What 795 owners told NHTSA about the 2024 Honda Prologue EV

Shortly after purchase, I observed damaged/torn underhood insulation and reported the condition to the selling dealership, with concern that the vehicle should be inspected for related issues. Prior to a crash incident, I experienced concerns involving braking-related behavior and advanced driver assistance features, including lane assist and object/collision warning functions. During the crash, while reacting to a roadway hazard, the vehicle swerved and struck a pole, and I did not experience warning or intervention from driver assistance features as expected. Following the incident, a diagnostic pre-scan identified multiple faults involving brake control, radar sensors, image processing, and communication systems. Since the incident, similar concerns have continued, including recurring braking/driver assistance concerns, and the issues remain unresolved. I am submitting this complaint due to concern that braking and advanced driver assistance systems may not have functioned as intended and may present an ongoing safety risk.

NHTSA ODI 11734343

On 2/19/2026 I was taking an freeway exit ramp from I 15 south to Carrol Carrol canyon and I stepped on the brake but the car did not slow (my perception was it was speeding up), the vehicle collision warning did not sound and the vehicle did not emergency brake, therefore I hit a stopped vehicle at a stoplight. The air bags did not deploy. Attached pictures: Left side is the vehicle was rear ended. Right side is the Honda Prologue

NHTSA ODI 11719726

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

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.

NHTSA ODI 11650591

The contact owned a 2024 Honda Prologue. The contact stated that while driving at an undisclosed speed, the steering wheel seized. In addition, the brake pedal was depressed, however, the vehicle failed to stop as intended. The vehicle speed increased independently. As a result, the vehicle crashed into another vehicle. The fire department and the police arrived on the scene. A police report was filed. There were no injuries reported at the scene of the crash, however, the driver of the other vehicle was later treated for unknown injuries. The vehicle was towed to a local tow yard. The contact stated that both vehicles were condemned totaled lost. The manufacturer was made aware of the failure and a case was filed. The failure mileage was 1,000. The VIN was unavailable.

NHTSA ODI 11617949

The contact owned a 2024 Honda Prologue. The contact stated that while stopped at an intersection and attempting to make a right turn, the steering wheel was frozen and the vehicle began to independently accelerate at an unknown speed. The contact stated that he was depressing the brake pedal but the vehicle was not stopping. The contact stated that he crashed into a vehicle in front of his vehicle on the other vehicle's passenger side front door. The air bag deployed. The contact stated he was not aware of any warning lights. The contact stated that the police and emergency service vehicles arrived. The contact was not injured and did not receive any medical attention. The police filed an incident report. The vehicle was towed from the scene to an impound lot and later was declared a total loss by the contact's insurance provider. The manufacturer was informed of the failure. The failure mileage was approximately 2,000.

NHTSA ODI 11613932