NHTSA owner reports · September 18, 2026 snapshot.
Forward Collision Avoidance complaints
19 reportsClear category filterMileage unknown · Sep 2, 2026
Forward Collision AvoidanceLane DepartureSteering
While driving to work this morning. Rate of speed under 45 mph with no apparent issues. Suddenly warning lights on the dash lit up and steering became difficult. Three separate information warnings: Lane Keeping assist problem, electric power steering problem, adaptive cruise control problem. I was able to continue to drive the …
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While driving to work this morning. Rate of speed under 45 mph with no apparent issues. Suddenly warning lights on the dash lit up and steering became difficult. Three separate information warnings: Lane Keeping assist problem, electric power steering problem, adaptive cruise control problem. I was able to continue to drive the 3 miles to work. Had to use 2 hands and pull hard on the steering wheel to pull into the parking lot from the street. Actually had to stop the car, turn it off and restart it just to get into a parking space. Turned engine off twice, both times all warning lights came back on on the dash when I restarted the car. I only have 29,043 miles on this vehicle. It was unsettling to find myself in an unsafe situation today.
NHTSA ODI #11761563
19,000 miles · Jul 24, 2026
Forward Collision Avoidance
The contact owns a 2023 Honda Pilot. The contact stated that while driving with the adaptive cruise control activated, the cruise control became inoperative after being used for a while. The message "Clean Radar Sensor" was displayed on the instrument panel. The failure had occurred on several occasions. The contact stated that …
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The contact owns a 2023 Honda Pilot. The contact stated that while driving with the adaptive cruise control activated, the cruise control became inoperative after being used for a while. The message "Clean Radar Sensor" was displayed on the instrument panel. The failure had occurred on several occasions. The contact stated that after the vehicle was turned off and restarted, the adaptive cruise control returned to normal operation. The vehicle was taken to a dealer, where it was diagnosed that the front radar needed to be realigned and the vehicle was repaired; however, the failure persisted. The vehicle was returned to the dealer, where it was diagnosed that the front radar unit needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was approximately 19,000.
NHTSA ODI #11752649
50,000 miles · May 11, 2026
Forward Collision Avoidance
The contact owns a 2023 Honda Pilot. The contact stated that while driving at an undisclosed speed, the brake pedal was unexpectedly engaged causing the vehicle to abruptly stop in ongoing traffic with no warning lights illuminated. The vehicle was taken to the dealer, where it was diagnosed that the front brake sensors had fail…
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The contact owns a 2023 Honda Pilot. The contact stated that while driving at an undisclosed speed, the brake pedal was unexpectedly engaged causing the vehicle to abruptly stop in ongoing traffic with no warning lights illuminated. The vehicle was taken to the dealer, where it was diagnosed that the front brake sensors had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred on multiple occasions. The vehicle was taken back to the dealer. The vehicle not diagnosed or repaired. The manufacturer was made aware of the failure, and multiple cases were opened. The contact expressed concern that the vehicle was hazardous to operate and that the failure could lead to a catastrophic crash. The contact also stated that the vehicle was unsafe to drive with the contact and the contact’s child inside. The failure mileage was approximately 50,000.
NHTSA ODI #11737129
Mileage unknown · Apr 6, 2026
Forward Collision AvoidanceCrash
Description: While using cruise control at highway speed and winter weather conditions, the cruise control system suddenly and unexpectedly disengaged without adequate warning. The vehicle experienced rapid deceleration and I lost control, resulting in multiple spins, a near collision with a truck, and impact with a curb before …
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Description: While using cruise control at highway speed and winter weather conditions, the cruise control system suddenly and unexpectedly disengaged without adequate warning. The vehicle experienced rapid deceleration and I lost control, resulting in multiple spins, a near collision with a truck, and impact with a curb before coming to stop. The vehicle sustained damage. Fortunately no one was not severely injured. History and safety concern This is not an isolated event. I have experienced similar, unexpected cruise control disengagements multiple times over the past year while driving under varied conditions. Each event has created a significant safety risk. The sudden, uncommanded disengagement at highway speed caused abrupt deceleration and loss of control, which presents a severe hazard to vehicle occupants and other road users. I have reported the issue to the manufacturer and requested a full diagnostic investigation, system data logs, root‑cause determination, and remediation (I am requesting replacement or buyback if a defect is confirmed). I have asked the manufacturer to escalate to a senior case manager/remediation team and to preserve all relevant data and parts. Requested NHTSA actions Open an ODI safety defect investigation into this vehicle model/series and the cruise control/ADAS/cruise‑control module behavior. Request preservation and production of all relevant manufacturer data, including ECU/ADAS event data recorder logs, telematics, software versions, diagnostic records, and any field complaints or warranty claims related to cruise control disengagements. Evaluate whether this is a systemic safety defect requiring recall, remedy, or other actions, and consider requiring manufacturer owner notification and appropriate remedies (repair, replacement, buyback) if a defect is confirmed. Provide guidance on any additional evidence or steps I should take to support the investigation.
NHTSA ODI #11729387
Mileage unknown · Oct 22, 2025
Electrical SystemForward Collision AvoidanceService Brakes
El carro tiene fallas con el sistema eléctrico de frenos y no arranca.
NHTSA ODI #11694899
Mileage unknown · Sep 23, 2025
Forward Collision AvoidanceService Brakes
While driving on U.S Highway 521 in South Carolina, the vehicle experienced SUDDEN, UNEXPECTED BRAKING AND VIOLENT SHAKING even though there were no cars or obstacles directly in front of me. The sensation was so strong it felt as if the car had been rear-ended, but there was no impact. The issue has happened MULTIPLE TIMES sinc…
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While driving on U.S Highway 521 in South Carolina, the vehicle experienced SUDDEN, UNEXPECTED BRAKING AND VIOLENT SHAKING even though there were no cars or obstacles directly in front of me. The sensation was so strong it felt as if the car had been rear-ended, but there was no impact. The issue has happened MULTIPLE TIMES since I purchased the vehicle new in 2023. Each time, traffic was flowing normally, and no immediate hazard was present. The closest car in front of me was several car lenghts away, yet the PILOT suddenly braked on its own. The problem appears to be linked to the COLLISION MITIGATION BRAKING SYSTEM or related driver-assist sensors, which seem to be misreading conditions and triggering false emergency braking. This defect creates a serious SAFETY HAZARD. The abrupt, forceful braking puts me and my family at risk of being rear-ended by following vehicles. It has also caused panic and near-miss incidents in traffic. I am filling this complaint to ensure it is formally documented and investigated as SAFETY DEFECT. This is a serious risk to DRIVER AND PASSENGERS and could lead to accidents. I am requesting NHTSA to investigate whether this defect affects other HONDA PILOT vehicles.
NHTSA ODI #11689161
Mileage unknown · Aug 1, 2025
Forward Collision Avoidance
Twice in the past week the collision mitigation braking system engaged without reason and the vehicle suddenly braked while I was driving
NHTSA ODI #11677888
Mileage unknown · Jul 29, 2025
Electrical SystemForward Collision AvoidanceService Brakes
7/25/2025 i was driving my wife’s pilot between 55 and 60 mph when the vehicle alerted me to several warnings and the braking system stuck at the top of the pedal not allowing the vehicle to slow in a construction zone. I was able to limp the vehicle home but the vehicle was extremely difficult to slow at red lights. The vehicle…
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7/25/2025 i was driving my wife’s pilot between 55 and 60 mph when the vehicle alerted me to several warnings and the braking system stuck at the top of the pedal not allowing the vehicle to slow in a construction zone. I was able to limp the vehicle home but the vehicle was extremely difficult to slow at red lights. The vehicle was towed from residence after sitting and the tow truck driver said the vehicle was not showing any warning signs. The dealership in paducah test drove the vehicle and did not see anything wrong with it. They subsequently checked and there was a diagnostic for brake booster failure. The vehicle has 41,000 miles on it. In addition it went to the dealership at 9,981 miles for electronic parking brake sticking and the ike dealership said there was nothing wrong. There are other reports of woners on youtube who have had this failure or similar with one member having to ditch the vehicle. I almost wrecked and hit a vehicle that slowed in front of me. The system thew error codes to include failure in electronic steering, transmission, hill descent, electronic braking, and others. I recorded the errors on the dash. This vehicle has also thrown airbag error with only a few thousand miles. The vehicle has side panels that have fallen off and and seals on the panoramic sunroof that have failed.
NHTSA ODI #11677041
Mileage unknown · Mar 12, 2025
Electrical SystemExterior LightingForward Collision Avoidance
While driving the pilot warning alerts popped up that none of the collision detection, lane assist, cruise control, and seemingly all radar related systems were working. Additionally, the headlights turned off. We have brought this to the Honda dealer on now three occasions, and there doesn’t seem to be any understanding of why …
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While driving the pilot warning alerts popped up that none of the collision detection, lane assist, cruise control, and seemingly all radar related systems were working. Additionally, the headlights turned off. We have brought this to the Honda dealer on now three occasions, and there doesn’t seem to be any understanding of why this is happening. On the evening of March 11 this issue happened again after the dealership having the car for a week to “fix “this problem and the lights turned off on an unlit road almost causing an accident. The car is again back at the dealer, who apparently is working with Honda again. I have seen this type of problem reported for other 2023 Honda vehicles, including the pilot, passport, and CRV on various Internet forums.
NHTSA ODI #11647933
Mileage unknown · Feb 10, 2025
Forward Collision AvoidanceService Brakes
Automatic Braking System (ABS) automatically applied brakes when I was 2 car lengths behind a vehicle that was turning and the sensor detected the vehicles brake lights. There was enough space between my vehicle and the one in front of me that was turning for me to stop if needed.
NHTSA ODI #11641765
Official recalls
5Jun 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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