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2021 Honda Passport

Owner reports · Recalls · Investigations

More warning signs than most Passport years

Owner complaints for the 2021 Honda Passport are substantially higher than the model-year median of 60.

About this comparison →

When problems were reported

Mileage at the reported incident

Limited mileage data: 18 of 140 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.

  • Forward Collision Avoidance. Review the 51 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 26 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 24 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

10 crash reports0 fire reports3 injury reports

Unknown Or Other complaints

12 reports
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Mileage unknown · Aug 14, 2026
Unknown Or Other

Shortly after purchasing my 2021 Honda Passport Elite, I experienced issues with the Auto Start/Stop feature. Once engaged, my vehicle was very sluggish when restarting after a complete stop. Had the issue checked every time I went in for service at my dealership with no problems detected. I have had a new battery installed w…

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Shortly after purchasing my 2021 Honda Passport Elite, I experienced issues with the Auto Start/Stop feature. Once engaged, my vehicle was very sluggish when restarting after a complete stop. Had the issue checked every time I went in for service at my dealership with no problems detected. I have had a new battery installed within the last year. In the last week, I have had 2 separate incidents where my vehicle completely shut down when I stopped at stop signs. The dash went black and steering wheel was extremely stiff. Other vehicles had to wait behind me for a couple of minutes until I was able to restart my vehicle. I had my battery, alternator and starter checked with all of them passing. Now when I drive, I turn off the Auto start/stop so I don't cut off in traffic. This is a problem.

NHTSA ODI #11757066

Mileage unknown · Aug 11, 2026
Unknown Or Other

The power door-lock system on my 2021 Honda Passport malfunctions while the vehicle is moving. When I make a right turn, the doors unexpectedly unlock, the interior dome light comes on, and I hear the door-unlocking sound. The doors do not physically open, but I must manually lock them again while driving. The problem occurs rep…

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The power door-lock system on my 2021 Honda Passport malfunctions while the vehicle is moving. When I make a right turn, the doors unexpectedly unlock, the interior dome light comes on, and I hear the door-unlocking sound. The doors do not physically open, but I must manually lock them again while driving. The problem occurs repeatedly during right turns. This malfunction creates a safety risk because the vehicle’s doors unlock unexpectedly while it is in motion, including when young children are passengers. The vehicle is available for inspection. I reported the issue to a Honda dealer, but the dealer requested a $199 diagnostic fee and has not yet diagnosed or repaired the problem. No crash or injury has occurred.

NHTSA ODI #11756143

Mileage unknown · Mar 19, 2026
Forward Collision AvoidanceService BrakesUnknown Or Other

I purchased a used 2021 Passport the end of May 2025. While driving, the 'collision mitigation braking system' or CMBS would activate the braking system and would intermittently just brake, causing panic for not only myself, but I'm sure drivers behind me for suddenly braking with no imminent threat in from of me. This happene…

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I purchased a used 2021 Passport the end of May 2025. While driving, the 'collision mitigation braking system' or CMBS would activate the braking system and would intermittently just brake, causing panic for not only myself, but I'm sure drivers behind me for suddenly braking with no imminent threat in from of me. This happened multiple times without receiving any warning or notifications, just suddenly. It would happen without warning, or sometimes nearing a bridge or a cover plate on the road, which almost caused accidents multiple times to get rear ended. I have driven for decades and never felt anxiety until I drove this vehicle for a few months. I felt scared driving this vehicle, feeling uncertain when it would suddenly just brake. Eventually after a few months of driving, I got a reading that said CMBS problem on the screen. I scheduled an appointment with the dealer. The dealer suggested a near $3000 replacement for a camera (on a 2021 vehicle). At the appointment, I ultimately returned this vehicle to the dealer where I bought it and unfortunately lost out on thousands of dollars after having the vehicle about 6 months. I have always liked Honda, and have had 2 prior Hondas, but with this vehicle purchase, I felt the most unsafe I have ever felt in a vehicle, and moving forward will not feel comfortable purchasing Honda.

NHTSA ODI #11725679

Mileage unknown · Oct 7, 2025
Electrical SystemEngineUnknown Or Other

To preface: All of these issues only occur when the engine idle feature is on. I have not experienced any of these problems when the feature is off. Question #1: When I release the brake with the engine idle on, the vehicle will sometimes completely shut off. When this happens, the steering wheel and brakes lock up, and I am un…

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To preface: All of these issues only occur when the engine idle feature is on. I have not experienced any of these problems when the feature is off. Question #1: When I release the brake with the engine idle on, the vehicle will sometimes completely shut off. When this happens, the steering wheel and brakes lock up, and I am unable to restart the vehicle for at least 60 seconds. Question #2: On one occasion, my wife, our 8-month-old child, and I were stuck at a green light for about 60 seconds while unable to restart the vehicle. Cars were passing by at over 50 mph, and we were relying on other drivers to notice us in time. This situation has happened multiple times and poses a serious safety risk to both us and others on the road. Question #3: I have not taken the vehicle in for service because the issue is difficult to reproduce consistently. That uncertainty is part of the problem, along with the anxiety of not knowing whether the car will suddenly shut off. Question #4: For the same reason, I have not been able to demonstrate the problem on demand. However, the main concern is that I should not have to worry about my vehicle stalling when I go to accelerate. Question #5: The vehicle has completely shut off four separate times over the past year. On one occasion, after releasing the brake, the engine struggled to reach normal RPMs and the check engine light came on. I pulled over, turned the vehicle off, restarted it, and it seemed fine afterward, although it had noticeably less power while the check engine light was on. Lastly, there have been several instances where the engine did not completely shut off when the idle feature was on, but when I released the brake to accelerate, I heard a clicking sound and the vehicle seemed as though it was about to stall. It then resumed operation normally as the idle system re-engaged. Since this happens intermittently, it has been difficult to recreate during a diagnostic inspection.

NHTSA ODI #11691991

Mileage unknown · Sep 4, 2025
Unknown Or Other

my vehicle shut off during idle for energy compensation. It failed to restart and allow the vehicle to be in drive causing the car to stall out and not turn back on.

NHTSA ODI #11685164

Mileage unknown · May 8, 2025
Unknown Or Other

2021 car manufactured. 10/2022 car purchased used/certified from Honda dealer. 12/10/2023 Car would not start. All lights not working. Called roadside assistance. While waiting, approximately 30 minutes later, tried starting the vehicle and it started. 12/11/2023 Took the car to the dealership, still under warranty, dealership…

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2021 car manufactured. 10/2022 car purchased used/certified from Honda dealer. 12/10/2023 Car would not start. All lights not working. Called roadside assistance. While waiting, approximately 30 minutes later, tried starting the vehicle and it started. 12/11/2023 Took the car to the dealership, still under warranty, dealership replaced the battery 5/6/2025 car would not start. Waited approximately 10 minutes, tried starting the vehicle and it started. Dashlights were working, batter light did not come on. 5/6/2025 Took car to the dealership, battery not under warranty. was told they would replace the battery for $400-$500 or I could have a diagnosis performed for $150. I declined both because it has only been 1 year and 5 months since the battery had been replaced. I feel like its another issue and it should be looked into for free. The manager would not meet my request. I left. 5/7/2025 Spoke with another manager at the dealership. Explained the situation. Was told I could bring the car in for a battery test for free. I declined because I didn't want to purchase a battery or other services from the dealership at potentially higher cost than a don-dealership mechanic. 5/8/2025 Brought car to local mechanic. Battery test performed, cranking/starter test performed. Both were in normal ranges. I did not receive any other service at the mechanic. Approx 1/2024 stopped using the auto-idle stop feature due to feeling unsafe at stop lights. Occassionally, when auto-idle goes off then restarts the car feels like it is struggling to restart and dashlights briefly dim. I now manually turn off this feature each time I drive. These problems have been reported to the dealership, Holler Honda. The problems have not been reproduced or confirmed at the dealership because they have only happened twice. The vehicle has not been inspected other than during recalls and oil changes. No warning lamps or messages have appeared.

NHTSA ODI #11659804

Mileage unknown · Apr 17, 2024
Forward Collision AvoidanceUnknown Or Other

The emergency collision system constantly actives when there is no need for it to activate. It’s more of a safety hazard. I have just under 40 years of driving experience, former mechanic, and police officer for over 20 years. My professional opinion is, Honda needs to correct this problem. Thanks.

NHTSA ODI #11583605

Mileage unknown · Feb 24, 2024
Electrical SystemUnknown Or Other

I purchased my vehicle in August 2023 (used). Phone calls (both through using CarPlay and with the phone unplugged and with genuine cables) sound terrible on the part of the recipient. We replaced the FAKRA cables and harness late last year and just replaced the microphone (and I got charged a diagnosis fee). The issue is contin…

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I purchased my vehicle in August 2023 (used). Phone calls (both through using CarPlay and with the phone unplugged and with genuine cables) sound terrible on the part of the recipient. We replaced the FAKRA cables and harness late last year and just replaced the microphone (and I got charged a diagnosis fee). The issue is continuing. It's gotten so bad that I have to use my AirPods to make any calls for my recipient to hear anything I'm saying (which is illegal in my state and should not be a requirement in a car that is less than 3 years old). I've dug in to forums and this is a common issue for the EX-L trim level in the 2021 model. Additionally, this can impact the backup camera and other lane keeping assist issues. I have factory reset it multiple times and it's still having similar issues.

NHTSA ODI #11573757

Mileage unknown · Oct 9, 2023
Forward Collision AvoidanceService BrakesUnknown Or Other

When the passport is in cruise control I have been driving up a very steep mountain and have had the car slam on brakes with no indication to the cars behind me or me intially causing everyone to come to a halt going up a mountain with a 9% incline. I realize you can adjust the distance but it still gives no warning and it is n…

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When the passport is in cruise control I have been driving up a very steep mountain and have had the car slam on brakes with no indication to the cars behind me or me intially causing everyone to come to a halt going up a mountain with a 9% incline. I realize you can adjust the distance but it still gives no warning and it is not as if you are tailo the car in front. I turn in my subdivision daily and if I let off the gas which I have to I the neighborhood and not have to break at five or ten mph something underneath feels as if it is catching like a bike break too close it scrubs. The final thing. I have started the car remotely many times. I have done it twice in parking lots and it has jumped forward . Had someone been in from of the car standing it jumped hard enough to hit someone. Or it the car facing mine had been closer it would have hit that car as well. Thank you

NHTSA ODI #11549092

Mileage unknown · Aug 22, 2023
Forward Collision AvoidanceSteeringUnknown Or Other

Forward Collision Warning (FCW): At random intervals, the FCW will give a false positive warning of an imminent collision with a car approaching from the opposite direction. This has occurred at various times over the past 2+ years. Comments to this effect to the Honda service representatives have indicated that this anomaly has…

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Forward Collision Warning (FCW): At random intervals, the FCW will give a false positive warning of an imminent collision with a car approaching from the opposite direction. This has occurred at various times over the past 2+ years. Comments to this effect to the Honda service representatives have indicated that this anomaly has been reported previously. They have not provided a fix or software update to correct this issue. The event is a safety issue because of the distraction from focusing on the road ahead. Although the automatic braking system has not been employed, the driver may in response to the false warning apply the brakes and cause an accident inadvertently.

NHTSA ODI #11540126

Official recalls

7

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.

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

3

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.

EA25002 · Inadvertent Automatic Emergency Braking

Opened Jan 17, 2025 · No close date supplied

Status: open (inferred from source dates) · Forward Collision Avoidance: Automatic Emergency Braking

On March 7, 2024, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE24008) to assess reports of inadvertent activation of the Automatic Emergency Braking (AEB) system in model year 2019-2022 Honda Insight and 2019-2022 Honda Passport vehicles. The complainants allege activation of the AEB system with no apparent obstruction in the vehicle's path, resulting in rapid vehicle deceleration. Honda indicated that it is aware of a total of 412 reports that may relate to the alleged defect. Honda provided analysis of the alleged defect and stated that some customers possibly had an inadequate understanding of the AEB system and its limitations. However, many consumer complaints received by ODI allege that Honda dealerships were unable to reproduce the condition or state that Honda dealerships informed the consumer that this is considered normal AEB operation. To date, ODI has received a total of 106 consumer complaints of inadvertent activation of AEB in the subject vehicles.In total, ODI reviewed 475 reports involving vehicles with unique VINs that may relate to the alleged defect. Of the reports reviewed by ODI, three (3) allege a crash caused by the inadvertent activation of AEB and two (2) allege injury. This Engineering Analysis is being opened to further assess the scope, frequency, and potential safety related consequences of the inadvertent AEB activations. Further, the scope of the investigation is being expanded to include assessment of model year 2023 Honda Passport vehicles. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

PE24008 · Inadvertent Automatic Emergency Braking

Opened Mar 7, 2024 · Closed Jan 17, 2025

Status: closed (inferred from source dates) · Forward Collision Avoidance; Forward Collision Avoidance: Automatic Emergency Braking

On March 7, 2024, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE24008) to assess reports of inadvertent activation of the Automatic Emergency Braking (AEB) system in model year 2019-2022 Honda Insight and 2019-2022 Honda Passport vehicles. The complainants allege activation of the AEB system with no apparent obstruction in the vehicle's path, resulting in rapid vehicle deceleration. Honda indicated that it is aware of a total of 412 reports that may relate to the alleged defect. Honda provided analysis of the alleged defect and stated that some customers possibly had an inadequate understanding of the AEB system and its limitations. However, many consumer complaints received by ODI allege that Honda dealerships were unable to reproduce the condition or state that Honda dealerships informed the consumer that this is considered normal AEB operation. To date, ODI has received a total of 106 consumer complaints of inadvertent activation of AEB in the subject vehicles.In total, ODI reviewed 475 reports involving vehicles with unique VINs that may relate to the alleged defect. Of the reports reviewed by ODI, three (3) allege a crash caused by the inadvertent activation of AEB and two (2) allege injury. This Preliminary Evaluation is being upgraded to an Engineering Analysis (EA25002) to further assess the scope, frequency, and potential safety related consequences of the inadvertent AEB activations. Further, the scope of the Engineering Analysis is being expanded to include assessment of model year 2023 Honda Passport vehicles. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

Additional source detail variants (2)

Forward Collision Avoidance: Automatic Emergency Braking

On March 7, 2024, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE24008) to assess reports of inadvertent activation of the Automatic Emergency Braking (AEB) system in model year 2019-2022 Honda Insight and 2019-2022 Honda Passport vehicles. The complainants allege activation of the AEB system with no apparent obstruction in the vehicle's path, resulting in rapid vehicle deceleration. Honda indicated that it is aware of a total of 412 reports that may relate to the alleged defect. Honda provided analysis of the alleged defect and stated that some customers possibly had an inadequate understanding of the AEB system and its limitations. However, many consumer complaints received by ODI allege that Honda dealerships were unable to reproduce the condition or state that Honda dealerships informed the consumer that this is considered normal AEB operation. To date, ODI has received a total of 106 consumer complaints of inadvertent activation of AEB in the subject vehicles.In total, ODI reviewed 475 reports involving vehicles with unique VINs that may relate to the alleged defect. Of the reports reviewed by ODI, three (3) allege a crash caused by the inadvertent activation of AEB and two (2) allege injury. This Preliminary Evaluation is being upgraded to an Engineering Analysis (EA25002) to further assess the scope, frequency, and potential safety related consequences of the inadvertent AEB activations. Further, the scope of the Engineering Analysis is being expanded to include assessment of model year 2023 Honda Passport vehicles. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

Forward Collision Avoidance

On March 7, 2024, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE24008) to assess reports of inadvertent activation of the Automatic Emergency Braking (AEB) system in model year 2019-2022 Honda Insight and 2019-2022 Honda Passport vehicles. The complainants allege activation of the AEB system with no apparent obstruction in the vehicle's path, resulting in rapid vehicle deceleration. Honda indicated that it is aware of a total of 412 reports that may relate to the alleged defect. Honda provided analysis of the alleged defect and stated that some customers possibly had an inadequate understanding of the AEB system and its limitations. However, many consumer complaints received by ODI allege that Honda dealerships were unable to reproduce the condition or state that Honda dealerships informed the consumer that this is considered normal AEB operation. To date, ODI has received a total of 106 consumer complaints of inadvertent activation of AEB in the subject vehicles.In total, ODI reviewed 475 reports involving vehicles with unique VINs that may relate to the alleged defect. Of the reports reviewed by ODI, three (3) allege a crash caused by the inadvertent activation of AEB and two (2) allege injury. This Preliminary Evaluation is being upgraded to an Engineering Analysis (EA25002) to further assess the scope, frequency, and potential safety related consequences of the inadvertent AEB activations. Further, the scope of the Engineering Analysis is being expanded to include assessment of model year 2023 Honda Passport vehicles. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.