NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
20 reportsClear category filterMileage unknown · Sep 14, 2026
Electrical System
2024 Honda Ridgeline, VIN [XXX], approximately 21,000 miles. The vehicle has repeatedly failed to restart in traffic after the Auto Idle Stop system automatically shut off the engine. Failures occurred XXX. During one occurrence, I was nearly rear-ended when the vehicle failed to restart as traffic began moving. The vehicle als…
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2024 Honda Ridgeline, VIN [XXX], approximately 21,000 miles. The vehicle has repeatedly failed to restart in traffic after the Auto Idle Stop system automatically shut off the engine. Failures occurred XXX. During one occurrence, I was nearly rear-ended when the vehicle failed to restart as traffic began moving. The vehicle also intermittently cranks abnormally slowly when hot. The starter will crank, pause, then crank noticeably slower. I can intermittently reproduce the fail to start problem by driving until the vehicle is hot, shutting it off, and immediately restarting it. I have two videos of this condition. Honda replaced the battery, but the problem continues. The dealer reports that the battery, alternator, and starter pass diagnostic testing. I provided video documenting the abnormal slow cranking and failure to start, but no repair has been made. My primary safety concern is that Auto Idle Stop automatically shuts off the engine while stopped in active traffic, but the vehicle may then fail to restart, leaving it disabled in a traffic lane. The vehicle has already experienced this failure three times. NHTSA is currently investigating Auto Start/Stop no-restart complaints involving 2020–2025 Honda Ridgelines under EA25-004. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11764098
Mileage unknown · Sep 7, 2026
Electrical SystemEnginePower Train
I am reporting a recurring Auto Idle Stop no-restart and starting-system failure in a 2024 Honda Ridgeline. At approximately 35,072 miles, while stopped at a traffic light with Auto Idle Stop engaged, the engine shut off but failed to restart when the brake pedal was released. The vehicle remained disabled in the intersection un…
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I am reporting a recurring Auto Idle Stop no-restart and starting-system failure in a 2024 Honda Ridgeline. At approximately 35,072 miles, while stopped at a traffic light with Auto Idle Stop engaged, the engine shut off but failed to restart when the brake pedal was released. The vehicle remained disabled in the intersection until it was manually restarted, creating a risk of a collision. An authorized Honda dealer found both positive and negative battery terminals loose, tightened them, reported that the battery passed a load test, found no diagnostic trouble codes, and returned the vehicle. The battery had already been replaced at approximately 30,238 miles after a slow-start complaint and a failed battery test. The condition recurred at approximately 42,563 miles. After the engine shut off at a light, the vehicle displayed an orange “P” and “System Problem Detected - Shift to Park,” went into Neutral, and required a manual restart before Drive could be restored. The dealer later reported that the replacement battery tested at approximately 197 CCA against its 650 CCA rating, but no root cause for the rapid deterioration or the shutdown/no-restart condition has been identified. The vehicle now intermittently cranks slowly and appears strained while starting. No permanent repair has been completed. The vehicle is available for inspection. The condition creates a safety risk because the vehicle can fail to restart or move from an intersection and may enter Neutral unexpectedly.
NHTSA ODI #11762606
Mileage unknown · Sep 6, 2026
Electrical System
While stopped at a red light, the auto on/off feature engaged and the engine shut off. Upon release of the brake, the engine failed to restart.
NHTSA ODI #11762495
Mileage unknown · Sep 3, 2026
Electrical SystemEngine
When stopped at a stop light the auto start feature sometimes - more often than not- fails to start back and the truck is stuck at the intersection. After putting it in park it will start after several tries. My dealership tells me there is nothing wrong with it even though it’s still under warranty. This has happened over 10 …
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When stopped at a stop light the auto start feature sometimes - more often than not- fails to start back and the truck is stuck at the intersection. After putting it in park it will start after several tries. My dealership tells me there is nothing wrong with it even though it’s still under warranty. This has happened over 10 times to me
NHTSA ODI #11761891
Mileage unknown · Sep 2, 2026
Electrical SystemEngine
Receiving pop up faults on instrument panel. ie battery low voltage, adaptive cruise sys problem, road departure mitigation sys problem, Sys problem detected shift to park, to start engine brake and push start, idle stop engine will not restart all of these issue donot throw codes to the main ECM or BCM so dealer can't trace the…
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Receiving pop up faults on instrument panel. ie battery low voltage, adaptive cruise sys problem, road departure mitigation sys problem, Sys problem detected shift to park, to start engine brake and push start, idle stop engine will not restart all of these issue donot throw codes to the main ECM or BCM so dealer can't trace the problem. This has been going on since march 2025
NHTSA ODI #11761732
Mileage unknown · Aug 13, 2026
Electrical SystemEngine
After coming to a stop and the idle stop feature engages, the vehicle does not automatically restart. I am presented with a message that says "system problem detected. shift to park". After shifting to park, I am presented with another message that says ""to continue to drive, depress the brake pedal and push switch." I then h…
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After coming to a stop and the idle stop feature engages, the vehicle does not automatically restart. I am presented with a message that says "system problem detected. shift to park". After shifting to park, I am presented with another message that says ""to continue to drive, depress the brake pedal and push switch." I then have to completely shut off the engine by pushing the "stop button". Then, I have to do a full restart before the vehicle starts again. This has happened 5 times in the last month. Here is a video of one incident - [XXX].[XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11756706
34,200 miles · Aug 12, 2026
Electrical SystemEngine
The contact owns a 2024 Honda Ridgeline. The contact stated that while stopping at a red light, the Auto START feature failed to restart the vehicle, and the vehicle started rolling backwards. The brake pedal was depressed, and the PUSH to START button was depressed, and the vehicle was restarted. The dealer was contacted; howev…
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The contact owns a 2024 Honda Ridgeline. The contact stated that while stopping at a red light, the Auto START feature failed to restart the vehicle, and the vehicle started rolling backwards. The brake pedal was depressed, and the PUSH to START button was depressed, and the vehicle was restarted. The dealer was contacted; however, the vehicle was not yet diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 34,200.
NHTSA ODI #11756498
35,000 miles · Jul 17, 2026
Electrical SystemEngine
The contact owns a 2024 Honda Ridgeline. The contact stated that while attempting to start the vehicle with the Push-To-Start feature, the vehicle failed to start. No warning light was illuminated. Additionally, while idling in traffic, the vehicle lost automotive power and failed to accelerate as intended while the accelerator …
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The contact owns a 2024 Honda Ridgeline. The contact stated that while attempting to start the vehicle with the Push-To-Start feature, the vehicle failed to start. No warning light was illuminated. Additionally, while idling in traffic, the vehicle lost automotive power and failed to accelerate as intended while the accelerator pedal was depressed. The vehicle was restarted as a temporary fix. Upon further inspection, the contact became aware of an abnormal electrical burning odor entering the cabin of the vehicle. The vehicle was taken to a local dealer, where it was diagnosed; however, no cause for the failure was found. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 35,000.
NHTSA ODI #11751077
Mileage unknown · Jul 16, 2026
Electrical System
I OWN A 2024 HONDA RIDGELINE TRAILSPORT. THE AUTOMATIC IDLE IS CONTINUOUSLY DRAINING THE BATTERY, MAKING IT HARD FOR THE TRUCK TO START. I HAVE PURCHASED 2 BATTERIES SINCE MAY 2024, WHEN I PURCHASED THE TRUCK. IT APPEARS THAT THERE IS SOMETHING WRONG WITH THE AUTOMATIC IDLE ON THE TRUCK, BUT HONDA TELLS ME THERE IS NOTHING WRONG…
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I OWN A 2024 HONDA RIDGELINE TRAILSPORT. THE AUTOMATIC IDLE IS CONTINUOUSLY DRAINING THE BATTERY, MAKING IT HARD FOR THE TRUCK TO START. I HAVE PURCHASED 2 BATTERIES SINCE MAY 2024, WHEN I PURCHASED THE TRUCK. IT APPEARS THAT THERE IS SOMETHING WRONG WITH THE AUTOMATIC IDLE ON THE TRUCK, BUT HONDA TELLS ME THERE IS NOTHING WRONG. WHEN ACTIVATED, THE AUTOMATIC IDLE WILL SHUT DOWN THE VEHICLE IN TRAFFIC, CAUSING A VERY DANGEROUS SITUATION BECAUSE THE BATTERY DOES NOT HAVE ENOUGH POWER TO START THE VEHICLE WHENIT STALLS.
NHTSA ODI #11750927
Mileage unknown · Jun 16, 2026
Electrical System
Windows and moon roof on 2024 Honda Ridgeline opens when parked. Lock button on Key fob is supposed to be pressed twice to activate this feature but opens when fob is on desk or in my pocket. No damage yet but could cause problems for theft or rain damage if parked outside when unattended
NHTSA ODI #11744386
NHTSA investigations
1EA25004 · 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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