2019 Honda Odyssey Driver Assist & ADAS Problems

On Interstate 65 4/4/2026 during light traffic, after a rain storm, however with no rain currently occuring, our vehicle experienced an event where the collision avoidance system dropped out speed from 70 miles an hour to 35, nearly causing a rear end clission with a vehicle behind us. The dashboard made no indication of any occurance, and the breaking seemed to occur with no indicator of there being anyting in front of us at the time of the incident. This has occured before however after rainstorms, and while attempting to make left hand turns. This however was the first incident in which it clearly caused a near miss collision event.

The ACC is failing in the car. It is due to a faulty radar sensor located behind the rear view mirror that according to the dealership gets to hot it the sun and begins to deteriorate.

All of a sudden, I received multiple warnings that the forward collision warning system, lane keeping assistance system, automatic emergency braking system, adaptic cruise control, were not working. After looking for this part (front camera: 36160-THR-A11-M1), I see that it is very expensive to purchase and install. More importantly, I have come to learn that this part is failing on my 2019 Odysseys. I feel that the manufacturer should be held responsible if this is such a widespread problem.

The front monocular camera assembly (Honda part number 36160-THR-A81) on my 2019 Honda Odyssey Elite failed and is available for inspection upon request. When the failure occurs, the vehicle displays multiple warning messages including “Collision Mitigation System Problem,” “Adaptive Cruise Control Problem,” “Lane Keeping Assist Problem,” “Road Departure Mitigation System Problem,” and “Auto High Beam Problem.” As a result, several driver-assist safety systems are disabled, including automatic emergency braking, adaptive cruise control, lane keeping assist, and road departure mitigation, which reduces the vehicle’s active safety features and increases the risk of a collision. The warnings appear simultaneously on the dashboard while driving and remain active until the vehicle is restarted. The condition has been reproduced multiple times and has been confirmed during diagnostic inspection by a service technician. The camera failures are very common and are a design defect. The design was changed in later years but there was not a recall for the 2019 models. This is a very expensive fix and should be covered by a recall.

The car has started giving warnings every time I turn it on (as of 6 months ago): adaptive cruise control problem, collision mitigation system problem, auto high beam problem, lane keeping assist problem. It seems there must be a fault in the windshield camera that renders all these safety features useless. The repair shop stated that windshield camera isn’t working and is a $2k or more to repair. I am now driving a minivan that doesn’t have many important safety features and this is very dangerous.

All Honda Sensing / ADAS safety warnings appear at the same time while driving or shortly after starting the vehicle. When this happens, all driver assistance systems are disabled, including: •Adaptive Cruise Control (ACC) •Lane Keeping Assist (LKAS) •Collision Mitigation Braking System (CMBS) •Road Departure Mitigation •Automatic High Beam When the failure occurs, the vehicle displays multiple safety system warnings and the entire driver assistance system shuts down, leaving the vehicle without any ADAS safety features.

Failure of camera unit leading to all safety systems requiring it becoming non operative. Well known issue and widely reported.

Warning lights stay on for: Adaptive cruise control problem (ACC); Auto high-beam problem (A); Road departure mitigation system problem; collision mitigation system problem; lane keeping assist problem (LKAS); brake system lights. Lights will not clear. Dealership diagnosed for replacing monocular camera on front windshield/mirror. Gary Smith Honda replacement cost $2364 on 20Jan2026.

The front camera that is responsible for ADAS suddenly died and it is very vurnerable to heat. The unit gets very hot and it gets hot quickly. The lifespan of the unit is very short and the dealer is asking for $2000 to replace it like they have seen this pretty often.

Sensor issue that is causing safety concerns with cruise control, lane keep assistance. Forward collision issue, etc.

Honda sensing stopped working and threw a bunch of errors about ACC, LKAS, Collision mitigation, auto high beam error, forward collision, lane keep. Apparently the camera had an internal fault without any prior warning. Also vehicle’s timing belt tensioner already deemed leaking at just 75,000 miles, well below the 100k replacement point, despite regular checks and maintenance at Honda dealers. Front suspension leaking, honda replaced only 1, and declined to replace both, as recommended by dealer mechanic. If i did not have honda care, i would be left with a very large repair bill for critical components of the drivability and safety of the vehicle. This is not acceptable.

While driving with my family, my vehicle experienced a sudden and total failure of the front-facing multi-purpose camera mounted behind the windshield. This component is the primary sensor for the Honda Sensing suite. The failure caused multiple critical safety systems to become inoperative simultaneously, including the Collision Mitigation Braking System (CMBS), Lane Keeping Assist (LKAS), and Adaptive Cruise Control (ACC). These systems are essential for crash avoidance and driver assistance.

Suddenly, all the Lane Keeping Assistance, Auto Beam Headlights, Forward Collision Warning, Adaptive Cruise Control came on. When I took it in for diagnosis, they claim that the Camera Assembly Monocular no longer works. From searching forums, it appears this is a known issue. This is a safety issue and should be recalled.

Driving on the interstate with cruise control. All of a sudden the car braked (no one in front within eye shot) and cruise control stopped. I had to tap the brake manually then accelerator to get the car back under my control. Ever since then I get ACC, LKAS and other warnings when the car starts up. It seems like the front camera catastrophically failed while driving and almost caused the car to come to a complete stop on the interstate. It was very scary.

Started up the van and the following appears on the dash: ACC problem Collision Mitigation Problem Lake Keep Assist Problem Auto High Beam Problem Safety features unavailable when driving vehicle. In my research this issue has occurred with other owners of the vehicle as well.

After we took the car in all of a sudden randomly these warning lights will come on and my D for drive keeps flashing. LKAS, ACC, Collision Avoidance, Auto High Beam Problem And brake system warning. Sometimes some of them sometimes all of them. I read it’s a common problem but there hasn’t been a recall on it.

All of the alarm lights are going on at once, immediately when the car is turned on. This includes the Collision Mitigation System Problem, Adaptive Cruise Control System, Lane Keeping Assist System (LKAS), Break System. I am told by my local garage that it is a Odyssey radar system failure, that probably originates in the camera or computer, but that they cannot fix it or get parts for it. It is unclear if these systems work or not.

Center camera has gone out. Millions of vans in the same position as me.

Vehicle has code U3000-49 in the MCU module. All vehicle safety systems have shut down and are no longer working until vehicle is repaired (lane assist, collision mitigation, adaptive cruise control, road departure, etc.) Multiplex Camera Unit is on national back order with no ETA available. Vehicle has 5 warning lights and multiple messages that keeping popping up on the cluster.

We began getting several warnings related to Adaptive Cruise Control, Collision Detection, Lane Departure not working. This was due to the multipurpose camera internal failure. The camera had to be replaced by a authorized Honda Dealer at a cost of $2,200. While the car was drivable no safety features related to the multipurpose camera were available. There were no indications of issues prior to the camera going bad. Due to the cost of replacement I would think that a large portion of drivers do not get the camera replaced and continue to drive the vehicle without use of the safety features provided.