2019 Honda Pilot

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 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.

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 Preliminary Evaluation is being upgraded to an Engineering Analysis, EA25004, to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope for the Engineering Analysis 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 campaigns. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

Frequent struggles/failures to restart engine from the auto idle start/stop feature engaging. Multiple times, despite top of the line battery with AGM have even failed to restart the car and that is with a battery being than a year old. Wife and children have been stranded at a light in the middle lane of a busy roadway, intersection and at work. These issues also occur from cold starts, again, with newer batteries + AGM at just about the 1 year mark each year. Costs, risks, inconvenience that have been present year after year. We MUST disengage the auto idle feature manually every time we enter the car or else we are at risk for our safety or at the least a costly/frustrating series of events to restore the situation.

NHTSA ID

11775586

Incident

Nov 3, 2026

Vehicle went into limp mode. Engine had P0369 code for the camshaft position sensor. Timing belt kit is now getting serviced. The camshaft position switch needs replaced. Lastly the bank 1 camshaft needs to be replaced due to excessive play. Seems to be a manufacturer issue and is a safety issue because the vehicle went into limp mode up a hill in traffic.

NHTSA ID

11774629

Incident

Oct 27, 2026

While driving my 2019 Honda Pilot at highway speeds 70 mph, the dashboard suddenly displayed a severe safety warning stating "Transmission Temp Too Hot." There was no prior warning, mechanical symptom, or heavy cargo towing to cause this. The sudden warning forced me to immediately navigate across multiple lanes of fast-moving traffic to pull onto the shoulder of the highway, creating an immediate and dangerous crash hazard. This is a severe mechanical failure that occurs without reason under standard driving conditions, heavily compromising vehicle reliability and occupant safety on the highway. The vehicle has been exclusively and regularly maintained at an authorized Honda dealership according to all factory recommendations. The sudden transmission overheating and subsequent safety hazard occurred despite flawless maintenance compliance, proving this is a severe manufacturing or chemical fluid defect and not a case of owner neglect.

NHTSA ID

11774569

Incident

Oct 21, 2026

I opened case #XXX with Honda Motor Co. regarding a fuel-injector issue with my 2019 Honda Pilot AWD. At approximately 32,725 miles, the check-engine light came on. A diagnostic scan displayed code P219A, which was later confirmed by an authorized Honda dealer in [XXX]. Based on my understanding, Honda Technical Service Bulletin (TSB) 21-010 addresses this issue in 2018–2019 Honda Pilot vehicles. However, both Honda Motor Co. and the dealer denied coverage, stating that my vehicle’s VIN is not included under the bulletin. The dealer initially told me there was a 99% chance the repair would be covered, but the following morning I was informed that my VIN did not qualify. Honda also declined to cover the repair as a goodwill adjustment. Instead, Honda offered approximately $400 toward the repair cost without acknowledging that the underlying problem was a Honda-related defect. I declined the offer because I believe Honda should accept responsibility for the issue and cover the full cost of the repair. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11774455

Incident

Oct 14, 2026

Due to the failure of the U 3000–49 Integrated driver sport system Multipurpose camera unit millimeter Wave radar, internal electronic failure there was a near miss when a vehicle Crossed over in front of me at a close proximity. The vehicle has been inspected by the dealership and the U 3000–49 code appeared as a permanent malfunction on the front camera

NHTSA ID

11774221

Incident

Oct 22, 2026

The contact owns a 2019 Honda Pilot. The contact stated that while operating the vehicle, the message "Collision Migration Failure" remained displayed. The vehicle was taken to the local dealer to be diagnosed, and the contact was informed that the front windshield camera needed to be replaced. The failure mileage was 103,000.

NHTSA ID

11774215

Incident

Aug 2, 2026

Mileage

103,000 mi

Car stalled when engine auto idle was engaged after stopping at a stop light. This problem was “fixed” in May 2026 but had started occurring again.

NHTSA ID

11774113

Incident

Oct 27, 2026

The contact owns a 2019 Honda Pilot. The contact received notification of NHTSA Campaign Number: 26V365000 (Structure, Suspension); however, the part to do the recall repair was not yet available. The dealer was contacted. The dealer confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.

NHTSA ID

11774025

Incident

Oct 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.

Service Bulletin - The wireless charger starts charging the phone and then stops charging, even when the phone remains in the correct position on the charger due to software specifications that can cause some phones to have issues charging.

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2025 Passport Blacks, TrailSports & 2019-2022 Pilots with a customer complaint of the taillight and/or brake light being inoperative. Vehicles may also have the A6 10A or C27 7.5A fuse blown. 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 2022-2025 Passport Blacks, TrailSports & 2019-2022 Pilots with a customer complaint of the taillight and/or brake light being inoperative. Vehicles may also have the A6 10A or C27 7.5A fuse blown. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.

Service Bulletin - One or more accessory running board lights are flickering or not working due to a faulty running board light assembly.