Owner-reported complaints naming the powertrain system, filed with NHTSA
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Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials. Every record below is an owner-reported complaint about the 2025 Honda Odyssey submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 36 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
The 25 most recent of 36, in the owner's own words
9/22/2026- the car idle stop failed to restart at a intersection. 9/23/2026- the car did not start after stopping to get gas. I have not taken it to the dealer yet. Will do it as soon as I get a chance. When the idle stop fails the car shift into parking and only the accessories are on.
The transmission has been having issues since it had 10 miles on it, it locks at certain speeds and wont go higher than 35, it misfires at lights, it will randomly make clunking sounds when driving and you can feel the vehicle throw you forward, ive taken it in multiple times, we have multiple cases open with Honda and they will not respond but it doesnt give any lights so dealership says they cant do anything even though theyve said they have felt it
The van got stuck in park after backing out of a parking lot. Changed to drive but gear shift back to park. Have to restarted the car twice. People were honking nonstop. This is not safe.
The contact owns a 2025 Honda Odyssey. The contact stated that while coming to a complete stop at a red light or a stop sign, the vehicle stalled and shut off unintendedly. There was no warning light. The vehicle was restarted. The manufacturer was notified of the failure and stated that there was an ongoing investigation associated with the failure. The vehicle was not repaired.
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.
For several weeks, my 2025 Honda Odyssey, with approximately 30,000 miles, had been jerking while being driven. An independent mechanic believed the problem might be transmission-related. I brought the vehicle to an authorized Honda dealership, reported the jerking and specifically stated that I suspected a transmission problem. The dealership recommended and performed a transmission-fluid service. On August 24, 2026, at approximately 4:00 p.m., my wife was driving on the New Jersey Turnpike with our children when the vehicle suddenly jerked and behaved as though the transmission was attempting to engage reverse while the vehicle was moving forward. This created an immediate loss of predictable vehicle control and nearly caused an accident. My wife managed to pull into a parking lot. The vehicle then would not move in reverse and displayed a transmission-system warning. The vehicle was returned to the authorized Honda dealership. The dealership subsequently determined that the transmission required replacement, and it is currently being replaced under warranty. No collision or physical injury occurred, but this sudden transmission malfunction placed my wife, our children and other motorists at serious risk. The vehicle is currently at the dealership, and the failed transmission may be available through the dealer or manufacturer. I am requesting that NHTSA investigate whether this is a safety defect affecting the transmission or powertrain in the 2025 Honda Odyssey.
Engine failed to restart after turning off at idle at a stop. When releasing the brake the engine tried to turn on but stalled out. It is available for inspection upon request. No major safety concern, traffic behind the vehicle was prohibited from moving until the vehicle could be restarted. The failure has not been reproduced by a dealer or service center, or inspected by anyone else. There were no warning lights but after the failure a message displayed saying “To continue to drive, depress brake pedal and push switch”. The failure first appeared after 10,000 miles and occurred between 5-10 times since then.
My van will stall at red-lights. It started three weeks ago. The car is a year and a half old. The auto- idle stop system is activated. We stop at a red light. Car stops. When we go to start car dings and thankfully has started 3 times. This time, the car made a ding and did not re-start. I was stuck at a now green light and couldn't move. The dash flashed hit the brake to re-start. I did numerous times. I couldn't get the car to switch to park or drive. I tried switching the car on and off and couldn't get it restarted. I was disabled for about 2 minutes before it kicked back on. My kids were in the car and this scared me.
When the engine is hot, the car hesitates to start for a couple seconds. Occurs on really hot days especially after stopping and starting the engine such as after getting gas or on idle stop at a redlight. The motor starter has been replaced by Honda to a new one but the issue can re-occur as the part being replaced is the same with the same build and will likely fail again in hot conditions.
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.
While at a stop light on a major road, the vehicles auto start stop engaged. Upon the light turning green, I released the brake and vehicle failed to restart. The vehicle put itself into park and flashed a warning message "problem detected....." . I pressed the start button, and at first the vehicle failed to start, making a clicking sound, consistent with a dead battery or starter. I had to press the start button 4 times before the vehicle restarted and I could proceed. I was extremely concerned as I had my wife and three kids in the car, unable to move forward on a major roadway. I have an appointment at the dealer for this Friday.
After driving for awhile, stopped in a store for a minute and came out and my van barely started. Made my next stop a minute down the road, and when I came out the car wouldnt turn over. Let it sit for a minute and still heard the start click once and nothing. Let it sit for 10 15 mins then tried to start it and it worked. Had battery and alternator tested at Auto Parts store and both ok. After reading some forums and researching, I see that it is an overdraw from the auto start feature. I also saw the model of starters on my year of van were only used one year, so it seems like its a problem Honda has known about. Im seeing a lot of these issues, and the guy at the auto parts store even knows about it, so it is something that needs a recall. Clearly these starters are a problem. My van just rolled over 36k miles because we drive a lot so its not under warranty still.
Incident Description: The vehicle entered an Auto Idle Stop event at a traffic light and stalled completely instead of restarting when the brake pedal was released. The red battery warning light illuminated, and the vehicle had to be shifted into Park and the ignition key cycled multiple times to eventually achieve a slow, sluggish crank and engine restart in active traffic. Another vehicle was almost going to hit me from behind since red light turned to green when this happened, and that driver from far behind was thinking that my vehicle will start moving and did not slow down. That driver started honking and yelling. It was scary since I had 3 small kids in my vehicle. Dealership Diagnostics: I dropped off the vehicle at a local Honda Dealership to get this checked. From the invoice/service document, I see this note: Cause: Took several attempts but was able to duplicate concern of when vehicle goes into auto start stop it will not always restart, will have to cycle key. Noticed when it did restart it is slow to crank. Battery tested good, and had good reserve voltage. Used tech line as a resource and found this issue is caused by starter not having enough voltage to properly engage auto stop start. rec replacing starter. Correction: Replaced starter.
With idle start/stop enabled, there have been multiple occasions where the system has not restarted, causing my wife to almost get into an accident with my two young daughters in the car. Honda has looked at it on two occasions and claims there is no issue. However when researching this online, it has let me to find a NHTSA investigation, as well as hundreds of complaints about this are found online.
The contact owns a 2025 Honda Odyssey. The contact stated that while depressing the brake pedal and stopping at a traffic light, the gear shifter independently shifted to park(P). The vehicle was turned off and restarted, and the vehicle then operated as intended. A dealer was contacted. The vehicle was taken to the dealer to be diagnosed; however, the diagnostic result was unknown. The vehicle was not repaired. The insurance company had not been contacted. The manufacturer was made aware of the failure and opened a case. The failure mileage was 26,000.
Once the vehicle's auto idle stop system engaged at a traffic light, and the engine failed to restart automatically leaving us stranded in active traffic. We usually disable the system but forgot that time. It has also required multiple manual push-button attempts to start from a parked position at home and in public parking lots. The vehicle was brought to an authorized Honda dealership for this issue. The dealer stated they could not replicate the symptom, diagnosed it as a low battery, and charged the battery. The issue persists. Failing to restart at a traffic light creates an immediate rear-end collision hazard and leaves occupants vulnerable in the middle of active intersections.
Mother single , sole support 4 babies and going through divorce needed a vehicle right away . Carvana rated this car 94 after its 150 pt inspection . It was noted that it was in an accident. Driving the babies on interstate the Pilar flew off, later on still on interstate , ck engine light came on, then steering warning, brake warning and sudden loss of speed . Car would not accelerate beyond 40 miles per hour . Day 32 car was taken to Honda where she found she could not open the hood. Car was then sent to Gerber A very quick look found upper tie bar was “buckled” the dipstick bent and radiator “floating” also impact bar was missing or bent … read Gerber report for clarification , told with hood misaligned and latch bent way back hood could possibly fly up and no front end protection in a collision. I am horrified and begging for emergency swap… they are claiming cosmetic … BUCKLED upper tie bar?? They are waiting on a more detailed report gambling with 5 lives or more ! I loaned this child7000 to help lower payments . I wanted her to have a safe vehicle to drive. This is undrivable yet she cannot afford rental.. why are they waiting for detailed when we know it was wrecked January 13 2026 and obviously NOT a 94 and safety inspection 150 was clearly fraud I would never have let her and those babies buy a wrecked piece of junk! I am scared EVERYTIME she gets behind the wheel. The amount of time is taking away from her new job. She is sole support please help emergency swap now
The vehicle has an Auto Idle Stop no-restart/stalling issue. While stopped at a traffic light/intersection, Auto Idle Stop engaged. When attempting to proceed, the vehicle did not resume driving normally, shifted itself into Park, dashboard warning lights flashed, and the only way to move again was to turn the vehicle completely off and restart it. This left the vehicle disabled in traffic and created a serious rear-end collision/intersection hazard. The issue was confirmed by a Honda dealer on 06/26/2026 at approximately 11,804 miles. The repair order states that code P07AF was stored and that a snapshot showed a drop in cranking voltage due to a failing starter. The dealer advised that the starter must be replaced, but stated the starter is on severe backorder. The vehicle remains unrepaired. Honda customer service case #16464445. The vehicle is a low-mileage 2025 Honda Odyssey purchased new in April 2025 and used as a family vehicle to transport children. Prior Honda service records show maintenance was performed at approximately 9,800 miles, including a multi-point inspection, and the battery terminals/cables/mountings and battery condition were checked OK at that time. This appears related to NHTSA Engineering Analysis EA25004, “No Restart After Auto Start/Stop Engages,” involving 2018–2025 Honda Odyssey vehicles. The failed starter/vehicle is available for inspection upon request.
Our 2025 Honda Odyssey has now experienced three failures for the same defect, including two starter replacements within two weeks, without resolution. The most recent repair, overseen by Honda Tech Line, happened after the vehicle died June 2 while in traffic and it had to be towed to the local dealership using our insurance. On June 15 the vehicle died again, just five days after I picked it up with assurance that this issue was resolved, and it is was towed back to the dealership by Honda Towing. The repeated part swaps, without root‑cause diagnosis, clearly have not resolved the issue and have left us with a one‑year‑old vehicle that is unreliable and unsafe to operate. My minivan has failed in the middle lane of a major road while idling at a stoplight twice and in a parking lot once. All incidents were within 15 minutes of driving and 5 miles from my home. This is a critical safety defect and the repeated failures place this vehicle within the criteria that may qualify under Kentucky’s lemon law. We have not made that claim yet, but we are formally documenting the repair history and escalation. ———- -Starter failed and was replaced twice. This could have something to do with the auto start/idle system. -our one year old van is unsafe and unreliable. It died near a major intersection while idling at a stop light. I was in the middle lane and it wouldn’t restart for 5 minutes. I was very afraid my children and I would be rear ended. -the dealership has confirmed the problem, but they not been able to recreate the scenario despite it happening on 3 separate occasions. -Honda Tech Line has been directing the local dealer what to do after the first starter replacement failed. I filed a claim with American Honda. -no warning lights/lamps prior to failures
When I come to a full stop and the Idle Stop feature engages, sometimes the engine will not restart. I get a message saying to press the button to start the engine, but it does not start after doing that either, so I have to shut the car off and restart it. There are a bunch of lights that flash when this happens.
When the engine shuts off while braking at a light/stop sign etc occasionally the car will fail to turn the engine back on and the car will go in to park and the only way to get in to drive is to restart the car. This happens once or twice a month.
Engine fails to restart after the Auto Idle System shuts it down, leaving vehicle stranded in traffic. The issue is sudden and unpredictable, and may not appear in inspection. A stalled car in live traffic is a safety concern. The vehicle is at a dealer for diagnosis and repair. No warning appeared before the problem began happening. (About 5 times in 2.5 months.) Sometimes when it occurs, a brief error message seems to appear on the dash, but quickly disappears. It usually takes cycling through restarting the car to get going again. Not a good environment to stop and take video, although it's almost impossible to record.
2025 Honda Odyssey Auto Idle Stop fails to restart engine after automatic shutdown at intersections; vehicle must be restarted manually; safety hazard; repeated occurances; video documentation made. Reference: NHTSA EA25004
Had the starter & battery replaced November 2025. It’s now June 2026 and it still is having trouble starting. It will sometimes not start and then just make a clicking noise and all the lights in the dash come on and air, but engine won’t well start. Then you take foot off break, then turn it off and try again it will start. The dealership ran tests and said everything was fine. When we first had this problem the car would stall out and shut off in traffic.
The vehicle turned off at a red light and would not start up again.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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