2023 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.

Car keeps hard braking on its own.

NHTSA ID

11775990

Incident

Nov 5, 2026

My vehicle was repaired for the Most Net Off error code back in December of 2023. However, the same issues are popping up again and Honda will not honor a failure on their end to fix the problem. The radio is completely shutting down, turning off the back up camera which is a safety hazard.

NHTSA ID

11775792

Incident

Jul 1, 2026

My 2023 Honda Odyssey (approximately 38,000 miles) has an intermittent no-crank/no-start condition. Pressing the push-button start produces no crank at all; the engine only starts on exactly the fourth press, consistently. The battery was tested and is good. The condition worsened noticeably after a high-pressure car wash, suggesting moisture intrusion. This matches Honda Technical Service Bulletin 23-023 ("Engine Does Not Crank"), which covers 2018–2023 Odysseys and attributes the defect to water entering the starter motor. The vehicle is about 2,000 miles past the 36,000-mile bumper-to-bumper warranty. I am concerned the condition will degrade without warning and leave my family — including small children — stranded. The vehicle is scheduled for diagnosis at Tracy Honda in [XXX] on XXX. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11771958

Incident

Oct 18, 2026

Engine restart failure when I try to start driving after stop for the traffic light. Engine turned off automatically. Experienced 4-5 times.

NHTSA ID

11771664

Incident

Sep 21, 2026

My 2023 Honda Odyssey experienced a serious malfunction of the Auto Idle Stop system at approximately 32,987 miles. While stopped at a traffic light, the engine automatically shut off as designed but failed to restart when I attempted to move forward. This created a dangerous situation because my vehicle was unable to move when the traffic light changed, potentially putting me, my entire family at risk of a rear-end collision. The vehicle's battery had been replaced only a few months earlier, so this problem occurred despite having a relatively new battery. After researching the issue online, I found numerous reports of similar Auto Idle Stop failures involving Honda Odyssey vehicles. This appears to be a recurring safety concern rather than an isolated incident. To my knowledge, there is currently no applicable recall providing a free repair for my vehicle. I believe this is a significant safety defect that Honda should investigate and address at no cost to affected owners. A vehicle should not unexpectedly fail to restart in active traffic, regardless of its age or mileage. I am requesting that NHTSA investigate this issue and determine whether a safety recall is warranted.

NHTSA ID

11771159

Incident

Oct 14, 2026

My 2023 Honda Odyssey, VIN [XXX], has developed an unusually loud noise from the engine compartment when I press the accelerator. The vehicle was purchased in XXX and currently has approximately 78,800 miles. An independent mechanic inspected the vehicle and did not identify an internal engine problem. The mechanic suspects that the high-pressure fuel pump may be the source of the abnormal noise, but this has not yet been confirmed by a Honda dealership. I am concerned that the noise could indicate a developing fuel-system defect and would like this issue documented and reviewed for any potential safety implications. I request that NHTSA investigate whether similar reports involving the 2023 Honda Odyssey indicate a defect that may warrant a safety recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11769805

Incident

Oct 1, 2026

I am filing a safety complaint regarding my 2023 Honda Odyssey. The airbag/SRS warning light suddenly came on while the vehicle was being driven normally. The vehicle has never been involved in a collision or accident. I have a diagnostic trouble code related to the airbag system. I contacted Honda's Recall Department and provided them with the diagnostic trouble code. Honda told me that I must take the vehicle to a Honda dealer for diagnosis before they will determine whether the problem is related to a recall or safety defect. The dealer told me that I may have to pay approximately $210 for the diagnostic inspection. I am concerned because this involves the vehicle's airbag safety system. I believe this could potentially be a safety-related defect, and I would like NHTSA to document and review this complaint and determine whether there are similar complaints, investigations, recalls, or manufacturer communications involving this issue. Vehicle: 2023 Honda Odyssey Mileage: approximately 41,000 miles No collision or accident occurred before the warning appeared. I have the diagnostic trouble code available and can provide it if requested.

NHTSA ID

11769036

Incident

Sep 27, 2026

The infotainment screen will go blank and will no longer show the backup camera at all. The FAKRA recall was performed at the Honda dealership when I first purchased the car new. I did not have any significant issues until around July of 2026. First, the speakers will crackle with static noise, then the volume cuts off completely, then the screen goes black and message pops up "Network Communication Lost, MOST Net Off". Then the screen will completely go blank and the backup camera will not turn on when in reverse. For the past two weeks the screen/radio/backup camera does not turn on at all. Completely black screen the entire time while driving, even with repeated power cycles. This is obviously related to the FAKRA recall that did not fix the issue. This is a major safety issue for a large, family vehicle to not have a functioning backup camera; something that has been federally required since 2016. A new recall needs to be issued so that the issue can be fixed correctly.

NHTSA ID

11768240

Incident

Jul 15, 2026

Service Bulletin - Under certain circumstances, after coming to a stop and the auto idle stop feature engages, the vehicle may not automatically restart. In other circumstances, vehicles may experience a slow crank or fail to start under hot ambient temperature conditions.

Dealer Message - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. In other circumstances, vehicles may experience a slow crank or fail to start under hot ambient temperature conditions. The customer should be able to restart the vehicle by selecting Park and pushing the ENGINE START/STOP button.

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.

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.

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.

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.