2025 Honda Prologue

The contact owns a 2025 Honda Prologue. The contact stated that while driving at various speeds, the battery suddenly experienced a loss of power. An unknown message was displayed. The vehicle was taken to a local dealer, where it was diagnosed; however, the cause of the failure was not identified. The vehicle was not repaired. In addition, the contact stated that the failure had progressed over time. The manufacturer was made aware of the failure. The failure mileage was approximately 1,000.

My vehicle recently began displaying the error messages “Service High-Voltage System” and “Reduced Acceleration – Drive With Care.” Since these warnings appeared, my vehicle’s heating system no longer works at all. This defect creates multiple serious safety hazards: 1.No heat in cold weather: Temperatures in my area are currently around 42°F, and the cabin cannot warm up. This creates an unsafe temperature environment for myself and especially for my children while driving. 2.No ability to defrost windows: Without heat, the vehicle cannot defog or defrost the windshield or windows. This severely impacts visibility and creates a dangerous driving condition. 3.Reduced acceleration: The vehicle warns of reduced performance, which may affect my ability to safely merge, change lanes, or respond to traffic conditions. These issues began without warning, and the loss of heating combined with high-voltage system errors makes me concerned about a potential electrical or battery system failure. This is a significant safety concern that needs to be investigated, as the vehicle is not safe to operate in its current state. I request that NHTSA look into this issue, as other owners have reported experiencing this same dangerous combination of high-voltage errors and loss of essential climate-control functions with no resolution from the manufacturer.

My 2025 Honda Prologue Elite is experiencing multiple safety-related issues. The front CV axles make a consistent clicking noise when turning, indicating a possible drivetrain or axle defect. The power tailgate also intermittently and unexpectedly closes on its own while loading or unloading, creating a risk of head injury. In addition, the infotainment screen and digital gauge cluster will randomly shut off while driving—sometimes for up to 30 seconds—leaving me without speed, range, or other essential telemetry while the vehicle is in motion. All of which the dealer will not address or states they can't replicate.

While driving I received a warning that said “ service high voltage system” that came up on my dashboard. I have had my vehicle just for a couple of months and this is the second issue that I am having with the vehicle since purchasing it. I have taken it back to Honda who is now telling me that they have to do some tests to try and figure out the issue which seems to be a know issue which some forums show that may effect the heating system or cause you to need a complete battery replacement. I have my vehicle in service now waiting to see what the issue is but but for a brand new vehicle there has to be an even bigger problem if the issue is happening not only on my vehicle but on its sister vehicles as well the made by Chevy.

The contact owns a 2025 Honda Prologue. The contact stated that while he or his wife was driving at undisclosed speeds, the instrument panel displayed a blank screen. No warning light was illuminated. A dealer was contacted. The vehicle was taken to the dealer where it was diagnosed, and determined that the instrument panel needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and opened a case. The approximate failure mileage was 993.