2020 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.

Multipurpose Camera Unit Failure, causing many warning symbols on dash.

NHTSA ID

11766111

Incident

Sep 20, 2026

Front facing camera fail. Causing brake system adaptive cruise control, lane keeping assist , collision mitigation, road departure mitigation. Auto high beams to not work

NHTSA ID

11765352

Incident

Aug 21, 2026

After previously reporting that a connecting rod bearing noise developed after the timing belt maintenance package was performed near 100,000 miles, the connecting rod bearings failed around 3,000 miles later while going down the interstate with children in the car. Thankfully the Pilot, which was shaking and making noise, was able to be pulled over to side of the interstate and later towed to the dealer service. No symptoms other than the noise at low speeds usually from take off, which regional Honda said wouldn’t damage anything, but apparently it did.

NHTSA ID

11763509

Incident

Jun 30, 2026

There is significant rust on the frame and undercarriage of the vehicle. There has been no actual safety concerns yet, but it may lead to severe issues if unaddressed. It has since an active recall exists for the corrosion of the rear subframe. A specific rust-related inspection is on hold until I receive further direction from the dealership I purchased the vehicle from.

NHTSA ID

11762227

Incident

Sep 4, 2026

The contact owns a 2020 Honda Pilot. The contact stated while driving at an undisclosed speed, the vehicle hesitated while accelerating and was shaking violently. The contact associated the failure with the transmission. The manufacturer was notified of the failure and offered a goodwill repair; however, the contact had not agreed to the terms. The vehicle was taken to the dealer and the dealer confirmed that the transmission needed to be replaced. The contact stated that prior to the transmission failure, the vehicle was taken to the dealer for the hesitation issue, and the dealer associated the failure with the transmission. The vehicle was not repaired for personal reasons.

NHTSA ID

11761242

Incident

May 13, 2024

I got in the car one morning and had 5 error codes come on and they have not gone off. None of the driver assist controls are working. The cruise control does not work either. All of the dash lights are on. Toyota determined it is the front camera that failed and repair would be $2000. Car is available for inspection anytime. Unable to drive for long periods as the cruise control does not work. The lane assist option does not work. The automatic break system does not work. Half of the option this car came with do not work.

NHTSA ID

11760834

Incident

Apr 8, 2026

While driving on my way home from work (24 mile drive) I received on my dashboard faults that flashed briefly for my steering, lane keeping assistance, lane departure, forward collision, automatic emergency braking, adaptive cruise control and parking collision (warning lamps). My radio also had cut out at the same time. While that occurred my steering wheel jerked suddenly while going straight at speeds around 60mph. I brushed it off as a communication issue since it is known to occur on these vehicles, but the steering wheel jerking was new to me. Made it home turned the vehicle off (vehicle was off for 15 minutes). I started up the vehicle no warning lamps came on. But as soon as I got up to 40mph and a mile from my home the same issue occurred but more frequent, but less of the steering wheel jerking. I got where I needed to go and got back onto the road and reached 30 mph the warning lamps came on more a lot more frequently on my way home. As soon as reached my alleyway turning left, the steering wheel had a moment of locking up (about 5-10mph). This came as a shock for me. I backed up into my garage and had to turn the steering wheel left again and the same thing happened. I parked the while the vehicle was running I turned the steering wheel really fast, recreated the steering wheel locking momentarily a few times. I turned the vehicle off and tried to restart it but there was no power. Turns out that my battery had gone bad. I had no indication of a low voltage or battery issue. I replaced the battery and issue was resolved. For me and a situationally unaware driver and this issue occurs where the steering wheel jerked and/or an emergency evasive action was needed, this could cause an accident due to the sudden loss of steering. There was no indication of battery issues. No dealer or independent shops were involved. I am a mechanic myself.

NHTSA ID

11760548

Incident

Aug 17, 2026

There's an old recall called FAKRA Service Cable Safety, Recall Number #23V-431, The recall issue was fixed, but it is now recurring. The cracking windshield sound, along with the screen shutting off or going blank, increases the risk of a crash or injury when backing up or driving while using the navigation system. We contacted Honda about this issue, but they don't seem keen on fixing it, especially now that it's out of warranty.

NHTSA ID

11759738

Incident

Jul 14, 2026

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.

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.