2017 Honda Odyssey

The Office of Defects Investigation (ODI) has completed its review of a Petition dated May 30, 2026. The Petition requested an investigation into inadvertent air bag deployment in model year (MY) 2011-2017 Honda Odyssey vehicles. The Petition contended that air bags can deploy absent a sufficiently severe event to trigger a deployment, such as an impact, rollover event, or G-force threshold breach. The Petition further alleged that the Diagnostic Trouble Codes (DTCs) and Supplemental Restraint System (SRS) conflict and inaccurate data is being recorded for the air bag system. An air bag is a supplemental vehicle occupant restraint system that deploys a cushion designed to inflate in milliseconds during a collision. The cushion prevents vehicle occupants from striking hard interior surfaces and, in some cases, exterior surfaces. Air bags are designed to work in conjunction with seat belts, the primary occupant restraint system. Seat belts restrain occupants keeping them in place for the air bag to provide proper protection and to mitigate injury from air bag deployment. An air bag system consists of an air bag cushion, an inflator module, an air bag Electronic Control Unit (ECU), and impact sensors. When a crash begins, impact sensors located on the vehicle exterior begin to measure impact severity. If a crash is severe enough, the sensors send a signal to the system’s ECU, which then signals the inflator to fill the air bag. ODI reviewed 9 Vehicle Owner Questionnaires (VOQs), one Early Warning Reporting (EWR) Death & Injury (D&I) report, and several TREAD (Transportation Recall Enhancement, Accountability, and Documentation) Field Reports alleging inadvertent air bag deployment in the Subject Vehicles. Several complaints allege that the inadvertent deployment of air bags occurred while traveling over potholes, road debris, or during minor curb strikes. All the complaints allege that there was no warning prior to the inadvertent deployment. In general, different types of air bags are designed for different types of impacts. For instance, frontal air bags are generally designed to deploy during frontal impacts; side curtain air bags are generally designed to deploy both during rollovers and impacts to the sides of the vehicle; and side thorax air bags are generally designed to deploy during impacts to the sides of the vehicle. While these are broad categories of crash scenarios, the specific conditions under which deployment is intended are multifaceted and dependent on complex algorithms. Differences in particular variables can make a deployment an intended part of the design in one scenario and not in another similar scenario. Although the reports described above all contain allegations of inadvertent deployment, the conditions under which those reported deployments occurred differ widely. The reports ranged different types of air bags, different combinations of air bags, and different driving scenarios preceding the deployment. Based on the data available to ODI, there is no clear pattern or factor to prompt the alleged inadvertent deployments. Thus, ODI’s review did not identify a trend of a vehicle defect regarding any type of air bag in the Subject Vehicles. Moreover, ODI did not identify any reports of inadvertent air bag deployment that resulted in a loss of vehicle control. ODI is likewise not aware of any crashes or severe injuries involving the Subject Vehicles that resulted from inadvertent deployment of the air bags. ODI recognizes that inadvertent air bag deployments can create dangerous safety hazards. For instance, an inadvertent deployment can surprise a driver, leading to a loss of vehicle control; or if an inadvertent deployment occurs when an occupant is out of position, the force of the deployment may injure the occupant. Inadvertent deployments have been the basis for past NHTSA recalls and investigations. Here, the Petition cites one such recall: Recall 26V-227, which concerns inadvertent deployment of the side curtain and thoracic air bags in MY 2018 to 2022 Honda Odyssey vehicles (the “Recalled Vehicles”) due to the air bag ECU containing incorrect deployment parameters. Although this recall involved Honda Odyssey vehicles in adjacent model years to the Odyssey vehicles that are the subject of this Petition, ODI understands certain key differences to exist between the two groups of Odyssey models. Honda introduced a new generation of the Odyssey line in 2018. This new generation involved a large-scale redesign and a new vehicle platform compared to the previous model years. As a result, the vehicles covered by the Petition differ from the recalled vehicles in many characteristics, including physical dimensions, engines, transmissions, and air bag ECU algorithms. Given these differences, ODI’s review has not identified evidence that the reports of inadvertent deployment in the Odyssey models covered by the Petition correlate to Recall 26V-227. After thoroughly assessing the material submitted by the Petitioner, consumer complaint information in NHTSA’s databases, and other relevant information already in possession of the Agency, NHTSA has not found sufficient evidence to indicate that a trend of inadvertent air bag deployments as alleged by the Petitioner is likely to present a safety related defect that would warrant a formal investigation. After full consideration of the available information the Petition is denied. A denial report will be posted in the Federal Register. The closing of the Petition does not constitute a finding by NHTSA that a safety related defect does not exist, and the agency reserves the right to take additional action if warranted by future circumstances. The Petition can be viewed at NHTSA.gov under ODI Number 11744118.

See attached letter for complaint for potential Defect Petition DP26005

NHTSA ID

11744118

Incident

May 30, 2026

The contact owns a 2017 Honda Odyssey hauling a trailer equipped with a Rhino USA Trailer Hitch Coupler Lock Kit. The contact stated that while driving at 70 MPH over a bump, the trailer hitch latch lock had failed, causing the trailer to detach and strike the rear of the vehicle, producing sparks. The safety chain remained on the trailer. Upon inspection, the contact discovered that the coupler latch had opened and the lock was no longer securing the trailer. The trailer lock was found, but the pin was missing. The contact used a jack to lift the trailer and put the trailer back on the hitch using another pin and was able to continue driving for the rest of the trip. The manufacturer was not made aware of the failure. The failure mileage was unavailable.

NHTSA ID

11740914

Incident

May 1, 2026

I was driving on the highway at approximately 65 mph and the passenger side SRS (seatbelt and airbag) deployed. There was no collision, pothole or any other change in momentum to the vehicle immediately prior to deployment. No other airbags deployed.

NHTSA ID

11733930

Incident

Apr 25, 2026

Vehicle jerks and stalls while accelerating and has died and coasted at times. Was told it has a recall but was not issued one since I have owned it since early this year. Called a Honda dealership and was told that it did not qualify for the recall. Seems to do this after I’ve drove it for a while and it is warmed up.

NHTSA ID

11725327

Incident

Mar 10, 2026

-Torque convertor/transmission. We do currently have it and it could be inspected. -A sudden transmission failure could pose a safety risk to us and others. -Yes, see story below. Technician drove and did report feeling the shuddering. -Yes, by honda and now a third party mechanic. -No lights. We received a recall/extension warranty for the torque converter/transmission. My van is currently having shuddering issues. When we took it to Milton Martin Honda in Gainesville, GA, they reported the issue is present, but not at a certain "threshold" for them to be required to fix it. They then proceeded to charge me $175 for diagnostics because the issue did not reach said "threshold." They then proceeded to tell me that a torque convertor will cost me $5200 and that the reason it is so expensive is because they just raised their prices on torque convertors. Definitely appears that they are weaseling out of fixing these recall/warranty extensions and then up-charging when people do have to pay cash for the vehicle to get fixed. Also I have researched and torque convertors with labor are not that expensive and thus things seems a bit nefarious. Currently we are getting a third party mechanic involved to assess the vehicle further.

NHTSA ID

11698082

Incident

Nov 6, 2025

At 60 mph the vehicle began shaking , I pulled over , put it in park while still running, and got out to inspect. I noticed some smoke from under the hood and by the time I got inside to release the hood latch , the smoke stopped. With multiple lights on the dash I shut it off . It would not restart . It was towed to my home. We pulled off the belt and attempted to turn the engine crank with a breaker bar, and it is seized. We also hooked up a scanner in which it showed many faults.The battery tested good , and the starter was trying to engage .

NHTSA ID

11682617

Incident

Aug 22, 2025

The contact owns a 2017 Honda Odyssey. The contact stated that after exiting the vehicle and pressing the buttons to lock the doors, the front driver’s side door locked and immediately unlocked, failing to remain secured. The cause of the failure was not yet determined. The local dealer and the manufacturer were notified of the failure, but no assistance was offered. The failure mileage was 80,000.

NHTSA ID

11682331

Incident

Aug 11, 2025

Mileage

80,000 mi

I own a 2017 Honda Odyssey that is currently covered under an extended warranty related to the torque converter, specifically addressing Diagnostic Trouble Code (DTC) P0741. I experienced symptoms twice—once in January 2025 and again in May 2025—using an OBD-II scanner. I documented these occurrences with independent scan results in May and confirmed communication via text message at the time of the first incident. Following the second occurrence, I had the transmission fluid changed, which cleared the error code. I later received an official notification letter in June 2025 regarding the extended warranty coverage for the torque converter issue. At that point, both incidents had already occurred. I scheduled an appointment with my local Honda dealership (Serra Champaign) to have the issue addressed under the warranty. However, the dealership stated they were unable to retrieve the P0741 code from the vehicle and would not proceed with the required teardown or submit a warranty claim unless the code was actively present in their system. Despite providing the dealership with third-party documentation clearly showing that the P0741 code had occurred, they advised that American Honda policy requires a current fault code before any repair or investigation can begin. I then contacted American Honda Customer Support and opened a case, but was told that the dealership has full discretion on whether or not to proceed with a warranty repair. The dealership, meanwhile, maintained that they cannot move forward without current code data due to Honda’s policy, leaving me in a circular situation with no resolution. This issue was clearly experienced during the warranty period, but due to the delayed arrival of the warranty notification and the policy requiring a current DTC, I am now at risk of missing the opportunity to have the problem properly repaired—even with documented proof. My Odyssey is currently within 9,000 miles of the extended warranty mileage limit.

NHTSA ID

11671987

Incident

May 18, 2025

Service Bulletin - The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.

Service Bulletin - The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.

Owner Notification Letter - the piston ring function can deteriorate due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the Malfunction Indicator Lamp (MIL) to come on.

Service Bulletin - The piston ring function deteriorates due to ring wear and sticking from sludge. Oil from the crankcase adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.

Dealer Message - Piston ring effectiveness may be reduced due to excessive wear and oil sludge build-up, which can cause oil to adhere to the spark plug, potentially leading to carbon fouling and misfire triggering DTCs P0301 through P0304 and cause the MIL to come on.

Service Bulletin - The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire.