2020 Honda Odyssey Driver assistance Problems

Camera failed after 65,000 miles and is a known problem out there with thousands of these requiring a $2000 dealer replacement.

NHTSA ID

11756449

Incident

Aug 12, 2026

The electrical component is failing. I have brought in this vehicle 2 times for failed electrical issues over several years (around 2 years), and it only has 52,000 miles currently. The back up sensors no longer work, as well as warning lights for the following began to appear a year ago: collision mitigation, adaptive cruise control, lane keeping assist, road departure mitigation. Sometimes, our electrical side door will not close and will keep opening when trying to shut. This electrical issues has been draining our battery, and while driving, my car shut off in the middle of the street while I was waiting for a light. After a few attempts, I got my car started again. We replaced the battery, and a few days later the car would randomly turn on and I could not use an electrical key to open the car door. Only way to open it is with the physical key. The battery had to be unplugged in order to stop the car for randomly turning on. All electrical systems would turn on in the car, including the alarm and radio, even if the radio had been off when the car was last turned off. The car has been inspected by Honda mechanics, who told me the electrical component is dying, but they don't know why, the car isn't that old, and it has very few miles on it.

NHTSA ID

11753893

Incident

May 1, 2026

adaptive cruise control, lane keep assist system problem, collision mitigation system problem, road departure mitigation system problem and auto high beam problem

NHTSA ID

11753174

Incident

Jul 25, 2026

The following safety warnings were displayed on my 2020 Odyssey dashboard as early as January 2025: Road Departure Mitigation System Problem Auto High-Beam Problem Adaptive Cruise Control Problem Lane Keeping Assist Problem Collision Mitigation System Problem Currently, the warning messages are displayed continuously without fail upon starting/driving the vehicle. Per my diagnosis through my local Honda service, it is an internal failure with the front-facing camera associated with these safety features.

NHTSA ID

11752992

Incident

Jan 1, 2025

Multiple sensors malfunctioned. Mechanic read code U3000-49 (Multipurpose camera unit/millimeter wave radar internal electronic failure). There was no collision or damage of any sort that led to this malfunction. The following systems no longer work: Adaptive Cruise control Collision mitigation system Lane keeping Assist Road departure mitigation system Blind spot info system Tire pressure monitor system Transmission system All of these failures started at exactly the same time. This severely compromises the ability to use this vehicle safely as these systems are all designed to prevent various safety hazards.

NHTSA ID

11751624

Incident

Mar 17, 2026

I believe the forward facing camera is having electrical issues which is causing the vehicle not to engage lane departure, traction control, Lane keeping assistance, emergency braking, adaptive cruise control, AC intermittently blowing warm and cold. There are four or five lights on the dash about this.

NHTSA ID

11750797

Incident

Mar 15, 2026

All advanced driver safety features failed. It appears there is an issue with the front camera.

NHTSA ID

11750364

Incident

Jun 18, 2026

The monocular collision-avoidance camera 36160-THR-C01 has died on my 2020 Honda Odyssey EX-L. As a result, the following safety features have deactivated causing serious concerns for my safety on the road: ACC problem Collision Mitigation Problem Lake Keep Assist Problem Auto High Beam Problem The car is not even 6 years old and this $1000+ defective camera has rendered my car not up to safety standards.

NHTSA ID

11750157

Incident

Jun 1, 2026

Font camera that control lane assist, cruise control, breaking, etc, stopped working less than 5 years old

NHTSA ID

11750137

Incident

Mar 18, 2025

I am the original owner of a 2020 Honda Odyssey Elite. On July 7, 2026, at approximately 76,127 miles, five safety-system warning messages suddenly appeared simultaneously upon startup: Adaptive Cruise Control Problem, Auto High Beam Problem, Road Departure Mitigation System Problem, Collision Mitigation System Problem, and Lane Keeping Assist System Problem. Restarting the vehicle several times did not clear the warnings. After the vehicle sat for approximately 30 minutes, the warnings disappeared. On July 8, after driving approximately 400 miles home, I parked the vehicle outside in approximately 110-degree heat. About two hours later, upon startup, the same five warnings reappeared simultaneously, along with the Brake System warning light. An authorized Honda dealer confirmed the multiple warnings and performed a DTC scan. Code U3000-49 was stored, indicating an internal failure of the multipurpose camera located behind the rearview mirror. Further testing confirmed that camera replacement was required. The dealer replaced and recalibrated the multipurpose camera at 76,567 miles. The repair cost was $1,631.80 for parts and $717.50 for labor, totaling $2,349.30. I am concerned that failure of a single internal camera component simultaneously disabled multiple driver-assistance and collision-avoidance safety systems. I believe NHTSA should investigate whether multipurpose camera failures associated with DTC U3000-49 represent a recurring safety defect in 2020 Honda Odyssey vehicles.

NHTSA ID

11749836

Incident

Jul 8, 2026

The front-facing Honda Sensing camera in my 2020 Honda Odyssey overheated in a 90deg climate. This triggered multiple dashboard warning lights: Adaptive Cruise Control (ACC) Problem, Lane Keeping Assist System (LKAS) Problem, Road Departure Mitigation (RDM) System Problem, Collision Mitigation Braking System (CMBS) Problem, BRAKE System Problem, and Auto High-Beam Problem. The Honda dealership quoted me $1850 to fix it and they said it was a well-known error. There were NO issues with my car prior to this problem. I keep up with all routine maintenance, oil changes, timing belt and water pump replacements, etc. Not only are these safety features inoperable, but these warning lights are very distracting to the driver, but worse than that- I would be unaware of other system failures since I have so many warnings displayed.

NHTSA ID

11749141

Incident

Jun 26, 2026

Front camera default and required replacement totaling $2,400.00 in repair costs. This is a safety issue as the Adaptive Cruise Control, Front Collision Warning, Automatic Emergency Braking, and Lane Departure Warning were all disabled due to the front camera malfunction. This should be a recall by Honda as it seems to be a common mechanical failure in Honda Odysseys from 2018-2022.

NHTSA ID

11748885

Incident

Jun 25, 2026

On 5/28/26, I went to get my van checked at a repair shop through my HealthCar warranty and I was told that I needed a system update on my brake system/ADAS/LKAS/ACC systems. All the lights beeped and were lighting up on my dash. It would go on and off from time to time, usually when it was more hot out. They told me to take to dealership and they need to do a system update and should fix no additional charge. I took it to the Honda dealership service department on 7/6/26 and was told it is the multipurpose camera has an internal failure and it would cost me $2,443.00 to repair it, plus I had to pay them a diagnostic fee. I have researched and been told by other repairs shops that this problem has been occurring often and it seems due to heat is the reason this happens.

NHTSA ID

11748665

Incident

Jul 6, 2026

Driving on the road and heard static noise from the infotainment system after an update. Few minutes later the dashboard had multiple warnings and disabling the entire Advanced Driver Assistance Systems (ADAS). The Honda dealer inspected the front camera in the top of the windshield and said it needed to be replaced.

NHTSA ID

11748549

Incident

Jun 16, 2023

The vehicle suddenly displayed warning signs for cruise control, lane assist, forward collision control and more on the dashboard. These features no longer work and warnings turn on every time we start the car and remain on the whole time.

NHTSA ID

11748316

Incident

Mar 24, 2026

The forward facing ADAS camera has been reporting U0104 error. This resulted in many advanced safety features failing, including adaptive cruise control, automatic emergency braking, forward collision warning, and lane departure warnings. The problem was confirmed and repaired by a independent service center. The problem first appeared on June of 2026

NHTSA ID

11748259

Incident

Jun 1, 2026

My van is suddenly giving me warnings that include collision mitigation, road departure mitigation, adaptive cruise control, lane-keep assist, brake hold system, and traffic sign recognition. My safety is at risk if the front camera system is not working/faulty. I was unaware of the problem and had my cruise control on when it just went off and there were warnings popping up on dashboard. There was a class action lawsuit filed against Honda on 7/2/26 in CA for certain Honda vehicles. I have had my van put on a computer that has given us the error code and is a front camera failure. The issue first appeared on 7/2/26. It will suddenly start flashing warnings when I’m Driving. It will also flash warnings right after I start the vehicle.

NHTSA ID

11748131

Incident

Jul 2, 2026

I purchased my 2020 Honda Odyssey Brand new in California. On 6/27/2026 upon starting the vehicle up in the morning there was a myriad of warning messages that came up on the cluster for the first time out of the blue. The battery was replaced a few months ago with a new one and no MIL lights were illuminated prior to this morning. Now an amber BRAKE SYSTEM tell tail symbol is illuminated on the cluster. 1: Adaptive C.C. problem 2: Auto high beam problem 3: Collision mitigation braking system problem 4: Lane Keep Assist problem 5: Road depature mitigation problem The vehicle still is able to run and drive, but none of these standard vehicle safety features are working as expected. I can't even apply cruise control now. On each key cycle the error messages come back up, and when driving they also stay in the center of the cluster and make annoying dinging sounds. I disconnected the battery ground cable from the chassis for 15 min and reconnected, but the errors come back on instantly once the van is started up. With my OBD scanner, there is a code being set U0104-00. I have not paid yet to have the van inspected formally by the dealer.

NHTSA ID

11747236

Incident

Jun 27, 2026

Multipurpose camera is defective- broken after only 80,000 miles. No longer functions at all. No automatic emergency braking, no forward collision warning, no lane departure warning, no lane keeping assistance, no adaptive cruise control. Dangerous now without all those computer controlled safety functions. $2400 replacement. I don’t have $2400.

NHTSA ID

11742077

Incident

Jun 1, 2026

one morning randomly multiple warnings turned on on the dashboard of my 2020 honda odyssey . the following warnings turned on and have stayed on since: Adaptive Cruise Control Problem, Lane Keeping Assist Problem, Collision Mitigation System Problem, Road departure Mitigation Problem, Auto High-beam problem, and Brake System. This appears to be a common issue when searching online and appears to be a sensor issue.

NHTSA ID

11741514

Incident

Mar 14, 2025

Forward Camera Not Working. Because of camera defect the following safety features are not working Adaptive Cruise Control Automatic Emergency Breaking Forward Collision Warning Lane Departure Warning Automatic Head Lights

NHTSA ID

11741240

Incident

Sep 27, 2025

The ADAS system doesn't work. The forward collision system, adaptive speed control, and lane keeping assist have all shown malfunction errors and no longer work.

NHTSA ID

11741054

Incident

Mar 3, 2026

The warning messages keep popping up regarding the lane assist system, Adaptive cruise control not working and dealer states that the camera needs replacement and this is common issue for most Honda cars so should be recalled

NHTSA ID

11738170

Incident

Nov 6, 2025

Vehicle suddenly starts having multiple lights and warnings come up such as road departure mitigation, adaptive cruise problem, collision mitigation, auto high beam, etc. reading online it seems multiple people with honda oddysey are experiencing the same issues.

NHTSA ID

11737668

Incident

May 8, 2026

The blind spot system was a problem when I purchased the car, it spent 15 days in service in the first 30 days of ownership to address the issues. Now, I after another light came on I discovered 9 open recalls on the vehicle that were not disclosed prior to purchase.

NHTSA ID

11736255

Incident

Apr 30, 2026