Which parts fail
Components named in complaints (automatic emergency braking, adaptive cruise, lane keeping, backup camera).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2020 Honda Ridgeline owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2020 Honda Ridgeline. The contact stated that the rearview camera was intermittently inoperable while reversing. The contact stated that upon turning off and restarting the vehicle, the rearview camera became operable. There was no warning light illuminated. The contact received notification of NHTSA Campaign Numbers: 24V321000 (Back Over Prevention), and 24V064000 (Air Bags); however, the parts to do the recall repairs were not yet available. The local dealer was notified of the failure and informed the contact that the vehicle could not be repaired under NHTSA Campaign Number: 24V321000 (Back Over Prevention); unless the rearview camera image was blank and inoperable while reversing. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The manufacturer was made aware of the failure. …
The contact owns a 2020 Honda Ridgeline. The contact stated that while attempting to reverse, he became aware that the rearview camera was not functioning as needed. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 22V867000 (Back Over Prevention) but the VIN was not included. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was 45,000.
The contact owns a 2020 Honda Ridgeline. The contact stated that while shifting into reverse, the back-up camera occasionally failed to display an image. The contact received notification of NHTSA Campaign Number: 24V321000 (Back Over Prevention) and took the vehicle to the local dealer for the recall remedy. The recall repair was completed; however, the failure persisted, and the screen failed to display an image. The local dealer was made aware of the failure. The manufacturer was made aware of the failure. The failure mileage was approximately 15,000.
The contact owns a 2020 Honda Ridgeline. The contact stated that the back-over prevention camera image failed to display an accurate image of the rear of the vehicle when shifted into reverse. The vehicle was taken to a local dealer where it was diagnosed that the back-over prevention camera wiring harness needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 60,000.
The contact owns a 2020 Honda Ridgeline. The contact stated that while driving at an undisclosed speed, the back over prevention camera failed to operate as intended. The contact stated that the back over prevention camera displayed a black screen. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 60,000.
Scheduled my vehicle for recall related to the tailgate/camera/rear area warning system harness replacement for today 10-15-2024 after two notices. Upon arriving for my appointment, I learned that the dealer, Voyles Honda Marietta, GA does not have the parts, nor can they provide a time/date when parts would be available. Further, the Service Manager, Marvin, said the same parts issue is present with a fuel pump and electric steering campaign currently released. From prior involvement with many heavy truck campaign recalls, I know the O.E.M. Is required to have adequate repair parts to satisfy the released safety recall. …
My Honda 2020 ridgeline has intermittent faults on the dash monitor, it displays ACC, LKAS, Collision Mitigation, High beam, lane departure warnings, and sometimes transmission problem. I am told it is the muti cable assembly sensor on the front window not communicating with the other sensors. I took my car to auto zone and they stated no communication, due to a bad battery. I replaced the battery, and it still has the multiple errors/ fault codes. During research several people have had this problem with Honda vehicles. At times it goes away for a day or two and then comes back with the same faults. It seems like a faulty part. The dealer wants 1800 for repair and calibration of sensors, this was after they ran a diagnostic test and found no engine faults/codes.
Several times over the past two months, I started having issues with the auto engine idle stop. I'm at about 25,000 miles and my vehicle has completely stalled out 4 times in two months. This is due to a failure of the auto engine idle stop system to restart the engine after I take my foot off the brake pedal. This has put my safety and others at risk in all of these incidents, all happened in busy, high traffic areas. In one instance it took a full minute to be able to turn my car back on. One time it triggered the collision system, and I couldn't restart my car for several minutes. After looking up this issue, I know there is an ongoing NHTSA investigation into the Honda Pilot models, but this needs to be expanded to the Ridge line models.
1st time we were driving on a mountain highway at 70 mph, when the truck self applied the brakes and we were nearly rear ended by another truck, there was no vehicle directly in front of our car to cause this to happen. I took the truck to the dealer as soon as we returned home, they found nothing wrong! A few weeks later this happened again for no apparent reason however thus time no other car was near enough to cause a incident. I returned the truck to Honda Service after 1st calling Honda USA and having them document our concerns. Once more they could offer no reason or correction. This continues to randomly happen to thus day. I have 2 service documents to back up both times I returned to the dealer.
The vehicle's front-facing monocular camera experienced an internal component failure that triggered a permanent error code U3000-49. This hardware failure instantly disabled multiple core safety features simultaneously, including the Adaptive Cruise Control, Lane Keeping Assist (LKAS), Road Departure Mitigation, and Collision Mitigation Braking System (CMBS) ABS Braking and High Beam Support with all dash lights remaining on. The sudden, unexpected loss of automatic safety braking and driver-assist features while moving poses an immediate highway safety risk.
Related recalls
Back over prevention › Sensing system › Camera
Honda (America Honda Motor Co) is recalling certain 2020-2024 Ridgeline vehicles. The rearview camera (RVC) tailgate wire harness may fatigue and break, which can prevent the rearview camera image from displaying.
Remedy: Dealers will replace the RVC tailgate wire harness, free of charge. Owner letters were mailed November 8, 2024. Owners may contact Honda service at 1-888-234-2138. Honda's number for this recall is YI7.
NHTSA investigations
Rear-View Camera Failure
On February 13, 2024, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE24004 to assess alleged failures of the rear-view camera (RVC) in 2020-2023 Model Year (MY) Honda Ridgeline vehicles. At this time, ODI has received a total of 50 complaints with allegations of the RVC image failing to display when the vehicle was in reverse.
Collision Avoidance complaints in other Ridgeline years
Frequently asked questions
How common are collision avoidance problems on the 2020 Honda Ridgeline?
NHTSA has 31 complaints about the driver assistance of the 2020 Honda Ridgeline, 18% of the model year's 169 complaints. The component named most often is automatic emergency braking (9 mentions).
Is there a recall for 2020 Honda Ridgeline collision avoidance problems?
Yes — NHTSA recall 24V-321 (camera, May 9, 2024). Recall repairs are free at authorized dealers.
At what mileage do 2020 Honda Ridgeline collision avoidance problems start?
Half of the complaints with a recorded mileage happened before about 45,000 miles, and 50% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.