NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
12 reportsClear category filterMileage unknown · Jun 9, 2026
Fuel/propulsion SystemPower TrainUnknown Or Other
I am filing a safety complaint regarding a 2024 Honda Pilot Touring with approximately 46,000 miles. The exact component or system that failed is currently UNKNOWN. My best assessment is that this may involve the electrical system, powertrain, engine control/software system, charging system, Auto Idle Stop system, or another re…
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I am filing a safety complaint regarding a 2024 Honda Pilot Touring with approximately 46,000 miles. The exact component or system that failed is currently UNKNOWN. My best assessment is that this may involve the electrical system, powertrain, engine control/software system, charging system, Auto Idle Stop system, or another related vehicle control system. The vehicle is currently available for inspection upon request. The vehicle has had intermittent multiple warning lights appear on the dashboard. On June 7, 2026 around 9:00pm, while the vehicle was in Drive, the vehicle shut off/lost power. This created a serious safety risk because the vehicle was being operated when the shutdown/loss-of-power event occurred. I am concerned this could happen again while driving, including at freeway speeds or while transporting a child. The problem has not yet been reproduced or confirmed by the dealer. The vehicle was taken to a Honda authorized dealership for inspection. The dealership advised that the battery tested fine and that no diagnostic trouble codes were found so far. Diagnostics are still pending, and as of this complaint, no confirmed cause, diagnosis, or repair has been provided. The vehicle has not been inspected by police or insurance representatives. American Honda Motor Co. has been contacted, and a case has been opened regarding this concern. Warning lamps/symptoms did occur before the shutdown/loss-of-power event. The vehicle had intermittent multiple warning lights on the dashboard before/around the time of the incident. The warning lights first appeared on or around June 3, 2026. The shutdown/loss-of-power event occurred on or around June 7, 2026. I am requesting that NHTSA document this safety issue involving a 2024 Honda Pilot Touring shutting off/loss of power while in Drive with no confirmed diagnosis or repair at this time.
NHTSA ODI #11743002
Mileage unknown · Dec 29, 2025
EngineExterior LightingPower Train
My car stalled at a red light due to Auto Idle-Stop failure. It failed to restart, shifted itself to Neutral/Park, and the car was completely unresponsive for a minute. This is a huge safety hazard.
NHTSA ODI #11707440
20,000 miles · Dec 4, 2025
Forward Collision AvoidancePower Train
The contact owns a 2024 Honda Pilot. The contact stated that while driving approximately 75 MPH, the brakes inadvertently activated after passing a truck on the highway. The contact stated that the vehicle unexpectedly slowed down to 40 MPH. The contact stated that there was no warning light illuminated. The contact stated that …
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The contact owns a 2024 Honda Pilot. The contact stated that while driving approximately 75 MPH, the brakes inadvertently activated after passing a truck on the highway. The contact stated that the vehicle unexpectedly slowed down to 40 MPH. The contact stated that there was no warning light illuminated. The contact stated that while the accelerator pedal was depressed, there was an abnormal banging sound coming from under the floorboard. The contact pulled over and checked the vehicle, and saw a puddle of transmission fluid on the ground. The vehicle was towed to a dealer where it was diagnosed, and determined that the transmission needed to be replaced. The vehicle was not yet repaired. The contact stated that the inadvertent braking had occurred once before, but it was not as severe, and the vehicle was not diagnosed. During the first failure, there was no warning light illuminated. The manufacturer was not informed of the failure. The failure mileage was approximately 20,000.
NHTSA ODI #11702922
Mileage unknown · May 24, 2025
Power Train
Vehicle lags when trying to accelerate on to freeway or moving through intersection.
NHTSA ODI #11662927
Mileage unknown · Mar 29, 2025
Power Train
This 10 speed transmission is dangerous. It hesitates and jerks constantly. Both up and down shifts will hesitate or drop into gears. While at speeds under 50mph the car will lurch and rock back and forth with some shifts. I'm current on all recalls. Only 23,000 miles. I've taken it in to Honda and did a ride along with the tech…
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This 10 speed transmission is dangerous. It hesitates and jerks constantly. Both up and down shifts will hesitate or drop into gears. While at speeds under 50mph the car will lurch and rock back and forth with some shifts. I'm current on all recalls. Only 23,000 miles. I've taken it in to Honda and did a ride along with the tech and he felt it too, but until there is a check engine light, theres nothing they can do to help me. This is a wide spread issue among owners when you search forums. Please look into this issue and push Honda to release a software update.
NHTSA ODI #11651518
Mileage unknown · Dec 10, 2024
Power Train
See attached document for complaint.
NHTSA ODI #11629820
Mileage unknown · Nov 19, 2024
EnginePower Train
When shifting from 1st to 2nd gear, the motor dips in RPM's then speeds up quickly. I now have 5000 miles on the vehicle and it is still happening. It's a safety hazard that the Honda Service Dept says is normal. On many quorum's, many people are complaining about the same problem. My local mechanic says that the electronic sequ…
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When shifting from 1st to 2nd gear, the motor dips in RPM's then speeds up quickly. I now have 5000 miles on the vehicle and it is still happening. It's a safety hazard that the Honda Service Dept says is normal. On many quorum's, many people are complaining about the same problem. My local mechanic says that the electronic sequence of the transmission needs refreshed but has to wait for a Honda Repair Directive. Others have said that this issue is in one in three Honda Pilots with 10 speed transmissions.
NHTSA ODI #11626090
Mileage unknown · Sep 11, 2024
EnginePower Train
When pushing the accelerator there is typically anywhere from a 2 to 5 second delay before the vehicle starts to move. On average the delay is around 2 seconds, but there have been times where trying to pull into traffic the vehicle would not move for approximately 4 to 5 seconds creating a hazard. When the care is moving at h…
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When pushing the accelerator there is typically anywhere from a 2 to 5 second delay before the vehicle starts to move. On average the delay is around 2 seconds, but there have been times where trying to pull into traffic the vehicle would not move for approximately 4 to 5 seconds creating a hazard. When the care is moving at higher speeds, the acceleration and gas pedal response is accurate, this only occurs when at a stand still or at very slow speeds. I have taken the car to the dealership to be evaluated and they informed me that the vehicle is operating as it is intended to and the delay is normal. I believe that this acceleration delay is inevitably going to cause an accident because it is difficult to gauge when the care is going to begin moving due to the inconsistent acceleration issue.
NHTSA ODI #11613919
Mileage unknown · Aug 24, 2024
EnginePower Train
When transmission is in "Normal" operating mode and starting to move, it has a hesitation when shifting from 1st to 2nd gear, then the motor races and the vehicle lunges forward. I have taken it to the dealership but they said they found nothing wrong. The problem is worse when the motor is cold but it happens at any motor tempe…
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When transmission is in "Normal" operating mode and starting to move, it has a hesitation when shifting from 1st to 2nd gear, then the motor races and the vehicle lunges forward. I have taken it to the dealership but they said they found nothing wrong. The problem is worse when the motor is cold but it happens at any motor temperature. I have read about many, many people having this problem.
NHTSA ODI #11610600
Mileage unknown · Aug 5, 2024
Fuel/propulsion SystemPower TrainService Brakes
DRIVING AT 45MPH OPEN HIGHWAY MANY PROBLEMS START APPEARING ON DRIVERS SCREEN ,BRAKINGSYSTEM, PROBLEMS WITH ALL SAFTY SYSTEMS, COMPUTER POSTING ALL KINDS OF PROBLEMS , ENGINESHAKING WOULD NOT ACCELERATE. CAR TOWED TO DEALER ON FRIDAY 8/2 AS OF 8/5 12 NOON IT IS STILL AT DEALER , MORRISTOWN TN HONDA FORTUNATELY A SFE PLACE TO PU…
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DRIVING AT 45MPH OPEN HIGHWAY MANY PROBLEMS START APPEARING ON DRIVERS SCREEN ,BRAKINGSYSTEM, PROBLEMS WITH ALL SAFTY SYSTEMS, COMPUTER POSTING ALL KINDS OF PROBLEMS , ENGINESHAKING WOULD NOT ACCELERATE. CAR TOWED TO DEALER ON FRIDAY 8/2 AS OF 8/5 12 NOON IT IS STILL AT DEALER , MORRISTOWN TN HONDA FORTUNATELY A SFE PLACE TO PULL OUT OF RD WAS AVAILABLE NO EARLY WARNING OF ANYTHING. HAVE NO KNOWLEDGE OF DEALER FINDINGS AT THIS POINT
NHTSA ODI #11606466
Official recalls
6Jan 29, 2026
Honda (American Honda Motor Co.) is recalling certain 2023 Honda Accord, Accord Hybrid, and 2024 HR-V, Pilot, and Acura Integra vehicles. The driver's seat cushion frame may not have been tightened properly, which can result in a loose seat. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 207, "Seating Systems."
Consequence & remedy
Consequence: A loose driver's seat may not adequately restrain the driver during a crash, increasing the risk of injury.
Remedy: Dealers will replace the driver's seat cushion frame, free of charge. Owner notification letters were mailed March 10, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are ONC, KND, BNE and ZNF. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning February 5, 2026. This recall expands previous NHTSA recall number 24V859.
Jun 12, 2025
Honda (American Honda Motor Co.) is recalling certain 2021-2025 Acura TLX, 2023-2025 Acura MDX, and 2023-2025 Honda Pilot vehicles. The brake pedal pivot pin was not secured properly, which can cause the pedal to shift out of position. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard numbers 108, "Lamps, Reflective Devices, and Associated Equipment" and 135, "Light Vehicle Brake Systems."
Consequence & remedy
Consequence: A brake pedal that shifts out of position can prevent the driver from applying the brakes as intended, increasing the risk of a crash or injury.
Remedy: Dealers will inspect and replace the brake pedal assembly as necessary, free of charge. Owner notification letters were mailed July 29, 2025. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are FLX and XLY.
Jan 23, 2025
Honda (American Honda Motor Co.) is recalling certain 2022-2025 Acura MDX Type-S, 2023-2025 Honda Pilot, and 2021-2025 Acura TLX Type-S vehicles. A software error in the fuel injection electronic control unit (FI-ECU) may cause an engine stall or a loss of power.
Consequence & remedy
Consequence: An engine stall or loss of power can increase the risk of a crash or injury.
Remedy: Dealers will reprogram the FI-ECU software, free of charge. Owner notification letters were mailed March 17, 2025. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are EL1 and AL0.
Additional source detail variants (2)
Electrical System:software
Honda (American Honda Motor Co.) is recalling certain 2022-2025 Acura MDX Type-S, 2023-2025 Honda Pilot, and 2021-2025 Acura TLX Type-S vehicles. A software error in the fuel injection electronic control unit (FI-ECU) may cause an engine stall or a loss of power.
Consequence: An engine stall or loss of power can increase the risk of a crash or injury.
Remedy: Dealers will reprogram the FI-ECU software, free of charge. Owner notification letters were mailed March 17, 2025. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are EL1 and AL0.
Fuel System, Gasoline:fuel Injection System
Honda (American Honda Motor Co.) is recalling certain 2022-2025 Acura MDX Type-S, 2023-2025 Honda Pilot, and 2021-2025 Acura TLX Type-S vehicles. A software error in the fuel injection electronic control unit (FI-ECU) may cause an engine stall or a loss of power.
Consequence: An engine stall or loss of power can increase the risk of a crash or injury.
Remedy: Dealers will reprogram the FI-ECU software, free of charge. Owner notification letters were mailed March 17, 2025. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are EL1 and AL0.
Nov 27, 2024
Honda (American Honda Motor Co.) is recalling certain 2023-2024 Passport and 2023-2025 Pilot vehicles. The fuel filler neck tube and fuel filler pipe may separate, allowing fuel to leak.
Consequence & remedy
Consequence: A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy: Dealers will inspect and repair the fuel filler neck tube and pipe as necessary, free of charge. Owner notification letters were mailed January 7, 2025. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is OKM.
Nov 14, 2024
Honda (American Honda Motor Co.) is recalling certain 2023-2024 Honda Accord, Accord Hybrid, Civic Sedan, Civic Hatchback, Pilot, and 2024 HR-V, Acura Integra and Acura Integra Type S vehicles. The driver's seat cushion frame may not have been tightened properly, which can result in an unsecured seat. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 207, "Seating Systems."
Consequence & remedy
Consequence: An unsecured driver's seat may not adequately restrain the driver during a crash, increasing the risk of injury.
Remedy: Dealers will replace the driver's seat cushion frame, free of charge. Owner notification letters were mailed January 6, 2025. Owners may contact Honda customer service at 1-888-234-2138.
Nov 2, 2023
Honda (American Honda Motor Co.) is recalling certain 2023-2024 Pilot vehicles. Due to a manufacturing error, the gear box assembly may contain a loose ball bearing, which can result in a loss of steering control or steering lock-up.
Consequence & remedy
Consequence: A loss of steering control or steering lock-up can increase the risk of a crash.
Remedy: Dealers will replace the electric power steering rack, free of charge. Owner notification letters were mailed December 18, 2023. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is FFX.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2PE25017 · Inaccurate Rear Passenger Seat Belt Warning Status
Opened Oct 28, 2025 · No close date supplied
Status: open (inferred from source dates) · Seat Belts; Seat Belts:rear/other; Seat Belts:status Indicator Switch
The Office of Defects Investigation (ODI) has received 6 complaints, and multiple Early Warning Reporting (EWR) field reports alleging inaccurate rear seat belt warning status. These allegations concern both false positive and false negative statuses in model year (MY) 2023-2024 Honda Pilot vehicles manufactured by American Honda Motor Co. (Honda). The complaints state that the rear passenger seat belt warning system is displaying inaccurate information to the driver for both second and third row seating positions. This can lead to the driver dismissing warnings regarding rear seat belt status. The inaccurate information can also cause the driver to believe rear occupants are buckled when they are not. This reliance on false information presents concerns for the safety of children and child seats located in the rear rows, especially in the third row where the buckled status is more difficult for the driver to visually confirm. ODI is opening this Preliminary Evaluation (PE) to determine 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.
Additional source detail variants (3)
Seat Belts
The Office of Defects Investigation (ODI) has received 6 complaints, and multiple Early Warning Reporting (EWR) field reports alleging inaccurate rear seat belt warning status. These allegations concern both false positive and false negative statuses in model year (MY) 2023-2024 Honda Pilot vehicles manufactured by American Honda Motor Co. (Honda). The complaints state that the rear passenger seat belt warning system is displaying inaccurate information to the driver for both second and third row seating positions. This can lead to the driver dismissing warnings regarding rear seat belt status. The inaccurate information can also cause the driver to believe rear occupants are buckled when they are not. This reliance on false information presents concerns for the safety of children and child seats located in the rear rows, especially in the third row where the buckled status is more difficult for the driver to visually confirm. ODI is opening this Preliminary Evaluation (PE) to determine 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.
Seat Belts:rear/other
The Office of Defects Investigation (ODI) has received 6 complaints, and multiple Early Warning Reporting (EWR) field reports alleging inaccurate rear seat belt warning status. These allegations concern both false positive and false negative statuses in model year (MY) 2023-2024 Honda Pilot vehicles manufactured by American Honda Motor Co. (Honda). The complaints state that the rear passenger seat belt warning system is displaying inaccurate information to the driver for both second and third row seating positions. This can lead to the driver dismissing warnings regarding rear seat belt status. The inaccurate information can also cause the driver to believe rear occupants are buckled when they are not. This reliance on false information presents concerns for the safety of children and child seats located in the rear rows, especially in the third row where the buckled status is more difficult for the driver to visually confirm. ODI is opening this Preliminary Evaluation (PE) to determine 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.
Seat Belts:status Indicator Switch
The Office of Defects Investigation (ODI) has received 6 complaints, and multiple Early Warning Reporting (EWR) field reports alleging inaccurate rear seat belt warning status. These allegations concern both false positive and false negative statuses in model year (MY) 2023-2024 Honda Pilot vehicles manufactured by American Honda Motor Co. (Honda). The complaints state that the rear passenger seat belt warning system is displaying inaccurate information to the driver for both second and third row seating positions. This can lead to the driver dismissing warnings regarding rear seat belt status. The inaccurate information can also cause the driver to believe rear occupants are buckled when they are not. This reliance on false information presents concerns for the safety of children and child seats located in the rear rows, especially in the third row where the buckled status is more difficult for the driver to visually confirm. ODI is opening this Preliminary Evaluation (PE) to determine 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.
EA25004 · No Restart After Auto Start/stop Engages
Opened Mar 26, 2025 · No close date supplied
Status: open (inferred from source dates) · Engine And Engine Cooling:engine; Engine And Engine Cooling:engine:crank/camshaft Position Sensor; Engine And Engine Cooling:engine:engine Control Module (ecu/ecm):software; Engine And Engine Cooling:engine:hard Parts Internal/mechanical
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.
Additional source detail variants (4)
Engine And Engine Cooling:engine:crank/camshaft Position Sensor
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.
Engine And Engine Cooling:engine:engine Control Module (ecu/ecm):software
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.
Engine And Engine Cooling:engine:hard Parts Internal/mechanical
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.
Engine And Engine Cooling:engine
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.
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