What 137 owners told NHTSA about the 2025 Honda Prologue EV

I was traveling at a steady speed of 35 MPH approaching an intersection with a red traffic signal. There was a single vehicle already stopped at the light, but it was positioned a significant distance ahead of my vehicle. Without any warning, driver input, or hazard present, my vehicle initiated an uncommanded emergency braking maneuver. The vehicle forcefully decelerated from 35 MPH to a complete stop (0 MPH) in the middle of the roadway. Prior to this incident, the vehicle's forward collision system has exhibited false positive detections, frequently issuing warnings for phantom vehicles or obstacles when the road ahead was completely clear

NHTSA ODI 11746574

Exiting the interstate waiting to turn right and behind one car that was able 10 feet in front of me, the car suddenly slammed on the brakes hard enough to make me think I was hit by another car. There was nothing close by.

NHTSA ODI 11736478

Clicking noise coming from the front axles when turning either right or left. ADAS settings seem to be too sensitive. Car slams on the emergency brake when backing out of a parking spot with no obstacles in view. Forward warning system alerts occur even though there is nothing in front of the car.

NHTSA ODI 11735809

Happens frequently. While it has not yet caused the vehicle to fully slam on the brakes, it will occasionally flash the brake warning and apply the brakes even when there are no obstacles present. Additionally, when backing out of the driveway, the vehicle sometimes detects the road surface as an obstruction and abruptly applies the brakes. This occurs consistently in the same location, likely due to the steep angle of the driveway.

NHTSA ODI 11730097

CAr did emergency break on Freeway 4/7/2026 no reason, also Axel still making noise when you turn

NHTSA ODI 11730048

While driving with cruise control engaged, the car had a false positive for forward collision detection and slammed on the brakes at full Highway speed. After about one of second of emergency braking the car released the brakes and resumed cruise control as normal. There were NO other vehicles on the road in front or to the side of us at the time. Due to the unexpected braking, the vehicle following us almost collided into us. The event triggered just before the shadow of the bridge was on road of the underpass. I suspect it was the shadow that might have contributed to this event. However, this is not the first time the vehicle has had false positives in the forward collision detection system. We have experienced many of these, but typically at lower speeds. Generally speaking the “triple beep” and associated Heads Us Display red “brake” symbols briefly flash, then goes away without engaging the brakes automatically, again with these there are no other vehicles present. We have called two different dealers to report this and they tell us there is no associated TSB/service bulletin or recall for our vehicle and no software update for this. We tell them that GM has had several software updates for their Ultium platform with their other vehicles to fix this, but there is still nothing from Honda. There is a SB 25-051 for the 2024 prologues that would seem to address this but it’s not applicable to the 2025 according to them even though the symptoms are the same. This needs to be looked into as BOTH dealers told us that they had several other customers complaining about the same thing.

NHTSA ODI 11728391

We are experiencing 2 problems. The primary issue is both front axle. CV joints are clicking and making poppy noises when you turn either right or left. secondary issue, the car is having is the. Reverse collision warning problem. It is engaging and breaking the vehicle. When there is nothing behind it, it happens constantly. And we've had to turn the feature off on the vehicle's information head unit settings to stop it from causing harsh breaking. When backing up.

NHTSA ODI 11726830

Car started making knocking noise at 3k miles coming from axle. I reported to Dealership. Car sways on highways when steering straight. Car stop s at 10mph when turning corners saying that a pedestrian is infront of vehicle when there is no one. Backup camera glitches. Vehicle very unsafe. Dealership not doing anything. Contacted employees that sold me the vehicle and they are acting non chalant.

NHTSA ODI 11723998

I have had multiple occurrences where as I'm backing out of my garage or a parking spot, the vehicle stops suddenly and there is nothing behind me.

NHTSA ODI 11722439

Vehicle, in one-pedal-drive, began to enter an intersection from a stop sign into a left turn--mild reasonable torque applied onto a 25mph street. Vehicle entered intersection and began stuttering/slow/shaking until near/complete stop and loss of acceleration in middle of busy intersection. Traction control light illuminated briefly prior to resumption of acceleration. Road conditions were dry, slightly foggy. There was no reason for safety systems/ABS/Traction control etc. to over react. Honda dealership reported no relevant code to explain incident--which indicates vehicle also did not flag it as an aberration. Vehicle had just been at dealership day prior and received software update and reported inspection. Honda dealership will not take further action unless reproducible with error codes to tell them how to address. Specific component, electrical, or software failure reportedly unknown and remains unaddressed by Honda at this time.

NHTSA ODI 11721933

On 2 occasions (before a dealer initiated system update), without anyone in jeopardy of being hit in front of me, my vehicle suddenly and shockingly halted - I had no idea what was happening and thought someone hit me from behind. First instance I was at a 4 way stop sign at a complete stop with much traffic in all directions. I had ample distance in front of me. Second instance, I was driving through a green light at an intersection - again not close to hitting anyone and in control of my brakes and speed, and my car stopped - almost causing the person behind me to hit me!!! It was a busy intersection!!! My dealer said they did a system update for my vehicle this past weekend, but the same thing happened again today in a busy intersection. Additionally; the organice brake warning randomly appears on my main control panel for no reason - when I have ample clear runway ahead of me!!! I am shook and so not feel safe in this vehicle. My elderly mother in law as a passenger on one of the instances nearly had a heart attack!!

NHTSA ODI 11711285

Unknown electrical issue in the cold. Saw posts online about people getting "High voltage system" errors and after a few days in the cold it happened to me. Dealership couldn't find the issue and simply cleared the error codes telling me to come back in if it happens again. Huge issue, as it limits the range to protect the system from further issues but doesn't give me enough range to even drive home from work if the errors appears during my commute. Occasionally my front sensors don't work but give no indication of any issues, other times it notifies me that they need cleaned, but not always. Not reliable enough to trust in anything but perfect circumstances. I am also getting the CV joint clicking issue occasionally when turning, unsure if related to cold weather or not but it has only happened in 10-20 degree weather. Sounds very bad when it occurs, not very reassuring when driving a car with less than 6000 miles on it.

NHTSA ODI 11710301

The infotainment system screens go black sometimes for no reason. Been to the dealer to fix and they said they can’t duplicate the issue. Yet I have pictures and videos to prove it. The drivers assist systems turn themselves off when there is nothing blocking the cameras. Causing the one pedal driving to start applying the brakes and almost causing me to be rear ended multiple times. The AWD system is horrible. The traction control will turn on with cruise set and completely dry roads. But when it’s actively raining it slips and slides and hydroplanes do without activating any system to counteract it. The charger door was broken when I bought the vehicle and had to have it replaced. The charger itself sometimes says it can’t charge for some reason and I have to unplug it and plug it back in. The heater doesn’t get warm unless cranked to the highest setting otherwise it blows colder air. The dealership I took it to literally said they don’t want me to bring it in there anymore and to go to another dealership because and I quote “those guys know nothing about EVs so fuck them go to another dealership” the next closest dealership is 2 hours away and I work full time including weekends. So tell me how I’m supposed to make that work? The charger is now having an issue where it doesn’t charge and I have to remove the charger and plug it back in.

NHTSA ODI 11710527

On December 1, 2025, the 2025 Honda Prologue was pulling into a parking spot between two parked vehicles at low speed. While in forward gear, the Prologue experienced an unexpected acceleration event and collided with three parked vehicles, two of whom were hit with sufficient force to impact adjacent parked vehicles. The driver is unaware of having pressed down on the accelerator and is additionally concerned about why none of the vehicle safety features such as the equipped Collision Mitigation Braking System (CMBS) activated to prevent these collisions. The vehicle was brought to a local Honda dealership, yet they were unable to draw any conclusions regarding why the unexpected acceleration event occurred. The vehicle owner requested a DTC scan report and EDR (event data recording) data from the vehicle, and received the DTC report but not EDR data. The Honda dealership advised calling the American Honda customer service line with the case number to obtain EDR data. The customer service line was not able to assist because they were not able to identify the case manager, which points to a documentation error within Honda servicing processes.

NHTSA ODI 11707300

My 2025 Honda Prologue Touring, purchased in August and currently with only 7,000 miles, is experiencing multiple serious safety issues. The vehicle has already had both the left and right axles replaced. by warranty Now, the left axle is failing again. A defective axle can break at high speeds, which puts my entire family at risk, including my baby. This issue compromises vehicle stability and could easily lead to a serious accident. Additionally, the vehicle’s collision mitigation system activates unexpectedly, causing the car to brake on its own without any obstacle present. This sudden braking is extremely dangerous, especially on the highway, as it could result in a rear-end collision. The blind-spot indicators also activate at random. When I attempt to turn right or left, the blind-spot warning turns on even when I double-check and confirm that there are no vehicles anywhere near me. This creates confusion and hesitation while driving, increasing the risk of a crash. Given the repeated axle failures, unintended braking, and malfunctioning blind-spot monitoring system, I believe the vehicle presents significant safety defects that require investigation.

NHTSA ODI 11704133

Brake by it self on the street multiple times and then when I’m goin reverse it sence sometimes something and does not let me go also the battery does not let me charge more of 20% when the red car on the dash apear and it has a noise when your turning

NHTSA ODI 11703263

The contact owns a 2025 Honda Prologue. The contact stated that while driving at various speeds, there was a clicking sound coming from the front wheels while turning in either direction. The vehicle was taken to the local dealer, who diagnosed that the CV axle was faulty and needed to be replaced. The CV axle was replaced, and the vehicle was repaired; however, approximately 2,500 miles later, the failure reoccurred. The vehicle was taken back to the dealer, who diagnosed that the replacement CV axle had also failed. The manufacturer was notified of the failure. The contact stated that the Forward Collision Avoidance system had malfunctioned and erroneously indicated to stop the vehicle, although no other vehicles or objects were nearby. The vehicle also abruptly stopped in the middle of the road on several occasions with no other vehicles or objects nearby. The cause of the failure was not yet determined. The local dealer was notified, but no assistance was offered. The manufacturer was not informed of the failure. The failure mileage was 2,000.

NHTSA ODI 11694803