2024 HONDA PROLOGUE Electrical System Problems

I was driving and both screens went completely black. Vehicle was charged to over 80%. I could not see speed or any other vehicle information on either screen. After about 5 seconds the screen above the steering wheel started to load back up and then the other screen followed.

Leased this car 1 year ago and it is currently in the repair shop for the 2nd time in a year for the same battery problem: battery won't charge and an error notice on the dashboard that says " Service high voltage system. Reduce acceleration. Drive with care". The first time the shop said that it was a software issue and fixed it. Now the shop is saying that the car needs a new battery. The error notice came up while I was on a road trip and I felt unsafe knowing that the battery could fail or combust while driving. Also, I did not feel safe having the reduced acceleration in effect while I was on the freeway where acceleration can be essential to match traffic and evade accidents.

This car presenta High Voltage Issue, I bring the car to the services 3 times. AND i see online a lot of people with the same problem

Main screen that operates the vehicle shuts off periodically and will not return on. Upon restart multiple times the screen will partially open and appear on but touch screen features does not work. This prevents the driver from accessing the radio, turn lights on, turn fog lights on off, change charge settings, and accessing all vehicle safety and non-safety related items. Car does still drives despite not having a functional and operational screen. Dealer has been notified and service appointment set for 12/29.

Went to start vehicle and warning light was present on main screen signaling HIGH VOLTAGE SYSTEM ERROR. I called the local Honda service team who had me check to see if the car would charge. The tech said n the phone was concerned that the battery could be “bricked” meaning in non-operational status. The car did indeed charge and drove it immediately down to service adviser per his recommendation. Honda service team determined that an AC line was dripping on electrical components. The Honda service team was able to fix stated issue.

Two weeks ago, an alert appeared stating that the charge port door was open. The door was closed and no amount of opening and closing the door would stop the alert from repeatedly appearing. After about 2 hours, a new alert would appear either before or after the the alert for the charge door. The new alert told me to service the high voltage charging system. The issue has been confirmed with the dealership, however, they refuse to fix the problem under warranty because they state that the issue is the internal position sensor for the charging port door and that is not one of the more common causes of this, apparently, very common issue with this vehicle. Considering the volume of complaints about this issue, I find that hard to believe and refused to pay for a known issue with the Prologue. Most other owners with the issue have found that despite being told by the dealership that the sensor was the issue, it was actually the AC or battery that was the problem. This is a safety issue because something is wrong with the charging system of an EV, which can eventually cause a major defect in the vehicle and Honda won't fix it under warranty.

I was driving my car and suddenly I received high voltage battery warning and I had to stop my car in between of freeway.

My 2024 honda prologue was brought in to service a battery failure light and get a clicking noise in the front axel looked at when turning. The light was a red on the dash shaped like a car with an exclamation point. Dealer claimed that the multiple codes were nothing and that the car needs a new audio system. Not sure how audio systems = battery failure but i digress. I was told my car is safe to drive so I picked it up, they have still not made any repairs as the audio system is on back order. The morning after i picked it up, the heater started blowing ice cold air, in 10 degree weather. Immediately returned to the dealer where they are saying they don’t know what’s wrong with it and they think it is still safe to drive

While driving at freeway speeds, a red check engine warning appeared along with a “Service High Voltage System” message. Immediately afterward, the vehicle’s heater stopped working, causing the windshield to fog up. I had to pull over safely and manually clear the windshield before driving the vehicle to the dealership.

I have had multiple issues with this vehicle and it has been in the shop more than 80 days between April and Oct 2025. First, the entire battery system went out in the all electric vehicle. Honda said that since it was a collaboration car with GM, that it would take a long time to fix because their technicians weren’t very familiar. It took almost 8 weeks in the shop before we got it back. Not long after, the entire dash (electronics) went out and the shop had it again for over a week. they never found or could replicate the issue. The vehicle went back in after having multiple incidents of emergency braking when there was no emergency, or even vehicles in my vicinity. The final time this happened, I was traveling nearly 25 miles per hour and the car decided to slam on the brakes, making me feel like I hit a brick wall. My head slammed the steering wheel and my daughter was terrified. I drove it straight to the dealership and they said “what’s wrong with the car this time”…they had it for weeks, couldn’t replicate the issue and tell me it’s fine and to take it home. They suggest TURNING OFF THE SAFETY STSTEM AS A FIX, which seems criminal. The safety features should work properly. I shouldn’t be instructed to turn them off. I am very frustrated and have been working with Honda on a buy back out of good faith, but it’s been weeks and we have no answer. I am forced to drive a gas vehicle, costing me gas money now, when I bought an electric vehicle to avoid this cost. All around, it has cost me more money than it’s been worth and I’ve made multiple car payments as it’s sat at a dealership unusable. Again, it has spent more than 80 days in 6 months at the dealer with no resolution. My sound system blew out last time they had it checking out the braking issue so I waited another week to have that replaced, meanwhile the fix to the braking system was that I was told to turn the safety feature off. Insane

Service High Voltage System alarm + Service Vehicle Soon alarm warning. This with no heat while driving at 10,836 miles. Took in to dealer for service and reportedly a known problem with the freon system and end cap. My thought is this should be a recall fix by Honda/GM because there are many many complaints of it amongst 2024 Prologue Owners.

Been hearing a clicking noise from my front end of the prologue for quite some time. Keep having it written off that it’s nothing. However I see people having complaints and getting the vehicle serviced. Also my charger door compartment has been replaced 2x and is almost headed in for a third replacement. Buy back investigation has been launched by Honda. No news since July

Car shows a turtle image on dash and will not go faster than 30mph nor will it fully charge without dealer intervention. This happens when it's cold. There's also a clicking sound when turning as well that's a whole other issue.

The contact owns a 2024 Honda Prologue. The contact stated that while driving approximately 65 MPH, there was an abnormal clicking sound coming from the instrument cluster, and the instrument cluster went black. The contact then drove the vehicle to a local dealer; however, the vehicle was not yet diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 8,000.

Mileage: 8,000

Service high voltage system light/notification has come on three times since we got it last September 2024. The first time the light came on we heard lots of clicking leading up to the notification. The second time there wasn’t anything noticeably wrong besides the light coming on. The third time the heater wouldn’t heat the air coming in, it stayed cold. Then when trying to charge the car wouldn’t go past 27%.

Car has about 7k miles on it, the axles were changed about 3k miles ago, they are clicking and making bad noises again and will need to be replaced again. Also, AC motor went out when almost new, and it was replaced.

Turned on the heat and immediately got these messages. “Service High voltage system. Reduced acceleration drive with care”. Car will not charge now.

Cv joints clicking. Local Honda service department is aware of the problem, but no fix for it. Service high voltage battery with reduced power. This just came up that limits driving. Heater stopped working. Infotainment center will black out on and off every time I turn on the car. Very dangerous when I forget and I’m backing out of my garage.

ve had the 2024 Honda Prologue in for repair for service high voltage system 5 times. The car was purchased on 20 Jan 25, the first time was on 17March 25 and the car had 1880 miles, the second time was on 13 Oct 25 and the car had 7141 miles, the third time was on 23 Oct 25 and the car had 7357 miles, the 4th time was on Nov 3 and the car had 7421 miles,the 5 times was on 17 Nov 25. With the service high voltage system problem it affects the charging ability of the car, the max charge I can get is 25% which vives me a driving range of 70 miles. When the car was in for the 5th visit they also had to replace the driver side front axel because of bad cv joint,they also found the passangers side front axle was s also bad but could not replace it because of back order on parts with no ETA. Both of thse a re safety issues, not knowinf if the front end might collapse or if I get the service high voltage system warning when I am not near a charging facility. I feel that I am a prisoner to this car and am afraid to drive it far from home. What I understand is that Honda is not making any serious effort to fix these problems. i beleive it will take a few deaths before Honda steps up and takes responsibility.

Dashboard warning "High Voltage System Service Soon" came on while driving. Phoned dealer. Made service appointment. Started car and warning notice had disappeared. Drove car to dealer, who checked and told me there were "multiple error codes relating to various electrical issues" and "the case is going to be elevated to Honda's tech/engineering team." The car will be at the dealership for 7 days at this point.

I got my honda prologue in may 2024, brand new. I have since had it into the shop about to be for the 2nd time due to clicking when i turn . CV JOINTS . they replaced all of them in 9/25 and now again in 11/25... not even 3 months later. I currently also have issues with the mileage, i used to get 260 when i would charge to 80% not i only get 230 if i am lucky. Also , my temp gauges tend of be wrong. along with my mileage showing i have more than i start driving and it goes down by 10-15 miles.... This car is worthless and the constant issues witht he CV JOINTS needs to be recalled so our cars can get bought back .. this is causing more issues for the owners than it needs to be

The contact owns a 2024 Honda Prologue. The contact stated that while driving at an undisclosed speed and making a turn, the vehicle made abnormal clanking and grinding sounds. The message "Drive with Caution - Acceleration Decreased" was displayed. Additionally, the heater was inoperable, and the battery failed to charge above 25 percent. The vehicle was taken to the dealer, who replaced the front axles four times and serviced the battery; however, the failure persisted. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 2,000.

Mileage: 2,000

Both screens went black during drive - no visuals for mph, safety features including blind spot assist, pedestrian signal and back up camera are included not working. When vehicle is off the radio is still playing. Soft reset did not work. This is second time this has happened. I am taking it to dealer for a hard reset - hopefully this works.

Vehicle charge will drop signficatinally when parked for over night. Car was charged to 100 % then dropped to 92% overnight. Car only gets 50-60% of mileage stated from the dash and app. Car has 3997 miles on it, yet as has charge history shows it has been charged enough throughout history to have 8,100 miles.

Hears creaking sound when turning in low speed. Only 1000 miles on the vehicle. The charging door indicator won’t go off. Keep popping up during driving, blocking the meter screen.

At almost 20,000 miles my car shut itself off while I was still driving. I was slowing down to a stop but my car was not functioning properly, could not turn my car off, put in park or turn of parking break. I had to sit in the middle of the street for at least a minute until I was able to shut off my car and restart it again. I drove straight to the Honda dealership. Waiting on diagnostic results. Also, I have always had a problem reversing out of a parking space when it rains. The emergency sensor reads an object behind me and automatically breaks even though I am the only car in the parking lot. It takes me minutes to back out enough to turn my car.

1. Infotainment system completely shuts off at random moments and not form of reset will bring them to work again. 2. Forward Collision Warning: Will sound at times even if there is absolutely nothing ahead of you. 3. Lane departure is not always “available at this time”.

Persistence issues with warning indicators appearing and charging capabilities on vehicle being reduced from 80% to 27% or 25%, which is approximately 67 miles total, and charging capacity cannot be increased either on the app of the vehicle or directly through the vehicle. Warning indicators displayed include "Service Vehicle Soon" and "Service High Voltage System". Four light indicators appear, one yellow turtle symbol, two red battery looking symbols, and a red car symbol. Incident has occurred a total of 5 times within approximately a 50-day period. Dealership where vehicle was leased has attempted to fix the issue four times without any success, issue has now appeared a total of 5 times.

Leased vehicle 8/31/24, HondaLink app crashed within 45 minutes of leaving the dealership. Spent the next 3.5 months on the phone and emailing regularly with Honda for assistance, updates, or a solution, usually with limited response and no resolution. We were told by Honda to not drive the car until the issue was resolved, but they wouldn’t take it in to a shop or anything. The issue was resolved 12/13/2024 and it finally worked - and just crashed again. Unfortunately critical updates are sent through the app, so this puts us at risk if an update is available and inaccessible to us due to the app issue. The car also randomly changes settings such as lights, window locks, door locks settings, CarPlay won’t work, wireless CarPlay does not work, drops phones completely off, slams on the brakes while backing up, and recently started slamming on the brakes going forward with no hazards in sight (reported separately). These issues cause it to be unsafe to drive this vehicle.

When I, Turn, The Wells Makes, a loud noise the other day appear in the dash brake pedal unavailable and also the air conditioning turns on and off by self

Knocking sound in the front when turning Honda states normal axel problem. For Fuel/battery . Been in a back and forth with Honda service/Honda motors because I’m getting less then advertised on my range performance. Example I drove a 60 mile drive and car drained 109z that’s 49 miles unaccounted for. I am now being told by Honda Motors mediation that the battery loses 30/40 percent efficiency in cold weather. That’s horrible. It’s not advertised and it’s unacceptable. It’s unsafe that customers can’t depend on the vehicle when an emergency happens.

During my experience with the 2024 Honda Prologue, I have encountered several significant issues related to the vehicle's starter system. Notably, while reversing, the car intermittently engages the brakes as if it detects an obstacle behind it. Additionally, while driving, the vehicle occasionally applies the brakes unexpectedly, presuming that a collision is imminent. Furthermore, I observed a rapid decline in battery power, accompanied by error messages on the dashboard indicating "Service Soon" and "Service High Voltage System.” After consulting with a service center, I was informed that no issues were detected with the vehicle. However, I am presently receiving persistent error notifications stating "Service High Voltage System" and "Reduced Acceleration Drive with Care." In addition, the air conditioning system has ceased to function, and I have been unable to charge the vehicle effectively. Each attempt to charge concludes with the message indicating that charging is complete, yet the battery remains at a static level of 91%. These issues present serious concerns regarding vehicle safety. The unpredictability of the braking system could potentially lead to an accident, while a sudden failure of the battery during travel could leave me stranded, endangering myself and others. These examples represent just a portion of the various complications I have experienced, highlighting a significant safety risk associated with this vehicle.

While driving to work both digital screens turned off, I have no data, no speedometer, nothing. I pulled over and turned off the car and it did not reset nor come back on.

Automatic braking is very sensitive, especially in the rain, and even more so when backing up in the rain. The unexpected braking happened to me at a rotary for no apparent reason, and numerous times in reverse. Service Vehicle Soon Light/(Propulsion System Failure) came on randomly at around 4000 miles. Within a day or so it turned off. Nothing with the car seemed to be effected. Then around 4500 symbol turned on again and has been on for a day or so. No notable issues.

GPS Navigation - The dashboard's Google GPS navigation has stopped functioning. OnStar System - The OnStar light remains red, indicating a potential issue with the system. CarPlay - offers to use Google Maps or Maps, however, when selecting Maps, the system returns the Google Maps. Safety Concerns - While the immediate safety risks may be minimal, the malfunctioning GPS can affect route planning, and the red OnStar light suggests potential issues with emergency communication services. I was utilizing the navigation system when it stopped working and I did get lost because the system stopped working and displayed where I had last charged my car. When I contacted Honda, I was given an appointment date/time. On the day of the appointment, Honda Service team was unsure why I was given a 5 PM appointment and did not provide assistance. I plan to go again this week to get assistance. There are numerous complaints on the forum with customers stating the same issue

I activate the right turn signal then turn right. When the turn is complete and the steering wheel straightens out, the right turn signal is automatically cancelled (as is normal). However, one out of about five times, after the right turn signal is automatically cancelled, the *left* turn signal activates for three blinks, as though it was momentarily pressed. The dealer was able to duplicate the problem, then "test drove another Prologue in stock, duplicated concern on known good Prologue." Then the dealer went on to conclude, "Characteristic of vehicle, no problem found." The service manager and the general manager at the dealer state that this is not a safety issue. I had let the dealer know, and it is in writing on the repair order, that a car coming in the opposite direction to me turned left in front of me thinking I was turning left (because my car's left blinker was on after I had just completed a right hand turn). I braked to avoid hitting this other car. I contacted American Honda and created a case number. A few days later the American Honda agent confirmed exactly what the dealer stated. First, that Honda does not consider this a safety issue and second, that it is characteristic of the vehicle and therefore no problem exists.

While sitting idle at a traffic light, my forward collision notification beeped in spite of my Honda Prologue and the vehicle in front of me being completely still. Otherwise, no movement was taking place in front of my car. I captured this on camera during an incident when this occurred briefly. I would be happy for Honda to inspect this. I haven’t reported this to anyone else at this point. No other warning lights or messages indicated this could be a problem. This failure of my forward collision warning system has occurred about 50 times since purchasing this Prologue in late December of last year (over about 7,500 miles). At times, the beeping won’t stop unless I put the car in park. I learned the locations of the sensors behind the rear-view mirror and on the bumper. I cleaned the outer surfaces off to no effect.

I turned my car on and it made an extremely loud, dangerously loud, loudest noise you have ever heard loud, static noise. I turned it off and waited and turned it back on and same thing. I tried shifting it to drive, and the noise stopped. However, every time I did anything where the vehicle would make a noise, it would make a full-volume static blasting noise instead. It was not safe to drive and I am afraid it has permanently damaged my eardrums. This is a known issue (see links below) and needs to be fixed immediately. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The tire monitor system is not working at all, I have tried resetting it for hundreds of times. It will recaliber and show me the tire pressure on all wheels just for 5 min. And once I start driving it gives me warning again( tire monitor system service).

The contact owns a 2024 Honda Prologue. The contact stated that while driving at an undisclosed speed and turning the steering wheel, there was a clicking sound coming from the front end of the vehicle. The sound had become progressively worse. The contact stated that after starting the vehicle, the AC was inoperable, and the contact became aware that the radio remained on for an additional 1-2 minutes after turning off the vehicle. While locking the vehicle, the feature that illuminated on the instrument panel displaying a message that all doors were locked, failed to operate intermittently. The contact stated that while charging the vehicle, the charge exceeded 100 percent charge. The contact stated that the vehicle also experienced several electrical malfunctions intermittently. The vehicle was taken to the dealer who diagnosed the vehicle; however, the contact was unable to recall the results of the diagnostic tests. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 2,000.

Mileage: 2,000

12/13/2024 – Vehicle purchased New 01/22/2025 – Heating system began to malfunction. 01/31/2025 – Received dashboard warnings: “High Voltage System,” “Service Vehicle Soon,” and “Reduced Acceleration.” 02/01/2025 – Vehicle towed to the dealership for service. 02/10/2025 – Vehicle returned to us after repairs. 03/06/2025 – Same errors reappeared - “High Voltage System,” We contacted Honda Customer Service and filed a claim (Claim #15405227) 3/6/2025 - Vehicle towed to the dealership for service. 04/04/2025 - Vehicle returned to us. We were assured the issues were fully resolved. We were told a Honda technician had been dispatched to support the repairs and ensure all work was handled thoroughly. 04/09/2025– Same error messages appeared - "High Voltage System" Car towed to dealership again for repair 5/6/2025 - Vehicle is still being repaired

Vehicle with purchase on April 15, 2025 pre own with only 5800 miles. Drove the car for less than 2 weeks on April 28,2025 a vehicle warning pop-up “ high voltage service error” I took it back to Honda dealership. A code U3620 came up. The code indicated a high voltage battery replacement needed. Currently ETA for the parts is not available.

three codes telling me there is a issue - reduce acceleration drive with care - service vehicle soon - service high voltage system

Back up Camera -- Honda Prologue Elite model does not have night vision back up camera. In the night when you reverse your car nothing is visible unless you press breaks. I realized this when I got loaner car and lower model has full visibility in the dark but my Elite back up camera does not have night vision. I complaint this issue with Honda Repair center and they asked me to complaint to Honda manufacturer as all Elite has same problem. I called many time to Honda but not response. Sensor - hands-free access does not work every time. it works only randomly. I complaint this to the repair center and they said all the car has the same issue so we cannot do anything about this. As my car is on lease, they are not cancelling my lease or replacing my car.

While traveling out of state, my 2024 Honda Prologue became nearly inoperable due to a system failure. The vehicle suddenly stopped accepting a charge at any public charging station and displayed multiple warning messages, including: “Service High Voltage System,” “Service Vehicle Soon,” and “Charging System Problem.” There were no prior symptoms or warning lights before this occurred. The messages appeared abruptly during a multi-hour drive home from a trip. I was able to reach the nearest Honda dealership safely, but I was forced to leave the vehicle there, far from home, because it was no longer able to charge and could not be driven further with confidence. The issue was confirmed by the dealership’s service department, who diagnosed the problem as a high-voltage battery failure requiring full battery replacement. The service team advised that repairs would take at least three weeks. I was not offered a loaner vehicle or transportation support, and I had to secure and pay for a rental vehicle just to return home. As a result, I currently have no reliable form of transportation, and Honda is not providing a rental or loaner vehicle during this extended warranty-covered repair. Furthermore, I was informed by Honda Financial Services that even if the vehicle remains out of service for over a month, I am still expected to continue making monthly lease payments on a car I cannot drive. This situation presents a serious safety and consumer protection concern, as the vehicle suffered a sudden loss of essential EV function without warning and left me stranded out of state.

I was driving through a parking lot when I received the following warning messages “Brake System Failure,” “Service Stabilitrac,” “auto hold unavailable,” “ Brake assist failure. Press hard to brake. Speed limited.” I then tried to pull over in the parking lot and vehicle was extremely difficult to stop. I had to use both legs on the brake. While sitting waiting on a tow truck, I received another warning message that stated “Service High Voltage System.”

SEVERAL LIGHTS BEGAN FLASHING, AND THE ACCELERATION stopped at 25 mph: 1. Service High voltage 2. Service Vehicle Soon 3. Reduced Acceleration - Drive With Care I brought the car in the next day. The service center at Honda Mahwah diagnosed the problem immediately. They said it is a valve for the AC system that cools the battery. They know this valve is bad on many Honda Prolouges and needs to be replaced. They said there is a "Service Bulletin" out for this problem. Then they said they do not have this valve and have no idea when it will be available. They did not want my car to sit on their lot, nor did they offer a loaner. I have not driven the car since, and it sits in my driveway, not the garage. I'm afraid of the high voltage problem, and I do not want the battery to explode in my garage. I think the NHTSA should issue a recall so this can be fixed. Pictures attached.

Tried charging my car and says high voltage service , then service vehicle soon light als the tire monitoring system is not working and reverse autobreak is too sensitive

Was driving down highway 280 north last night (April 12, 2025) near Palo Alto and both screens went black. Safety issues: 1) I was not able to gauge what speed I was going since both the instrument cluster and the center screen were blank. 2) The maps and navigation informing me of my trip were no longer available. 3) I could not hear any indication that the left / right turn signals were active when I attempted to turn after the screens went blank. There were no warnings, lamps, symptoms prior to the issue. Regarding the car multiple times did not result in the screen coming back. The screens did come back after leaving the cars turned off for 2 1/2 hours. On Friday morning I did update the Honda Prologue to the latest manufacture's software version using the car's built in software update feature.

I leased this vehicle approximately three weeks ago, yesterday as I was adjusting the dashboard lighting, the service high voltage battery warning came on. Now the vehicle wont take a charge, the vehicle has changed the charge setting to 40%, and I cannot increase it. I 've reserved an appointment for 4/11/2025 for the vehicle to be serviced, and was told that I wont be given a loaner vehicle. This entire scenario is very inconvenient to say the least. This my first Honda and probably my last. I feel that my safety is at risk in this case, as I cant drive it now, since I cant recharge the battery, so the vehicle is totally unreliable at this time. There were no warning signs of this issue, and I'm grateful that the vehicle didnt die in the middle of rush hour traffic, or leave me stranded somewhere.

I was driving and a warning popped up on my dashboard screen telling me that the "high voltage electrical system needed to be serviced" and another one followed that said "acceleration reduced drive with caution." At the same time my heat stopped working and only cold air would blow from the vents (it was a cold day so I did not test to see if the A/C was also broken). I discovered a day or so later, when I went to charge my car (it is an EV) that it would not allow me to charge above 26% capacity.

Errors. Service high voltage system. Reduced acceleration drive with care. Have the vehicle serviced.

Simply put the charging system will not stop at preset percentage and will charge to 100 percent most of the time. I would say it fails to stop and continues to 100 percent about 70 percent to the time. From what I understand charging to 100% on a daily basis can damage the battery and potentially cause a safety issue under certain circumstances, such as storage and temperature. I now have to sit in the vehicle or set a timer to check the vehicle to make sure that it stops at the designated charge limit. I have taken it in for service at Jack of diamonds Honda in Tyler, Texas, but they were unable to find or fix the situation.

Both of my infotainment screens went off completely while driving and this is very frustrating and unsafe I can’t see my speedometer or navigation or anything else and this puts my safety in danger urgent urgent please investigate this matter asap Thanks

2024 Honda Prologue has been having service high voltage system, reduced acceleration, no heat or AC in while in the rain and with toddlers in the car. Car has had this issue twice before and just got the car back from the service on April 2, Had issue in December, Feb 2025 for 11 days. The vehicle was just returned 3 days ago for the same issue. Service keeps stating they don't know what the problem and vehicle is needs to be towed due to inability to charge or drive on Major roadway due to limited speed.

I was driving on the interstate and the infotainment and drivers dashboard display cut off. I attempted to turn the car off and back on and nothing happened.

Service High Voltage System warning.

Start vehicle and warning lights flash. "service high voltage system" Drove to service center. Heat did not work on the cold morning. Defrost would not work. Service center informed me the main 440 volt battery needs replacing. wait times, one to two months for new battery.

Charging Port. car will not charge no more under 6000 miles under 10 months of ownership. I have a 3 year at least. I haven't even had it a year yet. No vehicle now waiting to hear back from Honda. They gave me a loner the dealership. Did I think this is an unsafe feature of this vehicle? And I think I should receive. A new vehicle. This vehicle needs a recall, so no one gets hurt. Or stranded on the side of the road. Because the car won't charge no more. Please help me with this matter sincerely. [XXX] of Portland Maine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

After updating my Prologue and driving it for a few miles, I'm now seeing a message that says: "Service High Voltage System / Service vehicle soon." The car will not accept a charge at all and the heat/defroster will not work. It will only blow cold air (which may just be outside air circulating meaning full hvac isn’t working).

High voltage system errors. Won’t charge. Car is 2 weeks old!

After updating my Prologue and driving it for a few miles, I'm now seeing a message that says: "Service High Voltage System / Service vehicle soon." My Prologue only has 1,096 miles on it.

Break failure on highway causing MVA- multiple attempts were made to slow down and break vehicle to no response what so ever. Pressed breaks all the way down, nothing, no air, no resistance, no sounds, vehicle kept on going. In an attempt to save myself from an accident that could have been much worse, I jumped out of the moving vehicle, landing the back of my head on the cement highway floor toward left end of bumper. This vehicle is not safe and should be taken off the roads. I have 2 toddlers and am traumatized. The vehicle stopped after some impact in the middle of the highway. From the moment of receiving this car there has been some sort of issue with it's breaks. Initially short stopping on it's own when gas peddle not pressed- had the setting fixed for that to then experience multiple whiplashes for no reason while driving. Attempted to connect the starlink on multiple occasions as well to no success and just a bunch of wasted time trying. In addition to all the alarming safety concerns, this car would not heat up well- 40 minutes into my ride I'd start to feel some warmth. I would love to have this case investigated further and sue honda for allowing such a dangerous vehicle on the roads. My accident was bad but the honest truth is that it could have been worse and no one should have be subject to this danger.

I have had this car since December 7th and I leased it brand new. It has been in service multiple times for multiple issues. Only one of the issues has been fixed while the rest they have not been able to diagnose. The cv axles have an issue and when I took the car back to Honda they said corporate Honda has not come out with a solution yet but the car is safe to drive??? The car makes a noise anytime I do a right turn and it has progressively gotten worse.

When starting vehicle, lights for Propulsion Power is Limited lights and service vehicle soon lights came on. I tried to shift into reverse, but got a warning message that the conditions for shifting error, I also could not shift to drive. I only have had the car for 2 weeks. I called the honda warranty, they arranged to have it towed to dealership. 2 different service people tried troubleshooting the problem on site with no success. It was towed and dropped off after hours at a Honda service center. The tech called the next day stating that the problem could not be recreated and all diagnostic tests came out good. Waiting and wondering when this car is going to leave me stranded again.

High voltage system errors. Won’t charge. Car is 2 weeks old!

I’ve had a couple of issues with this vehicle along with others I know with the same car. 1. When charging it has said a couple of times “not sending power” when public charger seems to be in good condition & there being funds on the card. 2. When closing the panoramic sunroof right when it’s about to close it opens back up. It takes me multiple tries pressing and holding down the button to get it to close. 3. Both screen displays have gone completely black out of nowhere and will not turn back on until a couple of hours later. 4. Sometimes in perfect Sunny condition with nothing blocking the windshield the Forward collision Safety feature will appear on the dashboard saying “forward collision system unavailable.” 5. The battery seems to not last long and even going at speed limit or slower the battery will still drain fast.

Component/System Failure: The high-voltage battery system in my 2024 Honda Prologue failed. According to the Honda service center, the battery needs to be replaced. The vehicle is currently at the dealership, not ETA when the part will arrive or when will I get my car back. Safety Risks: The failure prevented the vehicle from charging, which could have left me stranded. Additionally, the system displayed multiple warnings, and since this is an EV, a malfunctioning high-voltage battery poses a potential fire or electrical hazard. The car was not drivable due to the severity of the issue. Problem Confirmation: The issue has been confirmed by the Honda dealership, which diagnosed the high-voltage battery as the cause of failure. They recommended a full battery replacement. Inspection by Others: The vehicle has only been inspected by Honda service technicians at my local dealership. It has not been reviewed by the manufacturer directly, law enforcement, or an insurance representative. Warnings and Symptoms: The failure first occurred two days ago when I attempted to charge the vehicle at home, but it would not charge. Multiple warning messages appeared on the dashboard, including: "Service High Voltage System" "Service Engine Soon" A red car icon with an exclamation mark I attempted multiple times to charge, but the vehicle continued displaying the same warnings. The next day, I brought it to the Honda dealership, where they confirmed the high-voltage battery issue.

Service High Voltage System warning. Have had this come up on my car and I have seen that this issue has happened to many Prologue owners. The issue is with the battery cooling system. I am glad that the car did not just shut off while I was driving. Honda/GM need to make this right.

“Charge Door Open” warning appears on dashboard when the charge door is completely closed. This warning appears incessantly while driving. Additionally, “Service High Voltage Charging System” appears along with the “Charge Door Open” warning. The problem is documented on video at 780 miles on the odometer. These warnings occurred at low speed driving between 30 and 35 mph.

Rear back up camera

Mild weather, 48 degrees. driving home at night. Lights on dash start to go off: "Service vehicle soon" "Reduced Acceleration Drive with Care" "Service High voltage" "Unable to charge" Heat stopped working and vehicle unable to charge. Brought into service the morning after and waiting for service department to get in touch.

On February 25, 2025 my car decided to throw the code that said service high voltage system. I was on my way to drive my son to school. I have been driving for about two minutes and then the code showed up I called my dealership at 10 AM that morning and told them what was going on. They told me to come down there and they will take a look at the car. I bought this car on February 14, 2025. It has 370 miles on it at the time when I got to the dealership the first person turned me back and said that they couldn’t do anything because on the way to the dealership, the code went away. I left the dealership went to charge my car. It charged for 3% at the public charger and then it shut off. I went back to the dealership and this time they kept my car because the code was on when I arrived and the other guy apparently made a mistake and sent me home when he wasn’t supposed to. I got a loaner. I finally got my car back on March 8, 2025. I drove it a little bit yesterday and then I drove it a little bit more today which is march 9, 2025 my day was winding down so I figured I would go to target and get what I needed and charge my car while I was there. I went to the public charger. The car charge for about three or 4% and then it shut off I got the alert on my phone so now I must go back to the dealership when they open because today is Sunday and take my car back there. The code is now back on the car. apparently, while at the dealership, they couldn’t see anything while they had the car the code wasn’t showing up and then the dealership said that they had the Honda engineers look at the car and talk to him about it, and they couldn’t find anything wrong and they told me to bring it back in if it happens so I guess that’s what I’ll do currently the car has about 430 miles on it. I got it back and it had 390 something miles on it.

The battery failed at 2k miles and needed to be replaced. Both axles need to be replaced due to failed CV joint. There is clicking with turns. When backing up, emergency braking engages and leads us to stop in the middle of busy roads. This is a safety issue.

The buttons for changing songs have not worked at random times after turning on the vehicle. Also the car has had some problems when it comes to detecting a vehicle in front causing the car to slow down when in adaptive cruise control

Leased the 2024 Honda Prologue EX AWD on [XXX] and attempted to get the HondaLink app setup so I could see the charge level and other vehicle features. Also wanted to select my charging option and access EVGO credits. Received the text link but would not activate. I waited a week before stopping by the dealership to see if it would correct itself. Contact Honda Support and they resent the text link and told me it would take up to 24 hours to activate. I waited 48 hours and called Honda support, I proceeded to tell them that in addition to the app not working the integrated Google Maps was not functioning as it indicated the car was in Mexico, when in fact I was in Virginia. The Honda support person elevated my case to 2nd tier support and they indicated it would be 24 to 48 hours before I would get a response. I talked to tier 2 support person the next day and after some basic troubleshooting they transferred me to OnStar support as none of the OnStar buttons functioned either. After troubleshooting with OnStar they told me that 5he telematics module was probably bad and that I needed to take it to dealership, so 11 days and less 400 miles later I took my vehicle to the dealership. That was late on [XXX]. The dealership contacted me on the following Monday to tell me they need the car a little longer so their technician that was most familiar with the Prologue could look at it on Tuesday. The dealership called me back on Tuesday and said the telematics module needed to be replaced, but it was on a nationwide backorder until the middle or end of March. They did tell me the vehicle was drivable, but my concern is that without OnStar if I was in an accident and incapacitated it wouldn’t be able to contact emergency services. I did receive an update that the part is now expected to arrive April 6th, so my vehicle sits at the dealership still and I have now made 3 payments on it even though I have only driven it for 11 days. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While driving on the gateway both my screens shut off. The one on my driver dash that displays my speed etc. my telematics screen also shut off. Stayed off while driving for about 5min then suddenly reset.

While driving in traffic, the car unexpectedly applied the brakes and displayed a 'Service High Voltage System' warning on the dashboard. Shortly after, another message appeared: 'Service Vehicle Soon,' followed by 'Reduced Acceleration - Drive with Care.' The car isn't charging and lacks the speed needed to drive on the highway.

High Voltage system error 2 days after it was determined that it was fixed at the dealership.

Service High Voltage System warning. Have had this come up on my car and I have seen that this is a design issue with the battery cooling system. I am glad that the car did not just shut off while I was driving. Honda/GM need to make this car right. And this issue is happening to everyone. Please help us.

Vehicle restarted while on the freeway. My Child was in the car and was extremely frightened.

High Voltage error in car and unable to charge at 3100 miles. Now without a car and dealership/Honda will not give courtesy car. The front suspension makes clicking noise in cold weather when turning.

I have had my prologue for about two months now and have noticed that I receive a warning about reduced acceleration "randomly." I say “randomly” because I’ve observed that it appears during two specific situations. I get that warning whenever I’m low (less than 20%), so this is not random as it seems consistent. The other time this occurs is when I am driving or just starting my car (the battery percentage doesn’t matter, as it happens when it’s between 30% and 80%. Also, it happens when the temperature is below and above freezing). However, the latter situation occurs randomly and seems to happen more frequently while driving, though it also occurs when I am just starting the car. On top of that, the Forward Collision Warning system is extremely sensitive and has caused the car to brake hard unnecessarily on me with and without Adaptive Cruise Control enabled. Sometimes it even warns me of something that isn't even there.

I bought my car in mid-December and twice in the space of driving it less than 300 miles I got warning lights regarding a "high voltage" problem and to go to the dealer immediately. I did both times. The first time they said it was due to the robot installing some valves backward and also the refrigerant was low. They put me back on the road and it happened again after a few short drives. My car has been in the shop ever since. It is now Feb. 10. They now say that there is a badly designed hose that leaks refrigerant, and they are waiting for it to be redesigned and sent out and it is on national backorder. They estimate it should become available by end of February. I want this complaint logged into the system in case it happens again and because I am sure many people have this problem, having read all the complaints on the Honda Prologue forum online.

Multiple warnings came on dash -Service vehicle soon -Service high voltage -Reduce acceleration with care -Car with exclamation, batteries with exclamation, sing battery and a turtle. -Car unable to charge On-Demand Diagnostic information from on star. The Hybrid/Electric vehicle powertrain controller requested malfunction indicator lamp illumination, please refer to codes from VICM The Lithium-Ion battery is not performing as expected. An issue has been detected in the battery conditioning system which provides heating and cooling for the battery pack on your electric vehicle to ensure efficient operating conditions.

Complete Electric Failure multiple times now. Been in the shop multiple times.

I was driving on the freeway when a few error lights came on—the Reduced Acceleration, Propulsion System Icon, and a turtle icon on the dashboard and I had to floor the accelerator pedal to maintain my speed. I then pulled over, and the vehicle wouldn’t shift into drive or reverse. It gave an error message saying “conditions not meet.” Eventually, the car started working again. This is an ongoing issue with the car and Honda doesn’t want to do a buyback, this car is a lemon. I keep taking it to the dealer and all they do is clear the codes and state they can’t “duplicate” any of my concerns.

Twice the prologue warnings have come on that state “service high voltage system" and "reduced acceleration. There is no AC/HEAT in the vehicle under 35 degrees. Under 6000 miles

I purchased Honda Prologue Elite Model in May 2024. In around December, a warning sign "Service High Voltage System" message showed up. We left the EV for service twice since then and the first time the honda dealer mentioned that the A/C and Battery Sensors were in swapped positions and they fixed the issue by swapping positions and was set right. The warning came back again around two weeks later and the 2nd time around, they said the DTC P0534 A/C Charge was low and that this error must have happened at assembly. The warning disappeared for less than 2 weeks and reappeared again the 3rd time. Its about 4 weeks now since we have left it for service and when we called them couple of times, they mentioned they are waiting for the parts from Honda and dont have an ETA. Its 4 weeks and we do not have the vehicle after investing 60K. We made several calls and emails to American Honda Motor Co., Inc asking for update on the Issue and the inconvenience we are facing without having the car and the response is to wait until they can fix it. This is not expected from Honda whom we trusted and bought such an expensive car. It seems like they don'w know what the real issue is and each time we get some random response as a fix and the issue comes back. What's more concerning is that its an issue with the Electrical High Voltage system and we don't feel safe driving in it. I would have not chosen to by this EV if i knew they had these issues and not tested well enough before releasing for public. I have lost faith in Honda and 60K isn't small money Hoping the concerned office will Look into these reported issues and address this soon. Best

Twice in the total 750 mileage on the Prologue, warnings have come on that state “Service High Voltage System" and "Reduced Acceleration Drive with Care.” This occurred on 01/03/2025 at ~300 miles and again on 02/02/2025 ~750 miles. This error seems to be widespread with low-mileage Prologues, but Honda does not appear to be recalling to correct.

I purchased the vehicle on January 27, 2025. The morning of Jan 29th, I had three error messages pop up. 1- Service High Voltage System 2- Service Vehicle Soon 3- Reduced Acceleration Drive With Cate The vehicle would not allow me to connect via Bluetooth. My phone was no longer paired. I took immediately to the service dept at the dealership where I purchased the vehicle. Was told it was an issue with the AC, an A/C pressure valve would need to be ordered. 7-10 days for part to come in. Vehicle is in service dept waiting to be repaired. Only 79 miles on the odometer.

After using the turn signal, instead of self-cancelling it will operate turn signals in the opposite direction for several flashes and then cancel. Since the turn signal over cancels it causes an increased risk of collision with other drivers who could easily misinterpret intended action.

Propulsion System Failure light came on and vehicle lost all cabin heat. This occurred in winter (January) and since there is no heat all vehicle windows fog over, obscuring the view of the road and other drivers. All vehicle occupants are also at risk of exposure due to complete lack of heating in sub-freezing January temperatures.

show a "Service High Voltage System" message. The Honda Prologue we purchased in May 2024. We have left it with the dealership for the 3rd time now and problem kept coming back. As a first time EV user we are concerned of safety and ofcourse not knowing what is happening. The 2nd time around, I was told the DTC P0534 A/C Charge was low. This condition was not detected the first time this alert showed up. I was told that the A/C and Battery Sensors were in swapped position (ie wrongly swapped positions) and that this error must have happened at assembly. I have dropped off my EV at Dealership on Jan-9th and today is 31st and still haven't got any updates on it and i am without my car. No one seems to know what the issue is really and randomly suggest somethings and problem comes back again.

I purchased a Honda Prologue from my local dealer with just 8 miles on it. At 97 miles, multiple warning lights appeared, including "Service High Voltage System" and "Service Vehicle Soon." Additionally, the vehicle would not allow me to charge the battery once these warnings were displayed and acceleration was reduced. I took it to the dealer, where they diagnosed an overcharged AC system causing battery cooling issues. They removed 1.270 kg from the system, cleared the codes, and tested to ensure proper levels before returning the vehicle to me. After driving for another week, the same warning lights reappeared, and now, with only 360 miles on it, the vehicle is back at the dealer for further diagnosis for the same warning lights. It does not appear an overcharged AC system was the cause. For a brand-new car with less than 500 miles, this is completely unacceptable from Honda.

This vehicle has remote features to lock, unlock and remote start the vehicle. However the app is not able to connect with the car often and the commands "'fail" which is a safety issue because it is an electric vehicle. So if the electrical or technological parts of the vehicle are failing, what else is going on.

I purchased a Honda Prolauge Touring. Radio and Turn signal sounds suddenly stopped. While driving, the sound indicates that the turn signal is out.

Within two weeks of purchase from dealer, the car began having warning lights “service high voltage system”,“acceleration reduced”, “service vehicle soon”. Additionally this electric car would not allow me to charge the battery once these warning lights were displayed. Car has been towed to dealer for repair. Several attempts have been made to get update on repair time and my inquiries have not been responded to. I’m now stuck paying for a car that is less than two weeks old with less than 1,000 miles on it. All I have been told is that a call was made to the OEM based on the error codes that were read by the dealers system on intake. They aren’t telling me anything in terms of what the issue is, what the OEM fix is or a time of repair. The US govt NEEDS to be investigating Honda for consumer fraud related to this vehicle as I’ve now learned that I’m not alone and there are now numerous online forums describing the same situation I’m in presently. It’s immoral to sell a $60,000 car with a known fault and not disclose these faults prior to purchase. I would have never purchased this car had I known ahead of time that there were significant known issues that could render the vehicle inoperable within weeks of purchase.

Unable to charge the vehicle or heat the cabin of the car when running. When turning the heat up a burning odor was observed. Dashboard warning messages state “service high voltage system”, “service vehicle soon”, and reduced acceleration, drive with care. The dealership has been in contact with the manufacturer to try and address the issue but recommended parts are on back order with no ETA. Vehicle was purchased new with 127 miles on odometer and problem occurred at about 700 miles, 3 weeks after taking possession of the vehicle.

The turn signal sometime signals the opposite direction after the completion of a turn. For example, I'll signal for a left turn, make a left turn, and the Honda starts signaling a right turn for about 3 seconds.

The Propulsion System Error warning light (a red car icon with an exclamation point) has appeared multiple times since I purchased the vehicle. This has occurred while driving, charging, or turning on the vehicle, with no apparent cause or trigger that I can identify. I have made several attempts to have the issue resolved by Honda, but they repeatedly provide excuses, such as the unavailability of an EV technician or the lack of proper equipment to update the car's computer software. During the most recent occurrence, I was driving when the error light came on, and I experienced reduced acceleration—something I don’t recall happening before. This presents a significant safety concern for me and others on the road. A sudden reduction in speed increases the risk of being rear-ended by an inattentive driver, or worse, becoming stranded in the middle of a travel lane. Honda has inspected the vehicle previously and documented the error codes and they have just cleared the codes or updated the software on the car. No additional symptoms were present leading up to the issue. This ongoing problem needs urgent attention to ensure the safety and reliability of the vehicle.

All car screens stopped working while I was driving. Nothing seemed to precipitate their going blank; however, because the car depends on those screens for basic information (speed, for example, turning on lights, setting one-pedal driving, etc.), the car lost some basic functionality when the screens went blank. I couldn't see how fast I was going. Luckily, because it was night and the lights had been out, they didn't go out. However, I was unable to change any of the basic features of the car that depend on these screens for access. We have a video of the screens when they went blank that we can share; however, were were unable to upload the video on this website. Upon arriving home with the car, we tried shutting off and restarting the car. It took about an hour for the screens to turn back on. We are not sure why they suddenly came on, but while they were out, the car was also unable to charge. We have brought it to be serviced, but the car dealership can find nothing wrong. We worry it could happen again. There were no warning lamps, messages, etc. before the screens went blank. The car dealership could not reproduce the problem.

I got the high voltage battery warning error on my dashboard after one random night of charging. The error doesn’t go away after 3 days and at times, the vehicle could not charge. I contacted my salesman and he suggested a hard reset which involved turning off the car and keeping the car fobs at least 20ft away, which worked. However I’m still concerned there is an issue with the battery. The memory seat setting doesn’t connect to the profiles. It randomly picks between 1 and 2 whenever the car turns on. Guest profiles can’t have their name saved unless their Google account is connected. The speaker rattles when volume is higher than 20%. There’s a knocking/clicking sound whenever I steer left or right. I called the dealership on 1/22/25 but was told it is not an issue. The vehicle has about 800mi on it. Front and rear collision warning sensors are too sensitive. The default settings for both are “alert and brake” which had led to random braking when backing out of a parking spot AND random braking when I was driving on the road. Luckily no accidents occurred and I have turned both to alerts only.

Received multiple alerts including "service high voltage system", "service vehicle soon", and "cannot charge". The vehicle also reduced speed and function, which could have resulted in reduced driver safety. Vehicle will be brought in for service to determine cause.

The EV battery would not charge. There were 2 messages, but nothing to indicate the issue, except that it was unable to charge. Took it into a dealer for service who stated that the freon was low. Without freon, the battery won't charge due to possible overheating. This was a brand new car - owned 2 days. They refilled the freon and charged the car. They could not find any leaks.

For the second time in 7 months since I’ve owned the car, I need to get it serviced for an error on the panel names “System Voltage Error”. As a result, the car can’t be charged (EV), the heating doesn’t work in the middle of winter, and acceleration is reduced.

My sunroof has a constant issue when i fully open it and then try to close it. When I tried to close it the sunroof does close, but it immediately opens back up by itself. It takes me 5 to 10 tries to try to close it back up once it closes and you open it back up it does it again and it reopens by itself.

All of sudden these 3 errors started showing on the car dashboard: 1. Service High Voltage System 2. Reduced Acceleration Drive with Care 3. Service Vehicle Soon When try to charge the vehicle, car was unable to charge with this error on the dashboard "Unable to Charge, Service charging station". Currently car is in Honda Service station since Jan 13th 2025. I received an update from the service coordinator that car is having an issue with the AC system and Honda is aware of this issue but there is no ETA on/or how to fix it.

1. Service high voltage Battery warning. HVAC system stopped working and vehicle is in limp mode. 2. Vehicle clicks and clunks in the front end noise coming from the CV joints on both side. Dealership says that it is "ok to drive" parts are on back order with no ETA.

The dash and infotainment shut down and went completely blank screen while driving. No speedometer. No information on how fast I was going.

Service High Voltage Error came on and no heat was emitting from the HVAC. This is a valve malfunction that cannot be replaced in any timely manner and renders the car undriveable.

When pulling out of the driveway or parking spot and turning sharply to the left or right a clicking sound presumably from the CV joint can be heard. It has not been confirmed by the dealer, the vehicle is in the service department at leadcar honda due to “service high voltage system” and “unable to charge” messages. This message puts the vehicle in limp mode causing an unsafe situation and inability to charge had the potential to leave me stranded in frigid winter temperatures. The vehicle has not been inspected be the dealer because they only have one person certified to work on Prologue. The warning messages popped up on the screen and the warning lamps lit up on the dashboard

Unknown other than noise and knocking

We had our Honda Prologue just a couple weeks and decided to drive to the mountains. On the way up, we got several error messages: "Service High Voltage System", "Service Vehicle Soon" and "Reduced Acceleration, Drive with Care". The car was still driveable, but we could not charge it at were stuck in the mountains. We had to get towed back to the dealer. It was in for a couple days before being returned. They said they had: 1) "Done a hard battery reset"; and 2) serviced the A/C system". The car seems to be working OK but we are wary of taking it on longer drives. This seems to be a common issue on Hondaprologue forums.

Anytime the headlights are turned on, the center console Infotainment system starts scrolling through random menus and initiating button presses on any option available in the menu it is on. It also becomes completely unresponsive to human button presses while this happens. This becomes a huge safety issue as any vehicle system that is available from a button press can be turned on or off randomly. This problem is repeatable and happens every time the headlights are on.

My 2024 Honda Prologue had less than 900 miles on it when "High Voltage Warning" appeared on my dash, and warned me to take the vehicle to a service center immediately - I did, and now my Prologue has been in service for 20 days straight. (As of 1-17-25)

when you setup your EV to charge over night to 80 percent or what ever percentage it will charge more then what you programmed it to do....it will be more. Which can be very dangerous. It continues to do this since day one.

I turned on the car and backed out of my driveway and my infotainment and gauge cluster screens both went black. I pulled over to the side of the road because I could not see what my speed was and I couldn’t see what gear I was in. I restarted the car multiple times and it finally turned back on. I also realized later that I wouldn’t be able to turn on my headlights if it was dark outside. This is very unsafe and should be fixed. I do not believe I am the only one with this issue as I have seen many many others.

On 13 August 2024 I was driving my 2024 Honda Prologue when the DIC and infotainment screens went blank. At this time with no information displayed on any screen, the car was unsafe to operate. I drove the car straight to the local dealer, Tony Honda. The dealer was unable to diagnose the problem. After contacting Honda Tech support, they decided the audio control unit was defective. After 65 days the dealer was able to replace the unit and it seems to work properly. Honda informed the dealer the car was safe to operate without any display screens or information. Actually the car was unsafe to drive with no speedometer indication or any other control functioning.

After charging my car from ~20% to 80% over the course of ~8 hours, I powered on the car, reversed out of my parking space, and began driving. Shortly after (<1 min), I noticed that both my Instrument Panel screen and my Infotainment screen had shut off and were black. I continued driving for another 2-3 minutes before pulling into a parking lot. In the lot I powered the car on and off many times, and also powered the car on in Service Mode. During each of these power cycles both screens remained black. About an hour later I returned to the car and again the screens did not turn on. I drove the car about half a mile, stopped and turned it off again for around 30 minutes. After coming back to the car this time, the screens worked as normal. My safety was put at risk because without my instrument panel, I lose almost all feedback and situational awareness of the state of the car. Also, while backing out of a parking space while the screens were not working, I did not have access to my back-up camera. I have not yet taken the car to a dealer or mechanic. I am writing this report directly after the screens resumed operating. I did not see any warning lamps or messages prior to the failure. But when I entered the car initially, I did notice that the infotainment screen was turned on and at a screen that otherwise is not seen until I turn on the car.

Both screens suddenly turned black while I was driving. I had no way to restart the screen, even after shutting off the car and turning back off. The two black screen remain on, but no way to see charging status, speed, control lights, etc.

I turned my car on and the screens were on, I put it in drive and both screens went black, I pulled over and I restarted the car multiple times, nothing would come on. I had to drive one hour to work without being able to see how fast I was going, or how many miles. It was completely dark and this is a serious safety issue.

About 30 miles after starting a 1,500-mile road trip, the infotainment screen and driver instrument panel both went completely blank. After about 60 seconds, the system apparently rebooted, restoring both screens to normal operation. However, during that minute I was driving at approximately 75 mph on Interstate 90, and I had no access to certain vehicle controls and no way to verify my speed or see messages about cruise control. The error generated no warning lights or error codes, so I have not reported the issue to the manufacturer or dealership. The issue occurred with the odometer at about 180 miles. The odometer is now at about 1650 miles. I have not experienced the issue again.

On Dec. 19 the infotainment system and the instrument panels both went blank. I was driving away from my home. I touched a button on the steering wheel that controls the content of the screen that is the main instrument panel. The heads up display failed as well. The car kept running, but I could see any information such as my speed, my battery level or any of the other usual information. I could not reboot the system by myself when I called the dealership, but they said that after I handed it over to them, that it was rebooting. I took it back home and it seems to be working normally, but nothing Planet Honda did will guarantee that this will not reoccur. Planet Honda said they have heard of this happening to others, but that it's rare. If you google this problem, you can see other Prologue owners have had this happen.. This is very upsetting and potentially dangerous to not know your speed or to be able to control the lights of the car and other items. \

While driving, both screens went completely black. Without the screens I was not able to monitor speed, no access to headlights and no access to adjust one pedal driving mode. All audio stopped as well. At first I didn’t know if I lost power to the entire vehicle, which distracted me from driving. Once I got my bearings, quickly accessed that the vehicle did not lose power, I pulled over. No warning lights or messages prior to this incident. No warning at all. It took about 10 minutes before both screens came back on. Being unable to monitor vehicle status and unable to see speed and no access to multiple options without the screen, put my safety at risk and other people around me at risk. I have not taken it in for any inspection at this time. This just happened yesterday.

My Daughter left to go to school and when she got on to the road from driveway both screens on car went out. I had her come home and tried to get the dash to come on by turning car off then back on multiple times and nothing happened. Called Honda roadside assistance to get vehicle towed. Went back to vehicle to try again and the dash was working again. Called Honda roadside to update they suggested still having it taken to shop to be looked at

When backing up rear park assist slams on brakes with no person or vehicle in sight. Incident #2 While driving on the highway all screens including radio and instruments went out leaving no access to range or speed. Had to take to Honda dealer for factory reset. Incident #3 Axels are clicking and shop states are broke and on back order. Vehicle had less than 8k miles on it when issue started.

on 03/12/204 the car dashboard indicated "high voltage service" for my third time and it did not want to take a charge, I went to the dealership they took the car for days they gave it to me on 05/12/2024, they told me they found nothing, the same day I was driving around 8 p.m. the car gave me the same problem,

On [XXX], around 8 PM, I was driving north towards DeLand, Florida on the highway at approximately 70+ miles per hour when my 2024 Honda Prologue started to slow down on its own. The air conditioning system shut down, and a warning displayed on the dash: “Service High Voltage System.” I immediately drove home and contacted CarSafely, fearing that the car might become stranded and was not safe to drive. The following morning (Tuesday, [XXX]), around 8 AM, I emailed and called the Coggin DeLand Honda service department, informing them of the issue and sharing photos and a video of the incident. The error/warning disappeared after turning the vehicle on and off several times. Coggin advised me to bring the car in the next time the warning appeared on my dashboard. On Thursday, [XXX], around 12 PM, I was driving on [XXX] towards Daytona Beach at around 70 mph when the vehicle suddenly slowed down again. The air conditioning system shut down, and the service warning “Service High Voltage System” appeared on my dashboard once more. I immediately got off the highway and stopped at a safe location to turn off the vehicle and document the error and warning on my dashboard. I emailed Coggin DeLand Honda again to inform them of the issue. On Friday, July 5, 2024, I took the car to the Coggin DeLand Honda service department, where they connected the vehicle to their computer for a diagnosis. The service department detected the error and reset/cleared the error code. However, the service tech informed me that they could not fix the issue due to insufficient information, as the vehicle was built by GM (General Motors Corporation). They advised me to return directly to the dealer without an appointment if the error reappeared. On Monday, [XXX], around 8 AM, while driving at approximately 25 miles per hour on a local road near my home, the “Service High Voltage System” error reappeared. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)