2022 Honda Odyssey electrical system problems

“The contact owns a 2022 Honda Odyssey. The contact stated that while coming to a stop, the vehicle unexpectedly stalled without warning, requiring a manual restart. On multiple occasions, the engine failed to crank initially, requiring several attempts before successfully restarting. The vehicle was taken to a dealer for diagnostic evaluation; however, the failure could not be replicated. The dealer replaced the battery, but the failure remained unresolved. The failure mileage was 105,000.”

“After a heavy rain, the rear tailgate stopped working- apparently the roof seals have cracked and water leaked into the rear part of the car, and destroyed the tailgate latch and control unit. When I was driving the car for service, the rear sensor kept beeping indicating that the tailgate was not latched properly- I was afraid it would open it, so I had to drive carefully to the dealer. Now, the dealer says it a known problem on the 22 odysseys that the seals crack and leak water into the car, but its not covered by any warranty, even though when I bought the car last year, it was a honda certified warranty. Now its a $2,630.00 job to repair this. The dealer said there was significant rust due to the leaking of the seals around the latch and controller unit. here isa link that says this problem actually goes back to 2018-2024 odysseys. [XXX] And I know it goes back as far as the 2008 model year- I had the 2008 odyssey and had the same roof seal water leak problem but the water was going into the seat belt areas. Something has to be done to stop this.”

“The entire Honda Sensing driver-assist safety suite has failures that shows on the dash all at the same time. All at once non of the safety features work which is extremely dangerous while driving. The component in question is the front sensor camera located behind the rear view mirror mounted on the front windshield. This sensor camera is the core optical component for the entire driver assist safety suite.”

“The engine fails to restart on its own after the Auto Idle Stop (auto start/stop) system shuts it off at a stop. When this occurs the vehicle is left without power and I must shift to Park and restart the engine manually with the ignition button. This has happened while I was stopped at an intersection in traffic, leaving the vehicle disabled in a live lane until I could restart it. This is a serious safety hazard — the vehicle cannot move when traffic begins to move, and it cannot be moved out of the path of cross traffic. Honda's service campaign remedy for this condition (PGM-FI software update) was performed on my vehicle in March 2025. The failure recurred after that repair and has continued for approximately nine months. On [XXX] I returned to the selling dealer (Bob Rohrman Honda, Lafayette, Indiana, RO #[XXX]) and was charged $170 for diagnosis. The technician road-tested the vehicle, performed a battery test, and reported that the system was operating correctly with "no problem found." No cause was identified and the condition was not corrected. The failure has continued to occur since that visit. My vehicle is within the scope of NHTSA Engineering…”

“I went to open back tailgate with key fob, no sound or anything - tailgate did not open. I tried inside vehicle buttons for back tailgate and would not respond - no sounds or anything. Nothing was obstructing the back gate on the outside or interior of vehicle to prevent it from opening. I found a video of a 2021 Odyssey having water leaks into the car from the sliding door and rusts the power module causing it to short. So, my husband opened the back fuse box and got into the back panel and removed and sure enough there is water damage to the module. It is about $400 to replace and it is only a Honda dealership part. This is a safety issue because there is no way to manually open back tailgate in case of an emergency. If water is slowly leaking and causing corrosion, this needs to be fixed by Honda.”

“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…”