2025 Honda Odyssey

On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

The contact owns a 2025 Honda Odyssey. The contact stated that her husband had the rear drivers side door open while leaning halfway in to the vehicle when the door suddenly began to close unintentionally, the contacts husband began to frantically push on the door until it was dislodged from the channel. No warning lights were illuminated. The local dealer was contacted however the vehicle was not diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 50,000.

NHTSA ID

11756604

Incident

Aug 12, 2026

Mileage

50,000 mi

I was stopped at a stop sign and my 2025 Honda Odyssey shut off. I stopped the AIS engaged, then when I took my foot off the brake the engine didn't engage. The car wouldn't move. I took me about 30 seconds to get the mini van's engine to engage. This is the second time this type of incident has happened.

NHTSA ID

11756405

Incident

Aug 8, 2026

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.

NHTSA ID

11756239

Incident

Aug 8, 2026

Auto idle/stop system engages while sitting at a traffic signal as designed. When attempting to proceed, the engine fails to restart and all electrical components completely shut off for several minutes. All components stop working (information screen, gauges, hazard lights, and door locks are non-functional) and the vehicle is unable to turn on for several minutes. This creates an unreasonable safety risk for the occupants of the vehicle and for surrounding motorists when this failure occurs in active traffic lanes as the vehicle when it is reasonably expected for the vehicle to resume propulsion and with no ability to turn on hazard lights to warn approaching motorists of the vehicle's disabled status. The failure of the door locks during the event traps the occupants inside the vehicle, which we are in Florida so, hot summer days the internal temperatures can reach deadly levels within minutes with no way to escape. The vehicle was initially inspected by a manufacturer authorized dealer service department on 7/8/25 and the issue was dismissed. The vehicle was again inspected on 7/30/25 by the same service department and confirmed. A starter motor assembly and relays were replaced by the dealership and the vehicle returned to use on 8/4/25. Again, on 8/5/26 the vehicle exhibited the same safety defect while in an active traffic lane. The vehicle was returned to the same service department on 8/6/26 where it remains as the date of this report with no communication on resolution for the problem from the manufacturer. There were no warning lights or messages prior to the failure.

NHTSA ID

11756215

Incident

Aug 5, 2026

UNKNOWN, while driving when I was waiting at the signal (waiting for green signal to move) my vehicle automatically shifting from direct to park gear.Once shift to park then no other gears/buttons do not work, only I can turn off the vehicle and restart then all gears/buttons work to move on. This safety issue happened three times (6/25/2026, 7/13/2026 & 8/10/2026) on the road. I took my vehicle on 7/14/2026 to the dealer and they said they didn't find any issue after keeping the vehicle for six days with them. If this issue happens while a vehicle is moving on the road it is going to be a big disaster. After the 08second incident I reported to the Honda manufacturer too.

NHTSA ID

11756101

Incident

Aug 10, 2026

2025 Honda Odyssey with 21.5k miles. Noticed the van shaking when braking. Took it to the dealer for warranty service and they claim that warped rotors were the issue. Declined to provide warranty service claiming brakes are only covered for 12 months. Rotors should not be warped after 20k miles, especially when never used under heavy load.

NHTSA ID

11756066

Incident

Aug 10, 2026

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.

NHTSA ID

11756065

Incident

Aug 7, 2026

I have now had three instances within the last three months where my car has stalled out at traffic lights when the Idle Stop was engaged. The first two times, the car stalled out when I pressed the shut off switch for the Idle Stop on the center console. I am not sure about the first time since I was surprised the car stalled. The second time it happened, I hit the button twice in immediate succession and then the car stalled. The third instance was this past Thursday, 8/6/26. I did a double tap on the brake pedal when the traffic light turned green and the car stalled out. The safety of myself and my children in the car with me has been put at risk since each time it happed we were stopped at a red light at a major intersection on busy major roads. Cars were coming up fast behind us and could have rear ended either myself or the cars behind me (when there were cars behind) pushing them into my car and injuring all drivers and passengers involved. Today, I took the van into the dealership where I bought it for their service department to investigate. The VIN on the van is not covered under TSB 23-027 but I did not ask them yet whether is is covered underJuly 31, 2025 nationwide dealer bulletin ("Request for Visit: 2023–2025 Odyssey/Passport/Ridgeline Auto Idle Stop No Restart") which explicitly covers 2023–2025 Odyssey with no VIN-range cutoff, based on manufacture date after 11/2022. There were no warning lamps, messages or other symptoms of the problem prior to the failure each time.

NHTSA ID

11755836

Incident

Aug 6, 2026

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2024-2026 Odysseys & Ridgelines and 2024-2025 Passports with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P0441 (EVAP System Purge Flow Malfunction) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2024-2026 Odysseys & Ridgelines and 2024-2025 Passports with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P0441 (EVAP System Purge Flow Malfunction) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2024-2026 Odysseys & Ridgelines and 2024-2025 Passports with a customer complaint of the Malfunction Indicator Light (MIL) on with the DTC P0441 (EVAP System Purge Flow Malfunction) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2025 Accords, 2022-2025 Civics & Odysseys with a customer complaint of a detached or loose rearview mirror bracket/slug from the windshield. Failure between the mount spring and bracket will not be accepted. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

Over the Air System Update - This update contains the following performance enhancement: Resolves Navigation app freezing or black screen due to phonebook memory being full.

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2025 Accords, 2022-2025 Civics & Odysseys with a customer complaint of a detached or loose rearview mirror bracket/slug from the windshield. Failure between the mount spring and bracket will not be accepted. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.