Assist problems of the 2019 Honda Odyssey - part 1

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.

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.

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.

Something is wrong with the camera and causing all warnings to go off.

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.

My 2019 Honda Odyssey ex-l has had sporadic errors happen: adaptive cruise control problem, lane keeping assist problem, collision mitigation system problem, road departure mitigation system problem, blind spot info system problem. These errors have shown up before sporadically and the dealer, dch Honda of oxnard was notified April 27, 2023. They could not replicate and did not respond in writing that something was wrong. The errors went away on their own. 3 weeks ago, the errors showed up again, this time also including a transmission system problem warning. The car was taken to Honda in valencia and they ran a diagnostic and recommended the transmission be replaced or they would give us $2500 for the car. We opted to have a well reputed private transmission mechanic replace the transmission. After doing so the errors are still there. The transmission system problem error even showed up sporadically the very same day we picked the car up. There is no rhyme or reason to these errors other than perhaps a faulty windshield camera, which takes 5 minutes to replace but Honda wants to charge $2k. We also experienced the delayed shifting due to the poor 9 speed transmission and vcm design. It was quite scary to have a car full of children making a left turn on a busy road and not have the car kick into gear but rather slip. Installing a vcm tuner to bypass the computer shifting helped as well as not driving the car in econ. Honda knows they made a bad car and while Honda pilots and other models have had recalls related to the transmission, I am atill waiting for NHTSA to take action and include my lemon Odyssey as well. Replacing the transmission cost me over $7k and it may not have been necessary in the end if in fact these errors were related to the camera.

Front windshield camera failed and available for inspection if needed. All safety features tied to this camera are now disabled. Even basic cruise control is disabled. Problem has been check by a dealer with an estimated cost of $2600 to repair a simple camera module. Not inspected by police but was inspected by the manufactures dealer. I can get it inspected by the police if it helps. There are several warning lights that come up after starting the car. Even dinging when backing out of the driveway causing distractions. This is a known issue for this year Honda Odyssey van. There are lots of posts about it and how to try and fix it without the dealer charging you 10% of the cost of a 2025 model. For something designed for families this is not what I expected. This vehicles safety is impacted by the removal of these features.

When my car hit 40000 miles or so, I started getting all sorts of warning lights showing up when I turned my car on. Took my car in to Honda today, and they said upon checking it that the multifunction camera which is located behind the rear view mirror has stopped working. The car has 44,500 miles on it. It has been in no accidents. There seems to be no reason for such a part to just stop working (needing a $2500 repair to fix).

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.

The multipurpose camera has an internal failure at 105 thousand miles. This controls the automatic emergency braking, lane keep assist, adaptive cruise control, lane departure warning, and more. This safety features such as emergency braking, lane keep assist, and lane departure warning are important safety features. All of these features help drivers avoid collisions by acting to correct or avoid collisions or accidents faster or earlier than drivers can react. The Honda dealership service department has confirmed that the multipurpose camera had an internal failure, but did not provide a reason and there was no inciting incident during driving or ownership that caused this. The Honda dealership service department has been inspected and diagnosed that the multipurpose camera had an internal failure. No, there were no warning lamps, messages, or other symptoms of the problem prior to the failure. They only appeared after the failure, and the failure happened without warning. The failure first appeared on July 7th, 2025.

Warning for lane keeping assist, adaptive cruise control, auto high beam, collision mitigation, and road departure all populated at once. The functionality does not work, even regular cruise control without the adaptive feature. There have been many reports of this issue with fixes upwards of $3,000. Appears to be a faulty camera. This is a safety issue and should be addressed and recalled.

I had 5 warnings appeared in the dashboard : -adaptive cruise control problem -lane keeping assist problem -collision mitigation system problem -road departure mitigation system problem -auto high-beam problem and the amber brake system light came on permanently searched the problem on google and reddit found many Honda Odyssey owners having the same problem which is a safety issue some people took their vehicle to the dealership and have been told that the windshield camera is causing these warnings to appear because the camera is overheated by the sun, and the manufacturer did not make the camera well ventilated to dissipate heat caused by sun light.

5 warning shows up.

When I start the vehicle, I consistently get warnings for acc problem, lake keep assist problem, collision mitigation problem, road departure mitigation problem, and auto high beam problem. This occurs every time I have driven the vehicle for the past week. From cursory research, this issue commonly appears to be related to a failure of the camera module located next to the rearview mirror.

The brake system warning light is on. With this, it is showing 5 different issue messages when the car is running. I've taken to the dealer and they are saying there is an issue with the multipurpose front camera. My car is on 39,900 miles.

Warnings displayed: 1. Auto high-beam problem 2. Adaptive cruise control (acc) problem 3. Lane keeping assist system (lkas) problem 4. Collision mitigation system problem 5. Road departure mitigation system problem 6. Brake system warning (red brake light illuminated) dealer diagnostic: multipurpose camera malfunctioning. Costs $2218 to replace. This should be a manufacturer recall.

Front camera stopped working, which appears to be a common problem for Honda, and deactivated all safety features that rely on camera.

Took the van to the dealership to fix a recall for the fuel pump. A few days later, error messages popped up saying there are problems with the adaptive cruise control, collision mitigation system, lane keep assist system, and brake system, among others. I test drove it from arcadia to pasadena on both the freeway and the sidestreets without any problems. We took it back to the dealership who assessed it and told us that the multipurpose camera was bad. It would cost us $2100 to get it fixed. We refused. No one was hurt, however, the dealership told me that there is a safety risk to my family if I did not repair it. Attached is the invoice for the last visit during which the dealership gave us the estimate for replacing the multipurpose camera.

Upon starting the car, multiple alerts came on the dashboard reporting faults with multiple systems. There was no damage to the car, it had been parked safely and appropriately prior to starting. Dealership inspected the issue and reported the camera/sensor system in the windshield behind the rear view mirror is faulty. This faulty camera now causes multiple systems off line as the sensor is no longer reliable. This is a safety issue as this sensor assists with split second support to the driver to prevent collisions, leaving your lane or speed adjustment with cruise control.

8/10 times when turning on and driving the vehicle, an error pops up on the dash indicating the lkas and acc no longer work. Dealer found the code was u3000-49, they could not get it to clear. Sometimes the car will start without the problem, but then at some point through the drive it will occur and lkas and cruise control will no longer be avaliable.

The lkas and several other lights are on in the vehicle and no one has been able to provide any answers as to why. Nor can the problem be fixed. There is also a problem with the transmission. Upon acceleration there is a hesitation that the car will not engage.

Monocular camera failure. Diagnosed by Honda dealership. Safety risk because the adaptive cruise control, auto high beam, road departure mitigation system and collision mitigation system no longer work properly. The warning lamps are continuously on the car, reporting this problem as well.

Out of nowhere I received 5 warnings regarding adaptive cruise control, collusion mitigation, lane keep assistant, automatic high beam. . . Etc failure. Upon restarting the car, the warnings would clear itself on occasion but would reappear on following start up.

All the symbols related adas suddenly popped in my car with no rain or snow or any accidents. When I checked with Honda dealership, they said it caused due to software issue and nothing related hardware and it needed 2500$ for replacing the entire system. If it is software causing this issue why would customer had to pay for it, and it could be a recall. I noticed similar issue for all 2019 and above models.

Brought my 2019 odessey to the dealership shortly after I had the following error messages appeared on my dashboard: brake system, auto high-beam problem, collision mitigation system problem, lane keeping assist problem, road departure mitigation system problem, & adaptive cruise control problem. Sometimes these pop-up intermittently. Other codes I've seen twice since this issue started are transmission system problem and blind spot info system problem. The dealership mentioned that these error codes are most likely associated with the other codes mentioned above. Did a diagnostic at the dealership and they initially cleared all codes and u300-49 returned and they are recommending replacing the multi-purpose camara unit and they are charging $2,256. 95 for this to be done. This repair is costly and from what I understand is a common issue for odessey owners. In addition, since this little part seems responsible for upholding these safety features it seems ridiculous that we paid good money to have this vehicle, but our all these safety features seem to be on hold until we get this costly repair done. I personally don't feel 100% safe driving the vehicle. To me, it feels like a gamble to put my family and the public in danger by driving the vehicle because every time I turn on the vehicle the warning sounds beep and flash, I don't feel safe.

Adas system has failed. Out of the blue, multiple warning lights have came on at the same time. This failed system is a danger by taking away some important safety features of the vehicle. -collision mitigation system problem -auto high beam problem -road departure mitigation system problem -lane keeping assist problem -adaptive cruise control problem vehicle has been taken to local mechanic to check codes. Codes cleared yet returned immediately. Seems to be an issue with a multipurpose camera in the front.

I began have an issue with intermittent warnings on my vehicle a few months ago. They’d come and go, sometimes going away for a couple weeks. I took it to Honda they said it was the battery. After changing the battery it continues to intermittently show warnings. Collision mitigation problem, adaptive cruise control problem, lane assist problem. I took it to 3 mechanics and no one could figure it out. Finally I went back to safelite where I got my windshield replaced in September and when they hooked it up they could see that it was the multipurpose camera failure. Error code u3000 49. When the warnings are turned on all those safety features are obsolete. Upon further investigation via the internet I now see there’s hundreds of posts with this specific problem with their 2019 Honda Odyssey.

Lka; collision mitigation problem; auto high beam; road departure mitigation; adaptive cruise control dashboard has all of these lighting up. Dealer said it was a sensor issue. No accidents; well cared for vehicle just spontaneously started issuing these alerts each time the car starts and the duration of the drive. Due to all the warnings the driver isn’t able to see fuel range etc.

I took my van to the dealer and they told me that the sensor inside of the front mirror is faulty, causing the following lights to continue to cycle if the car is 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. I am unable to engage or disengage any of these systems, including when I am driving. This seems to be a major security hazard and I am aware of others that have experienced this with this exact year, make and model (across different packages) of Honda minivan. I just wanted to report this in case this becomes a major concern for other consumers.

The adaptive cruise control stopped working while it was on and we were driving. Also the lane keep assist went out at the same time. It appears to be an extremely common issue in this cars with the front sensing camera which is the issue we have.

5 emergency lights came on at the same time, we went to the Honda dealer and the problem is the front camera, they told us there, for the diagnosis it was $250 dollars and if we want to fix it it would be $1900, I think that Honda should cover that because it is a car with only 30,000 miles, it is a very expensive repair for a car that is not that old.