What 137 owners told NHTSA about the 2025 Honda Prologue EV

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

While merging onto the freeway in [XXX] today, I was slowing in response to a metered light but did not come to a complete stop. When the light turned green, and I accelerated, the vehicle suddenly jolted and produced a loud impact noise, similar to hitting a large pothole. I returned to the on-ramp to check the roadway but found no visible obstruction or hazard that would explain the incident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11730098

This issue has occurred twice. The first time was at approximately 3,000 miles, and the second time at around 7,200 miles. On both occasions, the vehicle lost power and displayed a warning message stating “Service High Voltage System” along with a “Reduced Speed” notification. During these events, the estimated driving range dropped significantly, charging was limited to approximately 25%, and acceleration was severely restricted, indicated by a turtle icon on the dashboard. After the first occurrence, the vehicle remained undrivable for approximately three days over Thanksgiving. By the time I was able to bring it to the dealership on the next available business day, the warning light had turned off. I was advised to bring the vehicle in immediately if the issue happened again. The issue did not reoccur for about three months. When it happened again, I was out of town and the estimated range dropped from over 100 miles to around 60 miles. I was able to make it home without requiring a tow and brought the vehicle to the dealership the following day. At check-in, the service advisor observed that the warning lights were still active. However, later that day I was informed that by the time the vehicle was inspected, the warning lights had turned off, and no action could be taken. Based on information found in online owner forums, this appears to be a known issue potentially related to a defective component. It has also been suggested that the issue is more likely to occur in colder conditions. Due to the unpredictability of this failure and the loss of power and range when it occurs, I do not feel confident in the reliability of the vehicle, particularly for longer trips or travel in remote areas.

NHTSA ODI 11730100

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

NHTSA ODI 11730048

Upon start-up the driver display was off, showing no information. Center infotainment display remained on. Attempted infotainment reset by pressing and holding the hang-up call button on the steering wheel, and after approximately 30 seconds the infotainment display turned off, driver display remained off. Shutdown and started car, both screens remained off.

NHTSA ODI 11729743

Being an AWD. There is a load knocking sound when accelerating from a stop to 30 mph while turning left or right. The frequency happens every time under those conditions. With my experience this knocking sound is indicating a bad CV Joint, axle, or transfer case.

NHTSA ODI 11728998

Axle clicking when turning. Car visited dealer on Jan2026 and they requested replacement parts. Last update from dealer stats Honda stopped replacing them due to defective parts. Replacement part is under design.

NHTSA ODI 11728943

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

The CV Axle joint has prematurely worn down and makes a popping sound when executing a sharp turn at low speeds. Honda is aware of the issue and has noted that it is widespread; however, they have offered no solution for fixing it.

NHTSA ODI 11727747

Axle makes clicking sounds when turning.

NHTSA ODI 11727681

The issue involves a failure of the braking system and related electronic control systems in a 2025 Honda Prologue. Prior to the failure, the vehicle displayed repeated warning messages including “Single Pedal Unavailable” and “Auto Hold Unavailable.” These warnings began appearing within approximately three weeks of taking delivery and became more frequent over time. The primary safety incident occurred while driving on a highway. Multiple warning indicators appeared simultaneously, including battery and maintenance alerts, and the vehicle began to decelerate automatically. When the brake pedal was applied, the brakes were completely unresponsive, creating a life-threatening situation. I was forced to continue driving for approximately one mile before bringing the vehicle to a stop using the parking brake. This incident placed both myself and other road users at significant risk due to the inability to slow or stop the vehicle under normal braking conditions at highway speed. The vehicle was towed to a Honda dealership (Folsom Lake Honda) for inspection and repair. The dealer returned the vehicle stating that the issue had been addressed. However, the same warning messages reappeared, and a second incident involving brake malfunction occurred, confirming that the problem was not resolved. The issue has been inspected by an authorized Honda service center, and the vehicle was diagnosed and repaired once, but the defect recurred after the repair. The vehicle has also been reported to the manufacturer (American Honda Motor Co.) for further action. This is a serious safety concern involving loss of braking capability at highway speeds, and the problem has occurred more than once despite attempted repairs.

NHTSA ODI 11727278

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

On March 18, 2026, while driving a leased Honda Prologue in rush-hour traffic on a major highway in [XXX] , the vehicle suddenly shut down and would not restart for approximately two minutes. The incident occurred without any warning messages, alerts, or notifications and created an extremely dangerous situation. At the time of the incident, traffic had been stop-and-go for approximately three miles. Without warning, the radio turned off, all dashboard lights went dark, and the vehicle lost power and stopped moving. I attempted to restart the car multiple times, but it would not turn on. On approximately the seventh or eighth attempt, the vehicle finally restarted, allowing me to safely pull off the highway. Fortunately, the slow-moving traffic prevented a rear-end collision with vehicles behind me. I began leasing the vehicle this past summer, and at the time of the incident it had fewer than 2,600 miles on the odometer. I took the vehicle to the dealership that same evening. During their inspection, the dealership identified several “Lost Communication” diagnostic trouble codes in the vehicle logs. The most significant code identified was B1B42 – Start/Stop Switch Not Plausible. The service team also noted that the manufacturer’s troubleshooting checklist references codes B1B15 or B1B15 2A; however, those codes were not present. Based on the findings, the dealership replaced the S38 Start/Stop Switch. I resumed driving the vehicle two days ago and have not yet experienced any further issues. However, I remain extremely concerned about the seriousness of this failure. If this same issue were to occur again at higher speeds or in faster-moving traffic, it could result in a severe accident. The complete loss of power without warning represents a significant safety risk and warrants further review. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11726836

CV axles clicking and now a slight vibration in the steering while driving at highway speeds. Also audible buzzing noticable. This started around 8000 miles , it now has 11000 and getting worse.

NHTSA ODI 11726291

Car makes a knocking noise when turning. It was determined this is a bad CV axel which now needs to be replaced.

NHTSA ODI 11725145

I leased a Honda Prologue on June 25, 2025. Approximately two months ago, I began noticing a noise coming from the front axles when turning left or right. I scheduled an appointment with my nearest Honda dealership and reported the issue. A few hours later, I was informed that the matter is currently under investigation and that Honda does not have a solution at this time. I also contacted Honda of America directly and was advised that there is still no resolution for this issue. My primary concern is safety. I am unsure whether this unresolved issue could develop into a more serious problem in the future, especially since this vehicle is regularly used by my wife to transport our son to school. This uncertainty is extremely concerning. I find it unacceptable and disrespectful for Honda to sell or lease a vehicle with a known defect and no available solution. I expect a reliable and safe vehicle, particularly from a brand with Honda’s reputation.

NHTSA ODI 11724733

Axle clicking initially only while making turns left and right - now when it drives straight the axle sometimes clicks as well.

NHTSA ODI 11724393

The axle is making clicking noise when turning every time. This is a known issue with other car model holders

NHTSA ODI 11724358

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

The camera visibility systems on this vehicle become extremely dark and largely unusable at night. This affects multiple cameras, including the rear backup camera, which is the most problematic. In low-light conditions, the display does not provide a usable image of the area around or behind the vehicle. When reversing at night, the rear camera image becomes so dark that pedestrians, obstacles, or other vehicles behind the car cannot be seen. This creates a significant safety hazard because the driver cannot rely on the camera system to safely maneuver or reverse the vehicle. All rear lights and exterior lighting on the vehicle are functioning properly, which suggests the issue is related to the camera system itself, image processing, or the vehicle’s configuration for low-light conditions rather than a lighting failure. Because the rearview camera system is intended to provide rear visibility and prevent back-over incidents, the system failing to provide a usable image at night defeats its intended safety purpose and creates a risk of a back-over crash or collision. The issue has been persistent since the vehicle was delivered and occurs consistently during nighttime operation and other low-light conditions. The rear visibility system appears unable to perform its intended safety function under normal nighttime driving conditions, raising concerns about whether the system is functioning as required under Federal Motor Vehicle Safety Standard No. 111 (Rear Visibility).

NHTSA ODI 11723518

The contact owns a 2025 Honda Prologue. The contact stated that while shifted into reverse(R) at night, the reverse lights provided inadequate lighting. The contact stated the image on the display screen was basically black, and shadows were visible. The brake pedal was tapped to illuminate the rear of the vehicle. The contact had not yet taken the vehicle to a local dealer. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 7,700.

NHTSA ODI 11723603

When I make a u turn the wheel makes a loud clicking noise.

NHTSA ODI 11723184

Vehicle was taken to dealer for click noise Hurd while turning right around only 4k miles. The dealer confirmed the noise using a mechanics ear they said as of right now no replacement has been authorized. Honda is investigating. January 2026 car started clicking while in curves and any movement in steering. Still no fix. March 2026 still not fix because Honda hasn’t investigated yet and now my system has horrible issues with the auto break and rear collision avoidance system. Hondas “fix” turn it off. Why wouldn’t get a touring model with all those features just to have them tuned off.

NHTSA ODI 11722762

I have had multiple incidents where I'm driving and the instrument cluster goes black and either takes multiple minutes to come back on or I have to turn the vehicle off and back on to get it to work.

NHTSA ODI 11722430

When reversing in a dark or low light area I can't see behind the vehicle on the backup camera display. It seems like there is no night vision and the reverse lights don't illuminate behind the vehicle enough to see in the display or the rearview mirror. I've almost backed into objects because you cannot see behind the vehcle.

NHTSA ODI 11722433