Owner-reported complaints naming the driver-assistance system, filed with NHTSA
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Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2020 Honda Odyssey submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 210 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
The 25 most recent of 210, in the owner's own words
Front windshield mounted sensor failure on 2020 Honda Odyssey. Disabled Honda Sensing safety suite which included lane keep assist, adaptative cruise control, auto high beams which all triggered warning messages on the dashboard which all occurred at the exact same time. This problem has been reproduced an inspected by Honda of Frontenac.
The monocular camera failed causing the car to lose all ADAS features. Honda said this not a recall issue and I have to pay for the repair which is significant. Not only are all the ADAS features lost, but the dashboard flashes warnings and beeps reflecting the lost features
The contact owns a 2020 Honda Odyssey. The contact stated that while attempting to start the vehicle, several warning lights illuminated. The warning lights flashed continuously. The vehicle was taken to a dealer, where it was diagnosed with a failed multipurpose camera unit. The dealer determined that the multipurpose camera unit needed to be replaced; however, the contact was informed that the failure was not associated with the recall. The contact received notification of NHTSA Campaign Number: 26V423000 (Back Over Prevention). The contact stated that the failure was a known issue with the vehicle. The failure mileage was approximately 31,600.
U3000-49, multipurpose camera unit internal failure, no impact, no glass work
I randomly received a series of 6 warning messages when starting the car on 9/3/26. They were all warnings related to the automatic safety features such as lane departure, collision detection, auto bright lights, etc.I took it to the dealer on 9/4/26 & they diagnosed an internal failure with a multi-purpose camera embedded in the rearview mirror. The dealer ordered a new part, installed and reprogrammed and recalibrated the camera. This vehicle has been owned only by me, is kept in a garage away from weather exposure, there is no reason for this part to fail on a 6 year old car with a hefty cost to the consumer.
I am writing to issue a formal complaint regarding gross negligence, logistics failures, and deceptive service practices surrounding mandatory recall work on my 2020 Honda Odyssey. 1. Failure to Complete Recall Software Work After Overnight Retention On Tuesday, September 1, your service department texted stating: "the software update did not finish. We do need it overnight." We agreed to leave the vehicle. However, upon pickup, the infotainment display confirmed that the update was never completed and remains stuck at Step 5/6 (System Update 24084.7 / Front Control Box B.1.4.6). Retaining a customer's vehicle overnight under the guise of completing software work and returning it unfinished is a direct misrepresentation of labor performed. 2. Extreme Logistics Failure and Disregard for Customer Time At 12:55 PM on Wednesday, September 2, your department texted: "Ready to go now!" My wife arrived promptly, yet your staff forced her to wait until 2:40 PM—nearly two hours later—before physically releasing the car. This gross delay caused her to miss our children’s school pickup, forcing me to leave my workplace unexpectedly to handle child transportation due to your operational incompetence. 3. Cascading Network Faults and Critical Safety Systems Disabled Prior to service, the dashboard displayed minor Sensing suite warnings, for which your department quoted an exorbitant $250 diagnostic fee. Upon picking up the vehicle, the dashboard warning count escalated from 5 to approximately 9 active system failures. Due to the interrupted ECU software installation corrupting the CAN-BUS network, the following primary vehicle controls are now completely inoperable: Supplemental Restraint System (SRS / Airbag) (Newly triggered post-service) Vehicle Stability Assist (VSA) System Automatic Brake Hold System Electric Parking Brake (EPB) System Electric Power Steering (EPS) Hill Start Assist Honda Sensing Suite (Lane Departure, Collision Mitigation, Road Departure) Releas
Safety mitigation compoments failure that started as intermitent issues and now is consistent. Warning lights come on for Adaptive cruise control failure, Forward collision failure, Lane departure warning failure, high beam failure, lane keep assist failure and others all link back to the DTC U3000-49 internal multipurpose camera unit failure. This compenet failure puts all oppcpants and other vehicles at risk as driver have become reliant on all feature working properly to enhance safety for all. The problem has been diagnose and inspected by two different dealerships. No accident or vehicle comprimised, the camera component just fails and have talked to two other familes that have had same issue. The issues started as a inteitent flsh of all the warning lights and that moved to a constant issue. Currently you can drive the vehicle for a various amount of time and eventually the lights will go on or the dash will be lit up like a christmas tree as soon as you turn it on. Concerned as this is a vehicle that a majority of Moms and kids drive in, as is the case for our familiy.
The contact owns a 2020 Honda Odyssey. The contact stated that the Traction Control, Adaptive Cruise Control, Lane Keeping Assist System, and Road Departure Mitigation warning lights illuminated. The vehicle was taken to a dealer, where the cause of the failure could not be determined. The contact continued to drive the vehicle as it passed state inspection. While driving approximately 65-70 MPH, the cruise control suddenly failed, requiring the contact to manually steer the vehicle. Additionally, the Collision Mitigation Braking System, battery, and ABS warning lights illuminated. The contact stated that the ABS light illuminated after the brake pads were recently replaced, and the ADAS calibration was not performed. The vehicle was taken back to a dealer, who informed the contact that the monocular camera burned out due to windshield brackets; however, the contact stated the failures occurred prior to the windshield replacement. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.
2020 Odyssey Elite multipurpose camera unit internal electronic failure DTC U3000-49. Component is still installed and available for inspection upon request. Failure disabled Honda Sensing safety systems: Adaptive Cruise Control, Lane Keeping Assist, Lane Departure Warning, Forward Collision Warning, Collision Mitigation Braking, Road Departure Mitigation, Automatic Emergency Braking, and Auto High-Beam. Dash showed Honda Sensing system failure warnings. No crash, no injury. Vehicle remains drivable but without active safety features, increasing risk of crash, especially on highway. Dealer confirmed failure and reproduced it, recommended camera replacement plus ADAS static/dynamic calibration, quoted $2,243. No prior symptoms, no accident, no damage, well-maintained. First warnings appeared Aug 2026 and stayed on continuously. Manufacturer was notified and denied goodwill coverage, stated out of warranty. This is a known widespread defect — same U3000-49 failure documented in NHTSA complaints 11615376, 11584269, 11603801 for 2018-2020 Odyssey, Art's Automotive public statement on pattern, YouTube coverage 2016-2021, and eBay repair market with one seller showing 485 repairs for this exact camera and 111 watchers. Similar to prior Honda backup camera recall. Request NHTSA investigation / recall consideration.
when I start the car, I get 8 or so warnings: Adaptive cruise control, Automatic emergency braking, forward Collision warning, lane departure warning, lane keeping assistance, etc. the air bag warning for passenger also blinks. the dealer indicates this is a faulty front camera and will require about $2500 to fix it.
multipurpose camera stopped working. no direct physical damage to camera so it shouldn't need replacement after 6 years. others with honda odyssey have reported similar defect.
I went to the dealership today for my recall on the backup camera where my screen goes black in reverse. I also told me my dash lights had come on and could like lane keeping assistance, adaptive cruise control and blind spot warning. Dealership then tells me it is a faulty internal camera in the windshield and wants to charge me $2K. Is this not a recall since it happens to a significant amount of honda odysseys and pilots? Please make this a recall as it is not safe to drive my van anymore and should be apart of the recall I took it in for.
Error U3000-49 Multipurpose camera failure...Adaptive Cruise Control, Lane Assist, etc. do not function. I cannot even get a basic cruise control to function! Honda wants $2000+ to fix this problem that has become a common problem with 2020 Honda Odysseys. Please push for a recall!
Multipurpose camera internal failure disabling my all my safety features in ADAS.
Camera failed after 65,000 miles and is a known problem out there with thousands of these requiring a $2000 dealer replacement.
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.
adaptive cruise control, lane keep assist system problem, collision mitigation system problem, road departure mitigation system problem and auto high beam problem
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.
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.
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.
All advanced driver safety features failed. It appears there is an issue with the front camera.
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.
Font camera that control lane assist, cruise control, breaking, etc, stopped working less than 5 years old
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.
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.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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