2024 TESLA MODEL 3 Lane Departure Problems

In early 2025, while reversing the vehicle, the backup camera proximity alert system failed to provide audible warnings of an obstacle. The visual display worked, but the system provided no beeping or audible alerts as I reversed toward a pole in the vehicle's blind spot, even though I was within the range where warnings should have been activated resulting in over $4K in damages. The same alert failure happened on 10/23/25 as I backed out of a parking space. I no longer live in the local area, but reported the safety issue in person during a visit on August 27, 2025. The acting service manager told me to expect a response in 10-14 days. After not hearing back, I followed up via the app on September 28, 2025. When I received a response on October 2, 2025, I was told my request is beyond the timeframe of when this could be inspected (30 days). The vehicle is covered under Tesla's 4-year/50,000-mile New Vehicle Limited Warranty, which covers defects in materials and workmanship. A failed backup camera system is precisely such a defect. California Song-Beverly Act: California's lemon law (Civ. Code § 1790 et seq.) requires manufacturers to repair defects covered by warranty. There is no 30-day reporting requirement under CA law. Federal Safety Standards: The backup camera is required safety equipment under 49 CFR 571.111. A malfunctioning backup camera renders the vehicle non-compliant with federal safety standards. Presumption of Manufacturing Defect: Under California law, defects occurring within 18 months/18,000 miles are presumed to be manufacturing defects (Civ. Code § 1793.2(d)(2)). This accident was well within that window. When I reported this defect to Tesla, they initially refused to: Conduct a safety inspection of the proximity alert/parking sensor system Retrieve diagnostic data or video footage to verify the system failure Test or repair the defective equipment under warranty As of 10/30/25, the local dealer agreed to a vehicle inspection

On October 17, 2025, while Full Self-Driving (Supervised) was engaged, the vehicle made an abrupt, uncommanded steering input to the right, causing a collision with a tunnel wall. This crash appears to be the result of a critical vehicle hardware failure. In the 24 hours prior to the crash, the vehicle logged multiple critical steering errors, including EPAS3P_a086_dasMia, which indicates the Electric Power Assisted Steering system was "Missing in Action" and not communicating. Furthermore, the vehicle has logged daily, recurring hardware faults for the Steering Column Control Module (SCCM_a016_hardwareError) since it was purchased. The uncommanded steering action created an extremely dangerous safety condition resulting in a collision. All stability and traction control faults appeared at the exact moment of impact, not before, indicating the steering system failure was the root cause. The problem has been confirmed by the vehicle's own internal diagnostic logs. The vehicle is available for inspection.

Subject: FSD lane-selection issues at three specific Santa Clara locations Vehicle: [2024 Model 3], software [2025.32.8], FSD [v13.2.9] 1) 2025-10-12 [approx time 6:30pm PT] – Westbound [XXX] crossing [XXX] . Expected: proceed straight in through lane. Observed: FSD moves into left-turn lane to cross [XXX] . 2) 2025-10-12 [approx time 1pm PT] – Southbound toward [XXX] . Expected: choose left-turn lane. Observed: FSD sometimes stays in straight-through lane when attempting a left turn. 3) 2025-10-12 [approx time 4pm PT] – [XXX] exit to [XXX] approaching [XXX]. Expected: merge left lane before making a left turn. Observed: FSD sometimes stops at green in the through lane after failing to merge left. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Tesla has told me the AP4 computer has failed in my car which has resulted in them having to replace it. This issue impacts: emergency braking, blind spot detection, lane keep/centering, assisting with parking, automatic high beams and wipers, cruise control/ adaptive cruise control, Vehicles built in GPS to be stuck at one location every time, has made my touchscreen not automatically brighten or dim, my auto dimming mirrors be too dim in most driving conditions, constantly fail to install system improvements and safety updates, and because my vehicle keeps trying to do this, it has caused increased battery drain as well. This has increased the safety risk of my vehicle tremendously... Tesla has not seemed to publicly acknowledge the issue yet either.

See attached document for complaint.

Have to swerve the vehicle back and forth to get the alarm to shut off.

Driver set cruise control has FSD imbedded that causes the vehicle to slow down drastically on its own. The car has brake tested several following vehicles so far. I’ve seen this before many times of other Teslas but thought it was the driver and now I know it was not. This causes a chain reaction of braking and smoking tires. I am positive this has created accidents but the ones involved have no idea how it started many vehicles ahead. The lane keep assist pillar cameras do not work in the dark, this has taken me by surprise already. The phantom braking on highways is awful, it is so bad that I am afraid to drive in the winter. The torque of the wheel sensor is not safe, when auto steer disables it can take you by surprise causing you to swerve into on coming traffic. The car accused me of using a cheat device one time so I decided to try it and surprisingly I found that it is actually much safer than using my body weight. These are extremely unsafe for busy traffic and slippery roads. I have videos showing it and will get more.

My wife and I recently purchased a new 2024 model 3 Tesla with the Autopilot and Full Self-Driving feature. We chose this vehicle because my wife has a long daily commute and we wanted to make the drive easier for her. We test drove a similar model in early August. When we were testing the Full Self-Driving feature, the car failed to safely exit the freeway three times in our short test drive, causing my wife to have to take over. Both times, the car seemed to become confused by traffic cones as it prepared to exit the freeway, causing it to either miss the exit or to change lanes rapidly and unexpectedly, nearly colliding with other vehicles. When we reported this to the employees at the Tesla dealership, we were told that the car needed a software update to address the issue. It is now a month later and we received our vehicle a couple of weeks ago. I have not heard of the release of any software update addressing the issue we experienced. Given that this is the exact feature that prompted us to purchase the car and our intention was to make things safer for my wife, not the other way around, I would very much like to find out when this will be addressed. There are many drivers who currently use the Full Self-Driving feature and I am concerned that it is extremely unsafe.

My wife and I recently purchased a new 2024 model 3 Tesla with the Autopilot and Full Self-Driving feature. We chose this vehicle because my wife has a long daily commute and we wanted to make the drive easier for her. We test drove a similar model in early August. When we were testing the Full Self-Driving feature, the car failed to safely exit the freeway three times in our short test drive, causing my wife to have to take over. Both times, the car seemed to become confused by traffic cones as it prepared to exit the freeway, causing it to either miss the exit or to change lanes rapidly and unexpectedly, nearly colliding with other vehicles. When we reported this to the employees at the Tesla dealership, we were told that the car needed a software update to address the issue. It is now a month later and we received our vehicle a couple of weeks ago. I have not heard of the release of any software update addressing the issue we experienced. Given that this is the exact feature that prompted us to purchase the car and our intention was to make things safer for my wife, not the other way around, I would very much like to find out when this will be addressed. There are many drivers who currently use the Full Self-Driving feature and I am concerned that it is extremely unsafe.

The right scroll wheel used to turn on/off adaptive cruise and lane centering doesn't register inputs every time the button is pressed in. This makes turning the system on and off unpredictable and dangerous.

While driving in the right lane of an Interstate using Full Self Driving (Supervised) mode (version 12.3.6), I was behind a motorcycle that was traveling slower than I. FSD was gaining on the motorcycle, but failed to move to the passing lane. I had to disengage the system so that the car didn't get too close to, or strike, the motorcycle. I manually moved to the passing lane and reengaged FSD. The car eventually decided to move to the right lane, behind the motorcycle. Again, it was gaining on the motorcycle and got too close, so I once again had to disengage FSD. It seems like the system didn't recognize the motorcycle or didn't recognize that it was traveling than slower than my vehicle.

Incident Description: One week after purchasing our new Tesla Model 3 2024 , we encountered several error messages upon returning to our car after a brief stop: "APP_w264 - Lane Departure Avoidance feature unavailable," "GTW_w075 - Steering assist reduced," and "UI_a020 - Steering assist reduced." With no cell signal available, we had to drive back slowly with hazard lights on. The steering was extremely tight, making it very difficult to maneuver. Tesla Roadside Assistance suggested towing the car and using an Uber coupon, which was impractical due to our location in the outskirts of Vancouver, Canada, with no Uber services, and our home in Seattle, USA.We drove over 100 miles to the nearest service centre in Vancouver, posing a significant safety risk on curvy freeway roads. The service centre confirmed that the wire supplying power to the steering was cut due to contact with the fan, and they repaired the issue. Conclusion: The steering failure of our Tesla Model 3 was a major safety concern. Driving with impaired steering could have led to a severe accident. The issue was due to a design flaw, with the wire contacting the fan. We request a thorough investigation to prevent future occurrences and consideration for the inconvenience and risk we faced. Component/System Failure: The wire supplying power to the steering mechanism was severed due to contact with the vehicle's fan. Safety Risk: The steering became extremely tight, making large turns nearly impossible and small turns very difficult. This posed a significant safety risk, especially while driving on curvy freeway roads. Inspection & Problem Confirmation: The problem was confirmed by the Tesla service centre in Vancouver. They verified that the wire was cut due to contact with the fan. Errors: "APP_w264 - Lane Departure Avoidance feature unavailable" "GTW_w075 - Steering assist reduced" "UI_a020 - Steering assist reduced"