2025 Honda Prologue

The vehicle has twice displayed a “Service High Voltage System” warning followed by “Reduced Acceleration – Drive With Care.” When this occurs, the vehicle enters a reduced-power (turtle) mode that severely limits acceleration. Cabin heat also stopped working, and the vehicle would not charge beyond approximately 25%, restricting driving range. OnStar diagnostics reported a critical error. The vehicle and diagnostic history are available for inspection upon request. The first incident occurred while driving around town. Although I was close to home, the reduced acceleration created concern because the vehicle could not respond normally to traffic. The second incident was significantly more dangerous and occurred in heavy traffic and on the freeway about 40 miles from home during heavy rain. The limited acceleration made merging and maintaining a safe traffic speed difficult, placing myself and others at risk. I have only been able to get the dealer to take the vehicle in one time, specifically for this issue, and that was because the warning lights were still on at arrival. Staff observed the warnings at check-in, but by the time the vehicle reached the service area, the lights had cleared. The dealer stated they could not perform repairs without active warnings, though stored codes reportedly indicated a low-voltage condition. Additionally, a clicking noise from the wheel area began about 1,500 miles ago and occurs consistently when turning, similar to a CV axle concern. During a separate visit, the dealer put in writing that they could not do anything about the noise and did not diagnose or inspect it, which left me uneasy about potential drivetrain safety. The intermittent high-voltage fault, reduced acceleration, charging limitation, loss of heat, and unresolved drivetrain noise create ongoing safety concerns due to the unpredictable nature of the failures.

The contact owns a 2025 Honda Prologue. The contact stated that while parked and attempting to charge the vehicle, the vehicle failed to charge. The battery warning light was illuminated, and the message "Service Critical High-Voltage Battery" was displayed with a flashing red battery in the corner. The vehicle was towed to a dealer and was diagnosed with a critical battery failure. The vehicle was not repaired; however, the battery was reset, and the vehicle was drivable. The failure had occurred approximately five times. On another occasion, while driving at an undisclosed speed, an unknown warning light illuminated, and the message "Adaptive Cruise Control Unavailable" was displayed. The vehicle was taken to a dealer, but it was not yet diagnosed. The manufacturer was not notified of the failure. The failure mileage was approximately 8,000.

The axles on my vehicle are defective. Every time I make a turn (left, right, or U-turn) the vehicle makes a loud clicking noise. I’ve taken the vehicle in 3 times. Initially, Honda promised to fix the issue, yet each time I’ve gone in they always come up with an excuse (1st time: we ordered the wrong part, 2nd time: sorry we wasted your time today, the part still isn’t in yet, 3rd time: unfortunately Honda has released a bulletin, they are urging us not to replace the axles because it doesn’t fix the issue/does not pose a safety threat) this is after 3 TIMES. Each time my car was kept ALL day. Each time I would drop my car off at 8 am, and by the time I’m being called by my Honda service rep it’s already past 5 pm. My time has literally been wasted MULTIPLE TIMES. Why would you contact me to bring the car in so many times if you knew you were never going to fix the problem to begin with? The bulletin that was shown to me was released on 12/19/25. The problem is, the date that I was in (my 3rd and final time) was on 1/27/26. So why would you string me along for over a month if you knew that bulletin had already been released? Completely diabolical. Honda wasted my time and refuses to fix the problem. This vehicle is an issue and EVERYONE knows it. All of the Honda Prologue forums literally say the exact same thing from owners of this vehicle (AXLE ISSUES). This is a safety hazard. Clicking axles are not normal on a BRAND NEW car. Ridiculous. I’ve even tried to get out of my lease and they are not allowing me to (without penalty of course). I’m mad at myself for even purchasing this car. Shame on you Honda!!!

I am reporting multiple safety-related failures with my 2025 Honda Prologue. The vehicle has an unresolved drivetrain/axle defect that affects safe operation, and the dealer has stated that axle components are on backorder with no repair timeline. In addition, the main vehicle control screen completely blacked out and will not turn back on. This screen controls critical vehicle and charging functions. Without it, I cannot control charging or access essential vehicle systems, rendering the vehicle unsafe and effectively unusable. Further, the charging port sensor failed to alert me that the charging port was open. Because no warning was provided, the port remained open and subsequently broke. This represents a failure of a safety-related sensor system that directly impacts the vehicle’s ability to charge and operate properly. The dealer has not provided a loaner vehicle or alternative transportation despite the vehicle being unsafe to operate. These combined defects substantially impair the safety, use, and value of the vehicle.