Multiple warnings: AWD temporarily unavailable, service stabilitrak, reduced acceleration drive with care. Not braking completely when speeding

- Brooksville, FL, USA

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.

- Menifee, CA, USA

I got in my car and received the following error messages immediately upon turning on the car: - Brake System Failure 43 MPH Max Speed - Brake Assist Failure. Press hard to brake. Speed limited. - Service Stabilitrak - Auto Hold Unavailable Driving the car was very unsafe as the brakes were extremely difficult to engage, taking my full body force to fully depress the pedal and have the brakes slowly engage. I have taken the car to my Honda Dealership, which (at this time) has been unable to replicate the issue or find a problem. This is a safety issue to have unresolved, as the brakes suddenly becoming extremely difficult to work makes the car unsafe to drive.

- Valley Park, MO, USA

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.

- Agoura Hills, CA, USA

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

- Whittier, CA, USA

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.

- Atlanta, GA, USA

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.

- Apex, NC, USA

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.

- Bowie , MD, USA

During a storm when backing up out of parking spot the prologue did an emergency breaking procedure, engaging the parking break. (There was no one behind me or anything in the way) and left me stuck in the middle of the street until I could figure out what happened. I had to manually release the parking brake and as I did that, I then almost ran into someone that was trying to go around me while I was a full stop. Since this happened randomly, I was not fully sure what was going on. This creates a huge safety hazard when there is no reason for it. There are many reports of this in forums that say just turn it to warning only mode, which then removes a safety feature that 1, was paid for and 2 could actually prevent a accident

- Deerfield Beach, FL, USA

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.-??

- Alamo, TN, USA

When I turn left or right from a complete stop it makes a clicking noise. I believe it is the CV joints. When backing the car randomly puts on the break with nothing around the rear of the vehicle.

- Tarzana, CA, USA

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.

- Englewood, NJ, USA

Every time this car comes to a stop, it rocks back and forth significantly on its suspension. Even at low speeds, it is noticeable when breaking, with about a second and a half of five to six rebounds back and forth. It is highly prominent with stronger braking or stop-and-go traffic, resulting in about two seconds of hard rocking back and forth. This problem happens more when the car is being driven in normal mode, meaning using both the acceleration and brake pedals; it-??s less pronounced when driving in -??one-pedal-?? mode. I took the car to the dealer service department, and they tested my car and other Prologues. The service department manager said this seems to be a problem in all the Prologues, even a 2025 model they tested. This problem is causing motion sickness for me and my wife, which can lead to distractions and potentially unsafe behaviors as explained below: * Distraction: Passengers experiencing motion sickness may be too focused on their discomfort to pay attention to the road or the driver, which can be dangerous. * Nausea and Vomiting: Nausea and vomiting can cause a passenger to become ill, which can be a distraction and potentially lead to unsafe behaviors like reaching for a trash bag or losing control of their body. * Safety of the Driver: If a passenger struggles with motion sickness, the driver may be distracted by the passenger's discomfort, which can lead to unsafe driving behaviors. * Increased Risk of Accidents:If a passenger becomes ill and the driver is distracted, the risk of accidents increases. Even though the dealership acknowledged that this seems to be a widespread problem based on the tests that their service department did, they are unwilling to take action until an official recall is in place. Please help.

- Phoenix, AZ, USA

Brake system failure message and car was exremely hard to stop. I had to stand on the brake pedal to get the car to stop

- Katy, TX, USA

All lights related to brakes lighted up on a dashboard ( and message to take it to Dealer). Took it to Dealer. Car is in the shop for over 5 weeks and they can't figure it out what's wrong. They've replaced brake booster (twice!!!!!) and that didn't fix it... Now replacing front calipers. On top of that cv axle is clicking terrible and they can't replace it because it's on long Backorder ( I'm waiting over 2 months for it already.

- Crown Point, IN, USA

Braking for no reason slam on the breaks so hard we all got so scare. Also the rear brakes engaging with no obstacles on the way.it felts like I hit something. took to the the dealer of purchase and very much make me field like I was insane. and what the technician did was turning off the automatic breaking system. that was the solution. now at when I turn right of left it makes a ticking noise on the suspension. started at 4k miles. plus a win noise is so heavy that I need to the radio volume. I got this car because of the automatic breaking technology offer, but I can't utilize it do to the failure of the system.

- Dublin, CA, USA

On 2/16/2025, I was slowly (maybe 5mph or slower) backing out of an Electric vehicle charging stall. Rain was falling lightly. The AEB system activated more than five times in a span of 60 seconds. The vehicle thought there was an obstruction in my path, even though there was no vehicle behind me or in front of me. There was a vehicle that was parked in the other stall charging.

- Martinsburg, WV, USA

On [XXX], I leased a Honda Prologue from Honda Carland in Roswell, GA. Within a week, the vehicle displayed multiple braking system failure warnings, including -??Braking system failure, -?? -??Service Stabilitrak, -?? and -??Brake assist failure.-?? One-pedal driving also became unavailable. Upon attempting to drive, the brakes were completely unresponsive, causing the car to roll down a ramp uncontrollably before eventually stopping. Despite multiple attempts, the brakes failed entirely, making the vehicle out of my control. I immediately called Honda-??s OnSite service, and the car was towed back to the dealership. The dealership initially diagnosed the issue as a loose connector that was allegedly not properly attached during assembly. They assured me the vehicle was now functioning as designed. However, about a week later, the same critical brake failure occurred again. The car would not brake, forcing me to request another tow back to Honda Carland. This time, the dealership claimed the issue was due to a faulty brake master unit, which they replaced-?"a far more serious defect than initially diagnosed. Given the life-threatening nature of repeated total brake failure, I refused to drive the vehicle and attempted to return it. In researching this issue, I have found similar complaints in online searches, including the NHTSA database, suggesting that this may be a much broader issue affecting Honda Prologue vehicles manufactured in 2024. This is not a minor issue-?"it is a safety hazard that puts my life and the lives of others at risk. I am not willing to drive this defective vehicle, and I urge the NHTSA to investigate this matter immediately to ensure that no other driver is put in danger due to brake system defects in the Honda Prologue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Alpharetta, GA, USA

Pulled out of our driveway and received a message that "AWD Temporarily Unavailable". This message did not indicate that this fault disables one-pedal driving. Upon reaching the end of my street at the stop sign, I gently let my foot off the accelerator expecting the car to slow down as it should when using one-pedal driving. Instead the car continued to move forward and I almost went through a stop sign into a busy road where I would have for sure gotten into a bad accident. Not informing the driver that this fault also disables one-pedal driving is extremely hazardous.

- Darien, CT, USA

I have encountered recurring problems with the vehicle's automatic braking system, as well as issues with the Honda Prologue app, both of which I believe compromise the vehicle's safety and performance.-??The vehicle's automatic braking system appears to be malfunctioning, as it has activated unexpectedly on multiple occasions, leading to near-miss accidents. At least three occasions, the vehicle-??s brakes have engaged without cause, even in situations where there is no obstruction or -??phantom-?? vehicle detected. This automatic braking has not only been inappropriate but also posed a significant safety risk to both myself and other road users. Additionally, the reverse braking system exhibits similar issues, activating without cause. Despite the alerts being on and the brakes not being engaged, the system-??s warning signals still activate, leading to further confusion and potential danger. I have consulted with both the dealership and the Honda Prologue forum, and it has been confirmed that this is an ongoing issue. The dealership has indicated that they have no immediate workaround or solution. The only remedy has been to disable these safety features entirely, which negates the very purpose of having them. -??The Honda Prologue app, which is intended to provide critical vehicle information and allow remote monitoring and control, is also malfunctioning. I have been in communication with Honda for over two months regarding these issues, but unfortunately, no viable solution has been provided. The app is essential for monitoring vehicle functions such as theft prevention, charging status, and temperature control, all of which are key safety and convenience features. In particular, I am concerned about my ability to monitor the vehicle-??s charging especially given the increasing number of incidents involving electric vehicles catching fire during or after charging. Proper monitoring of charging status is crucial to avoid potential overcharging and battery degradation.

- Farmers Branch, TX, USA