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2021 Honda Pilot

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2021 Honda Pilot do not stand out strongly from the model-year median of 239.5.

About this comparison →

When problems were reported

Mileage at the reported incident

Limited mileage data: 44 of 432 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Electrical System. Review the 126 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 104 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Forward Collision Avoidance. Review the 98 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

12 crash reports1 fire reports7 injury reports

What owners actually said

432 reports
Mileage unknown · Feb 25, 2022
Forward Collision AvoidanceService Brakes

There have been several times the automatic braking assist has completely stopped the car. This has caused vehicles behind me to break hard almost causing accidents. I now disengage the automatic breaking assist when I use the car. I saw there were incidents with other Honda vehicles that didn't include the 2021 Honda Pilot w…

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There have been several times the automatic braking assist has completely stopped the car. This has caused vehicles behind me to break hard almost causing accidents. I now disengage the automatic breaking assist when I use the car. I saw there were incidents with other Honda vehicles that didn't include the 2021 Honda Pilot which I believe should be included. I have witnesses of the car breaking to a complete stop several times. Please investigate before more accidents happen with injuries. Thank you for your hard work involved.

NHTSA ODI #11454077

Mileage unknown · Feb 25, 2022
Forward Collision Avoidance

Automatic braking system is engaging when there is nothing in front of or near the vehicle. When driving on the highway it will engage, flash BRAKE on the front dash, and engage the brakes and slow WAY down while doing 60+ mph.

NHTSA ODI #11454040

Mileage unknown · Feb 25, 2022
Forward Collision AvoidanceService Brakes

Automatic braking system is engaging when there is nothing in front of or near the vehicle. When driving on the highway it will engage, flash BRAKE on the front dash, and engage the brakes and slow WAY down while doing 60+ mph.

NHTSA ODI #11454038

Mileage unknown · Feb 25, 2022
Forward Collision AvoidanceService Brakes

There have been multiple instances where the Automatic Braking system has engaged preventing me as the operator from making adjustments. I have almost been in 2 collisions due to this feature. The automatic braking system prevents me from making a correction and will automatically lock up the brakes and steering. Both times I…

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There have been multiple instances where the Automatic Braking system has engaged preventing me as the operator from making adjustments. I have almost been in 2 collisions due to this feature. The automatic braking system prevents me from making a correction and will automatically lock up the brakes and steering. Both times I have almost been rear ended due to this feature. There has been an instance where the braking feature engaged where there was no car in from of me but a car coming from the other lane and my Honda Pilot engaged the automatic braking system. Luckily there was no car behind me. This feature while could be useful is not in my opinion a safety feature but a safety hazard due to these multiple instances. This feature should be permanently disabled upon start up. Multiple times when I start the car I don't realize it is engaged until something happens.

NHTSA ODI #11453989

Mileage unknown · Feb 24, 2022
Forward Collision Avoidance

automatic brakes happened a couple time on highway for no reason. happened most in carpool lane and curve freeways

NHTSA ODI #11453937

Mileage unknown · Feb 24, 2022
Forward Collision AvoidanceService Brakes

My car has had the automatic emergency braking system kick in randomly at least 6 times since I bought it. No cars in front of me, nothing on the shoulder next to me. Twice when a car was in opposite direction lane but nowhere near the center line.

NHTSA ODI #11453811

Mileage unknown · Feb 16, 2022
Electrical SystemUnknown Or Other

Our Pilot is brand new - we started noticing popping and cracking sounds from the dashboard. It is pretty loud. We thought it was possibly the radio but it continues with the radio off. We thought it was the dashboard contracting/expanding but it happens in all weather. It has become increasing loud and consistent and now any so…

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Our Pilot is brand new - we started noticing popping and cracking sounds from the dashboard. It is pretty loud. We thought it was possibly the radio but it continues with the radio off. We thought it was the dashboard contracting/expanding but it happens in all weather. It has become increasing loud and consistent and now any sounds from the stereo, regardless of input, skip and glitch and we turn it off and the popping and cracking sound continues seemingly from the speakers. We took it to the dealership for repair but they said they can't repair it. This is not acceptable for a new car.

NHTSA ODI #11452304

Mileage unknown · Feb 6, 2022
Visibility/wiper

The entire rear windshield compeltely failed on us. Last night (02/06/21) when we we turned on our NEW 2021 Pilot and started exiting the garage, the rear windshield forcefully exploded! The ENTIRE windshield shattered to pieces. It seemed like someone shot at our windshield but no one was outside. The windshield was never cra…

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The entire rear windshield compeltely failed on us. Last night (02/06/21) when we we turned on our NEW 2021 Pilot and started exiting the garage, the rear windshield forcefully exploded! The ENTIRE windshield shattered to pieces. It seemed like someone shot at our windshield but no one was outside. The windshield was never cracked before either, it was a new car! There were kids in the back and it was a HUGE SAFTEY HAZARD. The glass pieces were everywhere. This couldve happened on the road as well but thankfully we were in the garage. This is totally unacceptable for a new car and surely there was a defect in the tampered glass developed hy Honda in the first place. We have done a previous service with Honda and Honda told us all is good. Honda must answer for this since this was a very dangerous situation and traumatizing for my kids.

NHTSA ODI #11450646

Mileage unknown · Jan 18, 2022
Visibility/wiper

Driver side vehicle outside rear view mirror has separated from its' underlying mounting plate, while still being attached by a heating wire connected to the back surface of the mirror. Therefore it has been vibrating such that rearward visibility has been severely compromised and places both us and others at risk. It has now …

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Driver side vehicle outside rear view mirror has separated from its' underlying mounting plate, while still being attached by a heating wire connected to the back surface of the mirror. Therefore it has been vibrating such that rearward visibility has been severely compromised and places both us and others at risk. It has now separated to the point that it is pulling out the wire and without tape will hang off it's housing. We have brought this issue to the attention of Hertrich Honda of Easton Md. as well as Honda. We are told by the dealer that this is a common issue on the Pilot and other models and that Honda has not provided a fix for the problem. In fact we are told by the dealer that there are no replacement components or mirrors available to fix the problem. Honda indicates that they are not aware of the problem. We have been addressing this problem with the dealer for over five months with no resolution. At this time the passenger side mirror is also vibrating severely but to our knowledge has not separated completely from the housing. We believe that this situation is very dangerous and seem not to be making progress in finding an acceptable resolution.

NHTSA ODI #11447919

Mileage unknown · Jan 17, 2022
Air Bags

Airbag light came ON at 45,000 miles approximately. Took the vehicle to dealership paid for a diagnosis just to be told that it is out of warranty that if I want it fixed had to pay out of pocket $531.69 for SRS unit, plus $1398.98 for a Seat Frame, plus $980.75 for Labor. I just got very surprised that the airbags (a safety f…

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Airbag light came ON at 45,000 miles approximately. Took the vehicle to dealership paid for a diagnosis just to be told that it is out of warranty that if I want it fixed had to pay out of pocket $531.69 for SRS unit, plus $1398.98 for a Seat Frame, plus $980.75 for Labor. I just got very surprised that the airbags (a safety feature) is part of the limited warranty. Since when the airbags apparently get worn out with mileage??? It is a safety concern.

NHTSA ODI #11447788

Official recalls

10

26V365000 · Structure:frame And Members; Suspension:rear

Jun 4, 2026

American Honda Motor Company (Honda) is recalling certain 2016-2022 Honda Pilot, 2017-2023 Ridgeline, 2019-2023 Passport, and 2014-2020 Acura MDX vehicles that were sold in Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin. The rear subframe may corrode at the suspension mounting points, which can result in rear suspension component failure.

Consequence & remedy

Consequence: Failure of rear suspension components, such as the rear control arm, can cause a loss of vehicle handling and control, increasing the risk of a crash or injury.

Remedy: Dealers will inspect the rear subframe and install a rear subframe reinforcement kit and, as necessary, repair or replace the rear subframe components, free of charge. Interim letters notifying owners of the safety risk were mailed July 27, 2026. Additional letters will be sent once the final remedy is available, anticipated in the fall of 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are AOU and AOT. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning June 10, 2026.

Additional source detail variants (2)

Suspension:rear

American Honda Motor Company (Honda) is recalling certain 2016-2022 Honda Pilot, 2017-2023 Ridgeline, 2019-2023 Passport, and 2014-2020 Acura MDX vehicles that were sold in Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin. The rear subframe may corrode at the suspension mounting points, which can result in rear suspension component failure.

Consequence: Failure of rear suspension components, such as the rear control arm, can cause a loss of vehicle handling and control, increasing the risk of a crash or injury.

Remedy: Dealers will inspect the rear subframe and install a rear subframe reinforcement kit and, as necessary, repair or replace the rear subframe components, free of charge. Interim letters notifying owners of the safety risk were mailed July 27, 2026. Additional letters will be sent once the final remedy is available, anticipated in the fall of 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are AOU and AOT. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning June 10, 2026.

Structure:frame And Members

American Honda Motor Company (Honda) is recalling certain 2016-2022 Honda Pilot, 2017-2023 Ridgeline, 2019-2023 Passport, and 2014-2020 Acura MDX vehicles that were sold in Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin. The rear subframe may corrode at the suspension mounting points, which can result in rear suspension component failure.

Consequence: Failure of rear suspension components, such as the rear control arm, can cause a loss of vehicle handling and control, increasing the risk of a crash or injury.

Remedy: Dealers will inspect the rear subframe and install a rear subframe reinforcement kit and, as necessary, repair or replace the rear subframe components, free of charge. Interim letters notifying owners of the safety risk were mailed July 27, 2026. Additional letters will be sent once the final remedy is available, anticipated in the fall of 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are AOU and AOT. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning June 10, 2026.

26V332000 · Air Bags:sensor:occupant Classification:front Passenger

May 21, 2026

Honda (American Honda Motor Co.) is recalling certain 2018-2021, 2023 Acura TLX, 2019-2024 RDX, 2017-2020, 2022-2026 MDX, 2017-2021, 2023, 2025 Honda Ridgeline, 2017-2022 Pilot, 2019-2021 Passport, 2018-2026 Odyssey, 2019-2022 Insight, 2019-2021 HR-V, 2018-2020 Fit, 2020-2022 CR-V Hybrid, 2017-2022 CR-V, 2017-2018, 2021 Civic Type R, 2017-2021 Civic hatchback, 2016-2020 Civic coupe, 2016-2022 Civic, 2017-2022 Accord Hybrid, and 2016-2022 Accord vehicles. The front passenger seat weight sensor may crack and short circuit, which can cause the air bags to deploy unintentionally during a crash.

Consequence & remedy

Consequence: Air bags that deploy unintentionally during a crash increase the risk of injury.

Remedy: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed July 7, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are BOL, WO9, OOA, WOM, XOH, NOC, POD, BOE, UOF, POB, EOG, AOI, QO8, TOJ, DO7, and SOK. This recall expands previous NHTSA recall number 24V064. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning May 29, 2026.

24V064000 · Air Bags:sensor:occupant Classification:front Passenger

Feb 1, 2024

Honda (American Honda Motor Co.) is recalling certain 2020-2022 Pilot, Accord, Civic sedan, HR-V, Odyssey, 2020 Civic coupe, Fit, 2021-2022 Civic hatchback, 2021 Civic Type R, Insight, 2020-2021 CR-V, CR-V Hybrid, Passport, Ridgeline, Accord Hybrid, 2020 Acura MDX, 2022 Acura MDX, 2020-2022 Acura RDX, and 2020-2021 Acura TLX vehicles. The front passenger seat weight sensor may crack and short circuit, failing to suppress the air bag as intended.

Consequence & remedy

Consequence: An air bag that deploys unintentionally during a crash can increase the risk of injury.

Remedy: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed March 28, 2024. This is a phased recall. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XHP and VHQ.

23V858000 · Fuel System, Gasoline:delivery:fuel Pump

Dec 18, 2023

Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. The fuel pump inside the fuel tank may fail.

Consequence & remedy

Consequence: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.

Remedy: Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KGC and KGD. This recall is an expansion of NHTSA recall numbers 21V-215 and 20V-314.

23V458000 · Service Brakes, Hydraulic:foundation Components:master Cylinder

Jun 29, 2023

Honda (American Honda Motor Co.) is recalling certain 2020-2021 Civic, 2020-2023 Ridgeline, 2021-2023 Passport, 2021-2022 Pilot, and 2020 Acura MDX vehicles. The tie rod fastener that connects the brake booster and the brake master cylinder may have been improperly assembled during manufacturing, which can cause the brake master cylinder to separate from the booster assembly.

Consequence & remedy

Consequence: Brake master cylinder separation can cause a loss of brake function and increase the risk of a crash.

Remedy: Dealers will inspect and repair the brake booster assembly as necessary, free of charge. Owner notification letters were mailed August 7, 2023. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are VEU, AEV, and ZET.

23V431000 · Back Over Prevention:display Function

Jun 15, 2023

Honda (American Honda Motor Co.) is recalling certain 2018-2023 Odyssey, 2019-2022 Pilot, and 2019-2023 Passport vehicles. Due to a faulty Media Oriented Systems Transport (MOST) communication coaxial cable connector, the rearview camera image may not appear on the display. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Consequence & remedy

Consequence: A rearview camera that does not display an image can reduce the driver's rear view, increasing the risk of a crash or injury.

Remedy: Dealers will replace the MOST cable harness and install a straightening cover over the vehicle cable connector, free of charge. Owner notification letters were mailed July 24, 2023. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are EEL, ZEM, and SFC.

23V174000 · Visibility:rearview Mirrors/devices:exterior

Mar 16, 2023

Honda (American Honda Motor Co) is recalling certain 2020-2021 Pilot and Ridgeline, and 2020-2022 Passport and Odyssey vehicles. The heating pads behind both side-view mirrors may not be bonded properly, allowing the mirror glass to detach. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Consequence & remedy

Consequence: Detached mirror glass can reduce driver visibility, increasing the risk of a crash.

Remedy: Dealers will replace both left and right side-view mirrors, free of charge. Owner letters were mailed January 17, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is FE5.

20V725000 · Tires

Nov 20, 2020

American Honda Motor Co. (Honda) is recalling certain 2021 Pilot vehicles equipped with Continental CrossContact LX Sport 245/50R20 102 H tires with DOT serial number A376 D3K9 2920 and mold numbers S-421920 and S-421921. The tires may have been cured for a time beyond the specification limits.

Consequence & remedy

Consequence: Over-cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash or injury.

Remedy: Honda will notify owners, and dealers will inspect all four tires and replace the tires that have the affected DOT serial number and mold number, free of charge. The recall began January 11, 2021. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is U8Y.

20V439000 · Back Over Prevention: Sensing System: Camera; Electrical System:software

Jul 28, 2020

Honda (American Honda Motor Co.) is recalling certain 2018-2020 Odyssey, 2019-2020 Passport, and 2019-2021 Pilot vehicles. Incorrect instrument panel control module software can cause the instrument panel to not display critical information, such as engine oil pressure, speedometer, and gear selector position until the next ignition cycle. Additionally, it can prevent the rearview camera image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 101, "Control and Displays" and 111, "Rearview Mirrors."

Consequence & remedy

Consequence: Operating a vehicle without a functioning instrument panel or rearview camera display increases the risk of a crash.

Remedy: Honda will notify owners, and dealers will reprogram the instrument panel control module software, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is T89.

Additional source detail variants (2)

Back Over Prevention: Sensing System: Camera

Honda (American Honda Motor Co.) is recalling certain 2018-2020 Odyssey, 2019-2020 Passport, and 2019-2021 Pilot vehicles. Incorrect instrument panel control module software can cause the instrument panel to not display critical information, such as engine oil pressure, speedometer, and gear selector position until the next ignition cycle. Additionally, it can prevent the rearview camera image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 101, "Control and Displays" and 111, "Rearview Mirrors."

Consequence: Operating a vehicle without a functioning instrument panel or rearview camera display increases the risk of a crash.

Remedy: Honda will notify owners, and dealers will reprogram the instrument panel control module software, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is T89.

Electrical System:software

Honda (American Honda Motor Co.) is recalling certain 2018-2020 Odyssey, 2019-2020 Passport, and 2019-2021 Pilot vehicles. Incorrect instrument panel control module software can cause the instrument panel to not display critical information, such as engine oil pressure, speedometer, and gear selector position until the next ignition cycle. Additionally, it can prevent the rearview camera image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 101, "Control and Displays" and 111, "Rearview Mirrors."

Consequence: Operating a vehicle without a functioning instrument panel or rearview camera display increases the risk of a crash.

Remedy: Honda will notify owners, and dealers will reprogram the instrument panel control module software, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is T89.

20V440000 · Back Over Prevention: Sensing System: Camera; Electrical System:software

Jul 28, 2020

Honda (American Honda Motor Co.) is recalling certain 2019-2021 Pilot, 2019-2020 Odyssey and 2019-2020 Passport vehicles. Incorrect central network software programming may cause several errors to occur that can delay or prevent the rearview camera image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rearview Mirrors."

Consequence & remedy

Consequence: A delayed or inoperative rearview camera display can reduce the driver's view of what is behind the vehicle, increasing the risk of a crash.

Remedy: Honda will notify owners that updated software is available. Owners have the option to either follow the mailed instructions to download and update the software for free, or visit a dealer to have the software update performed, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is Y7Y.

Additional source detail variants (2)

Back Over Prevention: Sensing System: Camera

Honda (American Honda Motor Co.) is recalling certain 2019-2021 Pilot, 2019-2020 Odyssey and 2019-2020 Passport vehicles. Incorrect central network software programming may cause several errors to occur that can delay or prevent the rearview camera image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rearview Mirrors."

Consequence: A delayed or inoperative rearview camera display can reduce the driver's view of what is behind the vehicle, increasing the risk of a crash.

Remedy: Honda will notify owners that updated software is available. Owners have the option to either follow the mailed instructions to download and update the software for free, or visit a dealer to have the software update performed, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is Y7Y.

Electrical System:software

Honda (American Honda Motor Co.) is recalling certain 2019-2021 Pilot, 2019-2020 Odyssey and 2019-2020 Passport vehicles. Incorrect central network software programming may cause several errors to occur that can delay or prevent the rearview camera image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rearview Mirrors."

Consequence: A delayed or inoperative rearview camera display can reduce the driver's view of what is behind the vehicle, increasing the risk of a crash.

Remedy: Honda will notify owners that updated software is available. Owners have the option to either follow the mailed instructions to download and update the software for free, or visit a dealer to have the software update performed, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is Y7Y.

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

1

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.