2021 Honda Pilot Driver Assist & ADAS Problems

Braking system and cameras defective. Vehicle will flash BRAKE when nothing is in roadway. This will also cause vehicle to hard brake. When on interstate, cruise control no longer functions properly due to camera sensors reading a vehicle is in front of my vehicle when there is no other vehicle near. This causes braking system to activate and/or slow the cruise control down. This is a major safety risk for everyone involved, especially my children in the vehicle. This is a known Honda issue. This needs remedied before someone gets hurt and a lawsuit ensues. Fix the braking system and cameras!

Front camera needs to be replaced. According to several Honda forums, this is a very common problem requiring the front camera to be replaced. All safety features requiring the camera no longer work.

Vehicle Information: 2021 Honda Pilot Elite Component: Forward Collision Avoidance: Camera System Lane Departure: Lane Keeping Assist Advanced Driver Assistance Systems (ADAS) Failure Description: The windshield-mounted forward-facing camera (Lane Keeping Assist System / Honda Sensing camera) failed without warning on my 2021 Honda Pilot Elite. This camera is mounted behind the windshield and controls multiple advanced safety systems, including Lane Keeping Assist, Lane Departure Warning, Forward Collision Warning, and Collision Mitigation Braking. There were no warning lamps, dashboard messages, or other symptoms prior to the failure. The malfunction appeared randomly approximately one month ago. The issue was diagnosed and confirmed by an authorized Honda dealer service department. I was informed that the windshield-mounted camera system requires replacement and was quoted approximately $1,800 for the repair. Because this repair is extremely expensive and currently unaffordable, I have lost multiple critical safety features. The vehicle no longer has functioning Lane Keeping Assist, Lane Departure Warning, Forward Collision Warning, or related Honda Sensing technologies. The sudden and complete loss of these safety systems significantly reduces vehicle safety and increases the risk of unintended lane departure or reduced collision avoidance capability for myself, my passengers, and others on the road. I believe a critical safety system should not fail without warning and should not be this costly to repair, especially when its failure disables multiple core safety features. This is a known issue across multiple threads and owners and Honda should take ownership and recall this issue. The vehicle and failed component are available for inspection upon request.

The windshield camera has malfunctioned causing 5 different safety warnings to appear and these functions are unavailable now. It has been evaluated by a dealership and they claim that it has to be replaced at a cost of $2100. This is a pretty widespread issue in these Pilots with varying mileage. I would expect much better from a Honda product.

Problems started showing on car a week ago. Tested battery and it was not holding a charge. Replaced battery and problem still persisted. Car is now at dealership and they are quoting close to $2000 due to failure for internal windshield camera. Car has right over 78k miles. This is a safety issue.

The backup camera feeds to the infotainment screen integrated into the radio. This screen intermittently fails to illuminate and does not allow the backup camera feed to be be visible rendering the backup camera inoperable.

The front camera has malfunctioned after locking down the brakes on my vehicle. Without the camera, the automatic braking system, forward collision, lane departure, adaptive cruise control, and high beam are no longer functioning. While the high beams are not as big of a deal, the safety features such as the braking system and forward collision are of more significance.

I am submitting this complaint to formally report a serious and widespread safety defect involving the front-facing camera system on my 2021 Honda Pilot. This defect has resulted in multiple safety system failures and has placed myself, my passengers, and other motorists at unacceptable risk. The front camera on my vehicle does not function as designed, which has caused the complete loss or repeated failure of critical safety features, including adaptive cruise control, lane keeping assist, lane departure mitigation, collision mitigation braking, and other forward-facing driver assistance and alert systems. These systems are not optional or convenience features. They are advertised and sold as essential safety technology intended to reduce accidents, mitigate driver error, and protect human life. Their failure substantially impairs the vehicle’s safety performance and creates a foreseeable risk of serious accidents, injuries, or fatalities, particularly during highway driving or emergency situations. When I sought assistance from the dealership, I was informed that Honda would not cover the repair because the vehicle exceeded a mileage threshold. This rationale is unreasonable and misleading. A front-facing camera is not a wear-and-tear component and has no logical connection to mileage accumulation. It is an electronic safety system whose premature failure suggests a defect in design, materials, or manufacturing. I then contacted Honda directly, and the manufacturer again refused to provide assistance, citing mileage alone while failing to address the safety implications or defect characteristics. This refusal appears to be an attempt to avoid responsibility for a known safety-related failure rather than a legitimate warranty determination. Further research reveals that this issue is not isolated. Numerous Honda owners have experienced identical front camera failures resulting in the same loss of safety systems. The consistency, frequency, and similarity of th

On multiple occasions the hazard mitigation system has picked up on hazards that aren't there causing rapid braking AND steering over correction. Currently the button on my vehicle that has an image representing the ability to turn the system off doesn't appear to be connected or working. I have always left the system on as it felt "safer" when I bought the vehicle new. I haven't even tried to turn it off until recently when the system seemed to start malfunctioning. Today (11/19/2025) while traveling the interstate for a routine doctor appointment the adaptive cruise control randomly shut off as I was driving multiple times. If I changed lanes and a vehicle was in front of me the adaptive cruise control would just shut off with no warning or alert rather than adjust the speed as the system is designed to do. Once I exited from the interstate at a traffic light (green, turning left) the lane assist overcorrected, the steering wheel got stiff and it was jerked into the other lane almost causing a collision. This is very concerning as I was very fortunate not to have been involved in a collision today thankfully the other driver was paying attention and evaded. Each incident there has been ZERO warning. There have been a couple times recently where the system randomly fails and says there is a problem, but within minutes come right back on and operates properly until it randomly malfunctions again. This has occurred very sporadically over the past 6 months with incidents rapidly increasing over the past 3 days to the point I am very nervous to carry my children in this vehicle any longer. This vehicle was purchased as the primary vehicle for our family and our purchase was strongly influenced by Honda's "safety", but now that's very much in question as I understand many other Honda owners are experiencing the same Honda system issues. We are in the process now of having it scheduled with Honda, but this should not be acceptable from any manufacturer.

Vehicle is setting multiple faults for ADAS system. LKAS, ACC, collision mitigation system, auto high beam lights inoperable. Forward facing camera in the top of the windshield has failed.

The contact owns a 2021 Honda Pilot. The contact stated that while attempting to reverse, the rearview camera became inoperable. The contact stated that the rearview camera image was blank. The vehicle was taken to the dealer, but was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 55,000.

Dash warning lights come on for Lane keeping assist, collision mitigation, ACC, brake system, auto high beam.

The following warning lights: adaptive cruise control problem, lane keeping assist, collision mitigation system, road departure mitigation problem, auto high beam problem. Honda estimates over $2000 to repair? From what I understand there are many other Honda's with these issues! With these items not functioning, it defeats many of the safety features we bought the car for. Exact date of when it began was last summer.

I have photos, but unable to up load at this time. Suddenly, 9 different consecutive warning messages with bell associated with each, appeared on the instrument panel. The barrage of these 9 messages continued until I shut the engine off. I was in a very congested parking lot when this began. The Pilot was subsequently checked for codes and battery condition. The evidence suggests the VSA Modulator. The Messages continue when powered up with or without the engine running. Lane keep assist problem. LKAS All wheel drive system problem. VSA problem. ACC Adaptive cruise control problem problem. Road departure mitigation system problem. Collision mitigation system problem. Collision mitigation system problem. TSA trailer stability assist problem. Hill start assist problem. Power steering system (EPS) problem. Plus: AWD, Brake System and steering caution lights remain on continuously. I am very glad we were not towing our travel trailer this week.

The 2021 Honda Pilot would randomly flash brake, which would lock up the steering wheel, electronic warnings going off when nothing was there, and then all of the CMBS warnings came on. Dealer charged for diagnosis, and requires $2,300.00 to fix the sensor. The vehicle was never in an accident, and various ghost electronic issues would be present over the last few years before the system failed with multiple warnings.

The collision mitigation braking system problem, adaptive cruise control problem, lane keeping assist problem, road departure mitigation system problem and auto high-beam problem. All these are keep showing on my dashboard.

It is a horrible system that makes driving with it on more unsafe. It never knows where the lanes actually are and makes adjustments that take you out of the lane all the time. It's unusable and unsafe

All safety/collision prevention systems related to camera have become inoperative. Vehicle will not lane keep assist, emergency brake, or notify of possible collisions. Problem occurs every time vehicle is turned on

Infotainment system doesn't work, including maps, and backup camera. I have read this is a common problem, but Honda isn't doing anything about it.

Multiple safety features are failing on this 2021 Honda Pilot. At startup, I get the following errors: Collision Mitigation System Problem, Road Departure Mitigation System Problem, Adaptive Cruise Control Problem, Lane Keeping Assist Problem. Dealership says it is an infotainment system problem and it will cost about $1,200.