I keep getting a brake system light come on. Multiple warnings about the adaptive cruise control, lane keep assist, collision mitigation, and auto high beam. I used a code reader and it came back with code U3000-49 Multipurpose Camera Unit/Millimeter Wave Radar Internal Electronic Failure. I have seen multiple reports of this online regarding honda vehicles. Honda quotes repairs anywhere between $1500-$2500 to repair this unit. This should not be an issue on a car that is only 6-7 years old, 5-6 years old at the time the issue started. Given the seriousness of this issue and the amount of reports about this same issue online, a recall of this unit needs to be issued.
2019 Honda Odyssey driver assistance complaints
Page 4 of 11: complaints 71 to 100 of 290, newest first, as owners wrote them.
Either the ADAS camera or the radar sensor in the van is not functioning properly. The odyssey has know issues like the camera overheating and dies or the radar can be mis aligned by going through a car wash. We do not know which is not working in our van but we are now locked out of basic features on the van. The biggest problem is that cruise control no longer functions. I had previously turned adaptive cruise control (ACC) off and reverted the van to normal cruise control (CC). With the new issue, I al locked out of using CC even though it does not rely on the ADAS camera or the radar sensor.
Root problem seems to be the forward looking camera and/or radar, though there are 8-10 codes in total. This one looks like the primary problem: U3000-49 — Multipurpose Camera Unit / Millimeter Wave Radar Internal Electronic Failure As a result, we no longer have safety features such as emergency braking, collision warning, lane departure warning, or lane keeping assistance. Additionally, cruise control is no longer available. The vehicle is still drivable, but without any of the safety features reliant upon the camera and radar. There one one trip in the last few days where everything functioned normally, but on every other trip these warnings have shown up as soon as the vehicle is started. The warnings for all of those systems are displayed in the gage cluster, as well as a “brake system” light being visible. Sometimes, when the vehicle is started, additional warnings are displayed for blind spot indicator and the transmission. There were no symptoms leading up to this. Everything worked and looked normal one morning, then suddenly appeared when the vehicle was started later that evening. We have not yet had the vehicle inspected by anyone as it’s currently a holiday weekend.
The vehicle is showing persistent electrical and communication fault codes involving the ECM, ABS, and EPS systems, including P16E2, P16E5, P16E7, P16E8, U0401, and U0416. These codes return immediately, which suggests an active fault rather than a temporary low-voltage condition. The issue appears to involve the battery sensor and/or the related communication network between control modules. Because the faults involve ABS and EPS communication, the concern is that braking-related or steering-assist systems may not be receiving correct data. This creates a potential safety risk because the vehicle may experience intermittent or unreliable control-module communication, which could affect steering assist, braking-related warnings, or overall drivability. The warning lights and diagnostic codes first appeared before the vehicle was put back into normal use and have continued to remain present. The problem has been reproducible because the codes reappear right away after being cleared. No dealer or manufacturer diagnosis has been confirmed yet, so the exact root cause remains unresolved.
When those error codes appear, those safety features become unavailable during driving. These error usually come up when I just start the car.
2019 Honda Odyssey began having intermittent display, that progressed to constant display, of multiple warning messages regarding safety features related to multiocular/multipurpose camera unit. Vehicle is unable to perform LKAS, ACC, lane departure assist, autobraking, etc. Honda dealership states this is a well known issue related to a faulty camera that has to be replaced to utilize these safety features. Without replacement, the vehicle display is overtaken by a recurring onslaught of warning messages making instrument panel difficult to view. The specific part is listed as "2019 Honda Odyssey - Camera Assembly Monocular (Rewritable) - Honda (36160-THR-A11)" and the error code is U3000-49.
ADAS system, camera behind windshield. Multiple safety systems malfunctioning Honda sense with all ADAS safety features are not working and risk the emergency braking system to engage without reason. Caliber Collison and Protech have diagnosed and confirmed the problem. Honda service has confirmed no recall no warranty coverage. Quoted 2500 to fix No prior warning lights or messages. Multiple dash lights occurred suddenly and never went away.
Several complaints can be seen across many different Honda forums that indicate several years including 2018 - 2023 of the Honda Odyssey are affected by similar issues when the front multi-purpose camera fails. Many have reported extreme heat when physically inspecting the camera unit. The ZYNQ XA72030 chip manufacturer, AMD, has listed known issues with this particular chip overheating either due to inadequate cooling (this is a passively cooled chip), poor PCB layout, unstable or undersized power supply, all which can result in thermal shutdown. At startup my vehicle dash immediately lit up with several Warning indicating the disablement of multiple systems: LKAS, EBA, ACC, Collision Mitigation, Lane Departure, Automatic High-Beam. In my case, physical inspection revealed the camera outer shell to be extremely hot to the touch necessitating a rag to reduce risk of burn while handling. It's interesting to see that Honda has issues a recall for the back camera which is not tied to many or any other systems at all due to a faulty cable, yet the front facing camera which directly affects Lane Keep Assist, Emergency Brake Assist, Collision Mitigation, Lane Departure Assist, Adaptive Cruise Control, and Automatic High-Beam, has not received a recall despite the many complaints brought forth. It is clearly a defective component that affects many other systems which can lead to potential crashes under the right circumstances. I would urge Honda to issue a recall for all Odysseys experiencing multiple systems failure due to a defective multi-purpose camera.
I own a 2019 Honda Odyssey Elite with 39,000 miles on it. In January 2026, suddenly I had multiple warning lights on in my minivan related to an ADAS system failure. I replaced the car battery and later determined that the ADAS camera had failed in the car. In reading online, this is a very common issue with Hondas as the cameras are known to overheat and require replacement. Warning lights: Brake System Malfunction, Adaptive Cruise Control Problem, Collision Mitigation System Problem, Lane Keeping Assist Problem, Road Departure Mitigation System Problem, Auto High Beam Problem Before I was able to get it repaired, the van turned off suddenly in traffic twice while my wife was driving the car while also one of my children was inside, creating an unsafe condition that could have created an accident. Luckily my wife was able to get the car safely moved out of traffic and we stopped driving the car at that point. I wound up replacing the camera and and needing to get it recalibrated so that the car could be drivable. This resulted in the van not being operable for nearly a month. For a car that had 39,000 miles on it, this really should be something under a longer warranty as it could have created an unsafe driving condition for my family. Total cost to repair = $1634.22.
The monocular camera in the windshield failed and multiple warnings are present. It has been well known by multiple consumers the camera fails more often in the 2018 - 2020 Honda Odyssey.
2019 Honda Odyssey EX-L Trim Front ADAS Camera malfunctioned @ 43K mile. Lights all on, cannot use adaptive cruise control, all the safety function stop working include emergency auto braking.
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.
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.
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.
All the warning lights shows up in the dash and the problems are diferent like bad battery or front monocular camera and all the futures assistence stop working like automatic brake cruise control.. etc
Multiple system problems constantly on my dashboard. Has brand new spark plugs and battery and problem is still there.
Multipurpose Camera Unit/Millimeter Wave Radar Internal Electronic Failure diagnosed with U3000-49 error code in my 2019 Honda Odyssey. The problem has been confirmed by the Honda service center and reason stated is low heat resistance. Coat of repair is approx $2000 and this is purely due to low heat tolerance levels of the Honda component
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.
I was commuting home, about 30 minutes into the drive, all of the dashboard and radio went blank for a few seconds. It came back on and the break light, anit-collision, lane departure, lights were all flashing. It did this 2 more times in the over the next 5 minutes. I was concerned for my safety because I wasn't sure if my breaks and all the other things were working propoerly. I didn't know how fast I was going or if my car was going to stall on the highway. I see that a recall was issued by honda yesertday, not for my car model, but a similar issue (a software bug can cause the instrument panel and rear-view camera to go blank). It has not yet been inspected by a repair person. There wre not any warning lights prior to this happening.
Front camera failure in 2019 honda odyssey after only 5 years. Total system failure causing multiple warning lights and loss of full adas system
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.
Failure of camera unit leading to all safety systems requiring it becoming non operative. Well known issue and widely reported.
Front camera appears to have gone out in 2025. All safety features inoperable and constant flashing of warnings making it impossible to determine if anything is actually wrong. Collision mitigation failure, blind spot failure, transmission failure, brake system failure, blind spot. Those control etc. Honda has confirmed its issue with front camera.
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.
**Vehicle:** 2019 Honda Odyssey **Components Affected:** Forward Collision Avoidance, Lane Departure, Adaptive Cruise Control, Braking System, Exterior Lighting, Electrical System, Instrument Cluster **Complaint Summary:** Multiple safety systems on my 2019 Honda Odyssey have simultaneously failed, including LKAS, ACC, Collision Mitigation Braking System, Auto High-Beam Headlights, and other driver-assist features. The dashboard displays warnings for nearly every safety-related system, and the vehicle disables these features without warning. **Detailed Description of the Problem:** Whenever I start my vehicle, multiple error messages are displayed related to the Lane Keeping Assist System (LKAS), Adaptive Cruise Control (ACC), Collision Mitigation Braking System (CMBS), Road Departure Mitigation, Auto Headlights, and other safety features. These warnings appear together and persist even after restarting the vehicle. Apparently, this issue is widespread among 2018–2020 Honda Odyssey owners, with many reporting the same cluster of system failures. The problem appears to be related to a malfunction in the vehicle’s electrical system, sensors, or control modules. In my case, the failures occur without any external damage, weather event, or driver action that would explain the sudden loss of safety functionality. When these systems fail, the vehicle disables critical safety features such as automatic emergency braking, lane keeping, adaptive cruise control, and automatic headlights. This creates a significant safety risk, especially at highway speeds or in low‑visibility conditions. **Frequency:** The issue occurs whenever the vehicle is started, affecting my driving everyday.
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.
Improper seal on the seam (?) above let water leak into my power tailgate control module. It caused all the dash lights to sporadically rapidly flash, told me I have a transmission problem and my blind spot warning didn’t work right. Pulled out the tailgate module to find water in the module with a failed circuit board. Also wires leading into the module were wet
Sensor issue that is causing safety concerns with cruise control, lane keep assistance. Forward collision issue, etc.
I am submitting this complaint to report a serious and recurring safety issue with my Honda Odyssey involving the front monocular camera system. After stopping for fuel and restarting the vehicle, multiple warning messages and fault codes appeared on the dashboard simultaneously, including: -Collision Mitigation System Problem -Adaptive Cruise Control Problem -Lane Keep Assist Problem -Auto High Beam Problem These systems are all disabled due to a failure of the front monocular camera. This failure occurred without warning and immediately compromised several critical driver-assistance and safety features. Based on my research and discussions with other Honda Odyssey owners, this is a known and widespread issue. Honda is aware that the front monocular camera is prone to failure, and numerous owners have reported identical symptoms and error codes. Despite this, no recall has been issued. The required repair involves replacement and recalibration of the front camera and carries an estimated cost of approximately $1,500, which places a significant financial burden on owners for what appears to be a known defect. More importantly, the sudden loss of collision mitigation, lane assist, and adaptive cruise control presents a clear safety concern, especially when drivers rely on these systems during normal operation. Given the safety implications and the number of reported cases, I believe this issue warrants further investigation and a formal recall by Honda. Owners should not be responsible for the cost of repairing a known defect that disables critical safety systems. Thank you for your attention to this matter.
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