviously road was clear of any obstructions. This happened 4 times then I finally decided to no longer use cruise control. This happened on a clear sunny day around noon time 9/8/23.

Driving on I-5 North from Los Angeles to San Francisco with adaptive cruise control activated. Suddenly and without warning car activates emergency braking as if it sees an obstruction on the road but obviously road was clear of any obstructions. This happened 4 times then I finally decided to no longer use cruise control. This happened on a clear sunny day around noon time 9/8/23.

Recently on a trip between Wichita Falls and Quanah Texas, my Tesla Model 3 while on autopilot repeatedly braked hard while traveling at 75 mph in moderate traffic. While this is a frequent occurrence with my model 3, this is the first time I felt at risk of an accident due to how hard the vehicle was breaking.

Recently on a trip between Wichita Falls and Quanah Texas, my Tesla Model 3 while on autopilot repeatedly braked hard while traveling at 75 mph in moderate traffic. While this is a frequent occurrence with my model 3, this is the first time I felt at risk of an accident due to how hard the vehicle was breaking.

Recently on a trip between Wichita Falls and Quanah Texas, my Tesla Model 3 while on autopilot repeatedly braked hard while traveling at 75 mph in moderate traffic. While this is a frequent occurrence with my model 3, this is the first time I felt at risk of an accident due to how hard the vehicle was breaking.

While driving on a divided four lane interstate state highway, during daylight hours, sunny, clear, dry, minimal crosswind, the car spontaneously braked while under cruise control from approximately 75mph to 45mph. There was no oncoming traffic or mirages. Fortunately no following traffic either because they would have either struck us or run off the road. This happened three times in a very short period and we haven’t used it since.

While the Traffic-Aware Cruise Control was engaged, my car abruptly tried to stop 8 times on the interstate while traveling at 80mph (the speed limit on the open stretch of road in central Utah). The weather was clear, no clouds, no wind, very light traffic, very good roads, no debris on the road, about 85 degrees, no shadows were cast on the road and during the day. I was on a 5 hour road trip. Out of the blue on at least 5 of the occasions, with a vehicle about a half mile or more ahead of me and no vehicle next to me my car abruptly braked - like emergency breaking - for no apparent reason. Two of the phantom braking occurrences happened when after passing a vehicle and I signaled and pulled back in to the right lane with at least a 3 second space, and my car emergency braked. This about caused an accident and thankfully it did not cause a road rage incident. Two of the times we were snacking once on vegetables when the car phantom braked and the bowl and vegetables went flying forward. Thankfully none of the times did I have my cup to my mouth as I would have gotten hot coffee on me and could have burned myself or have caused some destruction to my car. The passenger in my car safety was at great risk as well as everyone on the road near me. No warning that the car saw something or was going to emergency brake. My vehicle is available for inspection. I have not taken it to a dealer or elsewhere for replication nor has the vehicle or component(s) been inspected. There were never any warning lamps, messages or other symptoms of the problem prior to the failure. Also, the problem occurs 100% of the time I am at one particular place on a local freeway so it can be replicated. I do know that it will occur there so I plan for it. When I travel this road south bound there is never a problem but when I travel north bound 100% of the time my car will phantom brake regardless if it's day, night, clear or wet. Tesla needs another option for cruise control now!

While the Traffic-Aware Cruise Control was engaged, my car abruptly tried to stop 8 times on the interstate while traveling at 80mph (the speed limit on the open stretch of road in central Utah). The weather was clear, no clouds, no wind, very light traffic, very good roads, no debris on the road, about 85 degrees, no shadows were cast on the road and during the day. I was on a 5 hour road trip. Out of the blue on at least 5 of the occasions, with a vehicle about a half mile or more ahead of me and no vehicle next to me my car abruptly braked - like emergency breaking - for no apparent reason. Two of the phantom braking occurrences happened when after passing a vehicle and I signaled and pulled back in to the right lane with at least a 3 second space, and my car emergency braked. This about caused an accident and thankfully it did not cause a road rage incident. Two of the times we were snacking once on vegetables when the car phantom braked and the bowl and vegetables went flying forward. Thankfully none of the times did I have my cup to my mouth as I would have gotten hot coffee on me and could have burned myself or have caused some destruction to my car. The passenger in my car safety was at great risk as well as everyone on the road near me. No warning that the car saw something or was going to emergency brake. My vehicle is available for inspection. I have not taken it to a dealer or elsewhere for replication nor has the vehicle or component(s) been inspected. There were never any warning lamps, messages or other symptoms of the problem prior to the failure. Also, the problem occurs 100% of the time I am at one particular place on a local freeway so it can be replicated. I do know that it will occur there so I plan for it. When I travel this road south bound there is never a problem but when I travel north bound 100% of the time my car will phantom brake regardless if it's day, night, clear or wet. Tesla needs another option for cruise control now!

While the Traffic-Aware Cruise Control was engaged, my car abruptly tried to stop 8 times on the interstate while traveling at 80mph (the speed limit on the open stretch of road in central Utah). The weather was clear, no clouds, no wind, very light traffic, very good roads, no debris on the road, about 85 degrees, no shadows were cast on the road and during the day. I was on a 5 hour road trip. Out of the blue on at least 5 of the occasions, with a vehicle about a half mile or more ahead of me and no vehicle next to me my car abruptly braked - like emergency breaking - for no apparent reason. Two of the phantom braking occurrences happened when after passing a vehicle and I signaled and pulled back in to the right lane with at least a 3 second space, and my car emergency braked. This about caused an accident and thankfully it did not cause a road rage incident. Two of the times we were snacking once on vegetables when the car phantom braked and the bowl and vegetables went flying forward. Thankfully none of the times did I have my cup to my mouth as I would have gotten hot coffee on me and could have burned myself or have caused some destruction to my car. The passenger in my car safety was at great risk as well as everyone on the road near me. No warning that the car saw something or was going to emergency brake. My vehicle is available for inspection. I have not taken it to a dealer or elsewhere for replication nor has the vehicle or component(s) been inspected. There were never any warning lamps, messages or other symptoms of the problem prior to the failure. Also, the problem occurs 100% of the time I am at one particular place on a local freeway so it can be replicated. I do know that it will occur there so I plan for it. When I travel this road south bound there is never a problem but when I travel north bound 100% of the time my car will phantom brake regardless if it's day, night, clear or wet. Tesla needs another option for cruise control now!

Intro: This is a well known problem with Tesla cars. It's referred to as "phantom braking" in the Facebook Tesla groups and is wide spread. Using only cameras since around 2021 for adaptive cruise control, the car will "slam on the brakes" even though the road is completely clear ahead. This can easily cause an accident if there is a car following you. It has occurred several times since I bought the car Jan 2022. - malfunction component adaptive cruise control. yes available for inspection - a rear end collision could occur when the car's brakes are activated so hard that the car decelerates from 70 to 20 in seconds - the problem is well documented - no, no inspection by any entity. Tesla knows the problems exists - no, no warning of any kind

Major phantom Braking at 70mph on interstate 5, 4 times the brakes slamed on as if yo had done an emergency stop from 70mph to 20mph fortunately we were not rear ended as I had my son and grandchildren in the car. The car was in cruise control on each occurrence I finally had to stop using it for fear of a major accident

Major phantom Braking at 70mph on interstate 5, 4 times the brakes slamed on as if yo had done an emergency stop from 70mph to 20mph fortunately we were not rear ended as I had my son and grandchildren in the car. The car was in cruise control on each occurrence I finally had to stop using it for fear of a major accident

I was driving west bound on I4 August 12th 2023 at 1236pm at mile marker 45-47. I was in the left hand lane with the cruise control set at 73 mph. all traffic was moving well. there was no car in front of me. there was a car passing me slowly on the right. there was a retaining wall to my left. My car for no reason changed the setting on my cruise control from 73 to 35mph. this caused my husband and I to be thrown forward and I had to jam on the gas to try to regain speed. This was the 4th time this happened and the second time I have reported to Tesla who insists that there is nothing wrong with the car. I am scared if someone is following me closely I will be rear-ended at a high rate of speed. They continue to quote information from the manual and in the invoices insinuating that any incident occurring from this would be my fault. This is a terrifying thing to happen when there is no reason for the car to slow for any reason.

My Tesla Model 3 Phantom Brakes when using Cruise Control, particularly in the morning when the road is clear, no cars or obstacles in front or behind me. The NHTSA KNOWS THIS IS A PROBLEM AND I HAVE PREVIOUSLY MADE THIS COMPLAINT. I contacted Tesla to no avail. They did nothing. WHY HASN'T THE NHTSA DONE ANYTHING ABOUT THIS ISSUE. THIS IS DANGEROUS AS AN ACCIDENT IS WAITING TO HAPPEN.

While the car was parked in a parking lot, I get two notification stating “Sentry mode has turned off due to a sentry system error.” When I checked out the car, the car has completely failed to do any of the computer related task, leaving only the gear, AC, and Bluetooth was working. None of the cameras, GPS, sensors, brightness mode and many others were completely stuck. This continued until the next day. This happened without prior symptoms or warnings. I would have been in deep trouble if I have been driving at the time of the incident. When I took the car to the shop, tesla didn’t update the status for a week. After a week, Tesla told us that the Turbo A, Autopilot main processor chip failed. This caused the autopilot to go on loop. Therefore the whole motherboard needed to be replaced. This happened to a brand new purchased Tesla 2021 standard range. Which cost me $2404.00.

The vehicle was traveling in excess of 75 mph with only the autopilot system enabled. The vehicle brakes engaged by itself enough to squeal the tires and the rear end momentarily broke free from the pavement. I disengaged autopilot and drove for approximately 5 minutes. I reengaged autopilot and approximately 5 minutes later the brakes engaged again. I left autopilot disengaged for the remainder of the trip (~ 4 hrs) There were no other vehicles nearby but the breaking was severe enough that if another vehicle had been behind me, it could have caused a collision. The dealer acknowledges that this unintended breaking does occur on other vehicles. There was no warning that the vehicle would severely brake. The weather was clear with bright sun on route I25 south of Denver.

Just completed a 2week trip and the car attempted to stop on its own over 37 times (stopped counting) on the highway. 2times I had a semi within a block of my rear of the car. Since this occurrence is not anticipated it worries me that it's going to cause an accident. Reported to Tesla and it's days the feature is beta, I don't believe that for a second . This my 3td car with adaptive cruise control. I was not using the auto guidence feature.

Just completed a 2week trip and the car attempted to stop on its own over 37 times (stopped counting) on the highway. 2times I had a semi within a block of my rear of the car. Since this occurrence is not anticipated it worries me that it's going to cause an accident. Reported to Tesla and it's days the feature is beta, I don't believe that for a second . This my 3td car with adaptive cruise control. I was not using the auto guidence feature.

When cruise control is activated at highways speeds, vehicle sometimes brakes abruptly for no reason whatsoever. Issue is phantom braking. No other cars in sight, no changes in speed limits. Happened repeatedly on CA Hwy 46 between Interstate 5 and US 101 on 7/31/23 and 8/2/23. Similar instances observed on other highways, too.

When cruise control is activated at highways speeds, vehicle sometimes brakes abruptly for no reason whatsoever. Issue is phantom braking. No other cars in sight, no changes in speed limits. Happened repeatedly on CA Hwy 46 between Interstate 5 and US 101 on 7/31/23 and 8/2/23. Similar instances observed on other highways, too.

My 2021 Tesla Model 3 is having MORE occurrences of phantom braking than ever before when I drive with the Tesla Autopilot/Full Self Driving system activated. I paid extra for Full Self Drive (FSD) and engage it mostly on highway driving. A recent software update from Tesla pops up a message on my screen any time I DIS-engage the FSD asking me "What Happened?" and offers me the chance to record a 10-second voice message regarding why I turned off the FSD. Yesterday, on 07/31/2023 between 12pm PST and 2pm PST I must have made at least five such recordings, each time for phantom braking suddenly jerking my car slower while I drove on major highways. In each case I was on a 55 mph highway (or faster). In all the cases, my lane was wide open with NO cars even remotely close to me. Sometimes there was oncoming traffic in the approaching lane of traffic, but not always. It certainly should not be braking due to oncoming cars in THEIR CORRECT LANE. Yet the car slowed down suddenly over and over again. This is a repeated problem, but I haven't had so many instances in one long drive. Yesterday I got fed up and resorted to driving without Autopilot for a large portion of my 150 mile trip home. Sudden braking - for no reason - substantially increases the risk of getting rear-ended by the car behind and frankly causes near-panic with people in the car itself.

“Phantom Braking”. Driving on the interstate approximately 75 mph using cruise control, auto steer, not auto pilot. Within a span of three hours today we experienced at least six episodes of the car emergency braking for apparently no reason. Immediately going from 75 to 40 mph. Thankfully no one was close behind us. We finally stopped using the cruise control. Now afraid to use it at all.

“Phantom Braking”. Driving on the interstate approximately 75 mph using cruise control, auto steer, not auto pilot. Within a span of three hours today we experienced at least six episodes of the car emergency braking for apparently no reason. Immediately going from 75 to 40 mph. Thankfully no one was close behind us. We finally stopped using the cruise control. Now afraid to use it at all.

The contact owns a 2021 Tesla Model 3. The contact stated while using a self-driving mode at 50 mph, it would not stay in the lane and drive slowly into the next lane. The contact stated on April 9, 2023, while using a self-driving mode at 15 mph, a pedestrian walked into the lane and the vehicle did not detect the person and hit the pedestrian. No air bags deployed. The contact did not sustain any injuries. The pedestrian sustained an unknown fractured leg and a fractured arm and sought medical attention for his injuries. A police report was filed. The vehicle was not drivable. The vehicle was towed to a Tesla collision shop and had the front windshield replaced. The contact took the vehicle to the local dealer but was informed no failure was detected. The vehicle was not repaired and continued to experience the failure. The manufacturer had been informed of the failure. The failure mileage was 48,570.

Mileage: 48,570

The contact owns a 2021 Tesla Model 3. The contact stated while using a self-driving mode at 50 mph, it would not stay in the lane and drive slowly into the next lane. The contact stated on April 9, 2023, while using a self-driving mode at 15 mph, a pedestrian walked into the lane and the vehicle did not detect the person and hit the pedestrian. No air bags deployed. The contact did not sustain any injuries. The pedestrian sustained an unknown fractured leg and a fractured arm and sought medical attention for his injuries. A police report was filed. The vehicle was not drivable. The vehicle was towed to a Tesla collision shop and had the front windshield replaced. The contact took the vehicle to the local dealer but was informed no failure was detected. The vehicle was not repaired and continued to experience the failure. The manufacturer had been informed of the failure. The failure mileage was 48,570.

Mileage: 48,570

Electrical system rebooted in the middle of driving: screen went off couldn't signal i swayed to the side and waited till the screen came back on after 3 minutes.

Constant phantom breaking

Constant phantom breaking

When vehicle is in cruise control or autopilot the car will suddenly brake without warning. It will do this numerous times and could cause an accident if a vehicle is following close behind.

When vehicle is in cruise control or autopilot the car will suddenly brake without warning. It will do this numerous times and could cause an accident if a vehicle is following close behind.

Multiple phantom breaking events while driving at highway speed. Luckily there were no cars behind us, otherwise there could have been a collision. Caused driver and passenger whiplash and items in car to be forcibly displaced. There were no advance warning. Tried to report to manufacturer but they seem to be closed for the holiday, will try again to report after holiday.

Car “Phantom brakes” constantly when going over a hill when it does not have vision. The braking is aggressive at freeway speeds and poses a risk for rear end collisions or road rage incidents if people think they are being brake checked.

Car “Phantom brakes” constantly when going over a hill when it does not have vision. The braking is aggressive at freeway speeds and poses a risk for rear end collisions or road rage incidents if people think they are being brake checked.

1:Brake fail when trying to stop the car after the accident. The car is available for inspection at Arrow towing service Oklahoma City. 2: After the car accident the car keep going can't stop got Tee boned and my passenger broke his legs and ankles, elbow. 3: No, the problem has not be discussed with the dealer or manufacturer yet. 4: No one, including police, insurance have been inspect it. 5: No warning lamp or any kind of warning.

When driving the Tesla model 3 in cruise control, It will without warning apply the brakes. I have to then accelerate and then take it out of cruise control. The issue has happened about a dozen times and only happens while in cruise control. It happened most recently today but has happened in previous days.

The incident first happend (and has been happening ever since) on I-8, I-10, I-20 east bound 2 days ago. Driving on EB I-8 with speed limits 75MPH, engaged Tesla's well touted onboard Enhanced Auto Pilot (EAP) with Auto Steer control. There was no one ahead of us for over a mile. The weather was clear and sunny, time of incident around noon. Max speed was set to 75 on EAP. All of a sudden, we felt a jerky motion, and realized the EAP has activated brakes, dropping speed from set 75 to about 50mph. No visual or audible alarms, the EAP did not disengage. The driver took over to speed up to avoid being rear ended by vehicles coming behind us. It happened several times more during our trip and then we decided to manually drive. We have video documentation available.

The incident first happend (and has been happening ever since) on I-8, I-10, I-20 east bound 2 days ago. Driving on EB I-8 with speed limits 75MPH, engaged Tesla's well touted onboard Enhanced Auto Pilot (EAP) with Auto Steer control. There was no one ahead of us for over a mile. The weather was clear and sunny, time of incident around noon. Max speed was set to 75 on EAP. All of a sudden, we felt a jerky motion, and realized the EAP has activated brakes, dropping speed from set 75 to about 50mph. No visual or audible alarms, the EAP did not disengage. The driver took over to speed up to avoid being rear ended by vehicles coming behind us. It happened several times more during our trip and then we decided to manually drive. We have video documentation available.

On May 22, 2023 driving south on I-580 through Reno with the Tesla adaptive cruise control, there's a 55mph construction zone. As a result, I use the right scroll wheel to adjust the speed from 65 to 55mph. The scroll wheel didn't work. As a result, I turned off the cruise control with the right steering wheel stalk. At the same time, I noticed the vehicle speed indicator on the upper left of the CRT display was malfunctioning; both failing to respond to changes in the car's speed, and then indicating erroneous speeds (at one point indicating 34mph when I was going around 60mph. These issues continued. I took the exit on Double R Blvd to turn right. As I got into the right lane on the freeway to exit I attempted to turn off the cruise control and it didn't work. Approaching the exit, I then applied the brake. The regenerative braking function did not apply. As a result, it felt like the cruise control didn't turn off. However, I braked to a stop at the intersection in the right lane with no issues. When the traffic cleared, I attempted to turn right and proceed east on Double R Blvd. The car didn't move. Using the right stalk, I tried shifting into drive, reverse, and back. All this time, the drive (D) and reverse (R) indications on the CRT did not show. I let off the brake and the car inched forward. I turned right immediately into the Maverick gas station entrance to get off RR. The CRT display now showed the back-up camera displays (a normal indication of the car being in reverse). I cautiously let off the brake and applied the accelerator pedal to see if I backed up, but the car was in drive and proceeded normally. I continued to drive and the CRT screen went completely black. I soon realized the car's computer was rebooting with the faint Tesla logo on the black screen. Within a mile or so, everything came back on the screen and worked normally. I then reached my destination. When I returned to the car, it was as if nothing had happened.

Was using cruise control on a road trip, traveling through Arizona and the car jolted to stop three different times without advance notice or anything in the road. It was like slamming on the brakes. I was afraid to use it anymore, so now it’s like having a vehicle without cruise control feature. There were cars all around. We are fortunate no one hit us. This needs to be addressed. Googled and discovered it is called “phantom braking.” Hoping this serious safety issue will be fixed and no one gets hurt or dies because of it. Thank you

Using cruise control or auto pilot and then the car randomly brakes.

The contact owns a 2021 Tesla Model 3. The contact stated that while driving at 70 - 75 MPH with the cruise control activated, the vehicle experienced phantom braking. No warning lights were illuminated. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 31,043.

Mileage: 31,043

The contact owns a 2021 Tesla Model 3. The contact stated that while driving at 70 - 75 MPH with the cruise control activated, the vehicle experienced phantom braking. No warning lights were illuminated. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 31,043.

Mileage: 31,043

While using the autopilot or cruise control feature The vehicle slams on the brakes without driver intervention. I found this appears to be a common problem called “ Phantom Braking” I opened ticket with the local Tesla facility but they required an accurate time storm of the incident to be able to troubleshoot the issue. This is a major safety issue and I request it be investigated as soon as possible. I read some news reports that Tesla Phantom Braking has caused major accidents and I don’t want to be in one.

While using the autopilot or cruise control feature The vehicle slams on the brakes without driver intervention. I found this appears to be a common problem called “ Phantom Braking” I opened ticket with the local Tesla facility but they required an accurate time storm of the incident to be able to troubleshoot the issue. This is a major safety issue and I request it be investigated as soon as possible. I read some news reports that Tesla Phantom Braking has caused major accidents and I don’t want to be in one.

While on Autopilot, the car suddenly phantom brakes when there is no risk of any collision ahead. This has happened multiple times on high speed highways. Within 1 hour, this happened 5 times and caused near-collisions with the car following my car.

My full self driving computer has crashed for the 3rd time since owning the vehicle which controls all of the cars safety features.. Tesla says they won’t do anything because the car is past the warranty by 9,000 miles.. so I’m basically stuck with a 1980’s Tesla.

My full self driving computer has crashed for the 3rd time since owning the vehicle which controls all of the cars safety features.. Tesla says they won’t do anything because the car is past the warranty by 9,000 miles.. so I’m basically stuck with a 1980’s Tesla.

My full self driving computer has crashed for the 3rd time since owning the vehicle which controls all of the cars safety features.. Tesla says they won’t do anything because the car is past the warranty by 9,000 miles.. so I’m basically stuck with a 1980’s Tesla.

During the time we have owned this car, it exhibits random and sudden deceleration events when operating AutoPilot (adaptive cruise control) on highways and freeways. The events are not explainable by presence of any notable present or potential hazard. The risk presented to and by surrounding (following) vehicles is so significant that it renders this function unusable. Saturday, April 1, was the last time this occurred before we decided we could no longer safely use this function, instead going to full manual control of the throttle and brake for all highway driving.

there were 2 phantom braking incidents today traveling between pasadena and berkeley onhighway 5. it was getting cloudy. the first incident occurred just after i passed under an overpass, and thought it might have been due to the lighting. the braking was mild . there were other cars passing me on the left. i had the cruise control set to around 74mph. i probably slowed to 65mph the second phantom braking incident was about an hour later, and it was HARD. fortunately the cars behind me were far enough away. the cruise control was also set around 74mph. interestingly, no audio alerts were issued with either incident. normally, when driving without cruise control, the car will issue audio alerts (loud, urgent beeping) if a car gets too close. in both of my cases, there were no cars in front of me as i was in the slow lane.

there were 2 phantom braking incidents today traveling between pasadena and berkeley onhighway 5. it was getting cloudy. the first incident occurred just after i passed under an overpass, and thought it might have been due to the lighting. the braking was mild . there were other cars passing me on the left. i had the cruise control set to around 74mph. i probably slowed to 65mph the second phantom braking incident was about an hour later, and it was HARD. fortunately the cars behind me were far enough away. the cruise control was also set around 74mph. interestingly, no audio alerts were issued with either incident. normally, when driving without cruise control, the car will issue audio alerts (loud, urgent beeping) if a car gets too close. in both of my cases, there were no cars in front of me as i was in the slow lane.

The car will apply the brakes suddenly when in control when there is no obstacle to be avoided.

When driving on the highway on autopilot (not full self driving or enhanced auto pilot), the vehicle will experience “phantom braking” where it will suddenly brake with full regenerative braking force without any perceivable reason/cause. I have noticed this event occurs every time at the same location as it is on my commute to work. I’ll be on the highway with my speed set to around the speed limit of 65mph in autopilot mode, and when approaching the merge of a specific on-ramp, the car’s set speed will suddenly change from 65 to 55 and then the full power of regenerative braking is applied until I manually disengage them. There can be no vehicles around me or any logical reason for it to brake, and it will do so anyways. This is a safety concern as a vehicle following behind me may not anticipate a random and hard braking event for no apparent reason or cause to do so. The car acts if the speed limit decreases, which it doesn’t, and then its reaction is to brake very very hard and abruptly. If I don’t manually disengage the brakes, I’m not sure if it would come to a complete stop on the highway or just brake until a certain speed is reached. This phantom braking event has occurred in other areas as well, but I have noticed it always happens at this one specific location every day. There are no speed limit signs/changes in the area.

My model 3 on crusing speeds on high ways, automatically applies brakes and makes sudden,abrupt, jolted slowing down which causes extreme pressure on persons body

My model 3 on crusing speeds on high ways, automatically applies brakes and makes sudden,abrupt, jolted slowing down which causes extreme pressure on persons body

The car suddenly braked hard when there were no obstacles or other reason. If someone was behind me I would have been hit.

Car put on brakes unexpectedly during use of adaptive cruise control (autopilot). This phantom braking happens often at highway speed. Bug reports have been sent from vehicle to Tesla

While driving on the interstate I was using Autopilot (cruise control). I started into a slight curve when the vehicle suddenly emergency braked. The roadway was clear and thankfully no vehicle was following close behind me. Also there was no warning alarms, just a sudden, aggressive braking. This has happened several times before but the first time with no alarms beforehand.

My operating my Model 3 in autopilot mode, there is one particular location that my car "phantom brakes" every time I pass. I travel this location an average of 4 times per week. I have been reporting the phantom braking to Tesla for almost two (2) years and they still have not fixed the problem. They claim the car is doing what it is supposed to do. The phantom braking occurs on a divided highway on an overpass that passes over a highway with a lower speed limit ( 37° 4'54.40"N 94°18'48.09"W). It only occurs in the east bound direction. Tesla says their mapping information is provided by Google and until Google updates or corrects their mapping data, the problem will persist. On a day with no traffic behind me, I did not intervene and allowed the car to brake as it saw fit. I went from 70mph to 40mph all while in a 70mph zone. As I have mentioned, I have been telling Tesla about this since March of 2021 yet it is not resolved.

I was driving with the Autopilot on, traveling about 65 mph on the freeway when the automatic emergency braking system kicked in for no reason. There was absolutely nothing in front of the car when it aggressively braked, very suddenly. I was very lucky no one was behind me. I have not reported this directly to Tesla, no one has inspected or confirmed this event.

I was driving Tesla on the freeway using adaptive cruise control at 65 miles per hour and the car suddenly brake and the sped jumped from 65 to 20 in seconds. It was scary. There was no one in front of nothing in the road to cause that to happen. It did say on the screen something about visibility. I had to take control of the car after. It has happened several times before. When I spoke with Tesla they said it’s a safety feature and it only happens when you pass certain cities. I find that hardly true

This incident happened last summer, 2022 but I recently read that it is happening to many other people and thought I should report it. I was driving on Hwy 71 south in the Cincinnati area with the ADAS with the cruise control and auto steering in operation. All of a sudden the brakes slammed on with me not doing anything to cause it. There were no cars behind me and I touched and released the brake pedal and it went back to a normal driving mode. I don’t believe I hit a pothole or bump on the highway. I did not report it to Tesla.

This incident happened last summer, 2022 but I recently read that it is happening to many other people and thought I should report it. I was driving on Hwy 71 south in the Cincinnati area with the ADAS with the cruise control and auto steering in operation. All of a sudden the brakes slammed on with me not doing anything to cause it. There were no cars behind me and I touched and released the brake pedal and it went back to a normal driving mode. I don’t believe I hit a pothole or bump on the highway. I did not report it to Tesla.

Tesla software release 2022.44.25 My Tesla autopilot continues to exhibit phantom braking while in traffic aware cruise control and autopilot. The vehicle will suddenly slow down either gently or harshly. This behavior was observed after Tesla released software that disabled the cars radar. Since then, multiple updates have remedied the issue but 2022.44.25 has introduced phantom braking again. No accidents have occurred but luckily I live in a remote area of Arizona and can take control of the car as it phantom brakes. After Tesla working in autopilot for years, I think it’s time for additional validation to start happening on autopilot and traffic aware cruise control. I’m also of the belief that normal cruise control should be banned. Thanks!

While using the base level of "autopilot," remaining in a lane and maintaining speed, the car will randomly slam on the brakes even when there are no vehicles or objects in front of it. The first incident occurred while driving late at night on an interstate. There were no vehicles in front of the car, but it rapidly reduced speed from 75mph to 30mph, before immediately speeding up again. The camera based "autopilot" is essentially useless and I have decided not to use it when driving.

While using the base level of "autopilot," remaining in a lane and maintaining speed, the car will randomly slam on the brakes even when there are no vehicles or objects in front of it. The first incident occurred while driving late at night on an interstate. There were no vehicles in front of the car, but it rapidly reduced speed from 75mph to 30mph, before immediately speeding up again. The camera based "autopilot" is essentially useless and I have decided not to use it when driving.

While using the base level of "autopilot," remaining in a lane and maintaining speed, the car will randomly slam on the brakes even when there are no vehicles or objects in front of it. The first incident occurred while driving late at night on an interstate. There were no vehicles in front of the car, but it rapidly reduced speed from 75mph to 30mph, before immediately speeding up again. The camera based "autopilot" is essentially useless and I have decided not to use it when driving.

Twice in October 2022 (18th and 20th), my vehicle decelerated suddenly during cruise control with no impediments in the road (i.e., phantom breaking). The breaking on the 20th was akin to slamming on the breaks, and both occurred at freeway speeds. I did *not purchase Tesla's self-driving feature. The vehicle also on the 18th tried to steer around an object that did not exist in the road while I turned onto a freeway on-ramp. I reported all three incidents at that time to Tesla for servicing of the vehicle. It is unknown whether any "repair" was actually done to eliminate phantom breaking (I no longer use Tesla's cruise control in similar traffic conditions which were at the time crowded outside of the carpool lane I was using).

On 1-14-2023, while driving westbound on I-64, around sunset (5:20ish pm) in a straight portion of the highway, the vehicle suddenly braked for no reason. There was nothing in the road and no cross traffic. There was an all white semi in the right lane that I was approaching in the passing lane. I immediately disengaged the cruise and continued my trip with no further incidents.

The only cruise control feature available on this car is the adaptive cruise control. This car continues to make sudden unsafe braking maneuvers for no reason. It seems to get confused by steep hills, bridges, shadows, and other factors. You can be on a highway going 70mph and it will slam the brakes, terrifying passengers and potentially causing you to get rear ended. This has been ongoing since the purchase of the car 1 year ago.

While driving on an otherwise unobstructed road, with no nearby obstacles on a Rural South Dakota Interstate, the vehicle suddenly slammed on breaks in an unsafe fashion, forcing the vehicle behind us to swerve to evade our car. We were told by Tesla service that sometimes, "road shimmering" can cause this behavior, and there is no remedy available. In response to this, I gunned the accelerator to try and remedy the issue, hitting unsafe speeds before being able to fully return control to the vehicle. This was NOT while using the vehicle's autopilot system for FSD (which was available on the car), but adaptive cruise control, though the same issue happens with FSD regularly. This is not the first instance of this happening (I have stopped using cruise control and FSD on the vehicle since), but the first time it seriously endangered myself and another driver.

While driving on an otherwise unobstructed road, with no nearby obstacles on a Rural South Dakota Interstate, the vehicle suddenly slammed on breaks in an unsafe fashion, forcing the vehicle behind us to swerve to evade our car. We were told by Tesla service that sometimes, "road shimmering" can cause this behavior, and there is no remedy available. In response to this, I gunned the accelerator to try and remedy the issue, hitting unsafe speeds before being able to fully return control to the vehicle. This was NOT while using the vehicle's autopilot system for FSD (which was available on the car), but adaptive cruise control, though the same issue happens with FSD regularly. This is not the first instance of this happening (I have stopped using cruise control and FSD on the vehicle since), but the first time it seriously endangered myself and another driver.

Trip from Piedmont, California to Salt Lake City, Utah, I experienced three (x3) phantom breaking incidents at over 80 mph on interstate 1-80. The car without warning dramatically de-accelerated from approximately 85mph to 65mph or 60mph without warning and suddenly. Dog was riding in back and thrown into front dashboard on one occasion. Visited Tesla dealership on State St in Salt Lake City Utah upon destination arrival and manager/head at front desk laughed indicents off saying, "we've heard of such incidents just wait for the software update." Horrible. Beyond dangerous. I can report that in all three incidents there were no cars in front or behind me and the phenonenon occurred totally unexpectedly. Reported it also to Tesla repair shop in Berkeley, California, and intake group had zero sympathy and said, "it's a known software glitch."

On multiple occasions, the car will suddenly decelerate while using adaptive cruise control on the highway. Malfunctioning component: adaptive cruise control. Safety: rear end collision if another vehicle was following too closely. Manufacturer is fully aware of the problem.

I was going 80mph on the interstate coming back from Little Rock to Tulsa. The time was 4am in the morning with little or no traffic on the road. I was using only the cruise control with adaption turned on. The car all of a sudden without any warning almost came to a complete stop on the interstate. I later asked what caused this and was told it is phatom braking but this was VERY dangerous, if someone had been behind me they probably would have been messed up. I merely accelerated to make sure I was at least keeping the minimum speed limit. Please advise. Shawn

Adding our vehicle to the list of those affected by what seems to be commonly known as "Phantom Braking". The most recent occurrence was on Interstate 25 southbound in northern Colorado when the "Autopilot" (Adaptive Cruise Control) suddenly braked and reduced our speed from 75 to 51 mph, with no vehicles or other obstructions visible. We were almost rear-ended by a car following us, however. I want to point out that this was only the worst example of several episodes that occurred that day, and on earlier dates as well. We no longer use Autopilot, which makes long trips much less comfortable. I also want to mention that our vehicle does NOT have Tesla's "Full Self Driving" (FSD) installed, so my hands were on the wheel at all times.

On certain sections of highway unsuccessfully attempted to activate auto-steer (two down clicks) multiple times in a row. Did this multiple times in a row but was unsuccessful to activate auto-steer. Instead a supposed "easter egg" (which activates with 4 down clicks) very loudly plays loud jarring music (called "rainbow road")...this is NOT FUCKING FUNNY--I nearly ran my car off the road and into oncoming traffic. Giant 2000 pound hunks of metal going at 60 mph should NOT FUCKING COME with special surprises. This is incredibly dangerous and jarring to drivers.

The contact owns a 2021 Tesla Model 3. The contact received notification of NHTSA Campaign Number: 22V235000 (Electrical System, Forward Collison Avoidance) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. Parts distribution disconnect.

Random "phantom braking" while using autopilot or cruise control. Causes the car to slam on brakes and has lost control once almost causing me to go off the road. Also, has brake-checked many cars that follow behind me while I'm using autopilot or cruise due to the phantom braking. Also Tesla Repair center in Chicago replaced my front bumper with a discolored front bumper that had the same issue of peeling on the inner edges of the bumper as the prior front bumper. When I brought up the issue to Tesla they said that was a manufacturing process issue due to the molding process of the bumpers and that is how they all are. If that is the case why change the bumper? Could have just told me that's how all the cars are and saved a lot of my time. Also, have had many repairs from Tesla that don't seem to end. These cars arent being produced in a consistent manner. What was promised during the purchase of the car doesn't seem to hold up.

The contact owns a 2021 Tesla Model 3. The contact stated that while driving at various speeds, the vehicle experienced phantom braking. The contact stated that the adaptive cruise control was activated during the failure. The failure recurred several times. The vehicle had not been taken to the dealer to be diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 14,169.

Mileage: 14,169

While using cruise control on a cross country drive, there have been numerous instances of phantom braking in my Tesla Model 3 SR+ (2021). This has been occurring during both day and night driving on the highway, at speeds of 65-75mph. It appears to happen most frequently when there’s a slight up-hill on the highway followed by a slight downhill and then phantom brake, but there have been instances on flat highway road at night with phantom braking taking place.

While using cruise control on a cross country drive, there have been numerous instances of phantom braking in my Tesla Model 3 SR+ (2021). This has been occurring during both day and night driving on the highway, at speeds of 65-75mph. It appears to happen most frequently when there’s a slight up-hill on the highway followed by a slight downhill and then phantom brake, but there have been instances on flat highway road at night with phantom braking taking place.

I have had the car for about 1.5 years. In the last week it has started to have phantom braking where on a clear, flat road with no traffic, it suddenly has hard braking and slows from about 65 mph down to 40-50 mph. This has occurred when operating on Autopilot with the cruise control and autosteer on. There is a risk of a rear collision with this sudden braking. There was no warning. I do not have Full Self Driving.

I have had the car for about 1.5 years. In the last week it has started to have phantom braking where on a clear, flat road with no traffic, it suddenly has hard braking and slows from about 65 mph down to 40-50 mph. This has occurred when operating on Autopilot with the cruise control and autosteer on. There is a risk of a rear collision with this sudden braking. There was no warning. I do not have Full Self Driving.

Model 3 sudden Max speed reduction (60/55 to 25/30) when using Autopilot. This happens every time and in multiple areas when driving on I-4 through Orlando, FL.

Driving in empty highway, no cars in front of me for great distances, on cruise control, the car would all of sudden perform hard braking. It happened many times in the course of two 6 hour drives over a weekend and I couldn't figure out what scenarios were predisposing to this. I also tried out autosteer (not autopilot) and it did it in autosteer too. It was very hard braking, not just disengaging, and so I just drove without cruise control because it is too dangerous and risks getting rear-ended because I am braking without warning and for no reason.

The Tesla uses “auto high beam” when in autopilot. The pros of this can allow drivers to utilize the light so the cameras can detect anything to avoid any possible wrecks, but it does not have an option to be turned off. Along with other people online, my brights have flashed at people on the interstate and highways or haven’t turned off at all. This is irritating and limits the way I am comfortable with using autopilot. Please inform Tesla to make the auto high beam feature OPTIONAL.

I was on a road trip on rural highways in Texas and New Mexico. The adaptive cruise control/autopilot system repeatedly hit the brakes when driving at highway speeds for no apparent reason. This would happen even though there were no cars in front of me or other obstructions in the roadway. If there had been another car behind me there would have been risk of a rear end collision because the car would unexpectedly significantly reduce speed. A few times when this happened, the car made warning sounds, but most of the time it would not provide any warning at all. I have tried making a service request with the manufacturer, but they claim that there are no hardware problems with the car and I have to wait for a firmware update.

I was on a road trip on rural highways in Texas and New Mexico. The adaptive cruise control/autopilot system repeatedly hit the brakes when driving at highway speeds for no apparent reason. This would happen even though there were no cars in front of me or other obstructions in the roadway. If there had been another car behind me there would have been risk of a rear end collision because the car would unexpectedly significantly reduce speed. A few times when this happened, the car made warning sounds, but most of the time it would not provide any warning at all. I have tried making a service request with the manufacturer, but they claim that there are no hardware problems with the car and I have to wait for a firmware update.

During a road trip from Oklahoma to California and back my Model 3 suddenly and abruptly braked coming almost to a stop on up highway while cruise control was engaged. The braking was such that it caused occupants to lunge forward and seatbelts pretension. This aggressive braking is a common occurrence with Tesla and has been called “phantom braking”. This is not the first time this has happened to me. This is a recurring issue

During a road trip from Oklahoma to California and back my Model 3 suddenly and abruptly braked coming almost to a stop on up highway while cruise control was engaged. The braking was such that it caused occupants to lunge forward and seatbelts pretension. This aggressive braking is a common occurrence with Tesla and has been called “phantom braking”. This is not the first time this has happened to me. This is a recurring issue

The contact owns a 2021 Tesla Model 3. The contact stated while driving 70 MPH up a hill, the vehicle made a sudden stop without any warning, causing the contact and his wife go forward in their seats. The contact accelerated and the vehicle continued to operate normally. The vehicle was not diagnosed. The dealer was not contacted. The manufacturer was contacted and stated that the computer needed to be checked. The failure mileage was 4,100.

Mileage: 4,100

In vehicle speaker system occasionally resets, keeping speakers from making noise during a 5-10 second window. This keeps in-vehicle chimes and collision warnings from sounding at appropriate volumes.

The contact owns a 2021 Tesla Model 3. The contact stated while driving 80 MPH with the cruise control activated, the vehicle inadvertently decelerated to 20 MPH and experienced phantom braking. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 15,000.

Mileage: 15,000

The contact owns a 2021 Tesla Model 3. The contact stated while driving 80 MPH with the cruise control activated, the vehicle inadvertently decelerated to 20 MPH and experienced phantom braking. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 15,000.

Mileage: 15,000

Traveling between Colorado and Missouri, multiple instances of "phantom braking" where, without warning, the car would brake suddenly and very sharply, such that the tires would squeal and items in the back seat slid onto the floor. There were no obstacles, the weather was clear and there was no reason for it to do so. We were only using the cruise control and not the self driving program. Our safety was put at risk because had a car or truck been behind us, a severe rear end collision could have occurred. We were traveling at highway speeds at the time this occurred. We requested a service appointment but Tesla told us this could not be addressed in a service appointment. Tesla said this would be addressed in future updates. We told Tesla this was unsatisfactory and dangerous. We wanted the car inspected and the problem addressed but Tesla said the service appointment could not do anything. There were no warning lamps, messages or other symptoms before the failure. In fact the braking did not even disengage the cruise control, which normally is the case when the brake is applied. This had occurred previously and Tesla said it would be fixed with a computer update in July 2022. Obviously it has not been fixed.

Traveling between Colorado and Missouri, multiple instances of "phantom braking" where, without warning, the car would brake suddenly and very sharply, such that the tires would squeal and items in the back seat slid onto the floor. There were no obstacles, the weather was clear and there was no reason for it to do so. We were only using the cruise control and not the self driving program. Our safety was put at risk because had a car or truck been behind us, a severe rear end collision could have occurred. We were traveling at highway speeds at the time this occurred. We requested a service appointment but Tesla told us this could not be addressed in a service appointment. Tesla said this would be addressed in future updates. We told Tesla this was unsatisfactory and dangerous. We wanted the car inspected and the problem addressed but Tesla said the service appointment could not do anything. There were no warning lamps, messages or other symptoms before the failure. In fact the braking did not even disengage the cruise control, which normally is the case when the brake is applied. This had occurred previously and Tesla said it would be fixed with a computer update in July 2022. Obviously it has not been fixed.

On numerous occasions since I bought the Tesla in March 2021, the car will phantom brake when using cruise control and sometimes on it's own. This happens randomly with no warning and is very dangerous as it risks my car getting rear ended. This is an ongoing problem as you know but Tesla did nothing when I reported it and is still not doing anything. NOT GOOD.

On numerous occasions since I bought the Tesla in March 2021, the car will phantom brake when using cruise control and sometimes on it's own. This happens randomly with no warning and is very dangerous as it risks my car getting rear ended. This is an ongoing problem as you know but Tesla did nothing when I reported it and is still not doing anything. NOT GOOD.

Since owning this car in January 2022, there have been issues of phantom braking during cruise control or autopilot. However, today 10/6/22 during an hour and a half time frame my car has had phantom braking episodes at least 5 times in the middle of the highway where it's speed suddenly drops by 20mph.

Driving with cruise control on following another vehicle 150 yards in front of me. I'm not even using Auto-Pilot because on how dangerous and unpredictable it is. I'm using Normal Cruise Control, which is also a disaster. A car built in 80s can perform cruise control without any hassle. It phantom braked and the vehicle behind me had to take corrective action. This has to be addressed to be fixed. Ditching radar for "vision" was a huge mistake that puts mine and many other lives in danger. A simple cruise control feature that every car is equipped with shouldn't be a death sentence waiting to happen.

We have experienced numerous occasions of phantom braking, or sudden breaking while using the adaptive cruise control. The dealer could not find and mechanical or software problem although the issue persists. This is unsafe because the vehicles breaks suddenly and aggressively from speed without warning and when no breaking action is needed. I fear being rear ended by a following vehicle and have been reluctant to use cruise control. Warnings appear intermittently regarding camera visibility and needing cleaning the cameras have been clear when this warning appeared.

Complaint: Phantom Braking -- My wife and I took ownership of our 2021 Tesla Model 3 at the beginning of July 2021. We experienced what is referred to as Phantom Braking (Car initiating sudden braking while at highway speeds). We took it on a 3,000+ mile road trip to visit national parks in the western United States. Having owned electric vehicles since 2015, we found Tesla's charging network to be reliable and hassle-free to operate. On a few long stretches of road in Nevada, Wyoming, and Utah we engaged model 3's adaptive cruise control. Three times during that trip, between July 2nd and July 8th, 2021, the car braked hard, without warning, while traveling at highway speeds. From what we could determine, shadows cast on the road at the approaching side of gentle hills, with the sun in front of us, may have been interpreted by the car's camera's as an approaching or stationary object on the road. This was very unnerving and caused us to lose faith in the adaptive cruise control system. This was both disappointing and a bother since it meant that we were driving a 50 thousand dollar car without cruise control, making driving a more tiresome experience. This past labor day weekend, 2022, we drove to Las Vegas on the same Tesla model 3 and again activated the adaptive cruise control while driving in Nevada. We thought that by now the periodic software updates would have fixed the problem. This time the Phantom Braking occurred more frequently and on seemingly level sections of road. After about four attempts at using the adaptive cruise control we stopped. This was, again, disappointing that we were driving a car whose adaptive cruise control failed to perform as it was designed to. We were disappointed because for what we paid for the car, this feature should be more mature than it is. Luckily we did not have other cars close behind us at the times the car's computer together with the sensors and / or cameras decided it needed to apply the brakes.

Tesla allows owners to enroll as FSD beta testers however, the owner cannot unenroll when they request. The FSD beta is extremely dangerous and makes the use of even ACC impossible to use. I have requested to leave the beta via emailing [email protected], which an automatic response is received stating to unenroll respond to that email with your VIN and they will process the request. However, they do not process the request; I have sent dozens of email requests with no response and am still stuck in the beta software queue. I have attempted to submit service requests but the app recognizes the verbiage and blocks the submissions, stating to send the email instead. There is no other method to contact Tesla.

Pillar cameras constantly complain blocked or blinded. Services refused to even look into the issue blaming glare from the sun, even when happening to both on opposite sides of the car at the same time. Report it even happens at night I am told it might be too dark for the camera. Did not occur like this on my 2019 Tesla Model 3. This seems to be causing random unexpected lane departure alerts or failures in lane keeping on cruise control or with lane assist. Message are extremely frequent and distracting. Message placement is blocked by arm while holding the steering wheel requiring me to take my eyes off the road to read. Been complaining about this for months, one of the two cameras (drivers side) was replaced which improved the issues with that side complaining but passenger side complains extremely often. Drivers side issue not 100% resolved but improved after replacement, possible cabling or MCU/ECU issue. Instead of looking at the issue Tesla insists the cameras must be dirty, moisture, too bright, too dark, etc. And fails to even examine components. Recent appointment canceled by Tesla after the scheduled date and time without notice. Camera doesn't appear to detect or recognize people or objects in that cameras visions creating what appears to be a blind spot when viewing in vehicle display. Have repeatedly seen person walking around my car will disappear from the screen around the passenger front quarter but reappear when in front of the vehicle or by the rear quarter.

Unexplained sudden braking while using adaptive cruise control. Almost got rear-ended as a result.

Unexplained sudden braking while using adaptive cruise control. Almost got rear-ended as a result.

Unexpected phantom braking occurring randomly but on multiple occasions during a 2000 mile multi day trip. Several incidents of a hiccup resulting on a jolt but at least three incidents of rapid and sudden deceleration without an observed corresponding hazard. Occurred a couple times while cresting a hill on single and multi lane roads. One severe incident occurred while passing a semi truck on a multiple lane highway. Causes high anxiety and potential for a crash, especially from behind. This has not been inspected by Tesla or others but note many reports of this online. No warning prior to event but cruise control did not work properly after event and required reseting.

Cruise control (Autopilot) phantom braking events have gotten very bad. About once every few miles on an empty 2 lane highway the car slams on the brakes. I’ve made numerous bug reports over the years and if anything it’s gotten worse. It seems to have gotten worse with the software update a few days ago (v11.0 2022.24.6 40a0d11b18af).

Cruise control (Autopilot) phantom braking events have gotten very bad. About once every few miles on an empty 2 lane highway the car slams on the brakes. I’ve made numerous bug reports over the years and if anything it’s gotten worse. It seems to have gotten worse with the software update a few days ago (v11.0 2022.24.6 40a0d11b18af).

I was driving in Oklahoma on a straight interstate highway at 75 mph using cruise control (not autopilot) and experience a sudden application of full brakes. The application was so sudden the tires "chipped" and decelerated to below 45 mph before I could take control by applying throttle. On the same trip, I was near Midland, Texas and experience another serious phantom braking on a clear straight highway. By this time I experienced 10 additional minor braking issues. On my return trip, I did not use cruise control or autopilot and didn't have a single incident. I reported the incident to Tesla Service and reported ever incident via the feedback button (when it worked). I'm a retired Boeing engineer experienced in flight controls, fly-by-wire control, and aircraft subsystem design. I have no confidence in this design.

I was driving in Oklahoma on a straight interstate highway at 75 mph using cruise control (not autopilot) and experience a sudden application of full brakes. The application was so sudden the tires "chipped" and decelerated to below 45 mph before I could take control by applying throttle. On the same trip, I was near Midland, Texas and experience another serious phantom braking on a clear straight highway. By this time I experienced 10 additional minor braking issues. On my return trip, I did not use cruise control or autopilot and didn't have a single incident. I reported the incident to Tesla Service and reported ever incident via the feedback button (when it worked). I'm a retired Boeing engineer experienced in flight controls, fly-by-wire control, and aircraft subsystem design. I have no confidence in this design.

I was driving in Oklahoma on a straight interstate highway at 75 mph using cruise control (not autopilot) and experience a sudden application of full brakes. The application was so sudden the tires "chipped" and decelerated to below 45 mph before I could take control by applying throttle. On the same trip, I was near Midland, Texas and experience another serious phantom braking on a clear straight highway. By this time I experienced 10 additional minor braking issues. On my return trip, I did not use cruise control or autopilot and didn't have a single incident. I reported the incident to Tesla Service and reported ever incident via the feedback button (when it worked). I'm a retired Boeing engineer experienced in flight controls, fly-by-wire control, and aircraft subsystem design. I have no confidence in this design.

On an empty freeway I5 southbound over a crest, the car emergency braked from highway speed with no obstacles or cars in front of it. The weather conditions were sunny, 98f, and some mirages were on the road surface. Autopilot was engaged and set to the speed limit. Emergency braking alert sounded and the car applied full power braking. Car is running software version 2022.24.6. prior versions of the software with radar support did not exhibit this phantom breaking behavior. The current version disabled radar and used "Tesla vision"

On an empty freeway I5 southbound over a crest, the car emergency braked from highway speed with no obstacles or cars in front of it. The weather conditions were sunny, 98f, and some mirages were on the road surface. Autopilot was engaged and set to the speed limit. Emergency braking alert sounded and the car applied full power braking. Car is running software version 2022.24.6. prior versions of the software with radar support did not exhibit this phantom breaking behavior. The current version disabled radar and used "Tesla vision"

On an empty freeway I5 southbound over a crest, the car emergency braked from highway speed with no obstacles or cars in front of it. The weather conditions were sunny, 98f, and some mirages were on the road surface. Autopilot was engaged and set to the speed limit. Emergency braking alert sounded and the car applied full power braking. Car is running software version 2022.24.6. prior versions of the software with radar support did not exhibit this phantom breaking behavior. The current version disabled radar and used "Tesla vision"

While using my Tesla's Full Self Driving (FSD) feature (Navigate on Autopilot) on a recent road trip through West Texas, the vehicle, on multiple occasions, would automatically brake while cruising at speeds of 80 mph (speed limit was 75 mph), which consequently dropped the vehicle's speed over 20 mph within seconds. The result was being forcibly slammed forward with such a jarring, unexpected force that would have easily slammed me as the driver and my front seat passenger into the wind shield if we were not wearing our seatbelts. This happened multiple times on the trip. The only way to recover was to depress the accelerator and forcefully hold on to the steering wheel until the braking system released and control was returned to the driver. If this had occurred on a crowded highway rather than on the open spaces of the West Texas interstate system, I am convinced there would have been a rear impact collision. This "phantom breaking" as Tesla claims, is a serious issue that will no doubt lead to fatalities if not corrected. This issue manifested without warning and with no alerting. The issue can be easily reproduced and the component has yet to be inspected by any 3rd party. I fear people will die because of this issue until it is resolved. Thanks, Sean Merino

Was driving about 35-40mph on city street when car abruptly applied emergency braking. Car automatically slammed on brakes (screeching) and came to complete stop. This action was dangerous because it could have caused an accident if another car was behind me. Caused fear and panic as I believed something or someone had hit my vehicle, it also scared a pedestrian that was walking along the sidewalk. The sudden braking also caused my body to violently jerk forward and backwards. This has not been reproduced or confirmed by dealership or service center. It has not yet been inspected by anyone. I have made an appointment for car to get inspected, appointment is 9/16. No warning lights or symptoms came on prior to this incident.

The adaptive cruise control (Tesla "autopilot") system has unexpectedly disengaged and applied light to heavy braking numerous times. The system frequently mistakes a particular highway sign for a stopped vehicle and applies moderate braking. The system has also applied light to heavy braking in circumstances where I simply cannot figure out what the camera is interpreting as a hazard. This puts me and other drivers around me at risk as it is unnecessary and unpredictable braking at highway speeds in traffic. Tesla has not been able to remedy this problem and I do not consider the cruise control system to be safe to use. This has happened more than 10 times.

I was driving SB on N Gate Rd in Vacaville, approaching the gate for Travis AFB. There was traffic backed up at the gate and I put the car into Autopilot to negotiate the stop and go traffic. I had been in Autopilot for maybe 50 yards when the car suddenly accelerated on it's own and veered to the right. The brakes would not work to stop the car and the steering wheel would physically turn but it wasn't changing the direction of the car. The car veered off the road to the right and into a utility pole.

Driving in autopilot during daylight hours (8:30am) about 70mph the vehicle suddenly braked long and hard, tires screeched when there was nothing around me or in the road. It could have caused a serious accident if anyone was behind me.

Driving in autopilot during daylight hours (8:30am) about 70mph the vehicle suddenly braked long and hard, tires screeched when there was nothing around me or in the road. It could have caused a serious accident if anyone was behind me.

When car was engaged in Autopilot the barking system was activated without warning or cause. The vehicle slowed rapidly and sudden. Had to disengage Autopilot to get vehicle back to safe driving speed. No others vehicles where in front or behind me and no obstructions were in the path of vehicle.

While driving with the Autopilot system engaged at 55 MPH, on a clear, sunny day, the vehicle applied the brakes and rapidly decelerated to 40 MPH before I could press the accelerator pedal to restore my set speed. There were no objects of any kind on the road. No hills or curves were involved. I was fortunate that no vehicle was closely following me or they might have run into me due to my unexpected and unnecessary brake application.

My Tesla will repeated and randomly brake strongly. This happens on regular streets and on the highway at speed. It’s not like slamming on the brakes with the wheels screeching. But a quick and strong deceleration and then it lets go. There has never been anything in front of me when this happens.

This is a complaint about Tesla using unqualified drivers to test Atopilot Beta on the public roads. Please note that the VIN of a random Model 3 Tesla has been used to enable this submission to be completed. Here is a video of a driver testing Autopilot on what is in his own words the most dangerous road in Virginia. https://www.youtube.com/watch?v=7VBhdrj1CqM He is driving hands free around sharp bends and against oncoming traffic entirely hands free but just giving the wheel a little nudge with his finger every 30 seconds to defeat the nag. At one point the car does swerve towards an oncoming car but corrects itself just in time. The driver is alert and monitoring the situation but because he does not have his hands on the wheel he is playing russian roulette with many lives. Please do not allow this madness to continue for one day longer. Elon Musk thinks this is all a joke which is why he has called it release 69. Smutty and unamusing. I will be posting a copy of this report on social media where it will be widely read. If you fail to take action there will be consequences. Thank you. I have archived this video in case the owner or Tesla decides to delete it. If that happens I will make another complaint with a link to my copy. A dummy USA address has been used to enable this submission. My true email address is used and you may contact me on this.

In Autopilot there has been a phantom braking problem (automatic emergency breaking due to object avoidance) since day one. It happened more than just regularly and would be uncalled for, scary, and dangerous. Ever since the update I have done that the company sent though, this has become now not just more than regularly but more than frequently and uncontrollably dangerous. It has done it around 30 times on a 9 and a half hour road trip. It has done a 20 mph slowdown from the speed limit FOR NO REASON in as fast as about two seconds frequently. The ONLY thing that has saved us from getting rear ended is due to driver diligence and pure luck of being on an open interstate because of the road trip instead of it being through the congested part of a city…where it still can happen easily.

In Autopilot there has been a phantom braking problem (automatic emergency breaking due to object avoidance) since day one. It happened more than just regularly and would be uncalled for, scary, and dangerous. Ever since the update I have done that the company sent though, this has become now not just more than regularly but more than frequently and uncontrollably dangerous. It has done it around 30 times on a 9 and a half hour road trip. It has done a 20 mph slowdown from the speed limit FOR NO REASON in as fast as about two seconds frequently. The ONLY thing that has saved us from getting rear ended is due to driver diligence and pure luck of being on an open interstate because of the road trip instead of it being through the congested part of a city…where it still can happen easily.

Tesla Model 3 main computer system failure. Failure was not cause by any negligence by the operator. The vehicle was parked over night and upon attempting to operate the vehicle the following day there was no power to the screen. There were no warnings prior. The screen which displays vehicle speed, vehicle battery level, seatbelt warning indicators was inaccessible. Also as a result of the computer failure the vehicle did not emit the required pedestrian safety sound, the front and rear collision warnings were disabled, charging was not possible, the ability to disable passenger airbags in case of a child needing to be transported in the front was inaccessible, if the vehicle was operated during winter the ability to defrost the windshield would be impossible and all safety and security features were disabled. The screen/computer has been an issue for several owners as easily viewed by a simple google search. The vehicle is only a year and a half old and was purchased new. The issues that occurred from the defective computer could of easily have caused of an accident or a caused disabled pedestrian to have been hit. The computer was deemed the cause by Tesla’s service professionals.

The Autopilot applies the brakes for no apparent reason, when there are no other vehicles in front of it, under good driving conditions; in clear daylight, on empty roads and on straight stretches of highway. My family could have been involved in a serious rear end collision, or caused other vehicles behind me to collide, if traffic was heavy at the time the system determined it needed to apply the brakes.

Had significant dangerous and scary Phantom breaking while driving on Highway 80 across Nevada. Seemed to be related to open highway with no vehicle visible on forward view during bright daylight. Sudden and deep breaking would occur at 75 mph or 80 mph repeatedly and with no apparent reason throughout the 12 hour drive. Was particularly pronounced when passing large semi-trucks. Would get sudden Phantom breaking just as Tesla would just get by a large truck. Could have caused serious event if another vehicle had been following. At first this just seemed inconvenient and unpredictable but in some cases seem like significant safety issue. Had to stop using system. Tried to report to Tesla but they have no way on their web site or private Tesla account to report.

The contact owns a 2021 Tesla Model 3. The contact stated while driving approximately 8 MPH, the vehicle inadvertently accelerated and jumped the curb. The contact depressed the brakes pedal to the floorboard; however, the vehicle continued to accelerate and crashed into a wall where the vehicle came to a stop. There was no warning light illuminated. The seat belt was on and the driver's air bag deployed, however, the contact head hit the windshield, and it shattered. The air bag was not covering the contacts face completely. The police arrived on the scene and filed a report. There were injuries to the contact's left wrist, neck, hip, and back, and a fracture to the right foot. The contact started receiving medical treatment the same day. The vehicle was towed to the contact's residence. The damage was to the front of the vehicle. The contact stated her personal phone was connected to Tesla, and an inoperative alert message illuminated. The manufacturer notified the contact at the time of the accident. The approximate failure mileage was 13,000.

Mileage: 13,000

The adaptive cruise control system consistently phantom brakes in situations where there is no traffic in front of the vehicle while cresting rolling hills. Sometimes this braking is relatively minor (<5 mph) while other times it is aggressive enough the passengers lurch forward. At the worst, this happened approximately 10 times in 30 miles while going the speed limit of 80mph.

Problems with phantom breaking while driving on the highways at speeds over 65mph. There will be no reason for breaking (I.e. the automatic breaking system picks up a truck driving on the opposite side of the road/direction and slams on the break aggressively) which can be a cause for a rear collision and whiplash for driver/passengers.

I engaged the cruise control while driving on the highway. I let go of the accelerator and it correctly kept the speed I had requested. It warned me that the car would not break. As the car passed another car (probably a police cruiser) that was parked in the ditch separating the two directions of the highway, the car suddenly applied the breaks and decelerated substantially. A pickup truck towing a trailer that was driving behind us was forced to swerve onto the right shoulder to avoid rear-ending our car.

While driving in Highway, Interstate or Freeway with cruise control enabled with or without autopilot the car suddenly breaks for no reason. It is a clear phantom break. It happened many times in different occasions even on the I40 with no car around in the middle of the Desert. In a couple of times a big truck was following and I was almost rear ended because this.

Car breaks heavily without warning or cause. No cars in front view yet applies breaks like avoiding an accident. Almost caused me to get rear ended multiple times.

Car breaks heavily without warning or cause. No cars in front view yet applies breaks like avoiding an accident. Almost caused me to get rear ended multiple times.

While traveling on interstate highways over a period of 2 days both in overcast and sunny conditions the vehicle initiated braking multiple times in cruise control only (not on autopilot). No other vehicle nor obstruction was near when this would happen.

Tesla has been phantom breaking during autopilot multiple times in a single drive and has happened on multiple drives.

There were 3 back-to-back incidents of phantom braking. Car was in Navigate on Autopilot mode on Highway 85 somewhere near Blossom Hill and going a 65mph (posted limit) but it slowed down dramatically causing the possibility of the car being rear-ended. There was no blocking vehicle or object that should have caused it to slow down and brake. In all three incidents, I was able to assume manual control and safely speed-up again.

When driving on the highway in adaptive cruise control, our vehicle all of a sudden breaked which slowed the car down dramatically. There was nothing around us that would have caused the car to automatically apply the breaks. This happened multiple times in a single drive on both Autopilot and Adapative Cruise Control. Luckily, no one was directly behind us when this happened so no collision was caused, but had someone been directly behind us we would have been hit. The vehicle has not been inspected by the manufacturer, insurance or police. The breaking was very random, and we had to tap the brakes to take control and hit the gas to get the car back to highway speeds. We have stopped using cruise control and autopilot after seeing this is a known issue and an investigation is ongoing. It is extremely concerning that this "phantom breaking" happens without warning and at random when there is nothing around the vehicle to cause it to apply the automatic breaking system. This is a safety issue on the road.

Cruise control set to 75mph (speed limit) on lightly trafficked divided highway at ~5pm on June 26. Skies were overcast and temp was about 80 degrees. Car braked from 75 to about 62mph but did not disengage adaptive cruise control and neither did I by applying the brakes. There was light traffic and it did not happen while approaching an overpass which has triggered this before on two occasions. After rapid deceleration to 72, car increases speed but fluctuated in high 60s and low 70s before returning to the programmed 75. Incident lasted about five seconds in total. Once car returned to 75, I disabled cruise control for remainder of journey. This was a 45 mile journey and the issue did not surface until about 35 miles in to the journey. Because this has happened before, I was mentally prepared for it this time and wanted to see if the car would eventually stabilize back to the 75mph programmed speed. In two prior incidents in late 2021, the braking was severe and without warning so in those instances I immediately deactivated system by pressing brake pedal. The incident I report now also had no warning, good weather, no cars within about 100 yards, and no sun glare at all. Road surface was very good as it had been recently improved in 2021 so lane markers were excellent as well.

What component or system failed or malfunctioned, and is it available for inspection upon request? - Cruise Control randomly slams on its brakes, no warning at all. No, it is not available upon request. How was your safety or the safety of others put at risk? - Cruise Control (Autopilot), puts my safety at risk because it can injure you if you are not anticipating the brakes being slammed, and it can put others at risk because if they aren’t following at a safe distance or not expecting the car to slam on its brakes, it can lead to an accident. Has the problem been reproduced or confirmed by a dealer or independent service center? - No. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? - No. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? - No.

Car brakes while using adaptive speed control. In one incident the car was traveling at 71 miles per hour and braked to 25 mph. In other situations the car braked by at least 5 mph, on some situations this happened while speed control was engaged and I was traveling at 50 mph or less. In all these situations, there was not another vehicle in front of me that posed an immediate threat of collision. The adaptive self dimming headlights do not work properly while driving at night. Lights do not always dim for approaching vehicles or when approaching another vehicle from behind. On some occasions the bright lights engage when approaching other vehicles OR dim when not approaching another vehicle. Other times the light repeatedly switch from bright to dim when following other vehicles. I reported these issues to TESLA. The response was that their engineers are aware of the problenms and it is related to a firmware update and that will be coming. I worry about being struck from behind when the brake suddenly engages. I also worry that the headlight situation can cause a crash by blinding drivers.

Car brakes while using adaptive speed control. In one incident the car was traveling at 71 miles per hour and braked to 25 mph. In other situations the car braked by at least 5 mph, on some situations this happened while speed control was engaged and I was traveling at 50 mph or less. In all these situations, there was not another vehicle in front of me that posed an immediate threat of collision. The adaptive self dimming headlights do not work properly while driving at night. Lights do not always dim for approaching vehicles or when approaching another vehicle from behind. On some occasions the bright lights engage when approaching other vehicles OR dim when not approaching another vehicle. Other times the light repeatedly switch from bright to dim when following other vehicles. I reported these issues to TESLA. The response was that their engineers are aware of the problenms and it is related to a firmware update and that will be coming. I worry about being struck from behind when the brake suddenly engages. I also worry that the headlight situation can cause a crash by blinding drivers.

The contact owns a 2021 Tesla Model 3. The contact stated while driving approximately 65 MPH with the self-driving feature activated, the vehicle experienced phantom braking. There was no warning light illuminated. The contact stated that there were no other vehicles nearby in the lane. Additionally, the contact was unaware of any shadows or anything else in the lane. The contact stated that the vehicle slowed down and then resumed a higher speed. The contact stated that he disengaged the self-driving feature and manually drove the vehicle. The vehicle was not taken to a dealer or independent mechanic to be diagnosed or repaired. The contact stated that he attempted to notify the manufacturer thru the vehicle App but was unable to leave a full detailed report. The approximate failure mileage was 10,445.

Mileage: 10,445

For no reason, the car applied significant braking while in Autopilot. There were no cars in front of me, no obstacles in the way and it was a clear, dry day. This is not the first time this has happened but it was the most significant.

On June 18 and 23, 2022, I was driving I-5 in Washington State with adaptive cruise control engaged when, abruptly and without warning, the vehicle decelerated. I overcame the first instance by depressing the accelerator; the vehicle self-corrected in less than a second in the second instance. In both cases, there were no vehicles in the immediate vicinity to present a possible hazard. The concern is for vehicles following closely during an incident that might not react quickly enough to avoid a rear end collision. The vehicle has not been inspected by another party and no attempt has been made to reproduce the condition for another entity.

The car will phantom brake suddenly and sometimes hard while the adaptive cruise is on. I have reported to Tesla and they say there’s nothing they have to fix right now. This is extremely dangerous and Tesla needs to focus on a fix.

During a recent road trip to another state, Auto Pilot was engaged and the emergency braking system forced the car quickly to a stop on many occasions. To the human eye, there should have been no reason for the brakes to engage. Luckily no one collided with us, but the Auto Pilot system is not to be trusted. The incidents mostly occurred on two-lane roads, however, noticeable hesitation was evident many times during freeway cruising. Tesla repair will not review my case because I don’t have a specific time(s) of incident and they will not tell me how to properly log this information into the car’s software when an incident does occur. I feel helpless and am very nervous to take this car on a trip.

I had 2 phantom braking incidents one one trip today. The situation was similar- a car broken down on the shoulder. In both cases i slowed down and moved a bit left to give them room. I had cruise control on but as I braked, it came off. In both cases, once I passed the cars, the Tesla brakes hard. In one case I was almost rear ended by the guy behind me. In both cases, i was in full control of the car and was slowing down and giving way. The phantom braking occurred as I was abreast or past the hazard - in other words, too unnecessary and too late to help anyway. It scared the heck out of me - twice. The car is unsafe at any speed

I had 2 phantom braking incidents one one trip today. The situation was similar- a car broken down on the shoulder. In both cases i slowed down and moved a bit left to give them room. I had cruise control on but as I braked, it came off. In both cases, once I passed the cars, the Tesla brakes hard. In one case I was almost rear ended by the guy behind me. In both cases, i was in full control of the car and was slowing down and giving way. The phantom braking occurred as I was abreast or past the hazard - in other words, too unnecessary and too late to help anyway. It scared the heck out of me - twice. The car is unsafe at any speed

On a trip to Northern California, I used the "traffic-aware cruise control", and there were several episodes of sudden hard braking for NO REASON. With no vehicle ahead for 20 car-lengths, no curves, no vehicles moving into our lane from the side, we had no clue to why this jarring experience occurred. I thought it might have been caused by gentle inclines in the road ahead, but there were plenty of these that did NOT cause this violent slam of the brakes. So, I dismissed that explanation. The final time it occurred, there was no incline, no impediments of any kind. Just a clear, flat lane ahead and no vehicle to the right, plus an unusually wide shoulder to the left. Not even a center divider wall or K-rail. The car is now scheduled to be taken to Tesla on June 29, but having obtained the appointment through the app, I have no way of knowing if I must leave the car overnight, if I can get a loaner, or even if they'll call me when it's done, assuming they can fix it.

I was driving on the freeway, North on I-5 here in Washington State, approximately 60 to 65 mph, when in autopilot the car phantom braked for no reason. The breaking was very hard, and occurred in the passing lane; this could’ve easily caused an accident but luckily did not.

When I am driving and using the cruise control (Tesla calls this Traffic Aware Cruise Control), the car will randomly brake while I am driving, sometimes very abruptly and hard, even though there is no obstacle, the road is clear, there is no weather, no danger, etc. There is no way to disable this "feature" if I do not like it so that I can use cruise control normally, the only solution is to drive it manually and not use cruise control. If somebody is behind me they almost run into me. I will provide a date below when this occured as requested, but it occurs EVERY SINGLE TIME I DRIVE THE CAR. Need to have an option to just have normal Cruise Control without the "Traffic Aware" portion. This is a REAL issue. I love my Tesla but I absolutely HATE this dangerous "feature" that DOES NOT WORK properly.

When I am driving and using the cruise control (Tesla calls this Traffic Aware Cruise Control), the car will randomly brake while I am driving, sometimes very abruptly and hard, even though there is no obstacle, the road is clear, there is no weather, no danger, etc. There is no way to disable this "feature" if I do not like it so that I can use cruise control normally, the only solution is to drive it manually and not use cruise control. If somebody is behind me they almost run into me. I will provide a date below when this occured as requested, but it occurs EVERY SINGLE TIME I DRIVE THE CAR. Need to have an option to just have normal Cruise Control without the "Traffic Aware" portion. This is a REAL issue. I love my Tesla but I absolutely HATE this dangerous "feature" that DOES NOT WORK properly.

While driving at 70 mph with adaptive cruise control engaged I experienced several instances of "phantom braking." The car braked hard all by itself with no driver input. This happened several times on June 2, 2022 and again on June 6, 2022.

When on Autopilot (Traffic-aware cruise control), the vehicle will brake suddenly and severely when cresting a hill that the cameras in the car cannot see over, if there is no other traffic in front of the car for the Autopilot cameras to reference against. This is most notable and disturbing on inter-city freeways in the western U.S. such as eastern Oregon or Nevada, where the freeways are rolling. This behavior (braking when cresting a hill with no vehicles visible in front of the car) is quite repeatable. The vehicle is a 2021 Tesla Model 3 with "Tesla Vision," i.e. cameras only with no radar. It is not possible to turn off the "traffic aware" element of Tesla's cruise control. If the Tesla interface had a toggle to turn off "traffic aware" so that it had conventional cruise control (i.e. the vehicle will simply hold the chosen speed regardless of surroundings), that would be helpful and in many ways safer. Ideally, though, they would reprogram the Traffic Aware Cruise Control so that it can handle cresting a hill.

When passing below an overpass the car will rapidly brake from 80-60 MPH or 65-45 MPH without warning. I have to take over and speed up to avoid someone hitting me from behind. I believe the issue happens because the car for a second thinks you are driving on the overpass which has a much slower speed (25-40 MPH). Therefore, it brakes hard to match the speed of the overpass. When it is enough of a distance away, it goes back to the normal highway speed. This issue has happened many times since I bought the car and has not been resolved after many updates.

When applying Cruise Control on the model 3, the Tesla will apply phantom braking in various situations. The car will brake on its own without any human interaction. This has occurred on the highway with no other cars nearby that should cause such braking.. This phantom braking has caused me to not use cruise control at all in my car.

The contact owns a 2021 Tesla Model 3. The contact stated while driving 70 MPH with the cruise control activated, the vehicle applied the brakes independently. The contact stated no warning light was illuminated. The contact stated he experience the failure three times while using the cruise control feature that same day. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 7,000.

Mileage: 7,000

The car will randomly brake on the highway when its in auto drive with no need to brake immediately.

The car will randomly brake on the highway when its in auto drive with no need to brake immediately.

While driving on highway, I have autopilot on, and out of nowhere the vehicle will engage emergency braking.

While driving on highway, I have autopilot on, and out of nowhere the vehicle will engage emergency braking.

While driving on the highway, , this car continues to phantom brake at high speeds which is dangerous. Both adaptive cruise control and “autopilot” experience this. It can be an overpass, cloud, or when the car sees it’s shadow. The phantom braking is a serious safety issue and makes me not want to use the feature. Tesla needs to improve this ASAP.

While driving on the highway, , this car continues to phantom brake at high speeds which is dangerous. Both adaptive cruise control and “autopilot” experience this. It can be an overpass, cloud, or when the car sees it’s shadow. The phantom braking is a serious safety issue and makes me not want to use the feature. Tesla needs to improve this ASAP.

I was in auto pilot (cruise control). The car was going at 78 mph. The brakes suddenly engaged for no reason. Slowing the car to 60 mph very quickly. It basically felt like I slammed on the brakes. This happened 3 times.

I was in auto pilot (cruise control). The car was going at 78 mph. The brakes suddenly engaged for no reason. Slowing the car to 60 mph very quickly. It basically felt like I slammed on the brakes. This happened 3 times.

The autopilot used for automatic cruise control regularly brakes for unexplained reasons when there is no immediate threat. This is not only scary but it could cause an accident if other cars were right behind me. There is one part of highway 470 in Highlands Ranch, CO, where it happens every time, like autopilot is expecting the speed limit to drop so it slows way down for me, but the speed limit hasn’t changed. Other times it just happens randomly. It will happen at least once usually every hour I use autopilot.

Since purchasing my vehicle a year ago, it had has occasionally engaged the emergency braking system in situations where other cars have not been a threat or directly in front of me. This week, the system engaged when I was driving up an incline on the highway with no vehicles around me. Very disconcerting and DANGEROUS. As a result I deactivated the system. This is a flaw.

On multiple occasions, my vehicle has experienced the same “phantom braking” problem other Teslas have. This has happened when cruise control (autopilot) was enabled. No cars or obstacles were directly in front of my vehicle and the immediate breaking was unnecessary

While using cruise control on the highway, I was rounding a slight bend in the road and the automatic braking system actuated, immediately slamming on the brakes and scrubbing off significant speed. Luckily I was close to the accelerator pedal and was able to quickly react by applying throttle, but had there been another vehicle following closely, there could have been a collision. There were no visible objects in or around the road to cause an emergency braking event. I have not used the cruise control feature since this occurrence, but it had happened twice before with similar circumstances. Reference "phantom braking" phenomenon well documented by many other operators.

Car brakes heavily and suddenly for no reason while using cruise control. Seems to be on 2 way roads when semi-truck is passing by in opposite lane. Has happened multiple times on different days under different conditions. Concerned about being rear-ended. I have not had this inspected and no crash has occurred. I stopped using cruise control on this vehicle due to safety concerns.

Vehicle will engage breaks when there is no obstacle or while on a straight road when placed in cruise control.

While driving with cruise and steering control, car will emergency brake like something is in front of the car. Many call it "phantom" braking. One time on a 2 lane highway the car braked hard for no reason, it happened on the way to Vegas and a large group of bikers were behind us. Very scary at highway speeds. We let the bikers pass.

When Autopilot is engaged the vehicle will sometimes rapidly slow down unexpectedly. There is no visual or audio warning to accompany the slow down to indicate what the vehicle detected to cause this. It is a rare occurrence but could potentially cause an accident in heavy traffic.

This happens to me all the time. Especially on interstates such as I-4 in Florida. The car will suddenly brake with no warning, slowing down dramatically. For example, if driving at 80 mph the car will suddenly for no reason slam on the brakes to 50mph, almost having other cars behind me rear end me. This issue has never been dealt with by Tesla and Tesla claims it's a normal problem to have. I've never had any other car with adaptive cruise control do this.

My car has on several occasions while using cruise control feature engaged, braked unexpectedly at highway speeds when nothing was in front of the car. My Tesla does not have Full Self Driving capabilities, it has also done this emergency braking with Autopilot engaged. It's happened so many times while the Autopilot is engaged, that I never use Autopilot anymore. I have twice nearly been rear ended, (with only cruise control engaged) by a car following me when this auto-braking happened in highway traffic, forcing me to have to immediately hit the accelerator pedal in response, to avoid being hit from behind after the brakes auto engaged.

Driving at night, using adaptive cruise control, about 70 MPH, no other vehicles near by, multi lane highway, when pavement changed from black tarmac to lighter concrete surface, the Tesla braked hard automatically. I accelerated and disengaged the cruise control. No loss of control.

I’ve experienced the “phantom braking” most recently on may 29th, on highway. No cars around or anything that should have trigged it. I was in autosteer mode when it happened both times.

The Tesla Autopilot system in my Model 3 repeatedly malfunctions by way of "phantom braking".The latest incident I was luckily able to capture on camera. In this incident, my vehicle is driving down a Nevada highway in the heat, with no oncoming vehicles and a vehicle in my lane well over a mile away and increasing (they had just passed me a few minutes prior). With the speed set to 74mph (driving 73 at the time) the vehicle proceeds to apply heavy brakes, and slows to 56mph for no reason (no vehicles behind, thankfully). My safety and the safety of other motorists is put at risk with these events as the unexpected braking not only whips around the passengers of MY vehicle, but also puts at risk any vehicles that may be behind me, expecting me to maintain my current velocity. The problem has not been reproduced by a dealer as far as I am aware, but the service department of my local Tesla dealer has confirmed the issue is caused by the "Tesla Vision" camera-only system. They (service team) claim that there is no issue with the system, and that it is behaving as expected. They do not view this as a malfunction, and merely view it as the system being extra cautious, which is simply lazy. This component has not yet been inspected by any entity mentioned above. There were no symptoms of this issue prior to it occurring, however this did occur repeatedly over the course of my trip to/from Las Vegas.

The car, when using its "traffic aware cruise control" exhibits extreme sudden breaking for no reason (phantom braking). On Thursday, I was on a major interstate in the middle of the day, perfectly marked lanes, no gradient changes, no weather or visibility issues, with absolutely nothing in front of me. The car would suddenly brake aggressively for no reason, sometimes hard enough to hurt my neck. If another car had been following me, I would have been immediately rear ended. Too add insult to injury, Tesla charges for the full self driving function which fully navigates the car on highways, and even though it is so dysfunctional that it is dangerous, they will not refund it after I reported this behavior. Tesla FSD and traffic aware cruise control, in it's current state, is a danger to the public.

Sudden unexpected deceleration. There was no car or obstacle in my lane and my car hit the brakes. It seems to have gotten worse with the latest firmware update. It seems like when a shiny object is on a mailbox near the side of the road the car hits the brakes. The truck behind me could have hit me and got very angry and sped around me. This is going to cause an accident if not fixed. It's happened multiple times now.

Referred to as "Phantom Braking," the vehicle decelerates dramatically when in "Autopilot" mode. This happens at seemingly random times and locations. It happens in the day or night, open or populated roads, multi-lane highways or single lane. The deceleration is so sudden that passengers in the car are thrown forward. One instance the car decelerated from about 75 MPH to 45 MPH in a matter of about 2 seconds. Thankfully no one was behind me. Others worry that if someone is following too closely, they could rear-end the Tesla... I don't think a vehicle would have to follow all that closely for this to cause an accident.

Referred to as "Phantom Braking," the vehicle decelerates dramatically when in "Autopilot" mode. This happens at seemingly random times and locations. It happens in the day or night, open or populated roads, multi-lane highways or single lane. The deceleration is so sudden that passengers in the car are thrown forward. One instance the car decelerated from about 75 MPH to 45 MPH in a matter of about 2 seconds. Thankfully no one was behind me. Others worry that if someone is following too closely, they could rear-end the Tesla... I don't think a vehicle would have to follow all that closely for this to cause an accident.

Tesla Autopilot will disengage and brake when driving under a bridge or a freeway sign. Tesla detects the overhead object as an object on the road and logs a forward collision warning. This issue has been reported to Tesla and after multiple service appointments, tesla has failed to fix the issue. Tesla logs forward collision warnings and determines safety score for insurance price, having multiple false forward collision warning reduced the score and increases the premium which in return benefits tesla financially. I have video evidence for an instance that I have provided to tesla to look into and the issue is still not fixed.

Tesla Autopilot will disengage and brake when driving under a bridge or a freeway sign. Tesla detects the overhead object as an object on the road and logs a forward collision warning. This issue has been reported to Tesla and after multiple service appointments, tesla has failed to fix the issue. Tesla logs forward collision warnings and determines safety score for insurance price, having multiple false forward collision warning reduced the score and increases the premium which in return benefits tesla financially. I have video evidence for an instance that I have provided to tesla to look into and the issue is still not fixed.

It has happened before, but on a 4 hour highway trip yesterday, the vehicle engaged in 3 incidents of sudden phantom braking. Twice the road was completely empty with no other vehicles around me. The third time the shadow of a truck in another lane may have triggered the event. Each time we were traveling over 65 miles per hour. For the last hour+ of the trip, I disengaged the autopilot (adaptive cruise control) feature and drove completely manually.

It has happened before, but on a 4 hour highway trip yesterday, the vehicle engaged in 3 incidents of sudden phantom braking. Twice the road was completely empty with no other vehicles around me. The third time the shadow of a truck in another lane may have triggered the event. Each time we were traveling over 65 miles per hour. For the last hour+ of the trip, I disengaged the autopilot (adaptive cruise control) feature and drove completely manually.

The car, driving on cruise control at 75mph did an expected and very sharp braking and slowed down to 55 mph. There were no upcoming alerts or indicators of this to happen. The braking was sudden and definitely not expected by drivers behind. This incident was reported to Tesla service team.

The contact owns a 2021 Tesla Model 3. The contact stated while driving approximately 60-70 MPH with the adaptive cruise control engaged, the vehicle experienced phantom braking. The contact then accelerated and continued driving. The contact was unsure whether there was a warning light illuminated. The contact stated that the failure had been reoccurring while driving alongside other vehicles. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 900.

Mileage: 900

While driving, typically on two lane roads with oncoming traffic, the vehicle will suddenly break hard for no visible reason. Often it is the case that the vehicle breaks so hard that things in the car fly forward and the seatbelts lock up causing people to grunt at the force and scream. This happens while using full self driving or just regular cruise control. There is no warning and people behind my vehicle have a high likelihood a rear ending me since there is no visible or obvious cars for my breaking. Also it would appear that I am brake checking the person behind me, causing them to become angry with me through no fault of my own, but it is understandable based on the reaction of my vehicle. When this happens I typically report the issue directly to Tesla using their voice feature to report issues. The command is typically “bug report phantom braking.”

My Tesla has continued from the time of purchase has Fantom braked when no vehicles are even around. Putting it on basic Cruise control or adaptive control makes no difference. Slamming on the brakes at any time is not safe with all the tailgaters that drive today. Who’s liability is it when your car brakes for no reason a you are rear ended ?

My Tesla has continued from the time of purchase has Fantom braked when no vehicles are even around. Putting it on basic Cruise control or adaptive control makes no difference. Slamming on the brakes at any time is not safe with all the tailgaters that drive today. Who’s liability is it when your car brakes for no reason a you are rear ended ?

The cars cruise control system is unusable due to random and unpredictable Phantom breaking. This is a safety risk due to the potential collisions it can cause as a result of slamming on the brakes. We have had multiple close calls with this system. It specifically has issues on two lane highways.

The cars cruise control system is unusable due to random and unpredictable Phantom breaking. This is a safety risk due to the potential collisions it can cause as a result of slamming on the brakes. We have had multiple close calls with this system. It specifically has issues on two lane highways.

While driving on the highway or freeway, the vehicle suddenly slowed dramatically as if the brakes had been heavily applied. It did this three times over the course of two days, always while the car was set on cruise control (not auto pilot).

Brakes were automatically engaged and speed dramatically reduced on an otherwise deserted, two-line highway. Speed was reduced from 68mph to 30mph in a few seconds multiple times in the span of two hours. Adaptive cruise control was active at the time. This would put myself and any vehicles behind me in danger, so I disabled the feature for the remainder of the drive. The behavior has been reproduced multiple times since then, in various conditions. No warning lamps or other messages appeared at the time. I reported the problem to the manufacturer and schedule a service appointment. The manufacturer canceled this appointment, stating, "Our technicians will be unable to change this behavior."

I'm reporting a "phantom braking" incident that occurred while driving approximately 75 mph in the left lane of Interstate 10 just west of Casa Grande, AZ. (This section of the road had two westbound lanes.) "Traffic-aware cruise control" was set at approximately 75 mph. The Tesla slammed on the brakes for no reason (no vehicles were in front of me.) This was terrifying - luckily the vehicle that was directly behind me noticed and reduced their speed while I quickly pushed down on the accelerator. A collision was thus avoided. However, this could have been deadly for both my vehicle, the vehicle behind me, and so on. There was absolutely no reason for the car to apply the brakes - there were no obstructions in the road. My passenger can confirm the situation. I have had "phantom braking" occur with this Tesla including slowing down almost to a stop when a semi truck is in the coming lane of a two-lane road. The "traffic-aware cruise control" is inconsistent in its performance and travelling at high speeds, incredibly dangerous. We could not operate this function during the rest of our travels on the interstate due to this issue and limited operation of "Traffic aware cruise control" to 55 mph & under roads when there was no traffic behind us. I've been reading up on the Tesla "phantom braking" phenomenon and am really disappointed in this very unsafe safety feature which I didn't know about before purchasing my Tesla. My Model 3 is newer and has "Tesla Vision" instead of radar like older Model 3's. I think "Tesla Vision" is messed up and needs more work. This "automatic braking" could have caused a serious collision.

There is serious issue with automatic emergency braking. My Tesla Model 3 2021 applied automatic emergency braking while on auto steer or cruising on single lane highway as well as on 4 lane freeways without anything ahead which required to brake. Fortunately, we were not being followed or tail gated closely. The speed reduced from 65 mph to 30mph suddenly on a freeway. This has happened to me 3 times. twice on single lane highway and once on 4 lane freeway. Tesla's cruising and self driving is worthless if I can't use them.

This vehicle's basic "autopilot" and adaptive cruise control is dangerous. The vehicle is unable to pass a truck on the highway while either system is active without slamming on the brakes. This is major safety hazard on the highway as following cars do not expect any vehicle to slam on the brakes at highway speeds. Further, using the cruise control on two lane road is also dangerous. Any large vehicle in the opposite oncoming lane will cause the vehicle to slam on its brakes. These systems are essentially unusable and are very dangerous to use.

This vehicle's basic "autopilot" and adaptive cruise control is dangerous. The vehicle is unable to pass a truck on the highway while either system is active without slamming on the brakes. This is major safety hazard on the highway as following cars do not expect any vehicle to slam on the brakes at highway speeds. Further, using the cruise control on two lane road is also dangerous. Any large vehicle in the opposite oncoming lane will cause the vehicle to slam on its brakes. These systems are essentially unusable and are very dangerous to use.

This vehicle's basic "autopilot" and adaptive cruise control is dangerous. The vehicle is unable to pass a truck on the highway while either system is active without slamming on the brakes. This is major safety hazard on the highway as following cars do not expect any vehicle to slam on the brakes at highway speeds. Further, using the cruise control on two lane road is also dangerous. Any large vehicle in the opposite oncoming lane will cause the vehicle to slam on its brakes. These systems are essentially unusable and are very dangerous to use.

Phantom braking occurs often when using traffic aware cruise control. I have not been able to determine a pattern, as the malfunction is not consistent. It can occur on a 2-lane road (with lines) as well as on a 6-line divided highway. I can tell the difference between phantom braking and the vehicle adjusting speed for an upcoming curve, as normal adjustment occurs in the same spot each time. Phantom braking is unpredictable, and may not occur in a location that it previously had. There are days it never happens, or sometimes once a day, or has occurred 5 times in an approx 6 mile trip. During a phantom braking event, the car unexpectedly applies the brakes hard. I react by pressing the accelerator, which usually results in a speed greater than the speed limit. I use the bug report feature each time it occurs, so Tesla would be able to view each event. As I'm sure you can tell from the VIN, this is a camera-only Tesla system. I do not have full self driving.

Phantom braking occurs often when using traffic aware cruise control. I have not been able to determine a pattern, as the malfunction is not consistent. It can occur on a 2-lane road (with lines) as well as on a 6-line divided highway. I can tell the difference between phantom braking and the vehicle adjusting speed for an upcoming curve, as normal adjustment occurs in the same spot each time. Phantom braking is unpredictable, and may not occur in a location that it previously had. There are days it never happens, or sometimes once a day, or has occurred 5 times in an approx 6 mile trip. During a phantom braking event, the car unexpectedly applies the brakes hard. I react by pressing the accelerator, which usually results in a speed greater than the speed limit. I use the bug report feature each time it occurs, so Tesla would be able to view each event. As I'm sure you can tell from the VIN, this is a camera-only Tesla system. I do not have full self driving.

Was driving and automatic braking system engaged when there was no impeding incident.

I was driving on interstate 8 from Tucson to San Diego. In a matter of 2 hours my Tesla activated the brakes on its own 5 times, sometimes in a rapid series of 2 to 3 times, causing me to lurch while going 75 mph so I immediately disengaged the adaptive cruise control. I was on a 2 lane divided highway with no cars in front of me, see picture attached. Since taking possession of my new 2021 model 3 in November 2021, it has happened about 11 times. I just had my wife research it. I will not be using this feature. A semi truck behind me almost swerved off the road because of my braking. This is unacceptable that Elon Musk is not recalling vehicles. His arrogance is going to kill people for this clear safety issue. Please take over and do the recall. They sold me this car knowing this was an hazard since June 2021.

I was driving on interstate 8 from Tucson to San Diego. In a matter of 2 hours my Tesla activated the brakes on its own 5 times, sometimes in a rapid series of 2 to 3 times, causing me to lurch while going 75 mph so I immediately disengaged the adaptive cruise control. I was on a 2 lane divided highway with no cars in front of me, see picture attached. Since taking possession of my new 2021 model 3 in November 2021, it has happened about 11 times. I just had my wife research it. I will not be using this feature. A semi truck behind me almost swerved off the road because of my braking. This is unacceptable that Elon Musk is not recalling vehicles. His arrogance is going to kill people for this clear safety issue. Please take over and do the recall. They sold me this car knowing this was an hazard since June 2021.

We just took our first road trip from Minneapolis to Denver in our 2021 Model 3 and experienced about 14 phantom braking events in about 900 miles. Two happened at night and the rest in broad daylight with perfect visibility on the Interstate. There was nothing I saw in or by the road that would explain any camera confusion. In all but two events, there were no other cars within 100 yards. In the first 200 miles we had 2 minor braking events and one severe one (hard breaking that required steady accelerator pressure to regain and maintain speed). There were no events in the next 300 miles. Then we had a moderate event which I immediately corrected. The next event was the most severe -- rapid deceleration followed by acceleration then deceleration, then a few seconds of speed fluctuation before I took full control (I purposely allowed this event to play out without intervention since there was no one around us and I wanted to see if it would correct itself--it didn't). Unfortunately, my wife hurt her neck in this one which resulted in neck pain and headaches for the rest of the day. Our dogs were in the back seat and were tossed around but OK. I then pulled over and rebooted the car. Within 5 minutes we had another moderate event. I pulled over again, cleaned the windshield, and reset/recalibrated the cameras. We understood this might take up to 100 miles, but in our case it only took about 5 miles. We tried the autopilot again and had a minor event within minutes and another minor event a few minutes later, and then a third a few minutes after that. I thought maybe the cameras didn't properly recalibrate since the process was so fast, so I pulled over and recalibrated again. As before, recal was done in a few miles. At this point my foot was hovering over the accelerator so I was able to intervene quickly to mitigate the severity. Over the next 20 miles there were 5 more events--a mixture of minor and moderate. We gave up and drove the last 100 miles manually.

Phantom braking, the vehicle will stop unexpectedly while using adaptive cruise control even if there are no vehicles or objects on the road for miles.

I have a lot of unexpected braking problems for no reason

When driving using either the "traffic aware cruise control" or "autopilot" (I do not have full self driving), the care frequently slams the brakes when there is no instance of an obstacle in-front of the vehicle. This has happened consistently and frequently causing instances with cars having to go to the shoulder to not rear end me. Most commonly this has occurred on rural 2 lane roads when a vehicle is coming from the other direction. As the vehicle from the other direction approaches the Tesla will suddenly emergency brake unexpectedly. This issue is even further exacerbated at night when this can happen with almost every passing vehicle. This issue has occurred enough times with either near rear end incidents or catching me so off guard I struggle to maintain my composure I often do not use the feature and am looking at getting rid of it due to being unusable even with the basic cruise feature. The date and speed below are the most recent but this has occurred many times in 2500 miles (easily 50 or more).

When driving using either the "traffic aware cruise control" or "autopilot" (I do not have full self driving), the care frequently slams the brakes when there is no instance of an obstacle in-front of the vehicle. This has happened consistently and frequently causing instances with cars having to go to the shoulder to not rear end me. Most commonly this has occurred on rural 2 lane roads when a vehicle is coming from the other direction. As the vehicle from the other direction approaches the Tesla will suddenly emergency brake unexpectedly. This issue is even further exacerbated at night when this can happen with almost every passing vehicle. This issue has occurred enough times with either near rear end incidents or catching me so off guard I struggle to maintain my composure I often do not use the feature and am looking at getting rid of it due to being unusable even with the basic cruise feature. The date and speed below are the most recent but this has occurred many times in 2500 miles (easily 50 or more).

When driving using either the "traffic aware cruise control" or "autopilot" (I do not have full self driving), the care frequently slams the brakes when there is no instance of an obstacle in-front of the vehicle. This has happened consistently and frequently causing instances with cars having to go to the shoulder to not rear end me. Most commonly this has occurred on rural 2 lane roads when a vehicle is coming from the other direction. As the vehicle from the other direction approaches the Tesla will suddenly emergency brake unexpectedly. This issue is even further exacerbated at night when this can happen with almost every passing vehicle. This issue has occurred enough times with either near rear end incidents or catching me so off guard I struggle to maintain my composure I often do not use the feature and am looking at getting rid of it due to being unusable even with the basic cruise feature. The date and speed below are the most recent but this has occurred many times in 2500 miles (easily 50 or more).

When The auto pilot is activated I have experienced many times that the car randomly stops. This happened when I was on the highway and I was almost rear ended

When The auto pilot is activated I have experienced many times that the car randomly stops. This happened when I was on the highway and I was almost rear ended

The automatic emergency brakes would go off while driving on autopilot at highway speed, when there is nothing in front of the car. The brakes are very unexpected and aggressive, potentially putting the car at risk of being rare ended. Tesla states that I should press on the accelerator to override the brakes, but most times the braking is so aggressive that the override isn’t affective. Moreover, my car would give false forward collision warning if the car in front of me slows down even a little bit, even when there is at least a 5 car distance from me to the car in front of me, and we are no where near colliding. Tesla would use these false forward collision warnings to drive down my “safety score” and raise the premium of the insurance they offer me.

The automatic emergency brakes would go off while driving on autopilot at highway speed, when there is nothing in front of the car. The brakes are very unexpected and aggressive, potentially putting the car at risk of being rare ended. Tesla states that I should press on the accelerator to override the brakes, but most times the braking is so aggressive that the override isn’t affective. Moreover, my car would give false forward collision warning if the car in front of me slows down even a little bit, even when there is at least a 5 car distance from me to the car in front of me, and we are no where near colliding. Tesla would use these false forward collision warnings to drive down my “safety score” and raise the premium of the insurance they offer me.

While using autopilot or cruise control on the highway, the vehicle frequently brakes for no reason and without warning. This occurs repeatedly throughout the drive.

While using autopilot or cruise control on the highway, the vehicle frequently brakes for no reason and without warning. This occurs repeatedly throughout the drive.

Drivers side camera not working making cruise control (adaptive & regular) unavailable also left turn blind spot visualization not available.

We were traveling at about 75 mph on Intestate 94 in Wisconsin (same speed as the other cars around us) using adaptive cruise control when our car suddenly hit the brakes, the display showed the speed limit sign of 70 MPH, but the display where it would have shown the max speed we set, instead showed maximum speed of 40 mph. I used the accelerator pedal to return the speed to that of the surrounding traffic without problems. During other parts of the journey cars came up close behind us as they wanted to go faster and had this happened then we would have been the lead car in a severe rear end collision. This happened several other times during the same two day road trip, including once about a minute before the incident described above, but none were this severe, perhaps "lightly" tapping the brakes even though there would not have been a need to.

We were traveling at about 75 mph on Intestate 94 in Wisconsin (same speed as the other cars around us) using adaptive cruise control when our car suddenly hit the brakes, the display showed the speed limit sign of 70 MPH, but the display where it would have shown the max speed we set, instead showed maximum speed of 40 mph. I used the accelerator pedal to return the speed to that of the surrounding traffic without problems. During other parts of the journey cars came up close behind us as they wanted to go faster and had this happened then we would have been the lead car in a severe rear end collision. This happened several other times during the same two day road trip, including once about a minute before the incident described above, but none were this severe, perhaps "lightly" tapping the brakes even though there would not have been a need to.

I was on I-470 east of I-25 going east. I was traveling at 83 MPH, therefore the car was not in Autopilot, only had cruise control on. I signaled a lane change, made the lane change, and then the car applied brakes hard, going from 83 MPH down to 66 MPH. This happened in front of a late-model full-size pickup truck. The driver of the truck was not happy and tailgated for about 2 miles. I reported this problem to Tesla. They first don't want to even allow a service visit on the issue. Second, they want to charge me over $80 for a service visit on a car that is under warranty. When we had FSD beta in January 2022, we didn't face these issues except once or twice. Tesla advisor even admitted to me that cars with FSD beta and cars with Autopilot have different navigation software. Therefore, Tesla has a fix for this issue.

I was on I-470 east of I-25 going east. I was traveling at 83 MPH, therefore the car was not in Autopilot, only had cruise control on. I signaled a lane change, made the lane change, and then the car applied brakes hard, going from 83 MPH down to 66 MPH. This happened in front of a late-model full-size pickup truck. The driver of the truck was not happy and tailgated for about 2 miles. I reported this problem to Tesla. They first don't want to even allow a service visit on the issue. Second, they want to charge me over $80 for a service visit on a car that is under warranty. When we had FSD beta in January 2022, we didn't face these issues except once or twice. Tesla advisor even admitted to me that cars with FSD beta and cars with Autopilot have different navigation software. Therefore, Tesla has a fix for this issue.

I was on I-470 east of I-25 going east. I was traveling at 83 MPH, therefore the car was not in Autopilot, only had cruise control on. I signaled a lane change, made the lane change, and then the car applied brakes hard, going from 83 MPH down to 66 MPH. This happened in front of a late-model full-size pickup truck. The driver of the truck was not happy and tailgated for about 2 miles. I reported this problem to Tesla. They first don't want to even allow a service visit on the issue. Second, they want to charge me over $80 for a service visit on a car that is under warranty. When we had FSD beta in January 2022, we didn't face these issues except once or twice. Tesla advisor even admitted to me that cars with FSD beta and cars with Autopilot have different navigation software. Therefore, Tesla has a fix for this issue.

The contact owns a 2021 Tesla Model 3. The contact stated that while driving at various speeds with the cruise control activated, the vehicle would independently slow down without warning as vehicles on the opposite side of traffic would pass by his vehicle. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 1,000.

Mileage: 1,000

When the cruise control is activated, phantom braking happens within about 20 seconds. Also, when autopilot is engaged, phantom braking also happens within about 20-30 seconds. The phantom braking happens when there are no obstacles in the road or other traffic.

When the cruise control is set at a speed or the line centering cruise control is used the car will slam on it's brakes and go from the set 75 to between 50-60mph then back to the set speed. This happens almost every time I drive the car on the highway and a few times in town(35mph) it happens so often I stopped using cruise control because I am afraid of getting rear ended. I have been looking online and others are calling this phantom braking.

Three times, while using cruise control with autopilot, my Model 3 rapidly braked with no one in front of me while driving on the interstate at 70-75MPH. Luckily I was paying attention and quickly accelerated to avoid traffic following me from running into me. One of the times was a severe “brake check” on a following car. I don’t use the option in traffic anymore.

When either in autopilot or in cruise control especially in long drive car perform phantom breaking creating a risk of rear-end collision with following vehicles. Car vision system at times recognize cars coming in the opposite way as imminent collision and performs emergency phantom breaks.03/

When either in autopilot or in cruise control especially in long drive car perform phantom breaking creating a risk of rear-end collision with following vehicles. Car vision system at times recognize cars coming in the opposite way as imminent collision and performs emergency phantom breaks.03/

The car randomly and violently applies the brakes, this occurs when it is in cruise control. It may occur due to shadows, oncoming cars both on two and four lane highways. Also occurs if I pass a semi truck on a 4 lane highway. It occurs nearly every time I use the cruise control. I have had cars in back of me nearly hit me due to the sudden and unexpected braking at highway speeds.

This vehicle phantom brakes during our last 2k miles trip. Happens while passing under pass, bridges, on coming vehicles on 2 way lanes, and just randomly when i was the only car on the highway.

On several occasions (probably around 10 times) since I purchased the car in November of 2021 I have experienced phantom braking while using adaptive cruise control. Most have been minor with a couple instances of severe braking that could definitely have caused a rear end accident if there were cars behind me. These have occurred on busy city streets while traveling 40-50 mph. None have occurred on freeways. I have not notified Tesla but see that others are having problems too. Software appears up to date.

Our company Model 3 is having repeated phantom braking issues either in Traffic Aware Cruise Control (TACC) or in Autosteer mode. Through time we have determined some expected situations but there are also many other times totally unexpected. The most common situation is while driving in TACC mode (standard cruise control) on a standard highway (one lane each direction) and passing a semi-truck. This situation results in phantom braking about in about 50% of instances. Beyond semi's, phantom braking can occur from other vehicles, shadows from trees, going up or down small inclines, changes in road coloration (going from cement to black top), and even when no obvious reason is present on a totally clear, flat road. During a 2-3 hour drive the average is about 20 instances of phantom braking. This has been reported to Tesla. They have apparently reviewed the information and determined nothing is malfunctioning with the vehicle and reminded us that Autopilot functions are all Beta and they are not responsible to resolve the problems. Attached below are reports completed for Tesla to describe information about phantom braking instances during a test period which was about an hour of driving.

The contact owns a 2021 Tesla Model 3. The contact stated while driving approximately 75 MPH, the vehicle decelerated inadvertently. The contact stated that the vehicle would detect a non-existent road hazard causing the vehicle to slow down dramatically, almost causing a rear-end crash. The contact stated that there were no warning lights illuminated. The contact stated that while researching online he became of similar failures. The dealer and the manufacturer were contacted; however, no assistance was offered. The approximate failure mileage was 10,000. On a recent trip up the same two-lane segment of US-95 where chronic incidence of my 2021 Tesla Model 3 suddenly removing acceleration causing a very dangerous unexpected drastic slowing from high speeds, recurrence of this problem indicated what might be causing the problem. There are certain times of day when on a mostly level asphalt roadway it appears there are patches of water or grease on the pavement when seen from a distance.

Mileage: 10,000

Tesla Model 3 Phantom Braking while on cruise control. This car is a daily driver mostly expressway miles and cruise control is used every day for the majority of the drive. While driving on cruise control at 70 miles an hour the car will randomly brake hard enough for all items on the car seats to be sent to the floor. This happens in wide open situations with no other cars around in broad daylight. This has been occurring about twice a month since purchase. I am worried someday I may be rear ended or the car may brake hard into a slide. This has been mentioned to Tesla multiple times at service calls and they say they are working on it

Phantom braking while cruise control engaged. I do not have Full Self Driving, was only using the basic cruise. Appears to be worse when approaching large semi trucks, but has also happened numerous times when absolutely nothing is around (no cars, animals). No warning provided. Example: car will go from 75mph to 60mph in 1 second, then “recover” and go back to 75mph.

Phantom Braking

Adaptive cruise control engaged. Traveling over the crest of a hill after dark, the brakes automatically applied hard when an oncoming vehicle approaches uphill. This has occurred on several occasions.

Was driving on clear roads, there was a driver ahead of me but they were over 100 yards away, the vehicle behind me swerved to make sure they didn't get hit by my car's auto-braking safety feature. the vehicle was on autopilot using adaptive cruise control and just randomly used the safety feature without any warning or indication that there was any object on the freeway. The Incident had occurred in the morning on the 405s freeway.

Was driving on clear roads, there was a driver ahead of me but they were over 100 yards away, the vehicle behind me swerved to make sure they didn't get hit by my car's auto-braking safety feature. the vehicle was on autopilot using adaptive cruise control and just randomly used the safety feature without any warning or indication that there was any object on the freeway. The Incident had occurred in the morning on the 405s freeway.

I am experiencing phantom breaking on our Model 3. While traveling last weekend on Interstate 5, as well as on CA 101 - the vehicle frequently slowed abruptly while driving at highway speeds. This occurred both with other vehicles around, and with no vehicles present - also while driving at times in clear daylight and while approaching shadows from surrounding objects such as trees or highway overpasses. It rendered the adaptive cruise control non-useable on a 5hr drive home due to the sudden and abrupt slowing of the vehicle.

Three times so far in a week, the car has had extreme hard breaking on the freeway. These were done in full self drive mode. Absolutely terrifying and so unsafe for my family to have this happen.

This complaint was prompted by reading recent news reports of 'phantom braking' with our model vehicle. Previous to these reports, I did not have an awareness of NHTSA and their reporting mechanism. Driving on a highway, adaptive cruise control application. Sudden braking applied without my foot touching brake pedal. It was a sunny day, without any obvious need for braking. I was able to apply acceleration which terminated the braking cycle. No harm done, however if there was a car behind me there could have been a significant car accident at high speeds (>70 mph). This 'phantom braking' also occurred late 2021, also at highway speeds, on at least two occasion on the same trip cycle, in similar driving conditions (clear, dry). Nothing has been inspected. No indicators or warning lamps or messages applicable.

I currently drive a 2021 Tesla model 3. When I drive this car down two lane highways my cruise control is almost un usable not to mention auto pilot. Almost every time a larger vehicle, something like a Semi truck comes from the other direction in the opposite lane my car slams the brakes. At night time it’s even worse when headlights are in the distance my car slams the brakes and when the headlights are closer it slams the brakes again. It also has random phantom breaking. I tried the service department and the told me it was a software issue and there was nothing they could do. The technician told me it would improve if I purchased FSD. I don’t believe it, if basic cruise control doesn’t work how is FSD going to work. I don’t know who to contact or even what to do about this issue, the service department refuses to even look at my car.

The car will brake seemingly for no reason while on Autopilot. The environment does not change at all, yet the car will randomly brake very hard as if someone was in front of me and slammed the brakes. It also happens very commonly, more common than tolerable. No warning beeps or chimes or any indication of anything event. I'm not sure if this is inspectable, I have brought the car to service a few times under warranty for unrelated issues. This problem is pretty much widespread across Tesla's autopilot system. This has happened many times, but the most dangerous one by far was on I-75 and slammed the brakes from 85 to 45-35 in a matter of seconds.

The car will brake seemingly for no reason while on Autopilot. The environment does not change at all, yet the car will randomly brake very hard as if someone was in front of me and slammed the brakes. It also happens very commonly, more common than tolerable. No warning beeps or chimes or any indication of anything event. I'm not sure if this is inspectable, I have brought the car to service a few times under warranty for unrelated issues. This problem is pretty much widespread across Tesla's autopilot system. This has happened many times, but the most dangerous one by far was on I-75 and slammed the brakes from 85 to 45-35 in a matter of seconds.

At highway speeds while using cruise control I experienced several times what is now being called phantom braking. I have ceased using the cruise control as this is a scary problem.

When driving on one way road and a vehicle is travel inbound. The vehicle will stop extremely hard without any notice of anyone or anything in front of me. Even when travel on a open highway the vehicle will sometime stop extremely hard and freak out like something is in front of me when their is nothing.

The Tesla model 3 has unexpectedly braked very hard with no traffic ahead of my vehicle. So fast and hard that seat belts had to restrain passengers. This has happened several times while the Autopilot is engaged. This usually is on a 2 lane road and there is traffic on the opposite side of the road. I have noticed if a semi-tractor trailer is approaching on the opposite side it happens 100 % of the time. The auto also steers hard to the right. This is very scary and a vehicles behind the Tesla have no warning either. I have almost been hit twice from behind. Makes a lot of angry drivers behind me. I have not used the feature in a month. I called Tesla and they said this was NORMAL. It never happened until a recent software update and then it started doing this all the time. Please help

The Tesla model 3 has unexpectedly braked very hard with no traffic ahead of my vehicle. So fast and hard that seat belts had to restrain passengers. This has happened several times while the Autopilot is engaged. This usually is on a 2 lane road and there is traffic on the opposite side of the road. I have noticed if a semi-tractor trailer is approaching on the opposite side it happens 100 % of the time. The auto also steers hard to the right. This is very scary and a vehicles behind the Tesla have no warning either. I have almost been hit twice from behind. Makes a lot of angry drivers behind me. I have not used the feature in a month. I called Tesla and they said this was NORMAL. It never happened until a recent software update and then it started doing this all the time. Please help

The Tesla model 3 has unexpectedly braked very hard with no traffic ahead of my vehicle. So fast and hard that seat belts had to restrain passengers. This has happened several times while the Autopilot is engaged. This usually is on a 2 lane road and there is traffic on the opposite side of the road. I have noticed if a semi-tractor trailer is approaching on the opposite side it happens 100 % of the time. The auto also steers hard to the right. This is very scary and a vehicles behind the Tesla have no warning either. I have almost been hit twice from behind. Makes a lot of angry drivers behind me. I have not used the feature in a month. I called Tesla and they said this was NORMAL. It never happened until a recent software update and then it started doing this all the time. Please help

On several occasions while driving in the highway with AutoPilot engaged for adaptive cruise control, the car has suddenly applied the brakes very hard when there were no hazards in my lane. This has occurred on curves in the road when oncoming traffic was detected in the other lane and also when there has been a vehicle stopped on the shoulder.

Car suddenly brakes, also known as Phantom Braking, when in Cruise Control. It does it mostly on 2 lane roads, but it has done it driving on wide open freeways too. It's bad. Makes me feel very unsafe.

The car has twice gone into emergency braking mode on the interstate for no good reason. One incident was as the car was approaching a dark shadow area under an overpass, and the other was in a construction zone and I have no idea what triggered it. In both cases if someone had been following closely I may have been in trouble.

When the vehicle is in autopilot at high speed, it breaks suddenly without any visible obstacles. This happens at Kraft once every 200 miles of highway driving with autopilot on. The speed drops suddenly from 75 mph to 40 mph.

When the vehicle is in autopilot at high speed, it breaks suddenly without any visible obstacles. This happens at Kraft once every 200 miles of highway driving with autopilot on. The speed drops suddenly from 75 mph to 40 mph.

With the Autopilot engaged on the freeway I have had several of these phantom braking experiences but last night I was lucky to avoid a accident with the car following me.. This happened at 74 miles per hour with the autopilot engaged the brakes slow me down to 60 miles per hour before I could disengage the autopilot.

I was driving my car and had it on autopilot. The road was empty and all of a sudden the car decided to apply brakes when nothing was infront of it. I was able to take control instantly to prevent a sudden stop however I was lucky there were no cars behind me

I was driving my car and had it on autopilot. The road was empty and all of a sudden the car decided to apply brakes when nothing was infront of it. I was able to take control instantly to prevent a sudden stop however I was lucky there were no cars behind me

When in Autopilot mode, the car will sporadically brake without any obstacles in front of it. This has occurred to me about half a dozen times. Always on the highway. Initially it would happen in the daytime near overpasses or when entering shade from a sunny area. Twice it occurred to me at night, on a well lit interstate in an urban area. This is often referred to as Phantom Breaking.

My 2021 Tesla model 3 has a issue of what is called Phantom Braking. On 2 lane undivided highways and on all types of roads the car will randomly slam on the brakes to what I assume is to prevent hitting a obstacle that doesn’t exist. The car will apply the brakes extremely fast and drop roughly 20 MPH or more in just a few seconds. I am unable to use cruise control on 2 lane highways because it slams on the brakes it seems like anytime it sees a dip in the road or a mailbox on the side of the road it triggers the emergency braking system. I feel lucky that no one has been behind me while these events have happened. It happens almost every time I drive the car. I have contacted Tesla about this issue and they say everything is fine and they would rather have a lot of false positives than to miss a actual event. I feel like it is a very unsafe feature and needs to be addressed because other manufacturers have this down with hardly any issues. This has been happening on the car since it was new and has not improved the car has 7500 miles on it.

My 2021 Tesla model 3 has a issue of what is called Phantom Braking. On 2 lane undivided highways and on all types of roads the car will randomly slam on the brakes to what I assume is to prevent hitting a obstacle that doesn’t exist. The car will apply the brakes extremely fast and drop roughly 20 MPH or more in just a few seconds. I am unable to use cruise control on 2 lane highways because it slams on the brakes it seems like anytime it sees a dip in the road or a mailbox on the side of the road it triggers the emergency braking system. I feel lucky that no one has been behind me while these events have happened. It happens almost every time I drive the car. I have contacted Tesla about this issue and they say everything is fine and they would rather have a lot of false positives than to miss a actual event. I feel like it is a very unsafe feature and needs to be addressed because other manufacturers have this down with hardly any issues. This has been happening on the car since it was new and has not improved the car has 7500 miles on it.

While driving on the highway without any cars in front of ours, three times the vehicle slammed on the emergency braking system and attempted to stop the car causing cars behind us to slam on their brakes to avoid hitting ours.

While driving on the highway without any cars in front of ours, three times the vehicle slammed on the emergency braking system and attempted to stop the car causing cars behind us to slam on their brakes to avoid hitting ours.

The car was on FSD jerked right toward a semi truck then jerked left toward the posts in the median as it was accelerating and FSD would not turn off. Was trying to control the car but it kept pushing and accelerating causing us to crash in to the median posts. Normally FSD would turn off if it was unsure but this day it would not. Plus other times it would phantom brake if we were on 2 lane road and met on oncoming large truck. We also had other times of phantom braking going over a hill. We have reported this to Tesla but no response yet. We owned this car 11 days when our wreck happened.

The car was on FSD jerked right toward a semi truck then jerked left toward the posts in the median as it was accelerating and FSD would not turn off. Was trying to control the car but it kept pushing and accelerating causing us to crash in to the median posts. Normally FSD would turn off if it was unsure but this day it would not. Plus other times it would phantom brake if we were on 2 lane road and met on oncoming large truck. We also had other times of phantom braking going over a hill. We have reported this to Tesla but no response yet. We owned this car 11 days when our wreck happened.

Similar to the reporting of others, I wanted to confirm that we had a problem with our Tesla 3 auto-pilot feature erroneously triggering emergency braking by misinterpreting oncoming traffic. This happened twice in a similar situation. While driving on a single-lane highway in auto-pilot, the car abruptly braked when a semi-truck passed in the opposite lane. This sudden deceleration could have lead to a rear-end collision but fortunately the driver behind had left enough breaking space. The same thing occurred again on the same road - also with a semi-truck in the opposing lane. This time, vigilant that the auto-pilot might be malfunctioning, the sudden breaking was quickly overcome by pressing the accelerator. There is no doubt on our end that the current version of the auto-pilot will trigger emergency braking mistakenly based on misinterpreting opposing traffic.

Similar to the reporting of others, I wanted to confirm that we had a problem with our Tesla 3 auto-pilot feature erroneously triggering emergency braking by misinterpreting oncoming traffic. This happened twice in a similar situation. While driving on a single-lane highway in auto-pilot, the car abruptly braked when a semi-truck passed in the opposite lane. This sudden deceleration could have lead to a rear-end collision but fortunately the driver behind had left enough breaking space. The same thing occurred again on the same road - also with a semi-truck in the opposing lane. This time, vigilant that the auto-pilot might be malfunctioning, the sudden breaking was quickly overcome by pressing the accelerator. There is no doubt on our end that the current version of the auto-pilot will trigger emergency braking mistakenly based on misinterpreting opposing traffic.

Driving on an open 2 lane highway between Lecanto and Gainesville, car slammed on the brakes while in autopilot. There were no obstructions or other reason to stop.

Driving on an open 2 lane highway between Lecanto and Gainesville, car slammed on the brakes while in autopilot. There were no obstructions or other reason to stop.

Phantom braking while using cruise control and/or auto pilot. This is most disconcerting at highway speeds especially when it sounds safety alarms most times while doing it

Phantom braking while using cruise control and/or auto pilot. This is most disconcerting at highway speeds especially when it sounds safety alarms most times while doing it

I owned this 2021 Tesla Model 3 for six months. On many occasions, while using the adaptive cruise control mainly on two-lane roads at various speeds between 35-55 MPH, the car would unexpectedly rapidly apply the brakes when there was no hazard present. This almost got me in a road rage situation, as the following vehicle thought that I intentionally brake-checked them. I discontinued using the system. I no longer on this vehicle, but can provide new owner’s information if needed.

On multiple occassions, while using the adaptive cruise feature, (but not the auto steer feature) the vehicle will suddenly slow down to the speed limit, without any warning or notification that anything has changed. This happens in multiple occasions on the Long Island Expressway between exits 48 adn 32. The vehicle slows by itself for no reason at all. fb

The contact owns a 2021 Tesla Model 3. The contact stated that while driving at various highway speeds with the adaptive cruise control activated the braking system would erroneously activate causing the vehicle speed to suddenly be reduced. The contact indicated that the failure had occurred on multiple occasions and speed reduction was significant. The cause of the failure was not determined. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 1,400.

Mileage: 1,400

When the vehicle is in cruise control mode, the brakes will engage for no apparent reason. It has happened three times. The brakes will engage then release causing the car to quickly decelerate and disengage the cruise control. It has only happened on the freeway when driving, no other cars are in front or braking in front of the car. There is no apparent reason for the braking other then cruise control mistake.

I've owned this vehicle since October of 2021, and wish to provide examples of my own issues concerning phantom braking while using the Autopilot/Traffic Aware Cruise Control Feature on my Model 3 Standard Range Plus. Having now put roughly 6,000 miles on the vehicle in the conditions found in western Maryland/south-central Pennsylvania, I've been able to find these consistencies concerning phantom braking: On an undivided 2-lane highway: 1. When it's a dashed line that allows for passing on long straight stretches, more phantom braking incidents occur than when the center line is double-solid. Those are usually 5-15mph braking events until the opposing vehicle has passed without incident. 2. When going down/up a gently sloping hill and the car is unable to see the lines far enough ahead because of a turn. If a vehicle is coming the opposite direction, the car appears to believe that the opposing vehicle is in your lane and coming right at your vehicle. These are usually the hardest phantom braking events. 3. When vehicles are parked parallel along the side of an undivided road, and especially at night, the car appears to think these are threats to its/my safety. I say that they appear worse at night, as when my headlights cause the rear taillights/reflectors to visually brighten, the incidents are more frequent. These vary wildly, from having no braking events to hard braking events. On a divided highway: The most consistent issues in my case happen when going up/down mountains. A highway turns into 3 lanes, with the rightmost lane for large, heavy trucks that are going slower than the rest of traffic. If you are in the middle lane, and that slow truck is using it's 4-way blinkers, Autopilot/TACC appears to see it as an emergency vehicle, and heavily brakes. I've gotten in the habit of always using the leftmost lane to avoid this issue. The trucks are clearly in another lane, well out of mine, and are moving, even if slower than the rest of traffic.

On 2/17/22 at appx. 8:08am with adaptive cruise control engaged the collision warning alarm chimed and the car beaked quickly for 50mph to 30 mph. There was an SUV in the oncoming traffic lane. This has happened several times. The system sometimes does not recognize that approaching vehicles are in a correct lane. This happens with larger approaching vehicles such as large SUVs and trucks. Additionally we have been getting many (dozens) of dashboard error warnings that one or more of the cameras are blocked or blinded. As Tesla has chosen to delete lidar and depend solely on cameras as safety system detectors this affects Adaptive Cruise Control, Automatic Emergency Braking, Blind spot warning, Forward Collision Warning, Lane Departure Warning, Lane Keeping Assistance, and cross traffic alert.

During use of the autopilot system on my trip from wilmington DE to GA and vice versa, at nurmeous times the car would automatic hard break dropping the speed by 20mph+ stating there are emergency vehicles while there wasn't any or any vehicle in front on the highway, and at various other time during the drive it would auto slow down 1-2 mph for no reason both causing unsafe driving conditions. Each day this happened over 10+ times

The contact owns a 2021 Tesla Model 3. The contact stated while driving at 55 MPH with the Forward Collision Adaptive cruise control engaged, the driver was approaching a railroad overpass and the vehicle stopped independently. The cruise control was disengaged and the vehicle operated as designed. The contact stated that the failure was intermittent. The contact stated that the Adaptive Cruise Control signal recognition was not functioning as designed. The contact reached out to the manufacturer and provided an online form describing the failure. The manufacturer confirmed that the issue was a known failure and that a fix was in the process. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 50.

Mileage: 50

During the use of the Autopilot feature in Tesla, the car suddenly starts braking with no obstacles. This can cause a safety incident on the road when there are vehicles behind and the Tesla suddenly stops for no apparent reason.

I have owned my Tesla Model 3 with FSD for 9 months and have over 10000 miles of driving in the city and highway. Ghost braking has occurred on many occasions and is worse on two lane highways with commercial trucks approaching in the opposite oncoming lane. The vehicle inappropriately and suddenly decelerates from 65 mph to 40 mph. I have had to stop using FSD and adaptive cruise control because of this erratic issue. Recent trip using cruise control (not FSD) on a 4 lane divided highway (I-70 eastbound) there was no surrounding vehicles, no blind hills, obstacles or inclement weather and the vehicle went from 80 mph to 56 mph within a few seconds, requiring me to disengage the cruise control and accelerate to avoid being rear ended. The cruise control and FSD are dangerous and life threatening due to this erratic problem, please start an investigation and recall to remedy these issues before drivers and passengers are injured or killed.

Phantom breaking. Severe application of brakes resulting in up to but not limited to 25 mph decrease of speed when semis are oncoming in other lane. Other times without any vehicles around.

Phantom breaking. Severe application of brakes resulting in up to but not limited to 25 mph decrease of speed when semis are oncoming in other lane. Other times without any vehicles around.

The contact owns a 2021 Tesla Model 3. The contact stated that while driving at an undisclosed speed with the cruise control engaged, the vehicle would independently brake without warning. The contact stated that he saw an article that referred to the failure as “Phantom Braking”. Neither the dealer nor the manufacturer was notified of the failure. The vehicle had yet to be diagnosed or repaired. The failure mileage was approximately 2,000.

Mileage: 2,000

While driving on autopilot on the highway at about 65MPH the car applied the brakes for no reason. The car descends in speed aggressively and can easily cause a rear end collision. This has happened randomly before as well.

1) When using autosteer and/or adaptive cruise control the vehicle randomly brakes and very rapidly decelerates. This has occurred on at least a dozen drives, beginning on my first long road trip after owning the car for 2 months. 2) If another vehicle is following my car, we could very easily get into a rear-end accident. This happens at high speeds going from 75mph to 55mph in seconds, so the chance of a collision is high. I also become very scared when this happens which temporarily takes my attention away from driving. 3) No the problem has not been reproduced by a dealer. I live 150 miles from the nearest Tesla dealership. 4) No the vehicle has not been inspected. 5) No warning signs which is why this "phantom braking" is SO TERRIFYING.

This car has "Phantom braking" issue. As the autopilot was on, on the freeway, the speed was around 70 mph, it brakes without any obstacles or car in the front, just a not very even road. Speed dropped suddenly, felt like an emergency. This scared me to use autopilot. And phantom braking happened several times. When I raised this issue to Tesla dealership for repair, the answer is - "software updates constantly make autopilot better, and it is in beta and driver agree to it every time driver engage autopilot. Tesla will never force you to use autopilot and can drive normal like any other car."

When car is driving on autopilot on highway, it slams on the brakes on its own. This has happened 2-3 times.

When car is driving on autopilot on highway, it slams on the brakes on its own. This has happened 2-3 times.

Phantom braking with autopilot on one lane highways when larger vehicles approach the vehicle in the other lane. This is easily repeatable on any one lane road, happens literally all the time. My older Tesla that still had radar never had this problem. This is a problem with Teslas vision only approach to cruise control

Phantom braking with autopilot on one lane highways when larger vehicles approach the vehicle in the other lane. This is easily repeatable on any one lane road, happens literally all the time. My older Tesla that still had radar never had this problem. This is a problem with Teslas vision only approach to cruise control

The automatic cruise control will 'phantom brake' and is unusable on the 2 lane highways near my home. Sometimes the braking is extremely abrupt and if a car was following it could create a very dangerous situation. The car brakes unexpectedly when traffic is coming the other way or of there's an undulation in the road.

The automatic cruise control will 'phantom brake' and is unusable on the 2 lane highways near my home. Sometimes the braking is extremely abrupt and if a car was following it could create a very dangerous situation. The car brakes unexpectedly when traffic is coming the other way or of there's an undulation in the road.

In cruise control or autopilot, the car will apply brakes randomly and without warning. It is extremely scary to have it slam on the brakes for no reason. Luckily no one was behind me, so I wasn’t in danger of causing an accident, but the problem is constant enough I cannot use the cruise control nor autopilot.

While traveling at highway speeds, the vehicle arbitrarily applies the brakes when adaptive cruise is being used. It is scary to me and my passengers, and I am afraid to use this feature.

While in Autopilot, with adaptive cruise and lane assist active, the car will randomly brake despite there being no object or vehicle in front of it that would require braking. It has happened over a dozen times over the past 6 months, primarily on two-lane country roads (where I've stopped using Autopilot) but also at least three times on the expressway. Despite no potential collision incidents ahead, the car abruptly braked and I had to disengage Autopilot to resume normal speed. Luckily in all cases there was no car directly behind me. On more narrow two-lane roads, I know twice the car has perceived a stopped car on the shoulder as a hazard and has abruptly braked, but most incidents have been on open roads with no obvious hazards ahead.

I was driving on highway 70 in Florida which is one lane in each direction. When in cruise control the car braked on its own multiple times when car or truck approaced from opposite direction

I was driving on highway 70 in Florida which is one lane in each direction. When in cruise control the car braked on its own multiple times when car or truck approaced from opposite direction

The contact owns a 2021 Tesla Model 3. The contact stated while driving at various speeds, the vehicle would brake without warning while autopilot mode was engaged. The vehicle was not taken to a local dealer to be inspected. The manufacturer was informed of the failure and the contact was awaiting a response. The failure mileage was unavailable.

My Tesla in auto pilot brakes randomly while on the highway or in a lanes roadway. I almost got rear ended last week.

When using the traffic-aware cruise system on the interstate, the car will sometimes dramatically reduce its speed (within seconds)/apply the brakes for what appears to be no reason at all (often referred to as phantom braking). The most recent incident occurred while accelerating up an interstate entrance ramp. The car had reached the target speed of 75 MPH before suddenly braking and reducing the speed down to around 65MPH before I hit the accelerator to prevent it from slowing down any further. Within a few seconds, the care went back to accelerating normally again. There were no warning indicators on the display that would explain why the vehicle slowed down. I've noticed that sometimes there are certain spots on the interstate where this behavior will happen repeatedly. I will be cruising along at a set speed and the vehicle will suddenly slow down for a few seconds then continue back at the set cruise speed. This occurs when there are no other vehicles or objects in front of the car. Available for inspection upon request: Yes Safety Risk: Rapid deceleration on the interstate at high speeds risks a rear end collision Reproducible: Yes, but it seems to occur mostly at random, has not been confirmed by the dealer Inspected By Others: No Warning Lamps/Messages: Only once has it generated a pre-collision warning, all other instances generate no warning/alert Only once have I had the system falsely generate a pre-collision warning and dramatically slow the vehicle while the vehicle had just entered the interstate from an entrance ramp (traveling at 70 MPH) and no other objects or vehicles were around me.

When using the traffic-aware cruise system on the interstate, the car will sometimes dramatically reduce its speed (within seconds)/apply the brakes for what appears to be no reason at all (often referred to as phantom braking). The most recent incident occurred while accelerating up an interstate entrance ramp. The car had reached the target speed of 75 MPH before suddenly braking and reducing the speed down to around 65MPH before I hit the accelerator to prevent it from slowing down any further. Within a few seconds, the care went back to accelerating normally again. There were no warning indicators on the display that would explain why the vehicle slowed down. I've noticed that sometimes there are certain spots on the interstate where this behavior will happen repeatedly. I will be cruising along at a set speed and the vehicle will suddenly slow down for a few seconds then continue back at the set cruise speed. This occurs when there are no other vehicles or objects in front of the car. Available for inspection upon request: Yes Safety Risk: Rapid deceleration on the interstate at high speeds risks a rear end collision Reproducible: Yes, but it seems to occur mostly at random, has not been confirmed by the dealer Inspected By Others: No Warning Lamps/Messages: Only once has it generated a pre-collision warning, all other instances generate no warning/alert Only once have I had the system falsely generate a pre-collision warning and dramatically slow the vehicle while the vehicle had just entered the interstate from an entrance ramp (traveling at 70 MPH) and no other objects or vehicles were around me.

When using the traffic-aware cruise system on the interstate, the car will sometimes dramatically reduce its speed (within seconds)/apply the brakes for what appears to be no reason at all (often referred to as phantom braking). The most recent incident occurred while accelerating up an interstate entrance ramp. The car had reached the target speed of 75 MPH before suddenly braking and reducing the speed down to around 65MPH before I hit the accelerator to prevent it from slowing down any further. Within a few seconds, the care went back to accelerating normally again. There were no warning indicators on the display that would explain why the vehicle slowed down. I've noticed that sometimes there are certain spots on the interstate where this behavior will happen repeatedly. I will be cruising along at a set speed and the vehicle will suddenly slow down for a few seconds then continue back at the set cruise speed. This occurs when there are no other vehicles or objects in front of the car. Available for inspection upon request: Yes Safety Risk: Rapid deceleration on the interstate at high speeds risks a rear end collision Reproducible: Yes, but it seems to occur mostly at random, has not been confirmed by the dealer Inspected By Others: No Warning Lamps/Messages: Only once has it generated a pre-collision warning, all other instances generate no warning/alert Only once have I had the system falsely generate a pre-collision warning and dramatically slow the vehicle while the vehicle had just entered the interstate from an entrance ramp (traveling at 70 MPH) and no other objects or vehicles were around me.

My 2021 Tesla model 3 when on auto pilot or adaptive cruise control some times on a 2 lane road and meeting a large truck in the on coming lane will suddenly apply the brakes. Another case is where there are heavy shadows across the road. Should someone be following closely there could be a rear end collision. Perhaps this problem started after Tesla stopped using radar on the 2021 Model 3 teslas Anyway, this is very concerning to me and my passengers.

I was driving along a 2 lane road around 1:00 PM. It is a bright sunny day. I put the car into TACC (Traffic Aware Cruise Control) and set a speed of 70MPH in a 65 zone. Once a car came a certain distance away traveling in the opposite lane towards my vehicle the car would brake slightly and drop my speed below 70. I corrected the speed drop by applying the accelerator. Again within a few minutes the same behavior occurred when a vehicle in the opposite lane came into view the car braked and dropped my speed by 5-10 miles an hour before I was able to correct and accelerate again to cruising speed. This happened continuously almost every time a car was visible in the other lane until I turned it off. I attempted to use TACC again on the way home on the same ride in the evening and the same behavior occurred where the car would brake suddenly even though nothing was passing in front of the vehicle that would require a stop. I use TACC on freeways regularly and also use Autopilot and it generally does not brake when it doesn't need to, but it still can occur on freeways. The most dangerous use is on 2-way roads. It is unusable and constantly brakes the car when another car approaches in the other lane. This braking is sudden and unexpected and could lead to a rear end collision. There is not an option to use cruise control that doesn't cause this problem. I am taking the vehicle to Tesla 2/17 and will have them inspect it. There are no warnings or messages on the vehicle saying there is a problem.

I was driving along a 2 lane road around 1:00 PM. It is a bright sunny day. I put the car into TACC (Traffic Aware Cruise Control) and set a speed of 70MPH in a 65 zone. Once a car came a certain distance away traveling in the opposite lane towards my vehicle the car would brake slightly and drop my speed below 70. I corrected the speed drop by applying the accelerator. Again within a few minutes the same behavior occurred when a vehicle in the opposite lane came into view the car braked and dropped my speed by 5-10 miles an hour before I was able to correct and accelerate again to cruising speed. This happened continuously almost every time a car was visible in the other lane until I turned it off. I attempted to use TACC again on the way home on the same ride in the evening and the same behavior occurred where the car would brake suddenly even though nothing was passing in front of the vehicle that would require a stop. I use TACC on freeways regularly and also use Autopilot and it generally does not brake when it doesn't need to, but it still can occur on freeways. The most dangerous use is on 2-way roads. It is unusable and constantly brakes the car when another car approaches in the other lane. This braking is sudden and unexpected and could lead to a rear end collision. There is not an option to use cruise control that doesn't cause this problem. I am taking the vehicle to Tesla 2/17 and will have them inspect it. There are no warnings or messages on the vehicle saying there is a problem.

The issue is "Phantom Breaking" while using "Traffic Aware Cruise Control" and "Auto Pilot" The car suddenly breaks for no reason when using either mode listed above. It happens more frequently with sun and shadows than on overcast days. It's so upsetting that I don't try to use either with passengers onboard or when traffic is following close behind.

While using adaptive cruise control on freeway my suddenly reduces speed significantly quickly as if it’s trying to stop. I always fear car behind me is going to bump into my car. Also it hurts passengers into the car when it happens.

When driving with Traffic Aware Cruise Control and Autopilot the car will randomly apply the brakes in causing a severe drop in speed frequently from 70 MPH to less than 50 extremely quickly. This happens primarily on undivided highways with no pattern - sometimes when other vehicles are approaching, no distinction between large or small or color, but most frequently and most violently occurs when no vehicles or obstacles are present. This sudden drop and alarm notification from the car can cause me to quickly jerk the steering wheel in response and potentially losing vehicle control. In some occasions this happened at highway speeds with people behind me almost causing a rear-end collision. I put in a repair notice with Tesla and the response was that the TACC and Autopilot are beta and upon review of trip logs they noticed no faults and closed the repair request. This feature is unsafe and since a cruise control is a necessity for my frequent longer trips, having a car without a functioning cruise control is beyond inconvenient, it is a safety issue. The breaking has also occurred on divided multi-lane roads but less frequently and with less severity.

When driving with Traffic Aware Cruise Control and Autopilot the car will randomly apply the brakes in causing a severe drop in speed frequently from 70 MPH to less than 50 extremely quickly. This happens primarily on undivided highways with no pattern - sometimes when other vehicles are approaching, no distinction between large or small or color, but most frequently and most violently occurs when no vehicles or obstacles are present. This sudden drop and alarm notification from the car can cause me to quickly jerk the steering wheel in response and potentially losing vehicle control. In some occasions this happened at highway speeds with people behind me almost causing a rear-end collision. I put in a repair notice with Tesla and the response was that the TACC and Autopilot are beta and upon review of trip logs they noticed no faults and closed the repair request. This feature is unsafe and since a cruise control is a necessity for my frequent longer trips, having a car without a functioning cruise control is beyond inconvenient, it is a safety issue. The breaking has also occurred on divided multi-lane roads but less frequently and with less severity.

When driving with Traffic Aware Cruise Control and Autopilot the car will randomly apply the brakes in causing a severe drop in speed frequently from 70 MPH to less than 50 extremely quickly. This happens primarily on undivided highways with no pattern - sometimes when other vehicles are approaching, no distinction between large or small or color, but most frequently and most violently occurs when no vehicles or obstacles are present. This sudden drop and alarm notification from the car can cause me to quickly jerk the steering wheel in response and potentially losing vehicle control. In some occasions this happened at highway speeds with people behind me almost causing a rear-end collision. I put in a repair notice with Tesla and the response was that the TACC and Autopilot are beta and upon review of trip logs they noticed no faults and closed the repair request. This feature is unsafe and since a cruise control is a necessity for my frequent longer trips, having a car without a functioning cruise control is beyond inconvenient, it is a safety issue. The breaking has also occurred on divided multi-lane roads but less frequently and with less severity.

While using either the Autopilot or Adaptive Cruise Control, the car will unexpectedly brake for no reason. This happens almost every single time the car is using either of the two features. Sometimes it brakes so hard it creates a safety issue for the cars traveling behind.

While using either the Autopilot or Adaptive Cruise Control, the car will unexpectedly brake for no reason. This happens almost every single time the car is using either of the two features. Sometimes it brakes so hard it creates a safety issue for the cars traveling behind.

I was driving 72 mph on Ca State Hwy 99 in the #2 lane. The closest car to me (front) was about 100 yards away in the fast lane #3. I had cruse control on when the vehicle applied its emergency braking bring me down to 54 mph in about a second. This caused the truck behind me to almost hit me. He then went around my vehicle and slammed on his breaks thinking I did it on purpose.

I was driving 72 mph on Ca State Hwy 99 in the #2 lane. The closest car to me (front) was about 100 yards away in the fast lane #3. I had cruse control on when the vehicle applied its emergency braking bring me down to 54 mph in about a second. This caused the truck behind me to almost hit me. He then went around my vehicle and slammed on his breaks thinking I did it on purpose.

On several occasions since June 2021, my Tesla Model 3 has suddenly braked hard on its own while the Autopilot cruise control function was engaged (phantom braking). There has been no apparent reason for the sudden braking incidents, and they have happened at highway speeds. When I reported these incidents to my Tesla dealer, I was told that Tesla was aware of this problem with Tesla Model 3 vehicles, and that Tesla was working on finding a solution. Yet the problem has continued, and occurred again as recently as yesterday

I was driving the vehicle on a highway at night and there were no other vehicles around. I engaged the adaptive cruise control to set at 75mph. Suddenly the vehicle applied the break very hard on its own and slowed down to less than 30mph. It was very scary and unsettling. This happened on at least 2 separate occasions within about a month and both times there were no other cars nearby.

Both the adaptive cruise control and the Autopilot are dangerously defective. The car will brake without any valid reason. If put into use, the phantom braking will occur several times per hour, regardless of speed. Other drivers have honked at us after nearly rear-ending at highway speeds. We have been unable to use either feature. The car has been back to the dealership in Vallejo CA. Hours of data log have been given to Tesla. We have loaded every software update including the most recent. Nothing helps. I have given Tesla a list of the situations that seem to cause the invalid braking. These include: Red & Blue markers in Nevada that mark highway cross-overs for their highway patrol. Large highway signs at the outside of a curve. K-Rail at the outside of a curve, Black tar sealant lines on the highway, Overhead Highway signs as the car is coming up a rise, and many more. We actually made a game of predicting the phantom braking and were right over 50% of the time. As it is, it is unsafe and unuseable. Pending a fix, they should at the very least give drivers the option to revert to plain, old dumb cruise control. It would be far safer. The "Autopilot" feature is even worse than the Adaptive Cruise control. It freaks out at corners with K-rail and when you do see a problem that hasn't registered with Autopilot (road hazard) the Autopilot fights you trying to take control. I almost crashed into a bumper that was on the highway.

My vehicle will be in Autopilot mode on a two lane highway, when suddenly it will brake very hard, so hard that I have to hit the gas to avoid a collision from the car behind me. It also does this on interstates when approaching and passing a tractor trailer. It seems to read the shadow on the road cast by the truck as an obstacle and brakes very suddenly. Taking me from 65mph to much slower in a second or two. It seems very dangerous. This has happened at least 100 times in the past few months.

While autopilot was engaged at a speed of around 75 mph, the emergency brakes automatically engaged thought there were no impediments on the roadway. The closest car to the front was too far ahead for it to register on the screen. In another instance the same action occurred but as the car was going under an overpass. It was a sunny day so I assumed the shadows created by the overpass triggered the emergency braking. My spouse also reported two instances that this occurred to her while she was driving alone.

While driving with cruise control engaged the vehicle will suddenly brake without reason. I have almost been rear-ended multiple times. My wife had things thrown off of seats and onto the floorboard. When I wrote to Tesla they said this can be normal and gave me excuses including lighting problems and semis too close. Frequently this happens with no one around with no lighting problems.

Phantom braking. Tesla Service asked me to record times of incidents. I drove cross country and there was an incident almost every 10 minutes. Most commonly when going over a hill or passing by a truck, the car will stomp on the brakes for no reason, causing danger to myself and other drivers.

While using cruise control on a highway, the car suddenly braked for no reason that I could detect. This has happened 3 or 4 times and I have stopped using cruise control for fear it will reoccur. I reported this to Tesla but was told I would need to take the car to Santa Barbara. I live 90 miles north and traveling to Santa Barbara is not feasible right now. You ask for dates below and I don’t know the dates other than that the incidents occurred between October and December 2021.

While using cruise control on a highway, the car suddenly braked for no reason that I could detect. This has happened 3 or 4 times and I have stopped using cruise control for fear it will reoccur. I reported this to Tesla but was told I would need to take the car to Santa Barbara. I live 90 miles north and traveling to Santa Barbara is not feasible right now. You ask for dates below and I don’t know the dates other than that the incidents occurred between October and December 2021.

The Traffic Aware Cruise Control and Auto-Steer are easily confused so that the vehicle does unexpected things like suddenly slowing down, even heavy breaking, or disengage steering control while in a corner next to semi-truck. This commonly happens when driving at higher speeds, 70 MPH, on the freeway. Suddenly slowing down at such a high speed is dangerous when there are cars following me as they don’t expect a sudden slow down when they can clearly see there is no reason for our car slamming on the brakes. In my observation this problems occur most frequently at higher speeds and when approaching a semi truck or overpass. It is especially worse when going through a corner. Sometimes the center barrier seems to cause sudden slowing down. Also, driving in a corner on the freeway while driving next to a semi truck has caused the auto steer to suddenly disengage which in itself was not dangerous since I had both hands on the steering wheel, it certainly startled me which could potentially be dangerous.

PHANTOM BRAKING When cruise control is engaged (not auto steer or full self driving) the vehicle will intermittently slow down or apply corrective braking when no hazard exists. This happens more frequently on 2 lane roads but also happens occasionally on multi-lane freeways. On a 2 lane road, my vehicle will either slow down, brake or break HARD when anything larger than a SUV is coming from the other direction at normal speeds and in his lane. I have also experienced this when there is nobody for 1+ mile in front of behind me. If there are cars behind me, I find myself covering the accelerator and ready to floor it in case my car suddenly slams on the breaks. This make cruise control very unsafe and stressful. I have another Tesla vehicle doing the same thing and will post separately on that one. Thank you.

PHANTOM BRAKING When cruise control is engaged (not auto steer or full self driving) the vehicle will intermittently slow down or apply corrective braking when no hazard exists. This happens more frequently on 2 lane roads but also happens occasionally on multi-lane freeways. On a 2 lane road, my vehicle will either slow down, brake or break HARD when anything larger than a SUV is coming from the other direction at normal speeds and in his lane. I have also experienced this when there is nobody for 1+ mile in front of behind me. If there are cars behind me, I find myself covering the accelerator and ready to floor it in case my car suddenly slams on the breaks. This make cruise control very unsafe and stressful. I have another Tesla vehicle doing the same thing and will post separately on that one. Thank you.

PHANTOM BRAKING When cruise control is engaged (not auto steer or full self driving) the vehicle will intermittently slow down or apply corrective braking when no hazard exists. This happens more frequently on 2 lane roads but also happens occasionally on multi-lane freeways. On a 2 lane road, my vehicle will either slow down, brake or break HARD when anything larger than a SUV is coming from the other direction at normal speeds and in his lane. I have also experienced this when there is nobody for 1+ mile in front of behind me. If there are cars behind me, I find myself covering the accelerator and ready to floor it in case my car suddenly slams on the breaks. This make cruise control very unsafe and stressful. I have another Tesla vehicle doing the same thing and will post separately on that one. Thank you.

“Phantom emergency braking” problem while cruise control engaged. Occurrences are unpredictable as to causation. Examples of emergency braking include: - no apparent reason: no vehicles nearby, no obstacles in road - cresting a hill - bridge overpass - highway overhead signage - vehicles on side of road - vehicles crossing highway but at a distance that is not dangerous - passing large vehicles on highway This problem causes anxiety driver. could likely create a very dangerous scenario for vehicles following behind should emergency braking engage

“Phantom emergency braking” problem while cruise control engaged. Occurrences are unpredictable as to causation. Examples of emergency braking include: - no apparent reason: no vehicles nearby, no obstacles in road - cresting a hill - bridge overpass - highway overhead signage - vehicles on side of road - vehicles crossing highway but at a distance that is not dangerous - passing large vehicles on highway This problem causes anxiety driver. could likely create a very dangerous scenario for vehicles following behind should emergency braking engage

Since we received the car in November 2021 on two lane roads when meeting large profile vehicles like semi's or UPS it gives us a collision warning and hard brake, which in heavy traffic scares us of a rear end collision. It happens on both cruise and autopilot. Have been in touch with Tesla and they say everything is working correctly. They say they are trying to correct the problem but It's been four months and we are still scared to use the cruise on two lane roads.

In the process of slowing down for traffic, the brake pedal floored by itself and the brakes locked. There was no longer any contact between the foot and brake pedal. If not for the brake locking, the car would have been able to stop in time and avoid a rear end collision.

I was driving down the freeway at highway speeds. A motorcycle passed me in the left lane. My car sudden slammed on the brakes at freeway speeds and if a car was following me closely I would have been hit. The motorcycle did not cross my path and I was in no danger of hitting it. I was using cruise control at the time. This has happened more than once. Usually it is when a motorcycle is around. I have stopped using cruise control if I see a motorcycle on the road.

I was driving down the freeway at highway speeds. A motorcycle passed me in the left lane. My car sudden slammed on the brakes at freeway speeds and if a car was following me closely I would have been hit. The motorcycle did not cross my path and I was in no danger of hitting it. I was using cruise control at the time. This has happened more than once. Usually it is when a motorcycle is around. I have stopped using cruise control if I see a motorcycle on the road.

I was driving down the freeway at highway speeds. A motorcycle passed me in the left lane. My car sudden slammed on the brakes at freeway speeds and if a car was following me closely I would have been hit. The motorcycle did not cross my path and I was in no danger of hitting it. I was using cruise control at the time. This has happened more than once. Usually it is when a motorcycle is around. I have stopped using cruise control if I see a motorcycle on the road.

I received delivery of a Tesla Model 3 Long Range vehicle on Oct 25, 2021. On nearly every occasion that I use the “autopilot” cruise control feature, one or more phantom braking events occur. When this happens, my vehicle decelerates rapidly and without warning with enough force to thrust my head and upper torso forward. In all cases, there is nothing in the road and no perceivable road condition to warrant this behavior. Fortunately, no one has been close behind me yet when this has occurred since it would surely result in a rear end collision. There appears to be no consistent pattern: it happens on sunny and cloudy days; day and night; highway and surface streets. I have gotten into the habit of leaving my foot resting gently on the accelerator when in autopilot mode in order to react quickly to these events and hopefully avoid a collision. On Dec 17, 2021 I mentioned this issue during a service appointment at my local Tesla dealership. The response was that this was a common and known problem with Model 3’s and would be hopefully worked out in future software updates as the system “learns”. Four software updates later, the problem has not been resolved and in fact seems to be occurring more frequently. I believe this phantom braking problem is a serious safety issue that Tesla should immediately address.

I received delivery of a Tesla Model 3 Long Range vehicle on Oct 25, 2021. On nearly every occasion that I use the “autopilot” cruise control feature, one or more phantom braking events occur. When this happens, my vehicle decelerates rapidly and without warning with enough force to thrust my head and upper torso forward. In all cases, there is nothing in the road and no perceivable road condition to warrant this behavior. Fortunately, no one has been close behind me yet when this has occurred since it would surely result in a rear end collision. There appears to be no consistent pattern: it happens on sunny and cloudy days; day and night; highway and surface streets. I have gotten into the habit of leaving my foot resting gently on the accelerator when in autopilot mode in order to react quickly to these events and hopefully avoid a collision. On Dec 17, 2021 I mentioned this issue during a service appointment at my local Tesla dealership. The response was that this was a common and known problem with Model 3’s and would be hopefully worked out in future software updates as the system “learns”. Four software updates later, the problem has not been resolved and in fact seems to be occurring more frequently. I believe this phantom braking problem is a serious safety issue that Tesla should immediately address.

The automatic braking system performs pretty well on interstate highways. However, on two lane highways and secondary roads, heavy braking occurs for no apparent reason and with no warning resulting in several near misses for rear end collisions. I can solve the problem by not using cruise control; but, cruise control prevents me from unintentionally speeding. Either this unintentional heavy braking needs to be technologically resolved and/or I need to be provided with the option to switch to conventional cruise control in which I set the speed and determine when the cruise control is deactivated. THIS ISSUE HAS OCURRED DOZENS OF TIMES DURING MY 5 MONTHS AND ~10,000 MILE OWNERSHIP.

Phantom braking. The Tesla brakes without warning or provocation when on cruise control. On two lane roads brakes deploy forcefully every time a semi truck is traveling in the on coming lane. It does not have to be on a curve. It is every time a large truck is in the opposing lane. On 4 lane divided highways, it will forcefully brake (from 75 mph down to 40 mph in seconds) climbing small hills, patches of tar on the roads, shadows, off ramps, side roads and for no apparent reason. I have almost been rear ended when a car is following closely and it happens. I have recorded these incidents , reported to Tesla, taken the vehicle for diagnostics and they have no answer and imply that occasionally it may happen however, it should not be an issue. IT IS A DANGEROUS PROBLEM and an accident waiting to cause serious injury. I drive daily with my job and it happens every day.

Cruise control will slow abruptly without notification or apparent reason. Driving in the middle of the desert on an interstate with cruise control activated and the vehicle will suddenly apply emergency braking for no apparent reason. No other vehicles in close proximity. No crossroads, overpasses or entry/exit ramps in close proximity. Braking event occurs every time cruise control is initiated and occurs several times in one session. This is a critical safety hazard and needs to be addressed immediately. If a large truck was following close behind, they would not be able to slow in time which could have deadly consequences. Tesla shows no concern to fix this critical flaw in an expeditious manner. This needs to be investigated and corrected immediately before someone has to pay the ultimate price.

While on autopilot I experience regular abrupt phantom breaking around semi trucks. This has nearly caused several accidents. I will be going from 60 mph to nearly full stop. This is incredibly unsafe and I no longer feel comfortable using this feature around semi trucks.

While on autopilot I experience regular abrupt phantom breaking around semi trucks. This has nearly caused several accidents. I will be going from 60 mph to nearly full stop. This is incredibly unsafe and I no longer feel comfortable using this feature around semi trucks.

While on autopilot I experience regular abrupt phantom breaking around semi trucks. This has nearly caused several accidents. I will be going from 60 mph to nearly full stop. This is incredibly unsafe and I no longer feel comfortable using this feature around semi trucks.

Forward Collision Warning and Automatic Emergency Braking system failed/malfunctioned. The car is in a Tesla authorized body shop for inspection. The airbag deployed and prevented any injury but the accident did put my life and others at risk. The car was inspected by Tesla's authorized body shop. There was no warning lamps, messages, or other symptoms of the problem prior to the failure. The car was brand new, and I believe a possible explanation is Tesla taking out the radar and replacing it with Tesla vision. I tried to contact Tesla for an investigation but no response. I received a 30k bill to fix the car, and Tesla did not take any responsibility. Here is the footage: https://www.dropbox.com/s/sat1w5i0gl6bwsr/2021-12-20_10-56-45-front.mp4?dl=0

Forward Collision Warning and Automatic Emergency Braking system failed/malfunctioned. The car is in a Tesla authorized body shop for inspection. The airbag deployed and prevented any injury but the accident did put my life and others at risk. The car was inspected by Tesla's authorized body shop. There was no warning lamps, messages, or other symptoms of the problem prior to the failure. The car was brand new, and I believe a possible explanation is Tesla taking out the radar and replacing it with Tesla vision. I tried to contact Tesla for an investigation but no response. I received a 30k bill to fix the car, and Tesla did not take any responsibility. Here is the footage: https://www.dropbox.com/s/sat1w5i0gl6bwsr/2021-12-20_10-56-45-front.mp4?dl=0

Sudden/phantom braking of Tesla Model 3 with no apparent obstacles in sight while on adaptive cruise control both with and without auto steering. First noticed on a trip from SF Bay Area to San Diego in August 2021 at mileage about 2,000 miles. On a longer trip from the Bay Area to Colorado in October 2021 with mileage about 5000 miles, we further tested it on desolate stretches of highways with speed limits from 65 to 85 MPH. Over the course of the trip, the problem occurred over 20 times. We turned off all the automatic driving functions and have not used them since October. We prepared a detailed spreadsheet of all the incidents. See attached. In November, we reported the sudden braking problem to Tesla, along with the spreadsheet. They could not use the data I provided and asked me for more recent timestamp of the braking problem. I refused to test the car on busy Bay Area freeways because it was simply too dangerous. After much back and forth, they decided to test drive for themselves. I informed them that the problem was sporadic and would need to test drive for at least 2 to3 hours. On the first service appointment, they drove for about 15 miles and determined that they could not replicate the problem but would recalibrate the cameras. On the second appointment, instead of recalibrating the cameras as promised, they did another test drive. Again, they only drove for 15 miles and determined that they could not replicate the problem and asked that I contact them if the problem occurred again. I believe this problem is extremely dangerous and have not turned on the autopilot features since October. During my interactions with Tesla service employees, they seem to act as though this is the first time they heard of the problem. I don’t believe Tesla is treating this problem seriously enough to take immediate action and needs the attention of NHTSA.

Sudden/phantom braking of Tesla Model 3 with no apparent obstacles in sight while on adaptive cruise control both with and without auto steering. First noticed on a trip from SF Bay Area to San Diego in August 2021 at mileage about 2,000 miles. On a longer trip from the Bay Area to Colorado in October 2021 with mileage about 5000 miles, we further tested it on desolate stretches of highways with speed limits from 65 to 85 MPH. Over the course of the trip, the problem occurred over 20 times. We turned off all the automatic driving functions and have not used them since October. We prepared a detailed spreadsheet of all the incidents. See attached. In November, we reported the sudden braking problem to Tesla, along with the spreadsheet. They could not use the data I provided and asked me for more recent timestamp of the braking problem. I refused to test the car on busy Bay Area freeways because it was simply too dangerous. After much back and forth, they decided to test drive for themselves. I informed them that the problem was sporadic and would need to test drive for at least 2 to3 hours. On the first service appointment, they drove for about 15 miles and determined that they could not replicate the problem but would recalibrate the cameras. On the second appointment, instead of recalibrating the cameras as promised, they did another test drive. Again, they only drove for 15 miles and determined that they could not replicate the problem and asked that I contact them if the problem occurred again. I believe this problem is extremely dangerous and have not turned on the autopilot features since October. During my interactions with Tesla service employees, they seem to act as though this is the first time they heard of the problem. I don’t believe Tesla is treating this problem seriously enough to take immediate action and needs the attention of NHTSA.

Phantom braking occurs intermittently since vehicle purchase while operating autopilot cruise control. My Tesla suddenly brakes without any vehicle ahead to warrant this action. Cars following me could easily slam into the rear of my car. Luckily that has not yet occurred. I have not noted any associated warning lights or alarms. I am awaiting replacement of the car computer (prompted by needing to reboot computer repeatedly), but this has been delayed several months due to parts unavailable. Consumer was unable to use cruise control because of the numerous times car brake mysteriously while driving on a freeway. Consumer reported the issue to Tesla and Tesla stated it was a bug immediately when it occurs.

Tesla is phantom breaking for no reason. It could cause me to be rear ended by another car. This is happening more and more to me. Tesla purchased in Oct.

Tesla is phantom breaking for no reason. It could cause me to be rear ended by another car. This is happening more and more to me. Tesla purchased in Oct.

Tesla is phantom breaking for no reason. It could cause me to be rear ended by another car. This is happening more and more to me. Tesla purchased in Oct.

The car makes sudden braking when cruise control and/or autopilot is engaged. It’s very frustrating as the car thinks it’s emergency braking because of something in front of the vehicle but the sensors are misreading the stopping. It’s very scary.

The car makes sudden braking when cruise control and/or autopilot is engaged. It’s very frustrating as the car thinks it’s emergency braking because of something in front of the vehicle but the sensors are misreading the stopping. It’s very scary.

The car makes sudden braking when cruise control and/or autopilot is engaged. It’s very frustrating as the car thinks it’s emergency braking because of something in front of the vehicle but the sensors are misreading the stopping. It’s very scary.

When traveling on a two-lane highway, oncoming traffic - especially larger vehicles such as semi trucks - cause the car to think it is going to hit the oncoming traffic and engages the brakes and sounds the forward collision warning. If the driver is not quick, there is danger of being rear-ended due to the sudden and unexpected braking.

When traveling on a two-lane highway, oncoming traffic - especially larger vehicles such as semi trucks - cause the car to think it is going to hit the oncoming traffic and engages the brakes and sounds the forward collision warning. If the driver is not quick, there is danger of being rear-ended due to the sudden and unexpected braking.

While driving up SR95 in AZ at 65mph, the car suddenly provided an audio alert and then slammed on the brakes. It felt as the anti-lock may have engaged. When control was regained, I glanced at the screen and it appeared that it believed a person was in front of the car. There was nothing in front of the car at the time except the road and its common tar-snakes. All safety features were manually turned off to resume the drive. Though within seconds of turning on cruise control, it would start braking and being erratic forcing me to not use the basic cruise control. This was NOT while Autopilot was engaged. At the time of the main incident, cruise control wasn't even engaged. I was in full control of the vehicle and the throttle. But I could not override the braking. Thankfully the person behind was far enough not to be a major risk, but that was luck. Had anyone been following at your average distance, it would have been a rear end collision. This system is NOT safe and I will be looking at replacing the vehicle on this incident alone. I had experienced phantom braking often in the past, but never like this one where it panicked and slammed on the brakes so hard as to cause pain in my wife's shoulder due to the belt.

- Yes - The cruise control portion of autopilot has some dangerous bugs in it ('21 Model 3 Long Range). At freeway speeds, the phantom braking is scary ASF!!! Potentially, getting someone killed. While on my road trip between Los Angeles and Denver then back. I experience at least 20 to 30 phantom braking events from mild to dam near scaring the f$$k out of me. Most of these events were during the day at speeds that would have caused a serious accident if someone was following me too close!! During the night time the events were all mild in comparison to the day time events. -Yes -No -No

With Autopilot/adaptive cruise control engaged, the vehicle slows precipitously on the freeways before large overhead signs across the freeway. There is no need for this reduction in speed due to safety. The system phantom brakes.

With Autopilot/adaptive cruise control engaged, the vehicle slows precipitously on the freeways before large overhead signs across the freeway. There is no need for this reduction in speed due to safety. The system phantom brakes.

Phantom breaking. The basic autopilot cruise control frequently + aggressively brake as it detects phantom threats due to obscured sensors. Car can brake from 65 to e.g. 40mph rapidly, causing more risk, due to the rapid deceleration. Car needs a basic cruise control feature

What component or system failed or malfunctioned, and is it available for inspection upon request? - cruise control. How was your safety or the safety of others put at risk? - traveling at 55-60 mph on a 2 lane highway at night when the car suddenly put on brakes because it must of saw something but there was nothing. I believe this is called "ghost braking". There was a car behind us and had to slow down as well. Luckily no accident was caused but scared my wife and I. Has the problem been reproduced or confirmed by a dealer or independent service center? No. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? NO Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? It happened so fast I did not see any warning lights. The car just suddenly started to brake hard.

What component or system failed or malfunctioned, and is it available for inspection upon request? - cruise control. How was your safety or the safety of others put at risk? - traveling at 55-60 mph on a 2 lane highway at night when the car suddenly put on brakes because it must of saw something but there was nothing. I believe this is called "ghost braking". There was a car behind us and had to slow down as well. Luckily no accident was caused but scared my wife and I. Has the problem been reproduced or confirmed by a dealer or independent service center? No. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? NO Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? It happened so fast I did not see any warning lights. The car just suddenly started to brake hard.

We recently purchased a new Tesla Model 3. This vehicle has Tesla Vision and doesn't have the radar unit to assist with TACC or Autosteer. With this vehicle, it has phantom braking on a frequently basis. For example, I drive on a two lane highway and in a 20 mile drive in clear daylight the vehicle will phantom brake anywhere from 5-10 during the trip. These phantom braking vary from random light braking for no reason to full on hard braking. Fortunately, we've been lucky not to have anyone behind us when these incidents occur. I've contacted Tesla and given them multiple dates and times. I was told that they were able to look at some data on the car and it appears everything is working as it should and it "should" get better with updates. I was also given a bunch of excuses why it was working as it should. I even sent Tesla a video of it doing a hard phantom brake and i was told that the highway was narrow. I've argued with them that this is occurring every day on every drive when we are on a two lane highway. I basically get told that it's functioning as it should, which clearly it is not. When I tell them I owned a 2019 Model 3 and we had zero phantom braking issues with it, but they have no answers. I feel their go to answers are it's a software issue and blame the engineers, which us customers don't have access to. This is going to cause a crash one day if this issue isn't taken seriously.

We recently purchased a new Tesla Model 3. This vehicle has Tesla Vision and doesn't have the radar unit to assist with TACC or Autosteer. With this vehicle, it has phantom braking on a frequently basis. For example, I drive on a two lane highway and in a 20 mile drive in clear daylight the vehicle will phantom brake anywhere from 5-10 during the trip. These phantom braking vary from random light braking for no reason to full on hard braking. Fortunately, we've been lucky not to have anyone behind us when these incidents occur. I've contacted Tesla and given them multiple dates and times. I was told that they were able to look at some data on the car and it appears everything is working as it should and it "should" get better with updates. I was also given a bunch of excuses why it was working as it should. I even sent Tesla a video of it doing a hard phantom brake and i was told that the highway was narrow. I've argued with them that this is occurring every day on every drive when we are on a two lane highway. I basically get told that it's functioning as it should, which clearly it is not. When I tell them I owned a 2019 Model 3 and we had zero phantom braking issues with it, but they have no answers. I feel their go to answers are it's a software issue and blame the engineers, which us customers don't have access to. This is going to cause a crash one day if this issue isn't taken seriously.

The car keeps abruptly braking between 10-20 mph speed reduction while at highway speeds. Seems to be when there's minor hills or curves but otherwise entirely open road without nearby vehicles. Happening in a 4 lane and 2 lane highway with cruise control set (not self driving or autopilot) and the autopilot, autosteer, forward collision warning, and automatic emergency braking options are all confirmed OFF.

The car keeps abruptly braking between 10-20 mph speed reduction while at highway speeds. Seems to be when there's minor hills or curves but otherwise entirely open road without nearby vehicles. Happening in a 4 lane and 2 lane highway with cruise control set (not self driving or autopilot) and the autopilot, autosteer, forward collision warning, and automatic emergency braking options are all confirmed OFF.

The car keeps abruptly braking between 10-20 mph speed reduction while at highway speeds. Seems to be when there's minor hills or curves but otherwise entirely open road without nearby vehicles. Happening in a 4 lane and 2 lane highway with cruise control set (not self driving or autopilot) and the autopilot, autosteer, forward collision warning, and automatic emergency braking options are all confirmed OFF.

Adaptive cruise control is becoming dangerous on two lane roads. It repeatedly tries to slam on the brakes as if there is an obstacle whenever a large truck or similar vehicle passes in the oncoming lane. It is dangerous to vehicles driving behind us and defeats the purpose of having adaptive cruise control.

The car has been phantom braking wrecklessly since July and has not been fixed. It almost caused an accident yesterday morning on the way home from my work. There was a vehicle approaching in the oncoming traffic lane and the lights were on. My car slammed on its brakes causing the person behind me to swerve. If it is low light conditions and a car is approaching in the oncoming traffic lane my Tesla will phantom brake almost always. This started with the vision only vehicles as my past Teslas with radar did not do this. It is now impossible to drive in low light conditions even with cruise control without the car slamming on its brakes constantly in autopilot or cruise.

Car applied brakes while cruise control was engaged. There were no other vehicles around (either in front, approaching, or behind)

Since about November Tesla has been doing random emergency braking both day and night in the middle of the highway almost causing numerous near miss accidents while on auto pilot. Also scaring the hell out myself and other passengers. It sends my dog in the back seat flying forward too.

I was driving 65 on Highway 12 in California with the cruise control on and the car hit the brakes for no reason. I was not using autopilot, I was still controlling the steering. The car behind me had to slam on their brakes to avoid hitting me. This has happened several times and I am not afraid to use cruise control

While using adaptive cruise control the car unexpectedly and unnecessarily brakes, rather sharply at times. This occurs especially frequently on two lane roads with curves and with trucks coming from the opposite direction. This does not occur, in my 6 months of owning this Tesla Model 3, on freeways.

The car phantom brakes a lot. When sun is directly hitting from front, the car wouldn’t go in autopilot. The car phantom brakes on 1 lane streets a lot when there is a car coming from the front. When going the speed limit, it changes automatically to lower speed limits out of nowhere and is a hazard and dangerous because there are cars coming from the back and can hit the car when it reduces the speed very fast. Have submitted multiple phantom braking issues with Tesla with pressing and holding right scroll wheel but nothing has happened so far to correct this issue. When a big trailer changes lane and comes to the near lane of the car, the car thinks it’s going to hit the truck so it phantom brakes.

The car phantom brakes a lot. When sun is directly hitting from front, the car wouldn’t go in autopilot. The car phantom brakes on 1 lane streets a lot when there is a car coming from the front. When going the speed limit, it changes automatically to lower speed limits out of nowhere and is a hazard and dangerous because there are cars coming from the back and can hit the car when it reduces the speed very fast. Have submitted multiple phantom braking issues with Tesla with pressing and holding right scroll wheel but nothing has happened so far to correct this issue. When a big trailer changes lane and comes to the near lane of the car, the car thinks it’s going to hit the truck so it phantom brakes.

Car continues to have instances of phantom braking, no acknowledgment from Tesla regarding the issue. Occurs randomly and unpredictably, causing a serious safety hazard for cars following behind on the road.

Car continues to have instances of phantom braking, no acknowledgment from Tesla regarding the issue. Occurs randomly and unpredictably, causing a serious safety hazard for cars following behind on the road.

I've complained to Tesla as well. No known fix at this time. When Autopilot is engaged, it will pick up phantom objects and brake hard to avoid. I notice this happens mostly when passing semis, RVs, trailers. I see this happening on any turn where a vehicle is in the lane next to you or on the other side of the road. The latest one I had autopilot engaged, I was alone on the highway, and it braked hard for no reason. Brought me from 75-80 mph down to 20 mph in an instant. It then accelerated hard up to 80 again. Within a couple of seconds, it braked hard again down to 20 mph. Autopilot doesn't work. Tesla had no fix and their recommendation was to not use it anymore. I bought the Tesla for that reason. Full Self Driving is even worse. I'm afraid to use it because I have a delayed reaction in Full Self Driving mode. It is unsafe and it will cause an accident.

I've complained to Tesla as well. No known fix at this time. When Autopilot is engaged, it will pick up phantom objects and brake hard to avoid. I notice this happens mostly when passing semis, RVs, trailers. I see this happening on any turn where a vehicle is in the lane next to you or on the other side of the road. The latest one I had autopilot engaged, I was alone on the highway, and it braked hard for no reason. Brought me from 75-80 mph down to 20 mph in an instant. It then accelerated hard up to 80 again. Within a couple of seconds, it braked hard again down to 20 mph. Autopilot doesn't work. Tesla had no fix and their recommendation was to not use it anymore. I bought the Tesla for that reason. Full Self Driving is even worse. I'm afraid to use it because I have a delayed reaction in Full Self Driving mode. It is unsafe and it will cause an accident.

Any time I have the car in autopilot, it unexpectedly phantom brakes. Even when I'm not using autopilot, and I am using cruise control, the phantom braking still occurs. In several instances I have had people come close to hitting my car's rear. The braking is not subtle. It is rapid and aggressive. This issue creates a major danger for anyone in my car and others on the road.

This has happened frequently since I took delivery of the vehicle, I did have one repair request with tesla but they said they could not duplicate and the vehicle did not store enough data to confirm an issue. when driving with adaptive cruise control or cruise control with lane centering (autopilot) enabled the vehicle will SLAM on brakes (Like full emergency braking) with nothing in front of me. sometimes it chimes warning of a potential collision, sometimes it gives no visual or audible reason. It also will have more frequent events of mild to moderate braking. These events happen on interstates and two lane roads mostly but has also happened on multiple lane lower speed roads as well. it has gotten to where I do not use these features as I have almost been rear ended multiple times now due to these events. Tesla's general attitude to this was that it wasn't a big deal which i completely disagree. I have driven older teslas that still have a radar chip and it happens much less frequently and less severe on those. When I purchased the vehicle they informed me that the radar was no longer necessary and that it was to REDUCE these events. This happens from 20mph to 80+ all the way from 10 miles to the current 15,000

This has happened frequently since I took delivery of the vehicle, I did have one repair request with tesla but they said they could not duplicate and the vehicle did not store enough data to confirm an issue. when driving with adaptive cruise control or cruise control with lane centering (autopilot) enabled the vehicle will SLAM on brakes (Like full emergency braking) with nothing in front of me. sometimes it chimes warning of a potential collision, sometimes it gives no visual or audible reason. It also will have more frequent events of mild to moderate braking. These events happen on interstates and two lane roads mostly but has also happened on multiple lane lower speed roads as well. it has gotten to where I do not use these features as I have almost been rear ended multiple times now due to these events. Tesla's general attitude to this was that it wasn't a big deal which i completely disagree. I have driven older teslas that still have a radar chip and it happens much less frequently and less severe on those. When I purchased the vehicle they informed me that the radar was no longer necessary and that it was to REDUCE these events. This happens from 20mph to 80+ all the way from 10 miles to the current 15,000

This has happened frequently since I took delivery of the vehicle, I did have one repair request with tesla but they said they could not duplicate and the vehicle did not store enough data to confirm an issue. when driving with adaptive cruise control or cruise control with lane centering (autopilot) enabled the vehicle will SLAM on brakes (Like full emergency braking) with nothing in front of me. sometimes it chimes warning of a potential collision, sometimes it gives no visual or audible reason. It also will have more frequent events of mild to moderate braking. These events happen on interstates and two lane roads mostly but has also happened on multiple lane lower speed roads as well. it has gotten to where I do not use these features as I have almost been rear ended multiple times now due to these events. Tesla's general attitude to this was that it wasn't a big deal which i completely disagree. I have driven older teslas that still have a radar chip and it happens much less frequently and less severe on those. When I purchased the vehicle they informed me that the radar was no longer necessary and that it was to REDUCE these events. This happens from 20mph to 80+ all the way from 10 miles to the current 15,000

Our Tesla Model 3, while using the Adaptive Cruise Control, will apply full brakes with either nothing in the road ahead or with oncoming traffic on a 2-lane highway. This is extremely dangerous and a hazard to vehicles behind us. This occurs every time it is used, with frequency up to 4 times in a single minute. Tesla has cancelled 2 service requests this month stating this is normal operation.

While driving on the highway and using auto pilot it has had multiple instances of phantom brakes doing highway speeds it will slow cars down rapidly and for no apparent reason. Really needs to get corrected.

While driving on the highway and using auto pilot it has had multiple instances of phantom brakes doing highway speeds it will slow cars down rapidly and for no apparent reason. Really needs to get corrected.

When the car is in assisted autopilot, the vehicle will brake very hard when not necessary.

Phantom braking occurs about once every 15-20 minutes of long distance highway driving while using Tesla Autopilot. Specifically, for no apparent reason, with no obstacle in front or near the car, while driving highway speed on Autopilot, the car suddenly slams on the brakes on its own.

1. Vehicle brakes for no reason while on Traffic Aware Cruise Control 2. At night on come head lights appear to cause braking while on Traffic Aware Cruise Control. 3. Vehicle brakes for no reason when on Traffic Aware Cruise Control when on two lane road (one lane each direction) when on coming large vehicle approaching. 4. Vehicle brakes for no apparent reason while on Traffic Aware Cruise Control when light conditions cause high contrast shadows on the road.

On several occasions, when the car was on cruise control and for no apparent reason, it suddenly braked from 70/65 mph to 30. Not only was this startling and frightening, it could have caused a rear-end collision, especially on Interstate 66 in VA where cars often follow too close. I contacted Tesla twice about the issue and set up a service appointment. Tesla cancelled the appointment the day before, saying they needed to have specific "time stamps" of the incidents. When I gave them a several day range, they said that wasn't specific enough, that I should drive the car and "time stamp" the next incident. Great idea, Tesla, for me to risk injury so they can get a "time stamp". In a word, they were dismissive and responded as if this were the first they'd heard of such a problem. It is a significant safety issue not only for the driver but for anyone in nearby cars.I have only had the car 4+ months and it terrifies me. The Washington Post had an article this week indicating this is a problem with many Teslas. Now I know I'm not alone. Would appreciate NHTSA's assistance in getting this safety issue resolved.

On several occasions, when the car was on cruise control and for no apparent reason, it suddenly braked from 70/65 mph to 30. Not only was this startling and frightening, it could have caused a rear-end collision, especially on Interstate 66 in VA where cars often follow too close. I contacted Tesla twice about the issue and set up a service appointment. Tesla cancelled the appointment the day before, saying they needed to have specific "time stamps" of the incidents. When I gave them a several day range, they said that wasn't specific enough, that I should drive the car and "time stamp" the next incident. Great idea, Tesla, for me to risk injury so they can get a "time stamp". In a word, they were dismissive and responded as if this were the first they'd heard of such a problem. It is a significant safety issue not only for the driver but for anyone in nearby cars.I have only had the car 4+ months and it terrifies me. The Washington Post had an article this week indicating this is a problem with many Teslas. Now I know I'm not alone. Would appreciate NHTSA's assistance in getting this safety issue resolved.

When using traffic aware cruise control or auto steer the car phantom breaks and issues warning chimes when it senses large vehicles approaching on undivided 2 lane roads. The car also phantom brakes when it misidentifies shadows on these same 2 lane roads. I have almost been rear ended by closely following traffic several times. This has been happening since new. We have been patient, hoping a software update would fix this very well known problem.

When using traffic aware cruise control or auto steer the car phantom breaks and issues warning chimes when it senses large vehicles approaching on undivided 2 lane roads. The car also phantom brakes when it misidentifies shadows on these same 2 lane roads. I have almost been rear ended by closely following traffic several times. This has been happening since new. We have been patient, hoping a software update would fix this very well known problem.

When using traffic aware cruise control or auto steer the car phantom breaks and issues warning chimes when it senses large vehicles approaching on undivided 2 lane roads. The car also phantom brakes when it misidentifies shadows on these same 2 lane roads. I have almost been rear ended by closely following traffic several times. This has been happening since new. We have been patient, hoping a software update would fix this very well known problem.

When using the adaptive cruise control on the vehicle, which is the only cruise control there is, the car will often brake hard for no reason, or inappropriate reasons. This most recent incident was a two lane highway (one lane each direction) where oncoming cars who were in their lane would cause the car to think a collision was imminent, start beeping, and brake hard. Another incident appeared to brake for shadows, but I am unsure! Overall the experience, and experiences of many other Tesla owners facing similar problems has caused me to just be unable to use cruise control at all as I fear it could cause an accident.

When driving at low speeds (below35) we have had 2 instances of the car braking with no obstacles.

When driving in several locations near my home, with cruise control engaged (not full driving, just cruise control), the car will suddenly slow to ~20mph and stay at that speed for a few moments, and then accelerate back up to the legal speed limit of 55mph, 60mph, etc. There are no objects on or near the road, no other cars, and it appears to be a problem with the software that identifies if there is an object in the road to automatically reduce speed or slow down. There are no warning chimes, no feedback to the driver of the reason to slow down, no posted speed limit signs, etc. I can duplicate this every time I traverse these roadways. One of the most significant reasons I purchased this vehicle was it's advertised safety features like emergency braking and such. However, with this problem, I either have to disable the auto-braking feature, or not use the driving assist features (like cruise control). This is a significant issue for me, and I have no doubt going from a 60mph roadway to 20mph for no reason will result in me getting rear-ended or at the very least cause problems for drivers behind me.

Driving on cruise control only. Autopilot was not engaged. I was cruising at 50mph when it "phantom" braked out of nowhere. It was clear as day in front of me and luckily the car behind me was a hundred yards or so. It abruptly decreased speed to 35mph before I could get back up to speed by manually using the accelerator to override cruise control. This has happened many times and I'm afraid to use such features moving forward.

While driving in cruise control, my Tesla 3 braked for no reason. No accident occurred because no one was behind me. It has happened about 10 times. It has not been confirmed by a dealer because I do not live near a dealer. It has not been inspected by the manufacturer, police or insurance representatives. No warning lights or messages appeared to warn me.

System: Traffic Aware Cruise Control Safety Risk: Full regenerative breaking in the fast lane on a highway with a car following behind. Car behind had to initiate emergency braking. Reproduced by Dealer: Did not contact dealer Inspected by Manufacturer: Did not contact manufacturer Warnings: No, braking automatically initiated System: Lane Departure Warning Safety Risk: Misreading a parking garage and initiating lane departure warning chime Reproduced by Dealer: Did not contact dealer Inspected by Manufacturer: Did not contact manufacturer Warnings: Yes, warning chime initiated and warning message.

While using the autopilot feature on my Tesla, there have been several instances where the car will brake suddenly for no apparent reason. This has happened at high speeds and at slow speeds under various conditions. The braking is so severe that if a car was following behind they would have to react quickly to avoid an accident. Multiple instances over the last year.

Since my ownership, I have experienced multiple phantom braking incidents with my 2021 Tesla Model 3 Long Range. I would estimate that I experience 3 to 5 severe phantom braking incidents per week. It is nearly a daily occurrence during my daily commute to work. Sometimes there are multiple incidents during one leg of my commute. I have filed several requests for service with Tesla through their application and every time the technical support says the system is working properly. I have given them explicit details and information about the incidents which have helped them to identify the time and location but they have never fixed/changed/remedied the phantom braking issue. I have filed these requests for service to protect myself if I'm ever involved in a serious accident due to these phantom braking incidents.

Since my ownership, I have experienced multiple phantom braking incidents with my 2021 Tesla Model 3 Long Range. I would estimate that I experience 3 to 5 severe phantom braking incidents per week. It is nearly a daily occurrence during my daily commute to work. Sometimes there are multiple incidents during one leg of my commute. I have filed several requests for service with Tesla through their application and every time the technical support says the system is working properly. I have given them explicit details and information about the incidents which have helped them to identify the time and location but they have never fixed/changed/remedied the phantom braking issue. I have filed these requests for service to protect myself if I'm ever involved in a serious accident due to these phantom braking incidents.

1st incident Driving on a 2 lane road @ 55MPH with no oncoming traffic emergency braking occurred (with all the warning lights and sounds) with no obstacles in my path. 2nd incident driving on a 8 lane highway @65 MPH (I-71) with very little traffic (and no oncoming obstacles) emergency braking occurred (with all the warning lights and sounds) no obstacles in my path. 3rd incident driving on a different 2 lane road @ 45 MPH emergency braking occurred (with all the warning lights and sounds) no obstacles in my path. I have only owned the vehicle 2.5 months and less the 1300 miles on the odometer.

Driving on the interstate in autopilot with nobody in front of me but there was somebody riding my rear. And the vehicle decided to phantom break which almost caused the guy to rear end me while going 75 mph it could have been lethal.

Phantom braking for no apparent reason. Worst occurrence was this morning driving home from work on cruise control, max speed cruise 73mph, suddenly my car braked on its own down to 59mph in 2 seconds. Very scary. My wrist hurts from that incident & my forehead almost hit the steering. Nothing in front & thank God no tailgating car behind me. This is not safe. It happens to me all the time but this was the scariest of all.

When vehicle is in full self drive mode, sometimes it mistakenly detects an obstacle on the highway and applies brakes. This event presents risk of getting rear ended at high speed on highways.

When vehicle is in full self drive mode, sometimes it mistakenly detects an obstacle on the highway and applies brakes. This event presents risk of getting rear ended at high speed on highways.

When vehicle is in full self drive mode, sometimes it mistakenly detects an obstacle on the highway and applies brakes. This event presents risk of getting rear ended at high speed on highways.

Phantom braking when using cruise control. Car suddenly braking or rapidly decelerating for now discernible reason when traveling at speed on highways, both two-lane and multilane. The problem has occurred many times since first acquired in December 2021.

Phantom braking when using cruise control. Car suddenly braking or rapidly decelerating for now discernible reason when traveling at speed on highways, both two-lane and multilane. The problem has occurred many times since first acquired in December 2021.

Phantom braking when using cruise control. Car suddenly braking or rapidly decelerating for now discernible reason when traveling at speed on highways, both two-lane and multilane. The problem has occurred many times since first acquired in December 2021.

When driving north on Highway 61 between St. Louis, MO and Hannibal, MO and using "autopilot" adaptive cruise control, the vehicle will slam on it's brakes even when nothing is on the road in front of it. It happens multiple times through the duration of this trip. It's absolutely terrifying, and I hope it doesn't ever take effect when vehicles are behind me. It's so scary that I've stopped using cruise control out of fear it will brake check for no reason and cause an accident.

When driving north on Highway 61 between St. Louis, MO and Hannibal, MO and using "autopilot" adaptive cruise control, the vehicle will slam on it's brakes even when nothing is on the road in front of it. It happens multiple times through the duration of this trip. It's absolutely terrifying, and I hope it doesn't ever take effect when vehicles are behind me. It's so scary that I've stopped using cruise control out of fear it will brake check for no reason and cause an accident.

Recently, at least it was noticed starting in Dec 2021, while driving on two lane highways under cruise control or self driving, the vehicle would brake hard at vehicles approaching in the opposite lane. Large trucks especially triggered the response. The braking response definitely put the safety of the occupants and following vehicles at risk. I have not taken it to a dealer or service center. There were no warning lamps, messages or any symptoms prior. I have stopped using those features while on two lane roads. I certainly am hoping for a software update to solve this issue.

The problem I am having, when I use traffic-aware cruise control, is "phantom braking" This has occurred multiple times on two-lane highways when a large truck is passing in the opposite lane, and sometimes on a freeway when I pass a large truck that is in the right lane. The car suddenly slows or stops and the forward collision warning alarms sound. My vehicle is available for inspection upon request. This upsets everyone in the vehicle because it is so sudden that they are startled and frightened when the alarm sounds and the car abruptly brakes. My wife has asked me to not use the traffic-aware cruise control at all because of this problem. I have owned the car almost 9 months and my wife has not and will not drive it because of the this problem. It is also quite dangerous because a vehicle behind me would not be expecting me to slow down or stop when there is no apparent reason to do so and may crash into my car. I have not contacted Tesla because I have thought the problem would be fixed by now with a software update, but after a number of updates the problem persists. I know other Tesla owners are having the same problem. I will contact Tesla today.

The problem I am having, when I use traffic-aware cruise control, is "phantom braking" This has occurred multiple times on two-lane highways when a large truck is passing in the opposite lane, and sometimes on a freeway when I pass a large truck that is in the right lane. The car suddenly slows or stops and the forward collision warning alarms sound. My vehicle is available for inspection upon request. This upsets everyone in the vehicle because it is so sudden that they are startled and frightened when the alarm sounds and the car abruptly brakes. My wife has asked me to not use the traffic-aware cruise control at all because of this problem. I have owned the car almost 9 months and my wife has not and will not drive it because of the this problem. It is also quite dangerous because a vehicle behind me would not be expecting me to slow down or stop when there is no apparent reason to do so and may crash into my car. I have not contacted Tesla because I have thought the problem would be fixed by now with a software update, but after a number of updates the problem persists. I know other Tesla owners are having the same problem. I will contact Tesla today.

The problem I am having, when I use traffic-aware cruise control, is "phantom braking" This has occurred multiple times on two-lane highways when a large truck is passing in the opposite lane, and sometimes on a freeway when I pass a large truck that is in the right lane. The car suddenly slows or stops and the forward collision warning alarms sound. My vehicle is available for inspection upon request. This upsets everyone in the vehicle because it is so sudden that they are startled and frightened when the alarm sounds and the car abruptly brakes. My wife has asked me to not use the traffic-aware cruise control at all because of this problem. I have owned the car almost 9 months and my wife has not and will not drive it because of the this problem. It is also quite dangerous because a vehicle behind me would not be expecting me to slow down or stop when there is no apparent reason to do so and may crash into my car. I have not contacted Tesla because I have thought the problem would be fixed by now with a software update, but after a number of updates the problem persists. I know other Tesla owners are having the same problem. I will contact Tesla today.

The car was running 2021.40.6 at the time of latest incident, but have noticed it with previous verisons as well. Car abruptly brakes HARD on the freeway when autopilot is being used. I have the non-FSD beta version, with just basic autopilot. I had to immediately intervene to prevent a car behind me from colliding. The driver assumed i was brake checking them. I've seen reports of this incident repeat with other Teslas owned by friends - have not gone to the service center as they aren't very helpful with software issues. The car has not been inspected I don't recall receiving any warning from the car - the car suddenly started braking hard on the freeway, so i had to disengage autopilot and accelerate immediately

When adaptive cruise control is engaged the car brakes when it sees oncoming traffic even though the vehicle is clearly in it lane. This also happens when it sees a semi truck driving in the same direction but in the adjacent lane. Its at a minimum annoying but it is quite dangerous especially when cars are behind me.

When in Autopilot (Adaptive Cruise Control) the vehicle intermittently slams on the brakes at highway speeds. I have not been able to determine any pattern for when this will happen - it’s disruptive and potentially dangerous.

The vehicle, while operating in autopilot mode, will automatically brake aggressively for no apparent reason. No physical object including shadows or potholes are in the way for this to occur. I have experienced this phantom braking on multiple occasions while using the driver assist mode on (autopilot). Being the attentive driver that I am, I quickly disengage the autopilot and manually take over to avoid a rear end collision. I have not had the vehicle inspected by Tesla or my insurance company as this is apparently a common theme with this car.

While driving the vehicle using autopilot or adaptive cruise control, the vehicle "phantom brakes" - meaning the vehicle abruptly applies the brakes to slow down even though there are no obstacles in the road. This happens almost every time either one of these systems is used.

Our 2021Tesla Model 3, delivered in September 2021, has ongoing, repeated problems with sudden, unexpected braking, whenever cruise control or auto-steer is engaged. This happens regularly while driving on two lane highways, usually when a large sized vehicle is approaching in the opposing lane, but it also occasionally happens when there is no oncoming vehicle. Typically, an alarm also sounds and a warning light flashes in the car, warning of imminent collision risk. This happens every time we have used cruise control or auto-steer sometimes with nearly every large oncoming vehicle. This is unsafe because of the risk of a rear-end collision. The car dramatically slows. It also risks injury to the car occupants from being thrown forward unexpectedly. Along with the alarm and flashing signal, the braking is so dangerous and unnerving that it makes cruise control and auto-steer unusable. We have complained to Tesla of this problem. Tesla recently shipped the car to inspect more fully at its facility in Honolulu, but so far has reported that it is operating within "normal parameters." The rep suggested that the cruise control is not designed to work on a two lane highway such as we have on the Big Island of HI, although she says that it does not happen with every Tesla here. It occurs even on straight, level sections of wide, two lane highways with clearly marked lanes and wide shoulders. Tesla still has our car. When we read the Washington Post article explaining that many others are experiencing this problem, we felt we should report as well. We have advised Tesla that the cruise control and auto-steer functions in our car are unsafe and unusable in their current condition. We do not use cruise control or auto-steer except to test whether the problem has been fixed. We do not have full self-driving.

During a 144 mile trip, my late 2021 Model 3 "phantom-braked" 4 separate times in just one day. Meaning the car saw some imaginary object in front of it and proceeded to slam on the brakes with traffic behind me. The first two occurrences this day were due to what I'm assuming is the shadow of two Semis. The third occurrence was after driving past a van on the shoulder with the autopilot system off. The last occurrence, before I seriously began to feel unsafe in this car, occurred when about to cross below an overpass with nonexistent traffic in front of me. Up until this specific day, I've experienced 4 phantom braking events spread across 4 months and 4500 miles. After today, and an additional 4 occurrences of phantom braking added within a few miles, my model 3 feels unsafe to me

During a 144 mile trip, my late 2021 Model 3 "phantom-braked" 4 separate times in just one day. Meaning the car saw some imaginary object in front of it and proceeded to slam on the brakes with traffic behind me. The first two occurrences this day were due to what I'm assuming is the shadow of two Semis. The third occurrence was after driving past a van on the shoulder with the autopilot system off. The last occurrence, before I seriously began to feel unsafe in this car, occurred when about to cross below an overpass with nonexistent traffic in front of me. Up until this specific day, I've experienced 4 phantom braking events spread across 4 months and 4500 miles. After today, and an additional 4 occurrences of phantom braking added within a few miles, my model 3 feels unsafe to me

During a 144 mile trip, my late 2021 Model 3 "phantom-braked" 4 separate times in just one day. Meaning the car saw some imaginary object in front of it and proceeded to slam on the brakes with traffic behind me. The first two occurrences this day were due to what I'm assuming is the shadow of two Semis. The third occurrence was after driving past a van on the shoulder with the autopilot system off. The last occurrence, before I seriously began to feel unsafe in this car, occurred when about to cross below an overpass with nonexistent traffic in front of me. Up until this specific day, I've experienced 4 phantom braking events spread across 4 months and 4500 miles. After today, and an additional 4 occurrences of phantom braking added within a few miles, my model 3 feels unsafe to me

Phantom breaking has occurred regularly with this vehicle when using adaptive cruise control on two-lane roads. Oncoming traffic in the opposite lane will cause the vehicle to suddenly decelerate, which has led to moments where the vehicle was rear ended. This has most typically occurred during curves in the road. There has never been a valid reason for the sudden deceleration, and the car is apparently confusing the oncoming vehicle with a imminent danger.

Phantom breaking has occurred regularly with this vehicle when using adaptive cruise control on two-lane roads. Oncoming traffic in the opposite lane will cause the vehicle to suddenly decelerate, which has led to moments where the vehicle was rear ended. This has most typically occurred during curves in the road. There has never been a valid reason for the sudden deceleration, and the car is apparently confusing the oncoming vehicle with a imminent danger.

When using Autopilot and/or cruise control, the vehicle will brake hard for absolutely no reason. For example, when driving at highway speeds, the vehicle will drop from 70 mph to 45 mph in an instant. In my experience, it tends to happen when there are sudden changes in ambient light.

The vehicle will unexpectedly slam on the brakes while using the Traffic Aware Cruise Control. I've noticed it happens mostly on two lane highways with oncoming traffic or heavy shadows on the road. It will also happen on interstates when a shadow is on the road or a dark patch. I'm afraid I will be rear ended if this continues.

The vehicle will unexpectedly slam on the brakes while using the Traffic Aware Cruise Control. I've noticed it happens mostly on two lane highways with oncoming traffic or heavy shadows on the road. It will also happen on interstates when a shadow is on the road or a dark patch. I'm afraid I will be rear ended if this continues.

The vehicle will unexpectedly slam on the brakes while using the Traffic Aware Cruise Control. I've noticed it happens mostly on two lane highways with oncoming traffic or heavy shadows on the road. It will also happen on interstates when a shadow is on the road or a dark patch. I'm afraid I will be rear ended if this continues.

On a recent road trip from CA to UT while driving on four lane roads whenever I had Traffic-Aware Cruise Control enabled and approached a large vehicle from the passing lane the vehicle would suddenly slam on the brakes, dropping 15-25 mph in seconds, it would also do this for zero apparent reason when there was no other vehicles or objects within sight. Several times it almost caused a collision when a vehicle was following to closely behind us. I had to disable and stop using the feature to avoid a possible rear end collision!

Since purchasing my Tesla new in 6/21, I've been experiencing random and dangerous "Phantom Braking" where the vehicle will suddenly brake hard on the highway for no reason. On a few occasions, this created a hazard for motorists behind me. This has been occurring in rural and urban settings with the vehicle's cruise control or AutoPilot set. It doesn't matter which system I use, phantom braking is persistent in both. I contacted Tesla service twice on this issue and each time I was informed "no malfunction found with sensors or vehicle operation." I was hopeful that Tesla would release a software update to mitigate this issue (other Tesla owners have voiced this issue on social media and forums), however nothing has been resolved in the 7 months I've owned this vehicle.

Emergency braking is applied while using adaptive cruise or autopilot. This happens on two lane undivided roads with larger vehicles approaching on the opposite side. It does not happen with cars or pick ups. For no reason the forward collision warning will sound and emergency braking is applied. If a vehicle is behind my car I would have been rear ended. I have sent error reports over the air to Tesla at the moment. I also brought my car into service and documented this issue. They did recalibrate the forward cameras but no difference was seen. Just out of the blue the car will.reduce speed by 20 mph. In my video the speed went from 46 to 29. The funny thing is it did not slow fir the oversized truck. I have videos if the incidents but I cannot upload them on here.

Emergency braking is applied while using adaptive cruise or autopilot. This happens on two lane undivided roads with larger vehicles approaching on the opposite side. It does not happen with cars or pick ups. For no reason the forward collision warning will sound and emergency braking is applied. If a vehicle is behind my car I would have been rear ended. I have sent error reports over the air to Tesla at the moment. I also brought my car into service and documented this issue. They did recalibrate the forward cameras but no difference was seen. Just out of the blue the car will.reduce speed by 20 mph. In my video the speed went from 46 to 29. The funny thing is it did not slow fir the oversized truck. I have videos if the incidents but I cannot upload them on here.

Emergency braking is applied while using adaptive cruise or autopilot. This happens on two lane undivided roads with larger vehicles approaching on the opposite side. It does not happen with cars or pick ups. For no reason the forward collision warning will sound and emergency braking is applied. If a vehicle is behind my car I would have been rear ended. I have sent error reports over the air to Tesla at the moment. I also brought my car into service and documented this issue. They did recalibrate the forward cameras but no difference was seen. Just out of the blue the car will.reduce speed by 20 mph. In my video the speed went from 46 to 29. The funny thing is it did not slow fir the oversized truck. I have videos if the incidents but I cannot upload them on here.

Hello, Driving on a snowy road around 20 MPH. Attempted to slow down in a straight line, used the brakes to try and slow vehicle to go into a driveway. Vehicle would not respond to any inputs. The brake pedal seemed frozen, coming off and back on the brake pedal did not change anything. There sounded like an ABS pulsing but it was not working. Post accident pictures showed it looked like the car was dragging one axle like it was locked in the snow. Car ending up grazing a mailbox post and afterword said 'take control'. I believe the car tried to do an automated braking maneuver which did not work. The road was covered in 1-2" of snow and the mailbox would have been a reference point in the distance. When turning the steering wheel away from the object that was hit, the car continued to go straight like the wheels were not attached. The car never veered left or right during this whole event even though i tried to turn.

Purchased my Model 3 in August 2021. Autopilot and cruise control features worked flawlessly for the first few months of ownership. In September of 2021 after a software update, the vehicle started to perform unsafe reactions while on autopilot or cruise control. If any large vehicle like a semi-truck or vans were traveling in the opposite direction of travel on any two lane road, cruise control or autopilot will slam on the breaks and activate the forward collision warning tones. Reactions like this from driver assist technology could easily result in a multi-car accident. While commuting on a busy road (10 miles) on cruise control/autopilot, this issue could occur over 10 times on one drive. While making contact with Tesla service in September, a representative said that Tesla's autopilot software team was aware of the issue affecting Model 3's similar to my VIN. The representative ensured that the team was working on a software update to fix this issue. This problem continued until January 13th when I had a service appointment where I stated the same issue. The technician wanted a ride to experience the issue the car had. After getting the issue to reoccur, the technician stated that "he had never seen this problem before." After he fixed an unrelated issue with the car, he reassured me that the issue is know by Tesla and they were working on a software update to resolve the issue. After over three months with this major safety defect, I am reporting this issue to NHTSA.

Purchased my Model 3 in August 2021. Autopilot and cruise control features worked flawlessly for the first few months of ownership. In September of 2021 after a software update, the vehicle started to perform unsafe reactions while on autopilot or cruise control. If any large vehicle like a semi-truck or vans were traveling in the opposite direction of travel on any two lane road, cruise control or autopilot will slam on the breaks and activate the forward collision warning tones. Reactions like this from driver assist technology could easily result in a multi-car accident. While commuting on a busy road (10 miles) on cruise control/autopilot, this issue could occur over 10 times on one drive. While making contact with Tesla service in September, a representative said that Tesla's autopilot software team was aware of the issue affecting Model 3's similar to my VIN. The representative ensured that the team was working on a software update to fix this issue. This problem continued until January 13th when I had a service appointment where I stated the same issue. The technician wanted a ride to experience the issue the car had. After getting the issue to reoccur, the technician stated that "he had never seen this problem before." After he fixed an unrelated issue with the car, he reassured me that the issue is know by Tesla and they were working on a software update to resolve the issue. After over three months with this major safety defect, I am reporting this issue to NHTSA.

Purchased my Model 3 in August 2021. Autopilot and cruise control features worked flawlessly for the first few months of ownership. In September of 2021 after a software update, the vehicle started to perform unsafe reactions while on autopilot or cruise control. If any large vehicle like a semi-truck or vans were traveling in the opposite direction of travel on any two lane road, cruise control or autopilot will slam on the breaks and activate the forward collision warning tones. Reactions like this from driver assist technology could easily result in a multi-car accident. While commuting on a busy road (10 miles) on cruise control/autopilot, this issue could occur over 10 times on one drive. While making contact with Tesla service in September, a representative said that Tesla's autopilot software team was aware of the issue affecting Model 3's similar to my VIN. The representative ensured that the team was working on a software update to fix this issue. This problem continued until January 13th when I had a service appointment where I stated the same issue. The technician wanted a ride to experience the issue the car had. After getting the issue to reoccur, the technician stated that "he had never seen this problem before." After he fixed an unrelated issue with the car, he reassured me that the issue is know by Tesla and they were working on a software update to resolve the issue. After over three months with this major safety defect, I am reporting this issue to NHTSA.

Dangerously brakes for no apparent reason while using adaptive cruise control. Especially common on two-lane roads. Occurs approximately once every 20 miles of driving. Has caused near accidents on three occasions. Tesla does not take any action. Car has the most recent software update.

On *multiple occasions* when driving on a highway and using cruise control, the car has suddenly and severly decelerated. Tesla advises that for my vehicle the safety system to detect possible collisions is still in the "BETA phase" and has initially been programmed to be over-sensitive. Tesla claims that as software updates are made, this issue will improve. [See uploaded screenshot of text chat I had with Tesla service on 1/19/21.] I have an appointmnet to take the vehicle in, but Tesla says I must be able to give then exact dates and times of occurrences or otherwise there is too much code on the vehicle's computer log for their systemt to be able to analyze. (I am able to give them some dates but not exact times.) My fear and concern in the meantime is that such unpredictable deceleration events when traveling at highway speeds could result in a rear-end collision with a vehicle behind me. When I expressed this to Tesla, their reply was: "It is the driver's responsibility to stay alert, drive safely, and be in control of the vehicle at all times." I pointed out to them the obvious fact that none of those things can prevent this issue from happening, and received no further reply.

On *multiple occasions* when driving on a highway and using cruise control, the car has suddenly and severly decelerated. Tesla advises that for my vehicle the safety system to detect possible collisions is still in the "BETA phase" and has initially been programmed to be over-sensitive. Tesla claims that as software updates are made, this issue will improve. [See uploaded screenshot of text chat I had with Tesla service on 1/19/21.] I have an appointmnet to take the vehicle in, but Tesla says I must be able to give then exact dates and times of occurrences or otherwise there is too much code on the vehicle's computer log for their systemt to be able to analyze. (I am able to give them some dates but not exact times.) My fear and concern in the meantime is that such unpredictable deceleration events when traveling at highway speeds could result in a rear-end collision with a vehicle behind me. When I expressed this to Tesla, their reply was: "It is the driver's responsibility to stay alert, drive safely, and be in control of the vehicle at all times." I pointed out to them the obvious fact that none of those things can prevent this issue from happening, and received no further reply.

Multiple phantom braking incidents on regular cruise control (not autopilot).

The car repeatedly applies the brakes when the cruise control is engaged when there is no imminent safety issue. It will do this on the highway when vehicles are following putting me at risk for a rear end collision. When I use the cruise on secondary roads (to stay under the speed limit) the behavior is similar. The car will apply brakes for passing shadows, again putting me at risk for a rear end collision. I no longer use the cruise function because the braking operation is unpredictable and it is, in my opinion, generally hazardous.

Multiple random automatic braking occurred during Freeway cruising

Multiple random automatic braking occurred during Freeway cruising

Several times during every drive where Cruise Control/Autopilot is used, an event known as "Phantom Braking" occurs often time triggering the collision warning systems with no danger present. Phantom breaking is the automatic braking of the Cruise Control/Autopilot systems when no danger is present, causing an unexpected and dangerous automatic braking event. I wish to emphasize that this happens when either system is used under safe conditions and even within the guidelines recommended by Tesla. It is available for inspection should it be necessary. During these events, a vehicle following mine can and has been caught off-guard by the sudden braking, resulting in near-miss rear-endings. The danger of a vehicle collision is extremely high in these scenarios. The problem happens consistently on two-lane roads with no median using standard cruise control (Autopilot is only recommended on divided highways/interstates). Phantom braking still occurs at random in varied environments with both systems. My vehicle has not been taken to a dealer, but the issue has been confirmed/acknowledged by the manufacturer with no solution. This vehicle is new and delivered to me this year. The problem has been occurring since taking ownership/lease. Aside from the the emergency collision warning chime occurring sometimes at the same time as the braking event, there are no symptoms, warnings, or lamps appearing prior to the automatic braking nor afterwards. I have attempted to use the vehicle's camera recalibration and have changed available safety settings to every combination possible to attempt a consumer fix for the issue, but no combination of settings seems to keep the automatic braking events from happening

Several times during every drive where Cruise Control/Autopilot is used, an event known as "Phantom Braking" occurs often time triggering the collision warning systems with no danger present. Phantom breaking is the automatic braking of the Cruise Control/Autopilot systems when no danger is present, causing an unexpected and dangerous automatic braking event. I wish to emphasize that this happens when either system is used under safe conditions and even within the guidelines recommended by Tesla. It is available for inspection should it be necessary. During these events, a vehicle following mine can and has been caught off-guard by the sudden braking, resulting in near-miss rear-endings. The danger of a vehicle collision is extremely high in these scenarios. The problem happens consistently on two-lane roads with no median using standard cruise control (Autopilot is only recommended on divided highways/interstates). Phantom braking still occurs at random in varied environments with both systems. My vehicle has not been taken to a dealer, but the issue has been confirmed/acknowledged by the manufacturer with no solution. This vehicle is new and delivered to me this year. The problem has been occurring since taking ownership/lease. Aside from the the emergency collision warning chime occurring sometimes at the same time as the braking event, there are no symptoms, warnings, or lamps appearing prior to the automatic braking nor afterwards. I have attempted to use the vehicle's camera recalibration and have changed available safety settings to every combination possible to attempt a consumer fix for the issue, but no combination of settings seems to keep the automatic braking events from happening

Phantom braking events on most every type of road and drive when using cruise control, not autopilot or other automated systems. Standard cruise control is unusable and is a safety concern with constant warning alerts and automatic emergency braking when other vehicles pass by safely in the adjacent lane.

Phantom braking events on most every type of road and drive when using cruise control, not autopilot or other automated systems. Standard cruise control is unusable and is a safety concern with constant warning alerts and automatic emergency braking when other vehicles pass by safely in the adjacent lane.

Phantom braking events on most every type of road and drive when using cruise control, not autopilot or other automated systems. Standard cruise control is unusable and is a safety concern with constant warning alerts and automatic emergency braking when other vehicles pass by safely in the adjacent lane.

Constant “phantom braking” when using autopilot on the freeway and other roads. When the pavement changes color, the car slams on the brakes in the middle of the freeway. When a truck is in the opposing lane, the car slams on the brakes. When a truck is merging into a lane to my right on the freeway, the car slams on the brakes. This is extremely unsafe and frightening. This software is garbage and worse than my 6 year old Subaru. Tesla needs to address this, and I hope they’re eventually forced to.

Constant “phantom braking” when using autopilot on the freeway and other roads. When the pavement changes color, the car slams on the brakes in the middle of the freeway. When a truck is in the opposing lane, the car slams on the brakes. When a truck is merging into a lane to my right on the freeway, the car slams on the brakes. This is extremely unsafe and frightening. This software is garbage and worse than my 6 year old Subaru. Tesla needs to address this, and I hope they’re eventually forced to.

We continue to have issues with Tesla's autopilot feature. The Model 3 with autopilot activated or just with the adaptive cruise control activated, will "phantom" brake for zero reason. Today, 12/14/2021, it happened three times within 90 minutes. All three times there was no reason for the car to make emergency actions. Once I had a truck with a trailer behind me, forcing them to brake hard to avoid hitting the rear of the car. I submitted a service request to Tesla and this is what they told me: Incidents like the one you are describing where the vehicle slowdowns for apparently no reason are generally caused by a few reason such as: Map data inaccuracy, Speed limit data inaccuracies, the vehicle reacting to an upcoming event, GPS position inaccuracies, and predicative driving anomalies. In all of these situations the computer is trying to make the safest determination of what to do with the information that it being fed. To us as drivers, it would seem like a bad decision, but the computer uses our input following these events to get better at predicting how it should respond. Anytime you intervene with an autopilot behavior decision you are helping the system as whole get better. There are no faults with any of the hardware in the vehicle and at this time these behaviors are a limitation of software in the system. Our engineering team is working to improve auto pilot with every firmware update and we hope to see improvements in future updates. I'm sorry you feel that was Justin. Future firmware updates will improve functionality. You always have the options of not using your AutoPilot until they do. Thank you

We continue to have issues with Tesla's autopilot feature. The Model 3 with autopilot activated or just with the adaptive cruise control activated, will "phantom" brake for zero reason. Today, 12/14/2021, it happened three times within 90 minutes. All three times there was no reason for the car to make emergency actions. Once I had a truck with a trailer behind me, forcing them to brake hard to avoid hitting the rear of the car. I submitted a service request to Tesla and this is what they told me: Incidents like the one you are describing where the vehicle slowdowns for apparently no reason are generally caused by a few reason such as: Map data inaccuracy, Speed limit data inaccuracies, the vehicle reacting to an upcoming event, GPS position inaccuracies, and predicative driving anomalies. In all of these situations the computer is trying to make the safest determination of what to do with the information that it being fed. To us as drivers, it would seem like a bad decision, but the computer uses our input following these events to get better at predicting how it should respond. Anytime you intervene with an autopilot behavior decision you are helping the system as whole get better. There are no faults with any of the hardware in the vehicle and at this time these behaviors are a limitation of software in the system. Our engineering team is working to improve auto pilot with every firmware update and we hope to see improvements in future updates. I'm sorry you feel that was Justin. Future firmware updates will improve functionality. You always have the options of not using your AutoPilot until they do. Thank you

We continue to have issues with Tesla's autopilot feature. The Model 3 with autopilot activated or just with the adaptive cruise control activated, will "phantom" brake for zero reason. Today, 12/14/2021, it happened three times within 90 minutes. All three times there was no reason for the car to make emergency actions. Once I had a truck with a trailer behind me, forcing them to brake hard to avoid hitting the rear of the car. I submitted a service request to Tesla and this is what they told me: Incidents like the one you are describing where the vehicle slowdowns for apparently no reason are generally caused by a few reason such as: Map data inaccuracy, Speed limit data inaccuracies, the vehicle reacting to an upcoming event, GPS position inaccuracies, and predicative driving anomalies. In all of these situations the computer is trying to make the safest determination of what to do with the information that it being fed. To us as drivers, it would seem like a bad decision, but the computer uses our input following these events to get better at predicting how it should respond. Anytime you intervene with an autopilot behavior decision you are helping the system as whole get better. There are no faults with any of the hardware in the vehicle and at this time these behaviors are a limitation of software in the system. Our engineering team is working to improve auto pilot with every firmware update and we hope to see improvements in future updates. I'm sorry you feel that was Justin. Future firmware updates will improve functionality. You always have the options of not using your AutoPilot until they do. Thank you

On a daily basis while using the Adaptive Cruise Control or Tesla Autopilot, I will experience multiple erroneous automatic braking events. The car generally slams the brakes on when it is cresting a hill, attempting to pass a semi truck, or when sun angles produce large shadows in the road. The automatic braking events are sometimes very aggressive and can be extremely dangerous, especially if someone is following behind you in high speed traffic. My wife has requested that I don’t use cruise control or autopilot while she’s in the car, as we experienced an unwarranted, aggressive automatic braking episode which caused great pressure against her pregnant belly on a previous road trip. Additionally, the cameras on my vehicle will often produce warning/error messages stating “X camera is blocked or blinded” for absolutely no reason other than headlights from oncoming traffic shining into my lane. I am unsure if this contributes to the automatic braking issue.

On a daily basis while using the Adaptive Cruise Control or Tesla Autopilot, I will experience multiple erroneous automatic braking events. The car generally slams the brakes on when it is cresting a hill, attempting to pass a semi truck, or when sun angles produce large shadows in the road. The automatic braking events are sometimes very aggressive and can be extremely dangerous, especially if someone is following behind you in high speed traffic. My wife has requested that I don’t use cruise control or autopilot while she’s in the car, as we experienced an unwarranted, aggressive automatic braking episode which caused great pressure against her pregnant belly on a previous road trip. Additionally, the cameras on my vehicle will often produce warning/error messages stating “X camera is blocked or blinded” for absolutely no reason other than headlights from oncoming traffic shining into my lane. I am unsure if this contributes to the automatic braking issue.

My Tesla Model 3 is brand new and delivered in 2021, the vehicle has had no recalls or issues report by the manufacture and is running the latest software updates provided by Tesla, which as of this date is: 2021.36.8 I have driven the car since delivery a total of 5,596 miles, which includes a cross country road trip from CA to FL. During this trip I used "Autopilot" a feature which is touted as safe, however after my experience and reading and hearing other users reports I believe this is not the case. I had numerous cases of "phantom braking" which is where the vehicle believes there is an object that it will collide with and it slams the brakes on, usually dropping around ~20 MPH extremely rapidly. Many of these events occurred in lower light scenarios (night time) and almost all of them occurred when I had no vehicles in any direction for over half a mile, which means that there should have been no indicators flagging an emergency braking event. Here are some other reports, including a well known publisher CNET: https://www.cnet.com/roadshow/reviews/2021-tesla-model-y-review/ The Model Y and 3 share a lot of common design and technical elements, including their lack of a forward radar system, which is think is likely why this issue is occurring for these vehicles and not for the Model S and X. Here is a full user report: https://www.youtube.com/watch?v=uxvh60zBl70&t=1s I am writing this report in order to add myself to a growing list of Tesla customers that have not been listened to about this issue, it is a massive safety issue and should likely trigger a full investigation, this issue can easily be replicated with and 2020-2021 Model 3 and/or Y. And likely should trigger an immediate call for either a software patch, disabling of the feature, and/or recall of all affected vehicles, either to retrofit a radar system, or to fix the camera system.

My Tesla Model 3 is brand new and delivered in 2021, the vehicle has had no recalls or issues report by the manufacture and is running the latest software updates provided by Tesla, which as of this date is: 2021.36.8 I have driven the car since delivery a total of 5,596 miles, which includes a cross country road trip from CA to FL. During this trip I used "Autopilot" a feature which is touted as safe, however after my experience and reading and hearing other users reports I believe this is not the case. I had numerous cases of "phantom braking" which is where the vehicle believes there is an object that it will collide with and it slams the brakes on, usually dropping around ~20 MPH extremely rapidly. Many of these events occurred in lower light scenarios (night time) and almost all of them occurred when I had no vehicles in any direction for over half a mile, which means that there should have been no indicators flagging an emergency braking event. Here are some other reports, including a well known publisher CNET: https://www.cnet.com/roadshow/reviews/2021-tesla-model-y-review/ The Model Y and 3 share a lot of common design and technical elements, including their lack of a forward radar system, which is think is likely why this issue is occurring for these vehicles and not for the Model S and X. Here is a full user report: https://www.youtube.com/watch?v=uxvh60zBl70&t=1s I am writing this report in order to add myself to a growing list of Tesla customers that have not been listened to about this issue, it is a massive safety issue and should likely trigger a full investigation, this issue can easily be replicated with and 2020-2021 Model 3 and/or Y. And likely should trigger an immediate call for either a software patch, disabling of the feature, and/or recall of all affected vehicles, either to retrofit a radar system, or to fix the camera system.

Driving normally, with cruise control (not auto steering) engaged vehicle will spontaneously and dangerously apply emergency breaking. This happens regularly to the point I won’t use it. It’s going to cause accidents, especially when slippery conditions exist.

ADAS systems detect oncoming traffic from the opposing lane on single lane roads and sounds forward collision alarm. If using adaptive cruise control or Autopilot, vehicle will rapidly decelerate. This poses a risk to the occupants and vehicles behind from unexpected changes in speed, which could cause a rear-end accident. The issue can be repeated in the scenario described above. Forward Collision Warning alarm goes off when it sees a oncoming vehicle far off in the distance.

ADAS systems detect oncoming traffic from the opposing lane on single lane roads and sounds forward collision alarm. If using adaptive cruise control or Autopilot, vehicle will rapidly decelerate. This poses a risk to the occupants and vehicles behind from unexpected changes in speed, which could cause a rear-end accident. The issue can be repeated in the scenario described above. Forward Collision Warning alarm goes off when it sees a oncoming vehicle far off in the distance.

ADAS systems detect oncoming traffic from the opposing lane on single lane roads and sounds forward collision alarm. If using adaptive cruise control or Autopilot, vehicle will rapidly decelerate. This poses a risk to the occupants and vehicles behind from unexpected changes in speed, which could cause a rear-end accident. The issue can be repeated in the scenario described above. Forward Collision Warning alarm goes off when it sees a oncoming vehicle far off in the distance.

Vehicle will randomly have phantom braking and braking events when using adaptive cruise control. It happens more often when a vehicle has recently passed and it 150+ feet in front of the vehicle. This poses a safety risk for vehicles behind as the car will randomly slow down. The adaptive function becomes unusable.

Tesla cars are having an issue with phantom breaking which is causing the car to slow down or even slam on the brakes for zero reason. Since I have zero control of how close someone follows me, this is a huge safety issue and makes me fear for my life every time it happens. I drove 60 miles today on two lane roads and this happened at least 6 times. Seems to happen more on two lane roads that aren't flat, but I've had it happen other times too.

My new Tesla 3 deployed automatic emergency braking seven (7) times in a 5 hour period. The Tesla Autopilot was turned off due to reports of phantom braking like this from many other drivers in a Tesla online forum. Regardless, the car slammed on the brakes when there were no obstructions or cars in front of me. I almost suffered a rear end collision during one of these phantom emergency braking events, where the car suddenly braked from 70MPH to less than 40MPH. The malfunctioning component is likely the Tesla software that works with the forward-facing cameras which are installed as part of the Full Self Driving feature. While I did not pay the $10,000 for FSD, this system still operates for automated braking and lane departure. I have requested Tesla inspect the car, which has 482 miles on it, but am filing with you anyway due to the similarity between this experience today and the dozens of other complaints I have read about on the Tesla Owners forum called TOO.

Terrible phantom braking. On a road trip, flat straight open roads, little to no traffic in front of me, and consistent full on hard braking from 75mph down to 35mph in a split second. Multiple times and so consistent I had to stop using the cruise control completely. This never happened like this in my day to day city driving. But as is, the cruise control is nerve wracking and dangerous. Thankfully no cars behind me because it could very easily cause a serious and deadly accident.

Terrible phantom braking. On a road trip, flat straight open roads, little to no traffic in front of me, and consistent full on hard braking from 75mph down to 35mph in a split second. Multiple times and so consistent I had to stop using the cruise control completely. This never happened like this in my day to day city driving. But as is, the cruise control is nerve wracking and dangerous. Thankfully no cars behind me because it could very easily cause a serious and deadly accident.

Terrible phantom braking. On a road trip, flat straight open roads, little to no traffic in front of me, and consistent full on hard braking from 75mph down to 35mph in a split second. Multiple times and so consistent I had to stop using the cruise control completely. This never happened like this in my day to day city driving. But as is, the cruise control is nerve wracking and dangerous. Thankfully no cars behind me because it could very easily cause a serious and deadly accident.

Recurrent, frequent, and unpredictable sudden braking while vehicle is being driven in TACC (Traffic Aware Cruise Control). These event, or "phantom brakes", occur when there is no visible obstruction ahead of the car (i.e. crossing vehicle or object), nor any environmental explanation (sun glare, heavy rain, etc.). Events occur in all conditions, including daytime, clear sky, with or without traffic. Frequently the collision warning will sound during these events. Given the episodes occur during highway driving, the unexpected hard braking is a set-up for being rear ended by cars behind me. These events are most common on 2 lane divided highways, and can occur as frequently as every 2-5 minutes. Brought in for evaluation at Tesla service center, and they refused to acknowledge any problem, stating the car is "operating as designed." This was based on the fact that they did not reproduce symptoms on their test drive. Although I had logged >20 of these events for them to review on the automated records, it was not clear this was done.

Recurrent, frequent, and unpredictable sudden braking while vehicle is being driven in TACC (Traffic Aware Cruise Control). These event, or "phantom brakes", occur when there is no visible obstruction ahead of the car (i.e. crossing vehicle or object), nor any environmental explanation (sun glare, heavy rain, etc.). Events occur in all conditions, including daytime, clear sky, with or without traffic. Frequently the collision warning will sound during these events. Given the episodes occur during highway driving, the unexpected hard braking is a set-up for being rear ended by cars behind me. These events are most common on 2 lane divided highways, and can occur as frequently as every 2-5 minutes. Brought in for evaluation at Tesla service center, and they refused to acknowledge any problem, stating the car is "operating as designed." This was based on the fact that they did not reproduce symptoms on their test drive. Although I had logged >20 of these events for them to review on the automated records, it was not clear this was done.

Whenever TACC (cruise control) is engaged and the car is on a two lane highway with no divider, it will aggressively brake and trigger the collision warning system when a semi-truck passes going the opposite direction.

While using autopilot feature on interstate highway the vehicle independently applied braking while traveling at 70 mph although no other vehicle nor any other physical object was observed. Also while using the same feature and traveling on a two lane highway at 55 mph the car independently applied braking when an large truck approached in the opposite on-coming lane. This exact event happened a second time when another large truck while traveling the same two lane highway. Autopilot was no longer used.

The “traffic aware cruise control” feature is flawed to the point of being unusable add dangerous. My Model 3 (leased in late September 2021) exhibits very frequent “phantom braking” problems when TACC is active. Some are mild, the car applying the brakes and slowing down despite the absence of nearby cars or hazards. Some are dramatic, the car slamming on its brakes and sounding an alarm — again, with no hazards. I have a service appointment scheduled for Dec 3 but I’m not optimistic.

The “traffic aware cruise control” feature is flawed to the point of being unusable add dangerous. My Model 3 (leased in late September 2021) exhibits very frequent “phantom braking” problems when TACC is active. Some are mild, the car applying the brakes and slowing down despite the absence of nearby cars or hazards. Some are dramatic, the car slamming on its brakes and sounding an alarm — again, with no hazards. I have a service appointment scheduled for Dec 3 but I’m not optimistic.

For the past week, my car phantom braked with no obvious danger from a parked car. It just happens on a city road, not a freeway. Ithappened about 4 times

TRAFFIC AWARE CRUISE CONTROL WHILE CRUISE CONTROL IS OPERATING, DRIVING AT 70 MPH OR HIGHER, FOR NO APPARENT REASON, NO VEHICLES AHEAD OF ME, THE CAR BRAKES SUDDENLY. THIS HAPPENED AT LEAST SIX TIMES ON A 1000 MILE TRIP. IF A CAR HAD BEEN FOLLOWING TOO CLOSELY, MY SUDDEN BRAKING COULD HAVE CAUSED AN ACCIDENT. I HAVE NOT FIGURED OUT HOW TO CONTACT TESLA ABOUT THIS. NO ONE HAS INSPECTED MY CAR. THERE WERE NO WARNING SIGNS. AFTER I GOT HOME, I GOOGLED THE PROBLEM AND SAW THAT OTHERS HAD EXPERIENCED IT TOO. I'M WRITING IN THE HOPE THAT YOU WILL TELL TESLA TO FIX THE PROBLEM, OR AT LEAST TO OFFER THEIR CUSTOMERS PLAIN CRUISE CONTROL WITHOUT THE TRAFFIC AWARE FEATURE. THIS HAPPENED EVERY TIME I WAS ON THE INTERSTATE FOR MORE THAN A COUPLE HOURS, MOST RECENTLY ON OCTOBER 31, 2021.

Traffic Aware Cruise Control in the 2021 Model 3 is down right dangerous. Constant random braking for no reason at all. Happens multiple times if I use TACC on 2 lane roads. Happens nearly every time I use TACC on a 4 lane road. If I have traffic behind me I cannot use TACC at all for fear I would be rear ended.

Traffic Aware Cruise Control in the 2021 Model 3 is down right dangerous. Constant random braking for no reason at all. Happens multiple times if I use TACC on 2 lane roads. Happens nearly every time I use TACC on a 4 lane road. If I have traffic behind me I cannot use TACC at all for fear I would be rear ended.

Traffic Aware Cruise Control in the 2021 Model 3 is down right dangerous. Constant random braking for no reason at all. Happens multiple times if I use TACC on 2 lane roads. Happens nearly every time I use TACC on a 4 lane road. If I have traffic behind me I cannot use TACC at all for fear I would be rear ended.

"Traffic Aware Cruise Control" (aka Autopilot) applied full braking and sounded collision warning when no collision was imminent. Had traffic been following closely, a rear-end collision could have occurred. Several other similar "ghost braking" incidents have occurred but this was the worst and most dangerous. Vehicle has not yet been taken to a repair facility. Vehicle has not needed inspection by law enforcement nor insurance company.

While driving on C-470 westbound going 70 MPH with the car on Autopilot, the car braked hard dropping the speed to 40 MPH. If a car would have been behind me, they would have hit the back of my car. This issue is happening frequently, from neighborhood side streets, city streets, and on the interstate highway.

While driving on C-470 westbound going 70 MPH with the car on Autopilot, the car braked hard dropping the speed to 40 MPH. If a car would have been behind me, they would have hit the back of my car. This issue is happening frequently, from neighborhood side streets, city streets, and on the interstate highway.

While driving on C-470 westbound going 70 MPH with the car on Autopilot, the car braked hard dropping the speed to 40 MPH. If a car would have been behind me, they would have hit the back of my car. This issue is happening frequently, from neighborhood side streets, city streets, and on the interstate highway.

Starting in June 2021, Tesla removed the radar sensing on their vehicles and switched to a vision-only (camera) system for adaptive cruise control and "auto pilot" operation. On my 2021 Model 3 Performance, I can not use either system without constant "phantom braking" events. Sometimes it will only gently pulse the brake pedal, but often it is very hard braking along with a beep and message on-screen saying I need to take immediate control of the car. This happens daily and is not hard to reproduce. If there is a car behind you, it can be quite dangerous. Even if they don't rear end you, often it will cause them to think you're doing a "brake check" and can lead to road rage incidents. My previous car (a 2018 Model 3 RWD) had a radar sensor and experienced mild (not hard) phantom braking roughly 2~3 times over an 18 month period. I still have access to that car and recently tested it for comparison. Even on the same software revisions, the old car drove flawlessly on ACC and Autopilot modes.

I have been experiencing very frequent adaptive cruise control breaking for no reason. It is getting worse with every software update. It seems like the car is very scared of oncoming traffic and will hit the breaks or slow down for no reason. Sometimes there will be no traffic at all and it happens. If a car is following closely I’m afraid I will be hit. I wish I could turn off adaptive cruise control but there is no option. This is a serious safety issue.

I have been experiencing very frequent adaptive cruise control breaking for no reason. It is getting worse with every software update. It seems like the car is very scared of oncoming traffic and will hit the breaks or slow down for no reason. Sometimes there will be no traffic at all and it happens. If a car is following closely I’m afraid I will be hit. I wish I could turn off adaptive cruise control but there is no option. This is a serious safety issue.

I was using auto pilot. The road was pretty empty single lane road. There was no car in front of me or coming in opposite direction. The car automatically slammed the brake pretty hard. We were lucky enough no one rear ended us. Looks like a software bug in Tesla. Please investigate. I will never ever again use this [XXX] auto pilot and risk my family life. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Autopilot constantly brakes due to automatic emergency braking on two-way highways at night. Every time a car passes in the other direction, the car starts braking, often as soon as the headlights are visible. This is a significant safety issue and resulted in me disabling AEB, which re-enables automatically every time I drive. I needed to go out of my way and ensure no one was tailing me because the car would brake check them. This wasn't an isolated incident. Every time I've been on a two way highway and sometimes even on multi-lane unlit highways, I have these braking issues constantly. I was driving under the speed limit.

When driving using the traffic aware cruise control, the vehicle experiences frequent abrupt and random rapid deceleration. This causes a safety issue when other vehicles are behind due to the rapid change in speed. Occasionally the vehicle will produce a forward collision warning with nothing in the path of the vehicle. This makes the cruise control function less usable and no option to disable the adaptive function.

When driving using the traffic aware cruise control, the vehicle experiences frequent abrupt and random rapid deceleration. This causes a safety issue when other vehicles are behind due to the rapid change in speed. Occasionally the vehicle will produce a forward collision warning with nothing in the path of the vehicle. This makes the cruise control function less usable and no option to disable the adaptive function.

When driving using the traffic aware cruise control, the vehicle experiences frequent abrupt and random rapid deceleration. This causes a safety issue when other vehicles are behind due to the rapid change in speed. Occasionally the vehicle will produce a forward collision warning with nothing in the path of the vehicle. This makes the cruise control function less usable and no option to disable the adaptive function.

Car hits the brakes and activates the emergency braking and forward collision warning very frequently (10+ instances during a 1 hr drive) in instances that absolutely do not warrant it (no obstacles or cars in the lane of traffic). Product is unsafe in the condition that it is in, and car offers no way to revert to standard cruise control. This type of automatic behavior could cause accidents.

Car hits the brakes and activates the emergency braking and forward collision warning very frequently (10+ instances during a 1 hr drive) in instances that absolutely do not warrant it (no obstacles or cars in the lane of traffic). Product is unsafe in the condition that it is in, and car offers no way to revert to standard cruise control. This type of automatic behavior could cause accidents.

Car hits the brakes and activates the emergency braking and forward collision warning very frequently (10+ instances during a 1 hr drive) in instances that absolutely do not warrant it (no obstacles or cars in the lane of traffic). Product is unsafe in the condition that it is in, and car offers no way to revert to standard cruise control. This type of automatic behavior could cause accidents.

Vehicle slams brakes on with on coming traffic when cruise control activated. Have attempted to contacted Tesla several times. Tesla actually canceled a mobile service stating they did an update to fix the issue. It did not. In fact it made the problem worse. The are not answering my emails or texts, calling the service line does no good the say they can’t see the issue in their data

When I use cruise control, the car will brake suddenly sometimes very fast or moderate braking. There is no reason for the car to break. It happens on 2 lane roads and 4 plus lanes. I can not determine if tree shadows cause it. It often breaks when a car is coming from the opposite direction on a curve. It also breaks during the night on a 2 lane road when a car comes from the opposite direction. Sometimes it has freaked so hard that if anything is on the seat, it is thrown toward the floor. I fear I could be hit from behind due to unnecessary braking, so I will only use cruise control if there is little or no traffic on on roads with 4 or more lanes.

I noticed you have a recall for SOME Teslas about a glitch with the auto braking after latest Beta FSD rollout. My Tesla has had this since day one, and I don't have or use FSD. I do use the adaptive cruise control, and that is when I have problems with my car slamming on the brakes for no reason. I have been lucky, 3 times I have ALMOST, been rear-ended. I have had it in the shop a couple times for the issue, and they tell me to read the manual and the car is fine. I have talked with 5 other Tesla owners, and they have all had the problem of their car slamming on the brakes for no REAL reason. I think the GLITCH is a bigger problem than Tesla is willing to admit, and applies to most Tesla cars. there are even website forums about, "Phantom Braking", which is lingo for the same thing

System erroneously sounded forward collision warnings about once per minute. Automatic Emergency braking faulted and could not be enabled. Firmware version 2021.36.5.2

System erroneously sounded forward collision warnings about once per minute. Automatic Emergency braking faulted and could not be enabled. Firmware version 2021.36.5.2

My vehicle is a "Tesla Vision Only" (non-radar) Model 3 on firmware 2021.32.21 although this issue occurred on other firmware I've used as well. At night the car will very very frequently brake 3-10 miles an hour for no reason. It's specifically bad at night. It regularly thinks the ongoing traffic is headed in my lane. It regularly slows me down significantly before the top of a hill. Sometimes this can happen 3-5 times in succession within 5 minutes and causes other drivers to react to my vehicle as if it were dangerous. My only recourse is to tap the accelerator as quickly as I can to override the braking or not use the cruise control. This happens mostly on two lane two way traffic roads, often with gentle curves, and worst at night. I now have a car without even "dumb" cruise control. This is not what you think you're buying when you get a brand new $50k vehicle. When I originally received the vehicle in June I had brought up my experience to a technician while they were servicing the vehicle for other purposes they told me that there doesn't appear to be anything wrong with the camera system and that with more firmware updates it would get better. It is not better, I'd say it's gotten worse since I bought the vehicle.

The vehicle will suddenly brake with no discernible obstacles when advanced cruise control is engaged. We experienced multiple “phantom braking” events during an 800+ mile road trip (round trip) last week, which was so frequent and unpredictable that autopilot and autosteer (Tesla’s terms) are unsafe to use. The first half of our trip was on two-lane highways and the car would brake heavily on clear roads and triggered two emergency accident avoidance events when large pickups were approaching in the opposite lane (screen showed a vehicle in red in our lane, audible alarms + heavy braking). The braking was so sudden that we were almost rear ended twice. We chose a different route to return home on a divided interstate, hoping that the TACC system would work. It did not. The car would brake dramatically when we went over a small rise, there was a vehicle in our lane at a significant distance (.5-1.0 mile), or sometimes completely unpredictably. During these events, our speed would drop suddenly more than 20mph. It is an unsafe system to use in even light traffic.

The vehicle will suddenly brake with no discernible obstacles when advanced cruise control is engaged. We experienced multiple “phantom braking” events during an 800+ mile road trip (round trip) last week, which was so frequent and unpredictable that autopilot and autosteer (Tesla’s terms) are unsafe to use. The first half of our trip was on two-lane highways and the car would brake heavily on clear roads and triggered two emergency accident avoidance events when large pickups were approaching in the opposite lane (screen showed a vehicle in red in our lane, audible alarms + heavy braking). The braking was so sudden that we were almost rear ended twice. We chose a different route to return home on a divided interstate, hoping that the TACC system would work. It did not. The car would brake dramatically when we went over a small rise, there was a vehicle in our lane at a significant distance (.5-1.0 mile), or sometimes completely unpredictably. During these events, our speed would drop suddenly more than 20mph. It is an unsafe system to use in even light traffic.

The vehicle will suddenly brake with no discernible obstacles when advanced cruise control is engaged. We experienced multiple “phantom braking” events during an 800+ mile road trip (round trip) last week, which was so frequent and unpredictable that autopilot and autosteer (Tesla’s terms) are unsafe to use. The first half of our trip was on two-lane highways and the car would brake heavily on clear roads and triggered two emergency accident avoidance events when large pickups were approaching in the opposite lane (screen showed a vehicle in red in our lane, audible alarms + heavy braking). The braking was so sudden that we were almost rear ended twice. We chose a different route to return home on a divided interstate, hoping that the TACC system would work. It did not. The car would brake dramatically when we went over a small rise, there was a vehicle in our lane at a significant distance (.5-1.0 mile), or sometimes completely unpredictably. During these events, our speed would drop suddenly more than 20mph. It is an unsafe system to use in even light traffic.

Tesla: 2021 Model 3 (Standard w/Full Self-Driving Capability) Vehicle Safety Issues as of August 09, 2021: 1. Vehicle does not have interior rear manual door release to allow rear seat occupants to escape in case(s) of emergency or vehicle electrical power failure 2. Vehicle does not have an exterior manual release for all doors in order to allow first responders the ability to assist or rescue vehicle occupants and/or driver 3. Vehicle doe not provide regenerative charging of 12V batter used as the only primary source of power to operate all Onboard Computer and Diagnostics, as well as electronics 4. Vehicle does not provide redundancy to operate Onboard Computer and Diagnostics or to maintain the electronics in order to allow vehicle to keep satellite contact or radio beacon 5. Vehicle does not have a mechanical locking system and is unable to be opened in the event of failure of the 12V battery 6. Vehicle does not have any audible seatbelt warning 7. Vehicle does not shift into Park or Neutral when drivers door or passenger doors are open 8. Vehicle interior parts and exterior parts are not securely fastened or reasonably installed to a standard that provides protection to occupants in cases of side impact, rear impact, and frontal collisions 9. Vehicle does not adequately provide secure installation or covering of Side-curtain Airbags, as well as a poorly designed tether that can easily be pulled triggering the Airbags gas canister 10. Vehicle does not have any audible seatbelt warning 11. Vehicle does not shift into Park or Neutral when drivers door or passenger doors are open 12. Materials used in vehicle are both flammable and gaseous, as well as produce a toxic smell when ignited 13. Vehicle "Panoramic" glass roof provides UV protection and actually absorbs heat 14. Vehicle does not feature adequate detection of: moving objects(pedestrians, bicyclist) 15. Vehicle is unable to safely navigate streets or highways with out solid lines or objects to follow

Automatic cruise control (autopilot) has twice failed to decrease speed when it should have. The vehicle will also brake at a moderate to high rate on the highway with zero warning or message, with no obstacle or vehicle on the road, creating a dangerous situation with following vehicles. ACC also requires the use of automatic wipers and automatic high beams, both of which activate at random times and thus encourage their disuse (e.g. sunny clear day, or with obvious traffic in front of the vehicle, respectively). Automatic high beams turning on and flashing when they shouldn't is unsafe for other drivers. Finally, the use automatic wipers and high beams is not listed as a requirement for active safety features such as FCW and AEB to function. However, these two critical safety systems rely on the same camera array and systems with problematic functionality described above. It's hard to believe that these actual safety systems, listed as a feature of the vehicle, are able to function as required when the full array of sensors and logic, shared with autopilot, are unable to perform reliably.

Automatic cruise control (autopilot) has twice failed to decrease speed when it should have. The vehicle will also brake at a moderate to high rate on the highway with zero warning or message, with no obstacle or vehicle on the road, creating a dangerous situation with following vehicles. ACC also requires the use of automatic wipers and automatic high beams, both of which activate at random times and thus encourage their disuse (e.g. sunny clear day, or with obvious traffic in front of the vehicle, respectively). Automatic high beams turning on and flashing when they shouldn't is unsafe for other drivers. Finally, the use automatic wipers and high beams is not listed as a requirement for active safety features such as FCW and AEB to function. However, these two critical safety systems rely on the same camera array and systems with problematic functionality described above. It's hard to believe that these actual safety systems, listed as a feature of the vehicle, are able to function as required when the full array of sensors and logic, shared with autopilot, are unable to perform reliably.

Automatic cruise control (autopilot) has twice failed to decrease speed when it should have. The vehicle will also brake at a moderate to high rate on the highway with zero warning or message, with no obstacle or vehicle on the road, creating a dangerous situation with following vehicles. ACC also requires the use of automatic wipers and automatic high beams, both of which activate at random times and thus encourage their disuse (e.g. sunny clear day, or with obvious traffic in front of the vehicle, respectively). Automatic high beams turning on and flashing when they shouldn't is unsafe for other drivers. Finally, the use automatic wipers and high beams is not listed as a requirement for active safety features such as FCW and AEB to function. However, these two critical safety systems rely on the same camera array and systems with problematic functionality described above. It's hard to believe that these actual safety systems, listed as a feature of the vehicle, are able to function as required when the full array of sensors and logic, shared with autopilot, are unable to perform reliably.