What 795 owners told NHTSA about the 2024 Honda Prologue Bev

Automatic Emergency Braking often triggers for no reason when backing up this vehicle. This is a safety issue 1) Random stops in a parking lot are disorienting to both the driver of the car and the drivers around them 2) The AEB system creates a very hard stop. During the last incident I was with my father who had recently had neck surgery and had additional pain for about 2 days after the false AEB trigger. Thankfully, it did not trigger any long term complications.

NHTSA ODI 11707992

While driving the car this evening, following a day of driving, the info tainment and dashboard screens went blank while on the highway. Pulled off at the first exit (30 miles down the road or so). Tried: - turning car off and on - turning off, opening drivers door for one minute, closing and restarting - the same, but waiting 5 min after opening and closing door - the same, but the using the remote lock to lock the car after closing the drivers door - holding down the radio power button for up to 2 min Drive finished by foijf slowly on local roads. No speed information. No warnings systems available.

NHTSA ODI 11707302

The system does not reliably "see" pedestrians or cross traffic or often times will phantom brake when there are no obstacles viewable. I believe this is a substantial safety issue because the car will abruptly stop without warning and engage a parking brake, creating a delay before being able to vacate traffic. This has happened going forward, but more frequently in reverse. This appears to happen more during inclement weather or in the dark.

NHTSA ODI 11707175

When driving with the adaptive cruise control on, the Prologue throws out an alert after it suddenly disengages the cruise control that states that the forward camera is blocked and the cruise control will disengage. The cruise control also fails to notice cars in front of the Prologue and will speed up, then will suddenly "see" the car, jam on the breaks, then the accelerator again. Also, the adaptive cruise control cannot gauge distance between cars and all following distances set for the car, whether 1, 2, or 3, are exactly the same. This has been reproduced for the dealer and confirmed as an issue with this Prologue. The dealer then shrugged and said there were no fixes from Honda yet, so there was nothing they could do. This is a huge safety issue because a sudden deceleration at highway speeds has nearly caused a half dozen accidents in the past 2 weeks alone. This issue has been reoccurring for over 1 year with multiple congerences with the dealership, all ending with the statement that Honda has not issued a fix yet.

NHTSA ODI 11705663

This vehicle has automatic emergency brakes repeatedly for no reason on empty roads with nothing around the car. It emergency breaks going forward on the highway. It emergency breaks going backwards out of my driveway. It emergency breaks pulling out of drive thrus. I have nearly been hit multiple times because of this. I have been covered in scalding hot coffee because of this as the car violently brakes suddenly and for no apparent reason.This has been reported, reproduced, and confirmed by the dealer. Then they just shrugged and said Honda has not issued a fix for the issue. This is a safety issue because it has nearly caused multiple collisions on the highway and on city streets.

NHTSA ODI 11705671

Forward collision warning either does not work at all or is too sensitive. When demonstrated for the dealership, the warning went off while in park for a potted plant more than 10 ft away, then did not go off again no matter how close the Prologue was moved towards an object nor what speed we were moving, until it suddenly went off as we approached a cross street, alerting to a car that was almost through the intersection before we approached it. The dealership did confirm that the system did not work on the Prologue. Then they shrugged and said that Honda had not issued a fix for the problem. This is a safety issue because it is part of the safety system and it does not work.

NHTSA ODI 11705675

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

NHTSA ODI 11705185

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.

NHTSA ODI 11703948

Several issues!! When I turn I hear clicking noises. Last night The "Service High Voltage System" warning lights came on. The Interior pieces are falling off my door and the vent on driver side dash. The automatic emergency break is very strong and jerks very heavily when back up. It’s not turned off!

NHTSA ODI 11703427

the automatic emergency braking system in both forward and reverse is to sensitive and violently slams the brakes when there is no risk of a collision. the most recent incident involved making a left hand turn where there was a little overpass wall on the passenger side of the street i was turning onto. with cars behind me the vehicle slammed the brakes as i was going approx 10-15MPH , startling myself and all 3 passengers and almost causing me to be rear ended. the vehicle also slams the brakes in reverse when there are no objects in the way predominately if it is raining out. it's a harsh violent stop and can cause an accident or injury. due to this incident the vehicle is back at the dealership for a total of 3 appointments and 32 days in repair for this issue and they still have not remedied the issue

NHTSA ODI 11702718

I got several false positives from the radar or perhaps optical system that caused the vehicle to spontaneously and suddenly brake at freeway speeds. I believe it was the optical system that was at fault due to the shifting lines on the freeway but I can't be sure. I got the radio update service bulletin work completed by the dealership and it seems to have abated. However, any 2024 prologue that has not received the update is subject to the same error. From what I understand, Honda has stopped performing the service bulletin at this time due to update failures that have "bricked" the car's software.

NHTSA ODI 11702734

My 2024 Honda Prologue has numerous issues. First, the CV joints are making the clattering noises when turning right from a stop. Started at almost 8000 miles, more faintly, but now very noticeable. I noticed the left has now started making the same noises as well at 9000 miles on the odometer. Soon after purchase, the automatic braking/collision avoidance slammed on my brakes HARD while driving at highway speeds. Nothing was present in front of me, early morning and no cars around or I probably would have been rear ended for sure. I disabled the auto braking but the “BRAKE” alert comes on almost daily, with nothing there. Backing up did the same so I disabled it as well. Lastly, every time I use my turn signal to turn right and I bring the wheel back to center, it cancels out as it should but it then turns the left signal on for 3 blinks. Assuming the stalk is to strong or weak and goes back just far enough to indicate like I am going to turn or enter left. This can surly cause confusion to other drivers. The dealer stated Honda is aware of the CV noise but has no remedy at this time. For the other issues, they needed me to leave my car but had no loaner available. I will have to return there at another time as the loaners are “first come first served”.

NHTSA ODI 11702506

1. Parking sensors will go off at the most random times. The most common is when I’m at a standstill at a traffic light and the front parking sensors will start beeping as if I am as close as possible or about to hit an o next in front of me. 2. Rear parking sensors consistently alert and beep when there is nothing behind me. For instance I was backing out of a parking spot with no cross traffic or anything behind me. As I was trying to back out it slammed the breaks and came to a sudden stop. It did this again until I pulled the car back into the parking spot and backed out again. This will also happen when I am backing the car into and out of my garage. I don’t have anything beside me or within the guide lines but it will out of nowhere come to a sudden stop and not let me back up anymore. 3. I had one instance of emergency breaking. We were coming to a stop when out of nowhere the emergency breaking stopped the vehicle. We were at a slow rate of speed at this time. Maybe 10mph when it slammed the breaks on to come to a complete stop about 10 yards behind the vehicle in front of me. It did this twice within a few second period causing a motorist behind me to almost hit me.

NHTSA ODI 11701351

Forward collision warning system activated Automatic Emergency Braking system and brought car to an immediate stop. This has happened multiple times for no reason. Sometimes it will activate on a street with no other vehicles, today it almost got me rear-ended in traffic.

NHTSA ODI 11676679

Frequently engages erroneously due to heavy rain or pavement markings. Last week when it was raining heavily, AEB engaged at least 10 times while I tried to back out of my garage (there was nothing/nobody in my driveway). And this past Friday it engaged 3 times on different colorings for patched pavement cracks in a parking lot while backing out of a parking spot.

NHTSA ODI 11676490

I cannot reverse with my car slamming on the brakes and it thinks I'm going to hit something when no one is behind

NHTSA ODI 11674167

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.

NHTSA ODI 11672637

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”.

NHTSA ODI 11671222

Well i bought this Brand New car from HONDA PLANET in NJ UNION 2024 August have been have this issues with axles making clicking noises also when Stopping Suddenly in Reverse this is not normal have been taken to the dealership since i bought this car and its getting crazy for me for my comfort because i bought this car for my comfort use not to be feeling uncomfortable and not safe driving this car

NHTSA ODI 11670325

While driving my 2024 Honda Prologue, the automatic emergency braking system (part of Honda's Collision Mitigation Braking System) has activated unexpectedly and forcefully multiple times — with no obstacle or vehicle ahead. The most serious incident occurred on 6/28/2024, while traveling at approximately 70 mph. The vehicle suddenly slammed on the brakes without warning or any visible threat in the road. We did not crash, but the vehicle behind us narrowly avoided rear-ending us. This also happens about 50% of the time we reverse the vehicle. Given the potential severity of this defect — especially involving passenger injuries and potential crashes — I am deeply concerned. Many other Honda owners have reported similar phantom braking behavior across multiple models, and I believe this defect needs to be investigated urgently by NHTSA. Honda has not issued a recall or provided public guidance on how to disable or address the system, leaving drivers at risk.

NHTSA ODI 11670342

While driving my 2024 Honda Prologue, the automatic emergency braking system (part of Honda's Collision Mitigation Braking System) has activated unexpectedly and forcefully multiple times — with no obstacle or vehicle ahead. The most serious incident occurred on [insert date], while traveling at approximately [insert speed] mph. The vehicle suddenly slammed on the brakes without warning or any visible threat in the road. The sudden stop caused whiplash injuries to my wife and two children, who were passengers in the vehicle. We did not crash, but the vehicle behind us narrowly avoided rear-ending us. I have attempted to get the vehicle serviced, but the nearest dealership told me there is a wait time of over a month, so no diagnostic has yet been performed. Given the potential severity of this defect — especially involving passenger injuries and potential crashes — I am deeply concerned. Many other Honda owners have reported similar phantom braking behavior across multiple models, and I believe this defect needs to be investigated urgently by NHTSA. Honda has not issued a recall or provided public guidance on how to disable or address the system, leaving drivers at risk.

NHTSA ODI 11669381

When backing up randomly puts emergency brake on. In return you get whiplash. The car will then not move forward or back have to shut it off. It takes about 3 times for it to work again. The wipes with rain sensing on come on when hardly any rain but pouring and never turn on. The ev does not hold a charge for highway. Trip was 154 I had 280 on charge dies at 145.

NHTSA ODI 11668472

Driving in the express lanes south of Atlanta in the rain, the vehicle's Automatic Emergency Braking system activated for no reason. There were no other vehicles around, and we were on a straightaway. It was such an abrupt deceleration that if another vehicle had been tailgating me, they probably would have run into me.

NHTSA ODI 11664793

When I put the car in reverse the automatic emergency braking system engages multiple times. Though there are on abstracts on the path. I have to constantly keep pressing the parking brake multiple times in order to get out of my driveway in the morning and afternoon. This is a constant occurrence weather there it is raining or not raining.

NHTSA ODI 11663326

When I was taking my Prologue in reverse and will slam on the brakes even when there is nothing behind me. It happens frequently nothing behind me. As others have reported here and elsewhere online, my Prologue emergency braking/collision detection system repeatedly activates when there is no danger of a collision. Backing out of my driveway I can expect that 40% of the time the car will slam on the brakes for no reason and apply the parking brake, which I then have to disengage manually to continue backing out.

NHTSA ODI 11663390