Electrical System Problems of Honda Odyssey - part 2

I was driving to work on April 7th, 2026 and parked the vehicle at my company parking lot. Prior to parking, I noticed unusual smell and then parked the vehicle. I parked the vehicle around 8. 10 am and I got the call from my facilities manager around 8. 30-8. 40 am that my car caught on fire and by that time I noticed houston fire department extinguishing the fire. There were no check engine sign and this vehicle is a brand new vehicle when I purchased. Though there is no recall associated with my VIN #, the fire issue is similar to recalls for 2019 Honda odysey. The recall numbers are 23v-751( engine fire recall) & 20v-066 ( electrical wiring fire recall).

See all problems of the 2019 Honda Odyssey 🔎.

2025 Honda Odyssey has been stalling due to auto idle stop (ais) failure to restart at traffic lights or stop signs. Engine fails to restart automatically and car needs to be manually restarted with push-button off/on switch. No apparent fix issued by Honda.

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I have a 2018 Odyssey exl I been getting messages from right sliding door problem and during the drive after 12 or 13 miles was getting sign was saying stop the vehicle and door sign is keep flushing saying right sliding door problem.

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When driving the ac will turn down by itself and when coming to a complete stop the car will put itself in park and the engine will shut off completely. The brake light and engine and battery light will come and the car will restart itself and stay in park or I will sometimes have to restart the car myself. The brake light started to flash on 4/16/2026. I purchased the car on 12/18/2025 to finance . The vehicle will slow down and jerk back and forth when driving at a normal speed .

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The power liftgate will not operate and the tailgate will not latch closed. The van was parked outside during a heavy rain, and when the vehicle was started afterward, a warning was displayed on the dash. The van has not been checked by the manufacturer. An inspection is available on request.

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Rear camera/center display going black. No alarming when backing up when screen is black. Previous recall 23v431000 did not fix problem.

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My van seems to struggle when traveling longer than 80 miles. I stopped on a trip at a rest stop and it would not restart. I had to get jumped and I purchased a new battery. I took my van into Honda and both batteries tested fine. No code is being produced though the dealership was able to replicate the issue once. After longer trips while using the air conditioner also have an issue with the auto/stop start not reengaging after being at a stop light. The dealership told me nothing is wrong a battery terminal was loose after they kept it for a week which I do not believe.

Power tailgate failure/dead battery from body leak. Currently power tailgate is not functioning.

The same power tail gate issue as experienced by many others on models 2018-2022. Water intrusion causing the power module fail for auto operation of powerlift tail gate.

Leaking from the roof and tail gate caused the electronic control modules in the sliding door and rear gate to fail.

See all problems of the 2021 Honda Odyssey 🔎.

Car leaks. Cargo bay fills with water. Possible mold issues. I am told this leaking causes damage to the control module for the tailgate. Our tailgate will close on us and has almost closed on our children. We have to be very careful when the children are around the tailgate because it will begin to close without warning.

This vehicle comes with idle stop. Many times especially at red light, the idle stop switches off the engine but then it does not restart automatically. We have to switch off the car and then restart it again. This takes some time. In the meantime, it is the panic with cars honking behind us.

Vehicle failed to restart after auto idle stop engaged while stopped in traffic. The engine shut off as expected but did not restart when releasing the brake pedal. A warning message appeared briefly on the dashboard but could not be fully read due to traffic conditions. The vehicle remained unresponsive until I shifted into park and manually restarted the engine. This has occurred intermittently. The vehicle was previously evaluated by a dealer for the same issue, and the battery was replaced at approximately 15,000 miles. The problem has continued to occur after battery replacement. This creates a safety concern due to inability to move the vehicle in active traffic.

At a stoplight vehicle turned off and gave a battery light and vehicle lost all power and placed vehicle in park. A warning message came up very quickly about something wrong with the auto start/stop system on display. Vehicle remained off until after opening door and pressing engine start stop button multiple times along with depressing and releasing brake pedal multiple times. This occurred the first time in late February 2026 then again on 3/21/26. Vehicle has 46,880 miles currently.

The radar is broken leaving all adas unusable in addition to no option to use cruise control.

I am reporting a recurring and dangerous failure of the infotainment system and electrical control in my vehicle. The following issues occur intermittently but frequently: safety camera failure: the center display screen often goes black, causing the backup camera and side-view cameras to fail completely. This occurs while the vehicle is in reverse, creating a significant blind-spot hazard and risk of collision. I specifically visited the dealership in early June 2025 to inquire about this issue—and I have video evidence to prove it—yet the electronic fault "magically disappeared" (an intermittent issue) when the vehicle was inspected on-site. Despite this, the dealership still charged me a $300 diagnostic fee. Total system freeze: the gps navigation, audio system, and all center console controls frequently stop responding or shut down entirely while driving, causing significant driver distraction. Power management defect: most critically, the infotainment system and audio often fail to shut off even after the engine is turned off and the vehicle is locked. This parasitic draw continues until the 12v battery is completely drained, leaving the vehicle stranded and potentially creating an electrical fire hazard. On 03/20/2026, the infotainment system failed to shut down after the engine was turned off, which completely drained the battery. I had to call aaa for roadside assistance to tow/jump-start the vehicle to the dealership. I have a video recording of the system staying powered on while the vehicle was off. Furthermore, I just replaced the 12v battery with a brand new one in February 2026, confirming that this is a parasitic draw caused by a vehicle defect and not a faulty battery. I am unable to upload videos here, but I reserve the right to present them.

Both power sliding doors are malfunctioning, with the left side being critical. The dashboard intermittently flashes "door open" and "left sliding door problem" warnings during travel, regardless of speed or road conditions (highway, low-speed, and cornering). A certified Honda technician (case #16203079) confirmed dtc b2037 is stored for the left sliding door ratchet switch. The diagnostic report explicitly states the rear latch is failed/stuck in the open position, resulting in a half-latched state that "can open while driving. " the right door also shows intermittent issues with the ratchet switch and pinch sensor. Despite this documented, life-threatening safety defect, american Honda has refused repair assistance. I have video evidence of the warnings flashing while in motion.

Multiple safety systems on my 2019 Honda Odyssey elite 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/ cameras, 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.

Tailgate door is not functioning. Tailgate problem message on dash. Cannot open door with remote nor manually.

Engine shutoff/idle stop failure: the vehicle fails to restart after the automatic idle stop engages in traffic, requiring a manual restart. Electrical system malfunctions: car dying at stoplights, loss of power, and, in some cases had to restart in "limp mode" where the vehicle is restricted to 1st gear,not very safe on major highways. Reported this to Honda during service on 3-16-26, they didn’t find anything? has happened 7 times since it was serviced.

Five days after getting back our car from the Honda dealership where they “fixed” the two recalls all warning lights came on and not turn off. Steering, breaking, accelerating all are difficult. There were no issues prior to the dealership “fixing” the recalls. The car was just at our mechanic for brakes and they check our engine, fluids etc every time. There were no prior issues.

Rear hatch power door issue indicated on dash display, and complete failure of powered door feature. Investigation finds many other drivers of this make/model/year have issues with faulty seals allowing water intrusion into circuitry in left rear panel where the power lift fat control unit box is, causing damage to the circuitry. Other drivers have described more widespread electrical issues, some even causing the gate to unlatch while the vehicle is in motion. Upon inspection of my personal vehicle, signs of water damage were found both in the base of the area covered by the panel and within the circuit box and panel itself, confirming these suspicions.

After being on idle on a stop light, when releasing the brake to go, warning on dash says "collision mitigation warning" when nothing hit the car and I'm there's enough distance with the car in front and behind. The severity has increased now, after being idle, when releasing the brake, it now completely shuts off, dash says "shift to park", and can't go, unless I push the ignition button. Took it 3x for the same errors on dash, Honda said the 1st time it was low battery, battery was running on low juice and didnt have power to come back from idle, they changed the battery. Now they say they need to replace the starter after few thou$and$. I see online this happening to others too. I fear the car behind me, may rear end me, because I can't go, green light is on, but I can't move as I'm re-starting the vehicle after being on idle. Honda says my VIN is not part of the bad batch. It's happening more frequently and Honda said they were able to replicate.

The power tailgate control unit (part #74970-thr-a12) failed on my 2023 Honda Odyssey at approximately 46,000 miles and 3 years of age. The tailgate stopped functioning entirely. Upon removing the interior rear trim panels to diagnose, I discovered the failure was caused by water intrusion into the rear body of the vehicle. Behind the interior panels I found: significant rust on interior sheet metal, green corrosion coating the power tailgate control unit, dried water stains showing pooled standing water that had evaporated over time, and clear evidence of repeated slow water exposure over an extended period — not a single incident. The vehicle has no rear windows that open and no exterior damage that would explain the water source. The symptoms and damage pattern match the class action dubrosky v. American Honda motor CO. , [xxx] , which alleges defective polyurethane rear body seam sealant in 2018-2021 Honda Odysseys allowing water to leak into the rear driver's side panel and destroy the power tailgate control module. My 2023 exhibits identical symptoms, raising the question whether the same defect extends to later model years. Safety risk: the class action documents that this defect has caused tailgates to open or close unexpectedly while the vehicle is in motion, fail to latch, short-circuit, and in some cases cause fires. Items in the cargo area can fall out during driving, creating road hazards for other vehicles. My tailgate failed completely; I consider myself fortunate it failed closed rather than opening in motion. The damaged components are available for inspection. The vehicle has been inspected and photographed by pohanka Honda of salisbury, MD, who confirmed the damage but denied warranty coverage. No independent inspection has occurred. Warnings prior to failure: none. No dashboard warning lamps, messages, or symptoms appeared before the tailgate stopped functioning. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Back up camera display went black and issued error. This error is sporadic. Please approve replacement.

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.

2018 Honda Odyssey rear tailgate problems, what was the issue? problem is because water is leaking from the roof rails onto the tailgate module, causing the power liftgate control unit to short circuit, leading to unintended opening/closing or complete failure. I checked every fuse and my tail gate still wont open! tailgate module failed due to leak on the roof rail. The "holes" are three very small spots that the weld didn't cover. . . . . . .

After stop at traffic light with air conditioning on, the auto idle stop system engaged. When the brake was released, the engine stalled, able to be restarted after 5-10s. Problem exactly matches nhsta investigation ea25004.

The vehicle unexpectedly shifts into park while driving. Each time this occurs, I have to turn off the car, use the “push to start” feature to restart it, and then shift back into drive. This issue has happened multiple times, creating a safety concern while on the road.

The car will shut off at stop lights and randomly not start back up when the light turns green, then it will take a few minutes to start back up using the push button, this only occurs with the automatic start stop feature of the car my wife drives the car with our two young children and being stuck in intersections randomly is not safe for anyone ,. We have told the dealer about the issue and they have failed to duplicate the issue and said nothing is wrong,.

When stopped, my 2025 Honda Odyssey often fails to restart after the auto-idle stop engages. The engine stops, and fails to restart, and lights flash on the screen. I have to then turn the car all the way off, and on again, a process that can take upwards of 15 seconds. The issue happens daily. It will happen on the highway. Additionally, the button to disable the auto-idle engine stop is unreliable and sometimes doesnt work.

Upon further investigation, lots of 2018 Honda Odysseys are experiencing the same problem I am. There is a leak coming in from the top of the van in the rear that causes water to leak through and overtime damages the control unit in the back. Damage to this causes my power lift gate to completely stop working, my passenger drive door to stop working, and a bunch of features like the front collision warning, the lane departure, sensors, fog lights, so on to fail and go on and off. I had problems here and there with it but it wasn’t until it rained 4 days straight that I made the connection with the leak and started trying to figure out the problem. I took it to the Honda dealership to get diagnosed and they confirmed this problem. We have not been in any accidents to cause body damage to the vehicle.

I own a 2019 Honda Odyssey with approximately 100,000 miles. The power tailgate began malfunctioning suddenly. The rear hatch repeatedly unlatches and beeps as if it is opening even while the vehicle is in motion. After inspection, the dealership stated the tailgate control module failed due to water intrusion into the rear hatch area. I was told this is a known issue affecting multiple model years of Honda Odyssey vehicles (2018–2021), but there is currently no recall. This malfunction creates a potential safety hazard because the tailgate may unlatch unexpectedly while driving and causes continuous warning alarms and electrical issues. Owners are being required to pay for repairs caused by what appears to be a design defect allowing water to damage the tailgate module. I am requesting that this issue be investigated for a potential safety recall.

The idle stop on the van will stall the vehicle. This has happened 3 separate times where the vehicle stops, then stalls when the engine tries to turn back on. This can be very dangerous, especially when trying to turn from an intersection and the vehicle stalls.

See all problems of the 2024 Honda Odyssey 🔎.

The contact owns a 2025 Honda Odyssey. The contact stated that while stopped at a traffic light, the vehicle unexpectedly shut off. An unknown flashing warning light was illuminated, and the vehicle was manually restarted. This failure occurred frequently. The dealer was not notified of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 30,000.