Electrical System Problems of Honda Odyssey - part 2

My vehicle has been failing to restart at stoplights after the auto start/shutoff turns off the vehicle. Instances where it does start, the starter frequently struggles to kick the engine over and when it does fire the vehicle jerks forward before driving.

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The contact owns a 2012 Honda Odyssey. The contact stated that while the vehicle was parked or while driving at undisclosed speeds, the clock on the vehicle was flashing, causing a distraction to the driver while driving. The contact stated that the flashing of the clock was controlled by satellite gps, and the system could not be reset. The dealer was contacted. The failure mileage was approximately 180,000.

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While my 2026 Honda Odyssey was parked and stationary, I operated the driver-side power sliding door normally. The door began opening but became stuck. When I activated the power sliding door again, there was a sudden mechanical failure involving the sliding-door mechanism. The sliding-door rail was severely damaged/deformed, the mechanism appeared to disengage from its normal track/rail path, and the fixed rear quarter/third-row side window shattered. Exterior molding covering the rail was also dislodged and fell to the ground. There was no collision, accident, external impact, obstruction, or other outside force involved. The failure occurred during normal intended use of the power sliding door. Fortunately, my three children had already exited the vehicle. The shattered glass is directly adjacent to a passenger seating position normally occupied by my children, creating a serious risk of injury had a passenger been seated there. There were no warning lights, messages, or known prior symptoms before the door became stuck. The vehicle has not yet been inspected by Honda or a dealer. It is currently parked at my residence and is available for inspection. I have extensive photographs taken immediately after the incident documenting the damaged rail, shattered glass, displaced molding, and debris. After the incident, because I was approximately three hours from home with my three children, I was able to carefully reposition the door enough to close and secure it, temporarily cover the shattered window, and drive home. The affected sliding door has remained closed and locked since, and I am no longer operating the vehicle pending inspection.

The vehicle experiences a sudden and complete engine stall while at a complete stop in traffic (such as a red light) due to a failure of the auto idle stop (ais) system. The engine shuts down smoothly as intended by the fuel-saving feature, but fails to restart when the brake pedal is released or the accelerator is pressed. The vehicle drops into a total shutdown state, requiring the driver to fully shift into park, switch the ignition completely off, and manually press the start button to restart the engine. No warning lights, error codes, or dashboard messages appear before, during, or after the failure. This creates a severe safety hazard by leaving the vehicle unexpectedly stranded and unresponsive in active intersections.

The idle restart function causes the van to shut off completely when at stop lights in heavy traffic. It does not immediately restart and we have to sit in traffic while folk are honking at us to go. It doesn’t do this every time, but has happened 3 times in the last 3 months.

Mileage: 121000 when stopped and the auto idle initiated, we have had numerous incidents where the van has shutoff and required a restart. More recently, when the auto idle initiates, the entire engine turns off and the van has no power(car won't restart, can't get the car into neutral, sliding doors and tailgate won't open). I would then need to jump start the car with my portable battery. This has occurred 4 times thus far. Honda dealership had recharged the battery but it still died and required a start. Currently in the shop and my 120k extended warranty just ran out. Very disappointing.

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I am reporting a serious electrical shock/electrocution hazard involving the factory-installed 115v ac power inverter outlet in my 2016 Honda Odyssey. While the vehicle was in motion, my [xxx] son was able, without tools, to pull the ac outlet assembly completely out of the interior panel. He was then able to detach the molded electrical connector/plug from the back of the outlet, exposing the electrical terminals/conductors. The inverter/outlet was powered at the time, meaning my [xxx] had direct physical access to energized electrical components. He was about to touch the exposed terminals when his sibling saw what he was doing and stopped him. This prevented potential electrical contact and injury. I immediately stopped the vehicle, turned off the power, moved my child away from the area, and removed the applicable fuse to ensure the circuit was DE-energized before securing/reassembling the connector and outlet. No injury occurred, but this was a serious near-miss. A [xxx] passenger was able to remove a factory ac electrical outlet and expose energized electrical terminals without tools or adult-level disassembly. The outlet's mounting/retention and connector design did not prevent a young child from accessing energized conductors within the passenger compartment. This creates a potential electrical shock, burn, electrocution, and electrical-short hazard, including the possibility of a child inserting a finger or conductive object into the exposed area. I request that NHTSA investigate the outlet assembly, retention method, connector, and protection from access to energized components in the 2016 Honda Odyssey, and determine whether other vehicles using the same components are affected. This design should not permit a young child to gain tool-free access to energized electrical terminals. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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My 2025 Honda Odyssey shut off in auto idle stop while at a busy intersection. The car was unresponsive and would not engage the motor. After five minutes of trying to turn the car off and on, it eventually restarted and the motor came back to life. This issue put me at great risk of bodily harm. Given the fact the car was unresponsive in such a surprising way, I was very lucky not to have cars crash into me from behind as they few by for the 5 minutes I was stranded. This is the first instance and has not been reproduced as I am too worried to drive the car now. No inspection of the vehicle has been completed as this incident just occurred. No waring light prior to the incident, but the battery warring light did come on while the car shut off and unresponsive.

Safety complaint – 2019 Honda Odyssey elite front camera failure I own a 2019 Honda Odyssey elite with approximately 60,000 miles. The front windshield camera used by the Honda sensing system failed. When the camera failed, the vehicle displayed approximately 11 warning messages/errors involving multiple safety-related systems, including the brake system, vsa, eps, electric parking brake, brake hold, hill start assist, and Honda sensing features such as acc, lkas, and cmbs. This was concerning because one camera failure caused multiple safety systems to become unavailable or display warning messages. The vehicle’s driver-assistance and safety functions were significantly affected. I took the vehicle to a Honda dealer, and the dealer diagnosed the front Honda sensing camera as defective and replaced it. The total cost was approximately $2,600, including the camera, parts, labor, and calibration. I believe this is an unusually expensive failure for a critical safety component, especially on a vehicle with only approximately 60,000 miles. The front camera is not a normal wear item and is essential to several Honda safety and driver-assistance systems. I am also concerned that similar Honda owners have reported failures involving Honda sensing cameras. I would like NHTSA to investigate whether there is a recurring or widespread defect involving the front Honda sensing camera on Honda Odyssey vehicles, particularly model years 2018–2020. I respectfully request that NHTSA review complaints and repair records related to this issue and determine whether further investigation or a safety recall is warranted. I am submitting this complaint because I believe owners should not have to pay approximately $2,600 to repair a potentially recurring defect in a critical safety component.

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The contact owns a 2018 Honda Odyssey. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed, but the vehicle failed to accelerate, requiring the contact to forcefully depress the accelerator pedal to move the vehicle. The contact stated that multiple warning lights unexpectedly illuminated, including the road departure mitigation system, collision mitigation braking system, and lane departure warning system warning lights, and all related safety features failed to operate. The vehicle was not diagnosed or repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 105,000.

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Vehicle was using an off ramp and shutdown in the middle of a lane. It was 10:00pm and all systems were shutdown, including lights. Vehicle refused to restart and could not be placed in neutral, the vehicle could not be removed from the interstate off ramp. This issue has been brought to the attention of Honda, the started assembly was replaced on March 5, 2026. This vehicle has been delivered to Honda for similar electrical/starter issues 4 times since October 27, 2025. The first report was filed with Honda on October 27, 2025 with all lights on dashboard lit when vehicle was active. Had to wait until a tow truck arrived before vehicle could be safely removed from the scene.

My 2024 Honda Odyssey elite has had two recent incidents of car going into idle and won't start up. The more serious one happened while I was stopped waiting to make a left turn. The auto idle stop system shut the engine off when I was waiting on. Y left turn engine did not restart. I was stuck in the roadway for about two minutes before I was able to start the vehicle again. The red battery warning light was on while the engine would not restart. A few days prior during a trip from [xxx] to [xxx] the vehicle also would not start after I had been sitting with the engine off and accessories running at a gas station. After turning off the a/c fan, rear entertainment system, and unplugging my phone, the vehicle eventually started. I took the vehicle to a Honda dealer (Honda of [xxx]) they inspected it but said they could not reproduce the problem, so no repair was made. And they refuse to use my warranty to fix it. The vehicle is available for further inspection. My main safety concern is that the auto idle stop system can shut the engine off in traffic and then fail to restart, leaving the vehicle disabled in an intersection like what happened to me. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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It was approximately 8:45 pm at night. I was sitting in my 2025 Honda Odyssey stopped at a red light with my foot on the brake. There were no other cars in front or behind me. It was a long light so the car engine stopped as it usually does due to its auto start-stop system to conserve gas (although electricity in the car remained on). However, when the light turned green, I took my foot off the brake and pressed the accelerator. At that moment, the entire car shut off unexpectedly, including all lights, electricity, etc. It appeared to be a "normal" shutdown as the "check rear passenger seats" indicator flashed before the car turned off (this is expected in a normal shutdown since we have a carseat in the rear seat). Fearful of being rear-ended at night, I quickly pressed the brake and hit the power button (the typical process for turning the car on). Thankfully this worked and the car restarted as normal. It took about 15 seconds for the car to power on such that I could shift the car into drive and begin driving as normal. After that I proceeded to drive a further 20 minutes on highway + rural roads + stop lights and nothing else happened. - I do not know which component failed, but I suspect it was the starter as the car failed to restart after the auto-start stop system was engaged. - my safety was put at risk as the car was at a traffic light and turned off when I attempted to drive it when the light turned green. This meant my car was sitting in the dark with no lights on, at night, for about 15-30 seconds as I restarted it at a green light. I could have easily been rear ended at high speeds as people would likely not see my car at night trying to go through the green light. - the problem has not been reproduced by a dealer/service center. - it has not been inspected. - no messages prior to the failure.

The vehicle experiences sudden, intermittent engine stalling while idling (either when coming to a stop at traffic lights or while idling in traffic). The engine shuts down completely and fails to automatically restart via the auto idle-stop feature, forcing the driver to manually cycle the ignition or shift to park to restart. This has happened multiple times since I bought the car at stevens creek Honda in September 2025 and have taken it to get it service at livermore Honda in November 2025 and again in August 2026. The dealer has been notified but the defect remains unresolved, presenting an immediate safety risk of being rear-ended in active traffic due to sudden loss of propulsion.

A warning for power tailgate problem keeps coming up. It tried to open multiple times while driving, beeping at us. It wouldn’t open with the buttons at all. We had to manually open and close it. This makes the second time it’s done it. And it always has to do when it rains. Honda knows this is a well known issue with their Odyssey’s and it needs recalled. The dealership wants us to pay for a well known issue. We had a friend with the same year Odyssey and the same thing happened but their tailgate completely opened a few times while driving.

Engine failed to restart during auto idle stop event. Nearly created an accident.

My name is [xxx], we bought a brand new 2019 Honda Odyssey elite, we have had problems with this vehicle since day one. They have lied and covered up the issues with this vehicle starting with the infotainment center, transmission slippage, fuel pump and the front camera has been overheating giving us the message that it is overheating and all the lights come on. They have stalled us on these issues and now the extended warranty is up and we want something done about this. We have babied this vehicle the entire time since new and it seems like one problem after another, at this point we are very disappointed from the way we are being treated from Honda. The latest is the front sensor on the front mirror that pops up all the lights on the dash, no one seems to be able to duplicate the problem, now they are on all the time and conveniently the extra extended warranty we bought have since expired, there was a lot of recalls on this vehicle and no one ever seems to be able to send us the recall letters. We really thin the mirror sensor and the transmission are definitely safety issues especially when the mirror shuts all the safety off. The transmission shifts hard at times and we pray that Honda will step up to the plate and do the right thing and fix the other recall issues on this same vehicle as well. We have other Honda vehicles that we have not had any issues with, we just can't understand why we are being treated in this manner, we just want the vehicle fixed. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My vehicle electrical system has been acting up since I got vehicle and I don't know where to take vehicle for recent recalls to fix it.

Component that failed & availability: the vehicle's primary electrical architecture and data communications network (can bus) failed during a safety recall service for the srs ecu and rearview camera. After attempting to complete the recall work, the vehicle is no longer able to start. Safety risk: the manufacturer's federally mandated safety recall remedy compromised the vehicle's critical safety and control infrastructure. This rendered a previously reliable family vehicle entirely inoperable, destroying its ability to communicate, start, or turn on. It poses a systemic safety risk if the corporate recall procedure itself causes severe electronic failures in consumer vehicles. Reproduction & dealer confirmation: yes. The failure was induced directly by williams Honda ([xxx]) during service on Thursday, xxx. The dealership's service manager explicitly confirmed to me that their technicians compromised the electrical architecture while performing the srs ecu and rearview camera recall work. The vehicle has remained dead at their facility ever since. Inspection by others: the vehicle has been actively inspected by dealership technicians in coordination with Honda engineering headquarters. It has not been inspected by police or insurance representatives, as no crash occurred. I have requested an inspection by a Honda corporate field technical specialist (fts). Warning lamps & prior symptoms:none. Prior to this appointment, the vehicle was in perfect electrical and mechanical working order. There were absolutely no warning lamps, messages, or symptoms of any starting or electrical problems. The vehicle had just safely completed a seven-hour road trip immediately prior to being dropped off for the recall work. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The vehicle experienced multiple sudden engine stalls while driving in traffic. Specifically, the engine shut off unexpectedly and the transmission automatically shifted into park (p) while on the road, leaving the vehicle immobilized and unable to be manually shifted out of p. Restarting the vehicle was extremely difficult, which created a severe safety hazard and nearly caused a rear-end collision. The vehicle was inspected and confirmed by an authorized Honda dealer that the starter failed. The starter has since been replaced. The failed component is available for inspection upon request.

I am filing a safety complaint regarding a recurring, severe defect involving the 2025 Honda Odyssey's starter motor and the factory-installed auto idle-stop (idle-stop) system. While driving, the vehicle's auto idle-stop system engaged as designed when coming to a complete stop in traffic. However, when trying to accelerate, the vehicle failed to restart automatically. The engine completely stalled out on an active roadway. Attempts to manually override the system and restart the vehicle using the ignition button failed completely, resulting in an immediate and dangerous loss of propulsion. This defect presents a severe and immediate traffic hazard, as it unexpectedly leaves the vehicle completely disabled and stranded in active lanes of traffic. It strips the driver of the ability to clear the roadway to safety, significantly increasing the risk of a rear-end collision. Multiple occupants, including passengers in the rear seats, were exposed to extreme danger due to this sudden propulsion failure. Despite bringing the vehicle to an authorized Honda dealership, the manufacturer has failed to provide a permanent safety remedy. Also Honda corporate has deny warranty replacement for the starter that’s causing the issue.

I was at the red light and the car wouldn't come out of idle. The battery light came on and the I tried to turn the car off and it just keeps cycling. I had to open the door for the car to cut off and then restart the car. This is the 3rd time this has happened and almost resulted in me and my children being hit.

While stopped at a red light or intersection, the vehicle's auto idle stop feature engages and shuts off the engine as designed. However, on multiple occasions, the engine has failed to automatically restart when the brake pedal is released. The vehicle remains stalled and unresponsive in the middle of the intersection or traffic lane, creating a safety risk to myself and other drivers, particularly at busy intersections. In some instances, the vehicle needed to be fully powered off and restarted before it would move again. This is a known and widely reported defect affecting Honda and Acura vehicles with the auto idle stop system, currently under NHTSA engineering analysis ea25004. The problem has occurred repeatedly and unpredictably, with no consistent warning beforehand. The vehicle and its auto idle stop system are available for inspection upon request. The problem has not yet been confirmed by a dealer, though I intend to bring it in for diagnosis. There were no warning lamps or messages before the failures occurred; the only symptom was the engine simply not restarting after an automatic idle stop.

I'm filing a formal safety complaint regarding my 2019 Honda Odyssey, VIN [xxx], & requesting an engineering-level review by american Honda. I've brought this vehicle to an authorized Honda dealer numerous times for recurring & increasingly serious electrical, engine/power-loss, & transmission problems. Despite thousands of dollars in repairs, the problems continue. The vehicle has unexpectedly shut off/lost power; the power sliding doors have failed & required manual opening; low-battery warnings have appeared; & the radio/infotainment system repeatedly loses power and resets. I have photographs showing the message: “anti theft system–this system has lost power. ” more seriously, the vehicle has malfunctioned in park, reverse, while shifting into drive, & while turning. Most recently, the transmission would not engage properly and the vehicle had to be shut off and restarted multiple times before it would go into drive. Delray Honda documented this transmission failure/no-drive incident on its August 2026 repair order. In may 2026, I brought the vehicle to delray Honda for a check engine management system warning. Repairs were performed, but the warning returned within days. Delray Honda then replaced the power distribution module, costing me approximately $2,000. I've spent thousands more dollars addressing these recurring problems without resolution. I understand Honda/NHTSA recall 19v-299 involved certain 2018–2019 Odysseys and a loss of power to the transmission control unit. My Odyssey appears to have been manufactured around the time of those Hondas that were covered by that recall. I'm not claiming without diagnosis that the defect is identical, but the similarity of the symptoms warrants an urgent investigation. I request that Honda open a formal safety case, review my complete service history, dtcs and tcm/pcm data, determine whether my vehicle has the same or a related defect, and review my prior repair costs for reimbursement. Thank you. Information redacted pursuant to the freedom of information act.

The contact owns a 2012 Honda Odyssey. The contact stated that while starting the vehicle and while driving at an undisclosed speed, the radio screen displayed "0:00", and the navigation system was inoperable. The manufacturer was notified of the failure by phone. The failure mileage was approximately 190,000.

While waiting at a stop light, the engine turned off and the vehicle forced itself into park. Taking my foot off the brake, had no effect. I was not able to put the vehicle back into drive. I had to shut off the engine and restart it in order to drive again. Of note, the ac and carplay were running at the time of the engine failure. No warning lights appeared. Cars behind me were honking at me. I have an appointment scheduled with the dealership to assess the auto-idle function.

My van has an auto-stop feature that shuts the engine off at stop lights. This feature will now occasionally shut the car off, but then fail to restart it. We have stalled out at intersections with the van not restarting for up to a full minute. This is incredibly dangerous and needs to be addressed immediately.

The speakers make a popping and crackling noise that is repeated, in a mid tone - high tone - low tone noise pattern, when the radio is on or off. It begins when the engine is turned on. It also occurs in standby/engine is not on/radio is on mode or in standby/engine is not on/radio is not on. The popping/crackling occurs whether the radio is on or not, and the radio can be heard along with the popping and crackling noise. I am guessing it is similar to the recall 23v-431, but this van VIN number does not have any recalls associated with it yet. Restarting the radio, resetting the radio, etc does not alleviate the issue. Also, the cabin camera is not working, says "problem with camera" and displays "loading" with the moving circular icon. The display remains dark for the cabin camera, and rear entertainment screen is also not accessible. Cannot recall any large bumps in the road, no collisions with anything. If the design of the cables has not changed, then the recall needs to cover all vins manufactured with the same wire assemblies and procedures, including all future vins, as this problem is clearly repeatable. The customer should not bear the burden to fix an issue that has been deemed an issue in prior year models, with no changes to the design or assembly procedure to the related components.

Power tailgate stopped responding to all inputs (button, remote, driver switch), dash displayed a "liftgate power failure" message, manual latch still functions. Fuses are good, connectors looked clean, and the boot is intact, points to module failure.

This vehicle needs to be added to the current recall 23v-431. Media screen goes blank and rear camera in operable when this happens.

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Starter failure due to heat. Vehicle has failed to restart several times while stopped in traffic and at a traffic light due to the auto idle stop function.

Numerous times since purchasing my van it has failed to start. At first it was just random at a stop light when I would forget to turn off the idle stop. Leaving me stuck at stop lights with a vehicle that won't turn on without multiple attempts. More recently it struggles to start after stopping to run errands or get gas or in drive thru lines. Having to depress the break pedal to the floor (much further than needed to even stop the car) and press and hold the on/off button while it chugs and attempts to start. The issue was able to be recreated by the dealer and they indicate that it is a starter issue but the part is on back order. Upon further discussion it appears that this isn't an unknown issue and that there is a current investigation into this issue. However, the service manager indicated to me that this isn't common and this was a "one off" incident.

Starter is very weak when hot. 2 hour drive in summer heat and the van would not start after stopping at a gas station.

2025 Honda Odyssey with 21. 5k miles on it. Pulled up to a stoplight after a 3 hour drive. Auto stop turned the van off. When the light turned green the van failed to restart. Put the vehicle in park, turned it off, waited a few seconds and attempted to re-start it. Van restarted but very sluggish, like the battery was dead. Pulled in and parked. Van started normal the rest of the day. Took it to the dealer 2 days later. They noted the battery was a little low but no codes and no explanation for why it failed to restart. They checked alternator and starter and claim they are both good.

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 analysis ea25004. I am filing this report because my vehicle demonstrates the specific pattern cited in that investigation: the failure persisting after the manufacturer's service campaign repair was completed. My family, including a teenage driver, operates this vehicle. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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