Adaptive Cruise Control Problems of Honda Odyssey - part 1

For the last few days I turn on my car and get alert lights that I have problems with: the acc, lkas, collision mitigation, road departure mitigation systems and auto high beams. From online Honda forums I can see that many people have had these problems and it’s likely due to needing to have the windshield camera replaced. This is a 2020 model but I bought it new in 2021, so it is less than 5 years old and I’ve got 94k miles on it. Honda markets itself on its safety features, but nearly all of my safety features are not operating properly less than 5 years from the date of purchase, it’s a widespread issue, and Honda still has not issued a recall.

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The multipurpose camera in mounted underneath the rearview mirror stopped working. No apparent reason for the malfunction to shut the vehicle off while filling gas and then five different warning lights occurred, including issues with lane keep assist, adaptive, cruise control, automatic, breaking, and several other safety features no explanation for the failure when that vehicle was taken to the dealer and currently being charged $2500 for a replacement of the camera and labor associated with the repair. My belief is that the system is malfunctioning due to overheating, which is a design issue associated with the vehicle and isn’t something that I should be responsible for.

Internal failure of the multipurpose camera/millimeter wave radar unit with code u300-49; available for inspection upon request. All safety features linked to multipurpose camera such as adaptive cruise control, lane keep assist, auto high beam, collision mitigation system, and road departure mitigation system are no longer functional. This problem has been confirmed at the local Honda dealership in addition to the numerous forum posts made by like Honda Odyssey owners with this same reoccurring issue. There were no warning symptoms or messages prior to failure.

The camera sensor is malfunctioning. It is affecting the collision sensor and lane assist sensor. Also adaptive cruise control, road mitigation and auto high beams. My vehicle is scheduled for diagnostics with a dealer, but seeing the many, many cases and videos online of the same problem, I am certain of the problem since it has been confirmed by others who have already paid for this costly repair. My warning lamps come on every time I start my vehicle. This is a definite safety issue since the issue is with the safety sensors.

When turning on vehicle the attached picture’s warning lights show on dashboard. Unable to reset them. Vehicles collision sensor not engaged when driving. Road departure will not activate when vehicle drifts of interstate lanes. Cruise control will not work at all. Brake system light will not reset even when brakes and fluids are good. With all these issues, vehicle safety devices don’t provide any safety. These could result in bodily injury and even death.

Multipurpose camera behind the front windshield was inspected by Honda dealership. They were able to verify it had a fault and needed to be replaced at a cost of around $1700. This camera controls many of the safety features this van advertises such as the the lane keep assist and collision mitigation. While researching online, I was able to find multiple owners of the 2018-2019 Honda Odyssey that have had this same issue. Ebay has recently sold 3 of these cameras that have been salvaged from donors. This is an ongoing issue that Honda has not rectified. I believe this should absolutely be recalled.

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Unknown, though others who have reported this problem are saying the front camera and it's calibration are at fault. Currently, 5 systems (3 reported + 2 more) are under warning on my vehicle due to this unknown issue and the dealership wants a ridiculous amount of money to fix even though it appears to be very common and frequent as these vehicles get more and more miles on them.

The camera assembly monocular (part 36160-thr-a81) is shorted out causing multiple safety system failures from collision warning, lane departure, emergency braking, etc. Confirmed by local mechanic and then Honda dealer (merrillville, in). I still have the part, not yet replaced. Quoted $2k to replace. While driving multiple warning lamps went off and cruise control disengaged. No signs of issues prior to this occurrence. Now none of the safety features related to the adas system work.

See all problems of the 2019 Honda Odyssey 🔎.

The windshield-mounted front camera assembly (part number 36160?thr?a81) that powers lkas, acc, collision mitigation, auto high beam, and other safety systems has failed on my 2018 Honda Odyssey. When the camera fails, multiple critical safety systems become disabled at once, posing a significant risk to driver and road safety. " supporting evidence from other owners: Honda Odyssey owner posted in a parts-related forum: > “the Honda garage wants $1. 5k to replace the front camera, but I’m wondering why it catastrophically failed after 3. 5 years and 30,000 miles!” a documented complaint filed with NHTSA highlights a very similar situation: > “all Honda sensing technology is not working… acc, lkas, collision mitigation, auto high beam… many warning lights appear on the dash… diagnostics… indicated the issue may be related to a manufacturer defect… dealership… said the monocular camera was defective… the contact… replaced the defective monocular camera, … once the repair occurred, all of the messages and lights… cleared and all of the safety systems… are now working correctly. ” costs: owners have reported paying approximately $750 for the camera part and another $500 for calibration, totaling around $1,250. We have even been quoted $2,500 to replace the front camera. Safety risk: the failure disables multiple driver-assistive safety systems simultaneously, increasing risk of collision — especially since these systems (acc, lkas, collision mitigation) are intended to help prevent accidents. Conclusion / call for action: given the frequency of similar reports, recurring nature of the front camera failure (36160?thr?a81) in 2018–2019 Odyssey models, the high cost of repair, and the safety-critical systems that fail when this component fails, I believe this qualifies as a design or manufacturing defect. I respectfully request that NHTSA investigate this issue and consider issuing a recall for affected vehicles.

For the past couple of weeks, every time I drive the car, I get a number of error messages regarding problems with the advanced driver assistance features. These include: "adaptive cruise control problem", "collision mitigation system problem", lane keeping assist problem", "road departure mitigation system problem", and "auto high-beam problem". A diagnostic check showed error u3000-49, namely "control module internal electronic failure". I took it to a shop, they ran diagnostics and told me I needed to replace the multifunction camera in the windshield. It seems to be a common problem and is very expensive to fix, at more than $2000.

I in August 2025, I experienced a sudden and complete failure of the forward-facing windshield camera in my 2018 Honda Odyssey, which disabled multiple safety-critical systems. After having new tires installed at discount tire in preparation for a road trip, I started my vehicle and was immediately confronted with multiple dashboard warnings, including: •“road mitigation system problem” •“auto high-beam problem” •“adaptive cruise control problem” •“lane keeping assist problem” •“brake system” I took the vehicle to a Honda dealership. They diagnosed dtc u3000:49 — internal failure with multipurpose camera unit and informed me the only repair option is to replace the camera and perform camera aiming. The quoted repair cost is approximately $2,000. The dealer explained that this failure is “common in hot climates. ” if true, this represents a serious design flaw. The Odyssey was marketed as a family vehicle equipped with advanced safety systems, yet a single component failure suddenly disables nearly every major driver-assist safety feature. This is a serious safety defect for several reasons: 1. Safety systems suddenly fail without warning. One moment the systems are working, and the next they are completely disabled. A driver relying on lane keeping, collision mitigation, or adaptive cruise control would be placed at immediate risk. 2. Known widespread issue. The dealer admitted this happens in hot climates, suggesting Honda is aware of the problem but has not addressed it. 3. Unreasonable repair cost. A vital safety component should not have a built-in failure mode tied to environmental conditions, forcing owners to pay thousands out of pocket for safety-critical repairs. 4. Loss of federally encouraged safety features. Forward collision mitigation and lane departure warning systems are strongly promoted by NHTSA itself. Their failure removes protections drivers expect when purchasing the vehicle. This issue appears to be a common defect in Honda Odyssey vehicle.

5 major safety systems are automatically disabled and on further troubleshooting by the dealer, all these issues are pointing to a faulty front collision avoidance camera. The cost to replace and recalibrate the camera is upwards of $2400. This is absolutely ridiculous and seems like a safety recall issue.

All of the warning lights associated with advanced safety features came on on the way back from a visit to local store. When checking the codes there is a the u3000-49 code indicating an issue with the mono camera or radar unit. These warnings do not allow for the use of any of the safety features affected. The code cannot be cleared from the system either.

In our 2018 Honda Odyssey ex-l, a few weeks ago 5 different warning lights started coming on when the vehicle was started and continued while the car was driven. Lane assist, collision warning, auto high beams, braking system and adaptive cruise control. Just yesterday the rear hatch started to malfunction; currently the rear hatch can be opened and closed manually but the power lift does not function and now is the 6th warning on the driving display. The car was taken to a Honda dealership for diagnosis, and after paying $99 for the diagnosis of the issues, several other diagnosis fees would be required to get to the root of the issue which the tech states is most likely a control module malfunction due to a water leak. The fix would then be finding and fixing the leak, then replacing the module and wrapping the module in plastic to prevent future issues. Then more diagnosis fees to find and correct the other issues which could include replacing the multipurpose camera. -if a selling point of the driver assist, collision warning and automatic braking are safety improvements, by default if the system is faulty then ours and others safety is at an increased risk. -the vehicle has been inspected by a dealer -before a few weeks ago no warning lamps, messages or other symptoms were present. All of the symptoms have been rather sudden. We have been getting rain almost daily for the past few weeks.

While driving, all at once several messages displayed, all of which are related to forward facing camera. Adaptive cruise control problem, collision mitigation system problem, road departure mitigation system problem, auto high beam disabled along with the brake system light turning on when I researched the internet, there are alot a people report this problem with the Honda forward facing camera witch supports the systems listed this failures. Talking to friends and neighbors they have had the same issues, it is about a $2000 fix to replace and recalibrate the camera link to user forum [xxx] most of the reported issues including mine are related to heat, the camera is in an enclosure located at the top center of the windshield. We just had heat indexes above 100 degrees. The camera is always hot to the touch. I also had this issue in the past put happened whole under warranty. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

All Honda sensing technology is not working and brake system indicator is on. Acc, lkas, collision mitigation, auto high beam, road departure. I read online that a lot of Honda Odyssey owners are experiencing same problem. It could be the front camera sensor. I have always had electrical problems with car. There crackling sounds when the radio or music is playing on the stereos.

The sensors in the rear view camera and the grille are malfunctioning causing my van to throw error messages for the adaptive cruise control, lane assist, automatic high beam and brake light to stay on. Theres a risk of accidents happening if the van doesnt notify the driver of lane departure at the right time.

The front multipurpose camera has failed “due to internal failure” according to the service tech at local Honda dealer. The camera functions - lane keeping assist, adaptive cruise control, front collision warning, and auto high beam lights, have not functioned for the past month. The windshield was replaced more than a year ago and no other incidents caused the failure, so it seems the camera itself is the issue. My van only has 63,868 miles on it.

The multipurpose camera that sits behind the windshield has completely failed, deactivating many automated safety features. The dealer quoted $2700. 00 to replace.

After two months of sitting outside in the arizona sun, the transmission was replaced on my 2019 Honda Odyssey. A day after picking it up all of the sensors came on. I have been informed that it’s an internal failure with the adas camera that’s housed in the windshield. After a brief web search, this seems to be a common issue related to electrical issues with the car. Since the electrical was connected and disconnected during the transmission replacement begs to reason that there was something faulty about this camera that didn’t make its way through the reset.

The adaptive cruise control, collision warning, lane keep assist and other safety features have stopped working as indicated by errors displayed on dashboard. Suspect front camera is malfunctioning but has not been confirmed by independent service center. At first, this seemed to be an intermittent issue, but now the error messages appear every time the car is used.

With no external cause the multifunction camera/radar stopped working at ~59000 miles almost immediately after we purchased it (used). Problem may have been disguised by dealer and occurred earlier. Oly fix is a $2000+ replacement. Automatic braking, cruise, lane keeping, collision alerts all disabled.

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.

The adas front windshield camera failed on our 2020 Honda Odyssey. This vehicle is too new to have a failure like this and this is a very common issue that I have seen across all Honda Odysseys of same generation. Honda needs to be held accountable.

Brake system light, and other warning lights including adaptive cruise control, lane keeping assist, collision mitigation, road departure warning, and auto high beams: a common issue from internet which likely be caused by the camera/sensor issue (near the rearview mirror).

The front camera failed so there were 5 warnings all together: collision mitigation system problem, lane keeping assist problem, adaptive cruise control problem, auto high-beam problem, road departure mitigation system problem + brake system warning. They claimed the bad battery, bad wheel alignment but they were not an issue. The front camera was failed, and it costs $2,408 after their discount coupon. Same thing happened to my 2019 Honda accord hybrid. I googled it and found a lot of Honda vehicles share same problem. All the malfunctioning come from the failed front camera and it could be very dangerous if it happened during driving. This is a serious safety issue and all Honda's fault. They provided the problematic part. I never heard the similar problems happened to other brands such as Toyota, chevy, Hyundai, and more. All happened to Honda car. They provided the poor quality front camera and they charging fortune to replace it. That front camera costs more than 10% of my current car value. It does not make sense. I strongly claim Honda should recall their front cameras and reimburse all the expense we already paid. Thank you very much.

While driving on the interstate (60-70 mph) in very light traffic (2 cars in view), there was a beep from the consol and the following errors flashed: adaptive cruise control, forward collision warning, lane departure warning, lane keeping assistance warning. At the same time as the beep the car felt like the breaks were being slammed on for 2 second. There was no car within 30 feet of us. And we went from ~70 mph to 40. This startled us. Ever sense then the errors would randomly come on and the vehicle will break suddenly, leading to very unsafe moments.

Adaptive cruise control unexpectedly disengages. This has happened dozens of times, consistently every time I use the adaptive cruise control on the highway. My speed drops from the set speed (for example, 75 mph) down to 55 or 60 mph, at which point I realize it’s not going to come back on. This is extremely dangerous on the highway, and puts me at risk of being rear-ended by vehicles traveling at high speed.

See all problems of the 2022 Honda Odyssey 🔎.

We get a warning light saying "adaptive cruise control system problem". Van has 4200 miles and it happens during hot days, usually at lunch time. I took it to dealer "Honda cars of rock hill, SC" but they told me there is no code showing up in the van. I emailed Honda America with video but so far no response. The system just goes crazy, beeping and the cruise control is no responsive to cancel button or anything. We are not even using the adaptive cruise control when this happens. After you drive for a while, it goes away, like nothing happened. But when another hot summer day comes, around lunch time, it goes. . . It does it pretty much during high temps. Never in the evening or night time. Here is link to youtube video I sent to Honda: [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

All adas systems have failed including the abs. The safety camera has failed.

Collision mitigation braking system (cmbs) my 2019 Honda Odyssey slammed on the brakes while traveling 70+ mph on a clear freeway. There was no warning and nothing in the road. I have also had issues with the braking warning light flashing for no reason while traveling down the roadway. I called the Honda dealership and inquired about the braking issues and was told unfortunately it can happen, especially if I drive on windy roads.

The front sensor has malfunctioned and all adas features are now disabled. There is no damage to the vehicle and was mentioned that this is a common issue yet no recall has been instituted yet.

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.

Warning lights for collision avoidance, adaptive cruise control, and several additional safety features went on without any triggering incident. Brought to the dealership, where diagnosis is dtc u3000-49 multipurpose camera unit/millimeter wave radar internal electronic failure. Technician advised that this failure often happens after a few years for no apparent reason. Repair is upwards of $4000. Without repair, none of these safety functions operate.