2019 Honda Odyssey

The Office of Defects Investigation (ODI) has received 414 reports of connecting rod bearing failures in the 3.5L V6 engine used in the following vehicles: Model Years (MY) 2018-2020 Acura TLX, MY2016-2020 Acura MDX, MY2016-2020 Honda Pilot, MY2018-2020 Honda Odyssey, and MY2017-2019 Honda Ridgeline.  The subject engine failures were analyzed as part of a Recall Query (RQ24013).  It was determined that these engine failures are outside the scope of Honda Recall 23V-751. Further, evidence gathered in conjunction with RQ24013 does not suggest this failure is caused by the same crankshaft manufacturing defect that is addressed by Honda in Recall 23V-751.  Based on analysis of data from RQ24013, NHTSA has closed that investigation. The significant number of reports of engine failure in vehicles outside the scope of RQ24013 presents a potential safety risk that warrants further investigation.  ODI is opening this Preliminary Evaluation (PE) to further evaluate the scope and severity of the potential problem and to fully assess the potential safety-related issues.  To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

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.

On October 28, 2025, the Office of Defects Investigations (ODI) opened PE25018 to investigate complaints of inadvertent deployment of the side curtain and/or side thorax air bags. These complaints concern model year (MY) 2018-2022 Honda Odyssey vehicles manufactured by American Honda Motor Co. (Honda). Honda issued recall 26V227 on April 9, 2026, to address concerns of inadvertent side air bag deployment. In the recall filing, the company stated that “[a]s of April 2, 2026, Honda has had 130 warranty claims, 25 reports of an injury, and no reports of death related to this issue from January 24, 2017 – April 2, 2026.” Honda states that the Supplemental Restraint System (SRS) Electronic Control Unit (ECU) contains incorrect deployment parameters for the side thorax and side curtain air bags, which may cause inadvertent deployment when the vehicle encounters strong road impacts, such as driving over potholes, speed bumps, or road debris. Honda stated that the SRS control logic for the second and third rows of seating contained an insufficient deployment threshold margin, allowing signal inputs to be misinterpreted as side impacts and causing inadvertent deployment of the side thorax and side curtain air bags. Recall 26V227 states that dealers will reprogram or replace the SRS ECU with improved air bag deployment parameters. Consumers received notice of this recall in late May 2026. In view of the recall being conducted by Honda, ODI is closing this Preliminary Evaluation (PE). The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

On November 8, 2024, the Office of Defects Investigation (ODI) opened Recall Query RQ24013 to assess the scope of Honda recall 23V-751 after receiving complaints that alleged connecting rod bearing failures in vehicles that were not within the scope of recall 23V-751. In November 2023, Honda recalled 248,999 various Model Year (MY)2016–2020 Honda and Acura vehicles equipped with the 3.5L V6 engine. Honda recalled these vehicles due to a crankshaft manufacturing defect that caused premature connecting rod bearing wear and engine seizure. While the out-of-scope failures involved in these complaints appear to have a very similar failure mechanism as the recalled engines, a thorough analysis of all available data from Honda has not indicated that the same manufacturing defect exists in the out-of-scope engines as the engines recalled by 23V-751. Based on this analysis ODI has determined that Honda has properly defined the scope of recall 23V-751. Consequently, ODI will close this RQ investigation.  NHTSA will continue to investigate these complaints of engine failure as part of a new Preliminary Evaluation Investigation (PE25008). The Agency reserves the right to take additional action if warranted by new circumstances.

2019 Honda Odyssey VIN: [XXX] The same passenger-side door window on my 2019 Honda Odyssey has spontaneously shattered on two separate occasions. There was no known collision or impact that would explain the repeated failure. Because the same window has now shattered twice, I am concerned there may be an underlying issue involving the glass, door/window assembly, regulator, alignment, or stress being placed on the glass. This window is immediately beside the seating position normally occupied by my young daughter. Fortunately, she was not sitting in that position when either incident occurred. I am concerned about the potential for injury from shattered glass if another failure occurs while a child is sitting there or while the vehicle is being driven. The repeated failure of the same window makes me concerned that simply replacing the glass does not address the underlying cause. I am reporting this so NHTSA has a record of the repeated failure and can determine whether similar incidents have been reported involving 2019 Honda Odyssey vehicles or related models. Photographs and documentation of the failures are available. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11766623

Incident

Sep 20, 2026

I am reporting a severe engine issue on my 2019 Honda Odyssey that matches the exact failure profile of NHTSA Recall 23V-751 and the ongoing investigation PE25008 / RQ24-013. While driving, the vehicle randomly began experiencing a loud, progressive metallic knocking and ticking noise from the engine, sometimes it was a squeal, the engine stalled while in motion and wouldn't drive anymore. This presents a severe safety hazard, as an unexpected engine stall or failure while driving increases the risk of a crash. My VIN currently shows as "excluded" from Recall 23V-751. However, given that this vehicle has the exact same 3.5L V6 engine and is exhibiting the textbook symptoms of premature connecting rod bearing wear and crankshaft-related failure, I request that the NHTSA review this case to expand the recall parameters to include my vehicle batch.

NHTSA ID

11766355

Incident

Sep 20, 2026

Starting around 70,000 miles the front multipurpose camera continues to fail causing various warnings, including: - Collision mitigation system problem - Adaptive cruise control problem - Lane keep assist problem - Road departure mitigation system problem - Auto high beam problem

NHTSA ID

11766242

Incident

May 1, 2026

when trying to accelerate from a stop or slow roll velocity (e.g. at a yield sign), there is a hesitation between the time I press on the accelerator and when the vehicle moves. This becomes a hazard because if there is a delay in acceleration, I could be hit by oncoming traffic. The fuel pump had been previously recalled because of an impeller issue. At that time, the same thing would happen. Hesitation in acceleration. After the fuel pump was replaced (done early 2025 on my vehicle), that symptom was better but in the last few months, it has returned and is increasing in frequency. It happened today as I was driving 9/22/2026 but it was not the first time. It has been ongoing for months now so I decided to finally report it. I feel that this is related to previous NHTSA recall campaign ID number 23V858000

NHTSA ID

11766175

Incident

Sep 22, 2026

1. The tailgate of Honda Odyssey started opening and closing on its own. 2. There was water damage on the electronic tailgate control unit that short circuited it making it misbehave. 3. The unit started opening and closing on its own mid drive and caused a minor fender bender. 3. Honda dealership could not find any source of water intrusion.

NHTSA ID

11766009

Incident

Sep 13, 2026

While driving on the turnpike, we heard a loud explosion sound and our sunroof shattered. The weather was sunny and clear and there was no other vehicles near us at the time. There was nothing on the road ways either.

NHTSA ID

11765913

Incident

Sep 21, 2026

I own a 2019 Honda Odyssey EX with approximately 117,000 miles. While driving the vehicle from the roadway into a church parking lot, the driver's-side rear coil spring completely broke. There was no collision or accident involved. The failure occurred during normal driving as the vehicle entered the parking lot. The snap was very loud. I have never previously experienced a broken coil spring on a vehicle. The failure involved a major rear suspension component and occurred while the vehicle was in motion. A broken coil spring could potentially affect vehicle stability and ride height, damage other suspension components or the tire, or create a hazard if a portion of the broken spring were to become detached. I am reporting this because I am concerned that a rear coil spring would completely fracture during normal use at approximately 117,000 miles. I have since learned of other reported rear coil spring failures involving 2018–2019 Honda Odysseys, including reports of driver's-side and passenger-side rear springs breaking while the vehicles were being driven. I request that NHTSA document this failure and consider whether there is a broader safety issue involving the rear coil springs on this generation of Honda Odyssey. Vehicle: 2019 Honda Odyssey EX Mileage: Approximately 117,000 miles Component: Driver's-side rear coil spring Failure: Complete fracture/breakage while driving Accident or collision involved: No Date of failure: September 11,2026

NHTSA ID

11765116

Incident

Sep 11, 2026

My wife was driving our young daughters and the vehicle had multiple warning lights come on. then several messages stated transmission drive unavailable. then the vehicle stopped moving and stalled in a busy street. it would re-start but was idling at 3000rpm. however it would not move from where it died. it had to be towed to the Honda dealer. It was a very dangerous situation because it went from a check engine light to a dead vehicle in 30 seconds. very unsafe!

NHTSA ID

11764506

Incident

Aug 20, 2026

Owner Notification Letter - Under certain circumstances, after coming to a stop and the idle stop feature engaging, your vehicle may not automatically restart.

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2020 Accords, 2016-2020 Civics, 2017-2020 CR-Vs, & 2018-2020 Odysseys that have been diagnosed to be in need of the low-pressure fuel pump, fuel strainer, fuel meter or fuel tank replacement.

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2020 Accords, 2016-2020 Civics, 2017-2020 CR-Vs, & 2018-2020 Odysseys that have been diagnosed to be in need of the low-pressure fuel pump, fuel strainer, fuel meter or fuel tank replacement. If you have a vehicle that match the qualifiers listed below, AHM requests to have the photos of the lock ring & the low-pressure fuel pump flange taken & sent to TIS (click HERE for example photos).

Service Bulletin - MIL flashes and vehicle will not accelerate, low power. After cycling the ignition, the symptom does not return with no stored DTCs. This issue is more common in regions with cold weather (specifically near or below freezing temperatures). Usually after a long drive (around 2 hours) and accelerating while cornering.

Dealer Message - Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2020 Accords, 2016-2020 Civics, 2017-2020 CR-Vs, & 2018-2020 Odysseys that have been diagnosed to be in need of the low-pressure fuel pump, fuel strainer, fuel meter or fuel tank replacement.

Service Bulletin - The MIL flashes and vehicle will not accelerate, low power. After cycling the ignition, the symptom does not return with no stored DTCs. This issue is more common in regions with cold weather (specifically near or below freezing temperatures). Usually after a long drive (around 2 hours) and accelerating while cornering. Moisture accumulation in the intake manifold during long drives gets drawn into the combustion chamber while cornering, causing misfires.