2024 Honda Passport

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.

Idle engine start/stop feature would not restart the car at a traffic light. This has happened several times. Also has slow cranking.

NHTSA ID

11776707

Incident

Oct 19, 2026

The car is experiencing intermittent no start. The auto idle system doesn't always restart the engine from a full stop. Causing the car to turn off and having to be restarted multiple times.

NHTSA ID

11775669

Incident

Nov 3, 2026

On XXX on XXX in [XXX] my wife and I were driving on a clear day at about 55 MPH and we heard an explosion like a gunshot. We quickly realized that our sunroof had exploded above our heads. I looked in the rear view mirror and saw a car behind me swerve to avoid the glass shards that had flown out of our car. We pulled off the highway and tried as best as we could to clean up the glass and we had to drive slowly home. We had some scratches but that is all. The car is still under warranty and Honda refused to replace the sunroof. Treated poorly by the dealer. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11774134

Incident

Oct 24, 2026

RE: XXX- Complaint # XXX for NHTSA Investigation EA25004 - Issues related to Auto Idle Stop - Battery & Starter failures. XXX - Complaint # XXXfor Honda Corporate asking to be part of extended warranty for TSB 23-008 and TSB 23-009 XXX - Ticket #XXX-Honda Cars of McKinney - reported continued issues with sluggish starts from HOT vehicle and failure of Auto Idle Stop/Restart * Asked for complete check of electrical system including battery, relays, starter and review of internal recalls, TSBs, and referenced NHTSA investigation EA25004. * Battery was replaced XXX at a cost of $402.08 and checked okay * Starter failed check with excessive resistance causing sluggish starts, and failure of Auto Idle Stop function to restart vehicle in traffic. Both the starter and relay assembly were replaced at a cost of $786.28. * Requested Honda Goodwill Assistance review as this is a known problem under Honda TSB 23-008 and 23-009 to cover these expenses outside the standard warranty. Hendricks Auto Group(McKinney) and Honda Corporate refused to apply the Goodwill Assistance so I had to pay out-of-pocket for a known issue for this model year vehicle. They claimed the original owner failed to bring the vehicle in for this work, and I as the second owner was basically a 'buyer beware' even though there was nothing reported on the CARFAX report. * I feel this is a safety issue Honda clearly knew about, and without the work done by the first owner, it exposed my family to a dangerous issue in that the car would fail to restart safely in traffic leaving us vulnerable to an accident and in [XXX] - road rage. Please add this additional information to my original complaint # XXX, dated XXX. Thank You, [XXX] - [XXX] [XXX] [XXX] - cell INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11772750

Incident

Oct 17, 2026

Automatic Stop/Start at idle control failed to Restart. Manual restarting of the engine blocked or delayed by the system at or in intersections or traffic delays causing danger of blocked traffic or collision. Local dealer has inspected and deemed the problem caused by the starter, but is not able to repair due to volume of incidents with other units. No System warnings we indicated. Multiple incidents over the last three weeks.

NHTSA ID

11770099

Incident

Sep 22, 2026

* Purchased this vehicle used from Eckert Hyundai-Denton Texas - mileage 45,835 * 2024 Honda Passport Blk Edition-VIN [XXX] mileage - 48,406 * Reference NHTSA EA25004, Honda Service Bulletin 23-008 1-Having issues with engine/idle/restart allowing vehicle to die at red lights and failing to restart(engine dying/difficult to restart). This caused the vehicle to die several times at a red light and we could not get it easily started again, resulting in traffic delays and very upset drivers behind me. Finally able to restart after several attempts. Have to disengage this feature each time we drive now. 2-Also having issues with what appeared to be weak or dying battery. 3- Took to Honda Cars of McKinney, they diagnosed with weak battery, and replaced it at a cost to me of $402.08 at mileage 46,868 on XXX. 4- I am still having issues with 'reluctant/slow to start' issues, and engine/idle/restart 5- I would like this to be included in NHTSA EA25004, issued XXX if possible. Thank you [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11768764

Incident

Aug 28, 2026

When we come to a stop position, the Fuel Savings Cut off does not start back up and the car stalls and shifts back to N. Takes for ever to re start if it can re start. This has happened to us more that 6 times. I took it this morning to Flow Honda of Charlottesville and talked to the service manager, Jackie. I felt like she thought I had three heads and didn't know what I was talking about, even though I enclosed a printed copy of the issues Honda was having with the Fuel Savings feature cut off.

NHTSA ID

11765085

Incident

Sep 16, 2026

Emergency braking engages with oncoming traffic and front rotors continually warp. Risking safety.

NHTSA ID

11760038

Incident

Aug 27, 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 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 Odysseys, Passports, and Ridgelines with a customer complaint of the brake pedal sticking or slow to return. This may result in delayed acceleration, dragging noise, or all 3 brake lights staying on without any pedal engagement. The vehicle may also experience issues with activating cruise control. To better understand the cause of this condition, AHM would like to inspect 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 Odysseys, Passports, and Ridgelines with a customer complaint of the brake pedal sticking or slow to return. This may result in delayed acceleration, dragging noise, or all 3 brake lights staying on without any pedal engagement. The vehicle may also experience issues with activating cruise control. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.