There are 12 stored owner reports matching the driver assist & adas leading-label group for the 2021 Honda Ridgeline in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
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Loaded 12 of 12 matching reports.
Open the full vehicle complaint log (all categories)Forward brake assist, collision mitigation, auto headlight dash lights came on sporadically. As of today the lights are now on constant and unable to clear. Advised that the forward facing camera most likely died and a replacement due to recalibration would be 1500-2000..
The forward collision system frequently goes off from a vehicle simply driving in their lane normally. The truck alarms, shakes the wheel, and sometimes brakes automatically. This is alarming for my kids riding in the car and the braking is dangerous for cars behind me. This could cause a rear end collision.
2021 Honda Ridgeline RTL-E. Part number 36160-T6Z-A62-M1 failure, hard code U3000-49. Results in total loss of Honda Sense Safety system. Including Collision Mitigation Braking System, Road Departure Mitigation System, Adaptive Cruise Control, Lane Keeping Assist System, Traffic Sign Recognition, Auto High-Beam Headlights. This appears to be a fairly common issue across Honda models where the multipurpose camera fails, generally due to heat from exposure to sun. The replacement cost and required re-calibration via the dealer is ~$2000. Living in northern California with extreme heat, I will assume this problem will resurface after a few years resulting in another $2000+ repair.
At 48,000 miles, the vehicle began to experience multiple Advanced Driver Assistance Systems problems, including Adaptive Cruise Control, Forward Collision Warning, Automatic Emergency Braking, Forward Collision Warning, Lane Departure Warning, and Lane Keeping Assistance, which rendered all these systems inoperable. Systems that were designed to mitigate collisions became non-functional, and continuous warnings on the dashboard were a distraction while driving. Dealer scanned the vehicle with a code U300-40 Multipurpose Camera Unit/Millimeter Wave Radar Internal Electronic Failure, and diagnosed a failure of the multipurpose camera, which was then replaced and recalibrated. I have retained the failed unit after paying to have the replacement installed and calibrated. All warning lamps for the above mentioned systems flashed on my dashboard every time the vehicle was started, prior to the dealer repair. The safety of the driver and those around them was affected because repairs for this safety feature suite may be cost prohibitive to some ($2000) and they just won't fix it.
The contact owns a 2021 Honda Ridgeline. The contact received notification of NHTSA Campaign Number: 24V321000 (BACK OVER PREVENTION); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
The contact owns a 2021 Honda Ridgeline. The contact received notification of NHTSA Campaign Number: 24V321000 (BACK OVER PREVENTION); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
The contact owns a 2021 Honda Ridgeline. The contact received a notification of NHTSA Campaign Number: 24V321000 (Back Over Prevention) however, the part to do the recall repair was not yet available. The contact stated that occasionally while in reverse, the reverse camera image display would flicker a distorted image. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 15,000.
While driving on a 4 lane road with a passing lane the automatic emergency braking system started slowing the vehicle down for a vehicle in the left hand turning lane. It was not directly in front of me. The warning tone and BRAKE flashing alarm come on frequently when driving on 2 lane roads and a vehicle is coming from the other direction. I have taken it to the dealership 3 times to have it corrected and was told everything is working correctly and for me to turn the system off.
The contact owns a 2021 Honda Ridgeline. The contact stated that the back over prevention camera was distorted. The vehicle was taken to the dealer, who informed the contact that the back over prevention camera needed to be replaced; however, the part to repair the vehicle was on backorder. The manufacturer was not made aware of the failure. The failure mileage was approximately 20,000.
Automatic emergency braking has engaged on a two way highway curve a couple times until I disabled it for the remainder of the trip. The “Brake” forward collision warning screen and alarm sounds frequently on 4-lane 2-way 30 mph road with a slight curve which it mistakes car in adjacent oncoming lane as a car it may collide with, I was able to eliminate it from applying brakes be adjusting sensitivity to low but the warning still pops up. Additionally, the automatic brights feature is inadequate resulting in flashing/blinding oncoming drivers, I have resulted in turning the feature off which process is more complicated than it should be.
Vehicle veering constantly while Lane Keeping Assistance is engaged causing persistent swerving and inviding adjacent lanes as well as requiring additional distraction while system is engaged. Adaptive Cruise Control erratically and some times violently applies brakes, causing the following vehicles to constantly apply their brakes to avoid rear collision with the Ridgeline.
I have a 2021 Honda Ridgeline Sport equipped with CMBS an automatic braking system that is supposed to be a safety feature, but actually makes the car more dangerous. The problem with the Ridgeline Sport collision mitigation braking system is that it attempts to mitigate crashes when the system thinks an obstacle is ahead, but it is a false warning, and there are no actual obstacles. It appears there is a software or sensor defect in the Honda Sensing technology causing the vehicle to issue warnings and alerts to the driver and the potential to automatically hit the brakes without warning when there are no obstacles in front of the vehicle and it has not deviated from its lane. Service Advisor/Mechanic at dealership called it a computer glitch. Nothing they can do. Taking it back again to have it on record; dealership tried to fix vehicle. This vehicle is potentially dangerous with no way to correct concern at this time. Problem continues since March 2021.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
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Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.