Adaptive Cruise Control problems of the 2025 Honda Ridgeline

Unsafe auto high beams. They do not come on over 45mph. They have a mind of their own and seem to always come on and off at the wrong time. Also is dangerous to the oncoming vehicles that become impaired due to the high beams coming on when another vehicle is approaching. Especially most dangerous when you are on a 2 lane highway. Also the adaptive cruise control is inconsistent and seems to be very laggy and brakes way too hard.

While driving with the adaptive cruise control and the road departure mitigation system engaged, then fails and disengages. The warning system indicates a problem that should be reported to the dealer. This has happened on multiple occasions and was repaired by the dealer when the car had 254 miles by replacing the tailgate upper wiring harness and the brake/cruise control switch. The part number replaced was 36750-ty0-j11 35350 sw. Since that repair, the problem has resurfaced at 4385 miles multiple times. After stopping and restarting the car multiple times, the systems apparently resets itself, but the problem reoccurs multiple times after that. I have no confidence that the system is consistently reliable. The problem initially occurred on Jan 17 2025 and again sept 19, 2025.

The contact owns a 2025 Honda Ridgeline. The contact stated that the high beam lights turn on and off while driving 45 mph or above at night. The contact stated that the headlights were flashing oncoming drivers. The contact had to deactivate the feature. Additionally, while driving on two occasions using the adaptive cruise control, the vehicle was braking hard. The contact was concerned about being rear-ended. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the vertical mounting of the radar sensor was slightly off. The dealer leveled the system. The vehicle was repaired, but the failure recurred. The manufacturer was contacted and opened a case. The approximate failure mileage was 99.