2024 Honda Prologue brake problems

SERVICE BRAKES

I am reporting a serious safety concern involving my Honda Prologue and believe the repeated failures may indicate an unresolved defect involving the vehicle’s electronic, braking, ABS, propulsion, transmission/shift, or vehicle-control systems. On [XXX], the vehicle first displayed an error/warning. I contacted the Honda dealership in Vancouver, Washington, and was instructed to bring it in for inspection. I was out of town and could not do so immediately. On [XXX], I brought the vehicle to the dealership in the morning. They kept it overnight and returned it to me on [XXX] at approximately 2:00 PM, telling me the problem was a “system glitch” and had been fixed. On [XXX], less than 24 hours later, I was driving home after completing a Lyft ride when the vehicle displayed: “One-Pedal Driving Unavailable – Use Brake for Stopping.” At the same time, the ABS warning and multiple other safety-system warnings illuminated.The vehicle then became immobilized in the middle of an intersection. I was in an unsafe location and had to contact police for assistance. The vehicle remained unable to operate for approximately two hours. After multiple restart attempts, it suddenly became operational again, allowing me to drive it to the Honda dealership.I have photographs and videos documenting the warnings. One photograph shows the “One-Pedal Driving Unavailable – Use Brake for Stopping” warning with the ABS and multiple other warning indicators illuminated. Another shows “Service Transmission Now – Unable to Shift Soon.”This is especially concerning because Honda had already been notified, had possession of the vehicle for approximately a day and a half, and told me it had been repaired. The vehicle then experienced a serious failure the following morning and became disabled in traffic. This is not simply an inconvenience. A vehicle that can suddenly become immobilized n intersection presents a serious potential safety I use this vehicle for Lyft INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C

NHTSA complaint #11758735 — an unverified report by a vehicle owner.

SERVICE BRAKES

Please see details of NHTSA Campaign #25V433000. This is a known issue associated with a platform technology shared by GM and Honda. I purchased the vehicle as CPO on 31 July and almost immediately the parking brake warning light and the 'Service Transmission Now, Unable to Shift Soon' error code appeared on the dash. I returned the car to the dealer on 1 Aug for repairs and was told this is a 'known issue' with Honda Prologues, but there is no recall in effect for Honda. How is this possible? I am concerned with the degree of risk I could have potentially encountered due to a sudden brake failure or being stranded.

NHTSA complaint #11754986 — an unverified report by a vehicle owner.

SERVICE BRAKES

While driving my 2024 Honda Prologue Elite at anywhere from 10-30 MPH, the One-Pedal Driving system suddenly and without warning faults out and disabled mid-drive. The regenerative braking abruptly cut out, causing a sudden loss of expected deceleration, creating a 'lurch forward' feeling. A dashboard warning light illuminated instructing me to press the brake pedal immediately. This has happened multiple times, causing a severe safety hazard during normal traffic conditions. The vehicle shares an identical GM Ultium electronic brake modulator architecture with other previously recalled vehicles. The car is unsafe and should be considered for recall repairs. I have read that this is happening to others and Honda really needs to address this issue.

NHTSA complaint #11744946 — an unverified report by a vehicle owner.

SERVICE BRAKES

Description of Safety Defect: The Automatic Emergency Braking (AEB) / Forward Collision Avoidance system is severely malfunctioning. On multiple occasions, the vehicle has experienced "phantom braking"—abruptly slamming on the brakes for no reason whatsoever. There were no obstacles, pedestrians, or vehicles ahead to trigger the system. This malfunction is happening at high speeds on major highways. Safety Risk and Impact: This issue represents an immediate and terrifying safety hazard. Unexpectedly slowing to a sudden stop at highway speeds completely compromises vehicle control and leaves me at an extreme risk of being rear-ended by high-speed traffic. It is a severe danger to myself, my passengers, and every other driver on the road. While the vehicle is currently subject to a manufacturer recall regarding the backup camera and other software updates, this specific, dangerous braking behavior makes the vehicle incredibly unsafe to operate. I request that the NHTSA review this issue immediately to determine if a broader safety investigation or expanded recall is required for the 2024 Honda Prologue.

NHTSA complaint #11742950 — an unverified report by a vehicle owner.

SERVICE BRAKES

There is a clicking sound coming from what I’m told is the cv joint/axel. It is a loud and more noticeably louder and especially troubling when reversing. Purchased this vehicle less than 3months ago with only 12,000 miles on it.

NHTSA complaint #11730716 — an unverified report by a vehicle owner.

SERVICE BRAKES

High voltage system error has flagged and been fixed multiple times starting in early January of 2026. Car randomly warns and breaks in the middle of the road because it sensed something that wasn’t there. Luckily no wrecks have occurred. Both CV joints have a loud clicking noise that the Honda dealerships knows about but has no fix for. I currently have an appointment for the dealership to look at my brake and high voltage system again.

NHTSA complaint #11728535 — an unverified report by a vehicle owner.

SERVICE BRAKES

On at least 3 occasions my car has braked automatically for no reason. Nobody was in front of me or behind me.

NHTSA complaint #11709932 — an unverified report by a vehicle owner.

SERVICE BRAKES

At approximately 6,000 miles the vehicle started making clicking noises when making a left turn, which then progressed to clicking when making left and right handed turns. I took the vehicle to the dealership and they stated it is a manufacturer defect and there is no recall at this time. When backing the vehicle up it slams the brakes on when there is no reason for it to. The vehicle has also slammed the brakes on when driving down the road and there has been no obstructions or obstacles.

NHTSA complaint #11703316 — an unverified report by a vehicle owner.

SERVICE BRAKES

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 complaint #11702718 — an unverified report by a vehicle owner.

SERVICE BRAKES

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

NHTSA complaint #11676421 — an unverified report by a vehicle owner.

PARKING BRAKE:ELECTRICAL

See attached document for complaint.

NHTSA complaint #11671888 — an unverified report by a vehicle owner.

SERVICE BRAKES

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 complaint #11670342 — an unverified report by a vehicle owner.

SERVICE BRAKES

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.

NHTSA complaint #11669492 — an unverified report by a vehicle owner.

SERVICE BRAKES

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

NHTSA complaint #11667125 — an unverified report by a vehicle owner.

SERVICE BRAKES

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 complaint #11664793 — an unverified report by a vehicle owner.

SERVICE BRAKES

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 complaint #11663326 — an unverified report by a vehicle owner.

SERVICE BRAKES

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 complaint #11663390 — an unverified report by a vehicle owner.

SERVICE BRAKES

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

NHTSA complaint #11662979 — an unverified report by a vehicle owner.

SERVICE BRAKES

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.”

NHTSA complaint #11655530 — an unverified report by a vehicle owner.

SERVICE BRAKES

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.

NHTSA complaint #11652448 — an unverified report by a vehicle owner.

SERVICE BRAKES

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.

NHTSA complaint #11650051 — an unverified report by a vehicle owner.

SERVICE BRAKES

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

NHTSA complaint #11647310 — an unverified report by a vehicle owner.

SERVICE BRAKES

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.

NHTSA complaint #11647249 — an unverified report by a vehicle owner.

SERVICE BRAKES

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.

NHTSA complaint #11644057 — an unverified report by a vehicle owner.

SERVICE BRAKES

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.

NHTSA complaint #11644137 — an unverified report by a vehicle owner.

SERVICE BRAKES

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)

NHTSA complaint #11643761 — an unverified report by a vehicle owner.