Warning Problems of Honda Odyssey - part 2

All warning lights came on for adaptive cruise control, automatic emergency braking, forward collision warning, lane departure warning, and lane keeping assistance. Based on my research, it seems the forward facing camera has failed. The vehicle only has 37,000 miles on it and it is only 5 years old.

See all problems of the 2020 Honda Odyssey 🔎.

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.

See all problems of the 2018 Honda Odyssey 🔎.

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.

The forward-facing camera and/or radar unit failed one morning while running errands, resulting in 5 separate adas system failures. With these safety features not working, our safety and the safety of others is at risk. We took it to our dealer and were told we would have to pay a diagnostic fee of $205, even though they clearly already knew what the problem was- based on the multiple complaints through NHTSA and various other forums and websites from Odyssey and other Honda model owners and across multiple years. The problem was confirmed by the dealer and they quoted us $2025 and we're still not sure if that includes just the camera and/or the radar unit, which is another $600 part. Other dealers have quoted only $1200 to fix the exact same thing, with others charging more than double that. The 5 separate warning messages scroll across our screen repeatedly and are very distracting as you're driving. With multiple electrical issues already in recall status by Honda, this is another one that they should be taking responsibility for and not dumping this defective electrical repair on their customers. Who's to say that we won't be in this exact same predicament 3 or 5 years from now if the part or parts aren't fixed! definitely expect more from Honda. . . Very disappointed and feel betrayed by the inferior parts they're passing on as quality products.

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 front camera is malfunctioning, affecting all of my safety sensors.

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.

See all problems of the 2019 Honda Odyssey 🔎.

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.

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.

I recently replaced a battery on the 2018 Honda Odyssey. When I turned the car on, the dashboard showed 6 issues: adaptive cruise control problem; lane keeping assist problem; collision mitigation system problem; road departure mitigation system problem; auto high beam problem; and the brake system light was on. I paid a mechanic to clear out the code and the was told that the front sensing camera needs to be replaced. Without a replacement, all these errors will continue to show up. I search online to find out if other people have had this issue because it was just too coincidental that a battery replacement broke the front camera. I found posts by many people who own the 2018 Honda Odyssey having similar or near identical issues that I have had. The cost to replace the camera and have it recalibrate it is going to cost $1,800. 00 as estimated by a local Honda dealer. The Honda dealer told me that they have seen this problem over and over again.

On random occasions all of the above warning lights come on. They will stay on for weeks at a time despite replacing the battery and following all reset protocol. It seems when weather is cooler, everything functions as it should and cam work fine for days and out of the blue will throw all the alerts again making lane assist, cruise control, and all departure assists not function. Because the system works sometimes and not others, the Honda dealership doesnt believe it is an issue with the camera or sensor specifically because it would never work properly. It isnt an obstruction issues as I make it a point to regularly clean the sensor area on the grill and on the window where the camera is. A strange thing I notice is it seems 5o work better on days that are foggy or raining where youd think there would be obstruction. Its just been a whole distraction while driving. I would be content at this point just to have those options not function ever but keep the orange blinking annoying lights off that decide to work randomly with no reason or rhyme.

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).

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.

The multipurpose camera unit failed in my 2020 Honda Odyssey. This camera is responsible for enabling multiple advanced driver-assistance systems, including the collision mitigation braking system (cmbs), lane keeping assist system (lkas), road departure mitigation system (rdm), adaptive cruise control, and auto high beams. The component has not been replaced yet and is available for inspection upon request. The failure of the camera disabled multiple critical safety systems while the vehicle was in operation. These systems are designed to prevent lane departures, collisions, and unintentional road exits, especially at higher speeds. With the systems offline, I was at increased risk of collision or lane departure, particularly on highways or in low visibility conditions. This malfunction removed key layers of protection that the vehicle is designed to provide. The issue was confirmed by a Honda dealership on August 8th 2025, which diagnosed the problem as a failed multipurpose camera unit. They acknowledged that this malfunction disables all related safety systems. The vehicle was inspected by a certified Honda dealership technician, but not by police, insurance, or the manufacturer directly at this time. Multiple dashboard warning messages appeared simultaneously one day when starting the vehicle, including: "collision mitigation system problem" "road departure mitigation system problem" "lane keeping assist problem" "adaptive cruise control problem" "auto high-beam problem" these messages first appeared on or around the end of June 2025, and the systems were disabled immediately upon the failure.

My Honda Odyssey, after a hot summer day showed error codes related to the front camera. The adaptive cruise control problem (acc), auto high-beam (a); road departure mitigation system, collision/braking mitigation system; lane keeping assist problem (lkas) now are non-functional. Various internet users complain of the same issues without a conclusive source for the problem. It is either related to battery voltage or front-camera failure (possible due to heat/sun exposure). The 2020 vehicle was purchased used from dealer in 2024 where the battery was stated to have been replaced/new. Further, my vehicle has the infotainment package (tv/dvd) which has also previously drawn down the battery even after the car was shut off (I. E. , the electronics and/air conditioning are drawing too much battery and causing low voltages that impact the camera-based sensors). Multiple internet users complain of parasitic battery draw, fuses, poor oem batteries, and faulty behaviors with the camera system.

If the car is standing in sun on a very hot day, upon starting the engine it will start beeping with all these errors blinking and disabling these controls. Once the engine runs for 15,20 minutes and the car cools down, the warnings disappear too.

See all problems of the 2025 Honda Odyssey 🔎.

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.

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.

Turned on the car the other day and several warnings displayed on the odometer. Adaptive cruise control problem lake keeping assist problem collision mitigation problem road departure mitigation system problem auto high-beam problem other than cruise controls not working, the car works fine. I took it to the dealer, and they said the camera module behind the rear view mirror needs to be replaced. Technician claimed that because my cruise control button was left on, it kept the camera running, and basically overheated the camera to a fault. He mentioned recommending to router owners that they only turn on the cruise control button when they plan to use it, and to leave it off if not. I asked if turning the cruise control button when not in use was referenced in the owner’s manual, but he was unsure. I would have to double check, but I don’t believe that warning is there.

Our Odyssey has had mounting concerns w/electrical system. These are safety issues. 10/20. Work done related to electrical system-rear camera having issues. Left/rt rear door wires were replaced due to recall. Software update completed. Gage control module software updated-know issue. 10/rear windshield wiper not functioning-electrical issue & pump malfunctioned. Idol stop was not properly working. The car would stall out at stoplights as lifting foot off the brake & attempting to accelerate. Battery was replaced at this time & the vehicle was only 3 years old-we were charged. Issues with our car are electrical related & are seeing many others with similar issues. 8/24-11/key fob batteries died. After batteries were changed, issues with the power windows began immediately. Windows would not going/up or down all the way and were sticking. Soon after they stopped working all together. Auto locks wouldn’t work & the gas tank latch had to manually open to fill the gas tank. Finally took the car in for diagnosis. Said the motor in the door was broken & needed to be replaced. We were not convinced that this was the real issue b/c the problem began immediately after the fob battery issue. Instead of new parts, the dealer glued pieces together & gave us a discounted price. This was & is a real safety concern especially knowing windows were altogether not functioning & we don't believe that it was properly addressed. 2/after snow/icy weather front passenger side windshield wiper dispenser/sprayer wasn’t working. Upon checking, discovered it had become dislodged. Adjusted the piece & reattached this piece into place. As soon as car was turned on ,right after reinserting the piece into place warning lights came on-all brake/lane mitigation lights. After diagnosis, said it was an issue with camera at windshield & the camera needed to be replaced. Odyssey groups state electrical issue are know and many w/2020 Odysseys. 5/25 issues are beginning again with idol stop.

Multipurpose camera is defective. The camera is available for inspection upon request. A number of safety features do not work when this camera is not operational, including forward collision warning and lane departure warning. Honda dealership performed a diagnostic and confirmed it needs to be replaced. No other parties have inspected the camera. There were no warning messages prior to the camera failing, only after it had failed. This appears to be a common issue affecting many owners of this vehicle.

I was driving the van and all this warnings came on my dashboard. Acc adaptive cruis control problem, lane keeping assist problem, collision mittigation problem. Road departure mittigation problem. All they come one after eachother on my dashboard. I did some research and a lot of vans 2019 have the sa e issues. My friend van same problem she payed 1900 to replace the camera. This is a safety issue and it cost a lot to replace. It cannot be deactivated. I hope it will be a recall issued for this model. I have 3 minivans Honda. I never had an issue with thjs brand . The new one is terrible. . . . Thank you.

The problem first appeared in may 2025 when multiple system failure lights illuminated simultaneously. After confirming the battery and alternator were in good condition, I took the van to Honda of cleveland (2701 s lee hwy, cleveland, TN 37311) for a diagnosis. Their service department confirmed that the adas front camera (36160-thr-a91) had failed, which disabled the following safety systems: adaptive cruise control, automatic emergency braking, forward collision warning, lane departure warning, and lane keeping assistance. I asked if this is a wear component (expected to need replacement over time) and was informed that it is not. The quoted cost to replace the camera and calibrate was approximately $1,400.

Windshield monocular camera has became faulty. No longer have adaptive cruise control, lane departure, forward collision braking. Looks like about a $1,500 expense to fix. Seems like a very common problem.

Ton of warning messages. On the Honda online forum you can find hundreds of people with the same problem.

Without any notable prior messages or symptoms prior to the failure, on [xxx] after dropping off the kids at school and then turning on my 2019 Honda Odyssey ex-l (28,170 miles), the "brake system" light was on and the following 5 dashboard warning lights/messages turned 1) adaptive cruise control problem, 2) lane keeping assist problem, 3) collision mitigation system problem, 4) road departure mitigation system problem, 5) auto high-beam problem. The advanced driver assistance systems no longer works, and it becomes unknown to the driver whether the "brake system" light is being triggered only by the collision mitigation system problem, or an additional problemch as the anti-lock brake system not working. While no accidents occurred, the warning lights add unneeded driver anxiety, which can contribute to a potential safety impact. The problem has been confirmed by the san leandro, CA Honda dealer to be error code u3000-49. Dealer diagnosed problem as "multipurpose camera / millimeter wave radar internal circuit failure" and recommended to replace the multipurpose camera and perform aiming. Dealer advised that safety features will not work. The diagnostic fee was $179. 10, and the repair fee was quoted as $2456. 55 the vehicle or component has not been inspected by the manufacturer, police, insurance representatives or others. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Multiple warning lights: 1. Acc- adaptive cruise control 2. Lkas- lane keeping assist problem 3. Collision mitigation system problem 4. Road departure mitigation system problem 5. Auto high beam problem safety issues: with almost all of these not working the risk of avoiding a possible accident is greatly increased. An independent service center read errors for the can. No prior warnings, they just came up. I have replaced the battery and the issues were not resolved. An inspection is possible.

It seems the front dash camera failed to operate which caused all safety systems that rely on it to fail.

Got my windshield replaced. Was recalibrated. Within 3 months, 5 dash lights come on. 1. Adaptive cruise control problem 2. Lane keep assist problem 3. Collision mitigation system problem 4. Road departure mitigation system problem 5. Auto high-beam problem and the brake system light is on. I was told it wasn’t the new windshield and that recalibration wouldn’t fix the problem. The code that won’t clear is u3000-49.

Forward multi purpose camera failed and cause the rest of the advance driver assist systems to malfunction.

The adaptive cruise control, lane keeping and road departure system randomly fails and does not work.

Front facing camera went out on a 2020 model. Several warning lights appear related to lane assist, front collision warnings, and automatic emergency braking. These safety features are important, and Honda should issue a recall. The camera is around $800 to replace, plus another $800-$1000 to install and calibrate. Car is only 5 years old, and there have been other camera/electrical related problems, and many recalls. Please hold Honda accountable to fix their declining reliability issues.

Out of nowhere I got a bunch of errors involving the addaptive cruise, lane keep assist, auto highbeams, collision avoidance, and the brake system light came on. The van has under 40k miles on it. From a quick search I can see that this is a very common issue.

Adas system failure. An audible alert would sound and the following problems would scroll across dash display: auto high-beam problem; adaptive cruise control problem; lane keeping assist problem; collision mitigation system problem; road departure mitigation system problem. Also, "brake system' illuminated in red near bottom of display. Diagnostic at Honda dealer indicated, "u3000-49 multipurpose camera unit internal electronic failure". To repair, the quote for the unit itself was $1201. 34 plus tax. Calibration was an additional $660. 00. I found the unit online at a better price and so purchased it and had the dealer install. My total cost for the unit and installation/calibration was $1. 496. 74. Even though it is a 2018 model I would have expected this camera unit to last much longer. It's an expensive part! my hope would be for Honda to issue an extended warranty and I'd be eligible for compensation on this repair. If needed I can provide paperwork. Please advise. Thank you.