NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
160 reportsClear category filter22,300 miles · Jul 18, 2019
EngineFuel/propulsion SystemPower Train
AT 70 MPH THE VEHICLE LOST POWER, ALL WARNING LIGHTS CAME ON, I HAD TO MANEUVER THRU TRAFFIC AND DRIFT TO THE SHOULDER, THE TRANSMISSION WAS LOCKED UP AND COULD NOT BE SHIFTED FROM PARK TO ANY GEAR, THE ACCELERATOR WOULD NOT WORK. THE CAR HAD TO BE TOWED.THE DEALERSHIP SAID THE VEHICLE COMPUTER HAD TO BE RE-FLASHED/PROGRAMMED. T…
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AT 70 MPH THE VEHICLE LOST POWER, ALL WARNING LIGHTS CAME ON, I HAD TO MANEUVER THRU TRAFFIC AND DRIFT TO THE SHOULDER, THE TRANSMISSION WAS LOCKED UP AND COULD NOT BE SHIFTED FROM PARK TO ANY GEAR, THE ACCELERATOR WOULD NOT WORK. THE CAR HAD TO BE TOWED.THE DEALERSHIP SAID THE VEHICLE COMPUTER HAD TO BE RE-FLASHED/PROGRAMMED. THIS CONDITION COULD HAVE CAUSED AN ACCIDENT FOR AN INEXPERIENCED DRIVER.THERE ARE NO FAULT CODES INDICATED AS TO WHY OR WHAT CAUSED THIS ISSUE. I DID FIND THROUGH RESEARCH THAT A WIRING HARNESS IS CAUSING THESE CONDITIONS IN THE MAKE, MODEL AND YEAR VEHICLE. ALSO THE TRANSMISSION IS RELATED TO THIS PROBLEM.
NHTSA ODI #11233005
30,000 miles · Jun 5, 2019
Power Train
TL* THE CONTACT OWNS A 2015 ACURA TLX. WHILE DRIVING APPROXIMATELY 75-80 MPH, THE VEHICLE INDEPENDENTLY SHIFTED FROM DRIVE INTO NEUTRAL. THE CONTACT WAS UNABLE TO SHIFT THE VEHICLE BACK INTO DRIVE. THE CONTACT TURNED THE VEHICLE OFF AND BACK ON, AND WAS ABLE TO SHIFT THE VEHICLE INTO PARK, NEUTRAL, AND DRIVE; HOWEVER, THE FAILUR…
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TL* THE CONTACT OWNS A 2015 ACURA TLX. WHILE DRIVING APPROXIMATELY 75-80 MPH, THE VEHICLE INDEPENDENTLY SHIFTED FROM DRIVE INTO NEUTRAL. THE CONTACT WAS UNABLE TO SHIFT THE VEHICLE BACK INTO DRIVE. THE CONTACT TURNED THE VEHICLE OFF AND BACK ON, AND WAS ABLE TO SHIFT THE VEHICLE INTO PARK, NEUTRAL, AND DRIVE; HOWEVER, THE FAILURE RECURRED. THE VEHICLE WAS TAKEN TO FAYETTEVILLE ACURA (LOCATED AT 2022 SKIBO RD, FAYETTEVILLE, NC 28314, (910) 864-1449) WHERE DIAGNOSTIC TROUBLE CODES P0716 (PCM) AND B2A60-97 (POWER TRAIN) WERE LOCATED. THE VEHICLE WAS NOT REPAIRED. THE VEHICLE WAS PRESENTLY STILL AT THE DEALER. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 16V640000 (POWER TRAIN). THE MANUFACTURER WAS CONTACTED. THE APPROXIMATE FAILURE MILEAGE WAS 30,000.
NHTSA ODI #11218026
60,000 miles · May 21, 2019
Power Train
TRANSMISSION IS REALLY ROUGH WHEN SHIFTING TO GEARS 1,2, AND 3. IT IS GETTING WORSE THE MORE I DRIVE. ALSO, VERY SLOW AND ROUGH SHIFT FROM PARK TO DRIVE. WHEN I AM DRIVING UPHILL FROM A FULL STOP, I HEAR A LOUD THUD AND FEEL A HARD JERK WHEN SHIFTING FROM 1ST TO 2ND GEAR AND 2ND TO 3RD. WHEN I AM DRIVING DOWNHILL AND APP…
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TRANSMISSION IS REALLY ROUGH WHEN SHIFTING TO GEARS 1,2, AND 3. IT IS GETTING WORSE THE MORE I DRIVE. ALSO, VERY SLOW AND ROUGH SHIFT FROM PARK TO DRIVE. WHEN I AM DRIVING UPHILL FROM A FULL STOP, I HEAR A LOUD THUD AND FEEL A HARD JERK WHEN SHIFTING FROM 1ST TO 2ND GEAR AND 2ND TO 3RD. WHEN I AM DRIVING DOWNHILL AND APPROACHING A STOP, IT DANGEROUSLY ACCELERATES THE CAR FORWARD AFTER SHIFTING DOWN TO 3RD, 2ND, AND 1ST GEAR. IT IS ALSO VERY ABRUPT AND JERKY DURING THOSE SHIFTS DOWN.
NHTSA ODI #11209018
42,900 miles · May 20, 2019
Electrical SystemPower Train
TRAVELING ON INTERSTATE IN THE MIDDLE LANE WHEN MY CARS TRANSMISSION WENT IN TO NEUTRAL AND THE INSTRUMENT PANEL STARTED TO FLASH ERROR MESSAGES I.E. STOP DRIVING WHEN SAFE TRANSMISSION PROBLEM SEE MANUAL,ELECTRICAL PARKING BRAKE PROBLEM, EMISSIONS SYSTEMS PROBLEM, TRANSMISSION SYSTEM PROBLEMS, TRANSMISSION PROBLEM APPLY PARKING…
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TRAVELING ON INTERSTATE IN THE MIDDLE LANE WHEN MY CARS TRANSMISSION WENT IN TO NEUTRAL AND THE INSTRUMENT PANEL STARTED TO FLASH ERROR MESSAGES I.E. STOP DRIVING WHEN SAFE TRANSMISSION PROBLEM SEE MANUAL,ELECTRICAL PARKING BRAKE PROBLEM, EMISSIONS SYSTEMS PROBLEM, TRANSMISSION SYSTEM PROBLEMS, TRANSMISSION PROBLEM APPLY PARKING BRAKE WHEN PARKED, ALL WHEEL DRIVE SYSTEM PROBLEM, AND BLIND SPOT INFO SYSTEM PROBLEM. ALL I CAN DO IS COST OVER TWO LANES OF TRAFFIC AND GET TO THE SIDE OF THE INTERSTATE IN FEAR OF AN ACCIDENT.
NHTSA ODI #11208853
60,000 miles · May 9, 2019
Electrical SystemEnginePower Train
TL* THE CONTACT OWNS A 2015 ACURA TLX. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE FAILED TO CORRECTLY SHIFT GEARS. ALL THE INDICATOR WARNING LIGHTS WERE ILLUMINATED. ADDITIONALLY, THE VEHICLE FAILED TO ACCELERATE UPON STARTING. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER RICK CASE ACURA (875 N STATE RD…
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TL* THE CONTACT OWNS A 2015 ACURA TLX. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE FAILED TO CORRECTLY SHIFT GEARS. ALL THE INDICATOR WARNING LIGHTS WERE ILLUMINATED. ADDITIONALLY, THE VEHICLE FAILED TO ACCELERATE UPON STARTING. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER RICK CASE ACURA (875 N STATE RD 7, FORT LAUDERDALE FL (954) 715-7796) WHERE IT WAS DIAGNOSED THAT BATTERY NEEDED TO BE REPLACED. THE BATTERY WAS REPLACED HOWEVER THE FAILURE RECURRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 60,000. THE VIN WAS NOT AVAILABLE.
NHTSA ODI #11206444
31,597 miles · Apr 30, 2019
Power Train
THE VEHICLE IS SHAKING AT HIGHWAY SPEEDS , THIS DOES THIS BETWEEN 55-75 MPH THE VEHICLE IS SHAKING IN THE CENTER OF THE CAR, THIS IS AT ALL TIMES ON HIGHWAY AND ALL ROAD CONDITIONS THIS IS ON THE AWD MODEL
NHTSA ODI #11204656
30,000 miles · Apr 19, 2019
Fuel/propulsion SystemPower TrainVehicle Speed Control
THE CAR NEARLY STALLS, ROLLED BACK 3-4 FEET PRIOR TO RESTARTING AFTER THE IDLE STOP HAD IN- GAUGED. THE TRANSMISSION SHIFTS FROM 1-4 LIKE SOMEONE WHO NEVER DROVE WITH A CLUTCH, EVEN THOUGH IT IS AN AUTOMATIC. IT HESITATES AND NEARLY STALLS WHEN DOING SLOW MANEUVERING IN AND AROUND PARKING LOTS AND SLOW TRAFFIC. I HAVE NEARLY HA…
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THE CAR NEARLY STALLS, ROLLED BACK 3-4 FEET PRIOR TO RESTARTING AFTER THE IDLE STOP HAD IN- GAUGED. THE TRANSMISSION SHIFTS FROM 1-4 LIKE SOMEONE WHO NEVER DROVE WITH A CLUTCH, EVEN THOUGH IT IS AN AUTOMATIC. IT HESITATES AND NEARLY STALLS WHEN DOING SLOW MANEUVERING IN AND AROUND PARKING LOTS AND SLOW TRAFFIC. I HAVE NEARLY HAD ACCIDENTS DUE TO THE HESITATION IN TRAFFIC. WHEN USING CRUISE CONTROL OUT ON THE EXPRESSWAY, THE CAR WILL NOT MAINTAIN ITS SET SPEED ON A DOWNHILL GRADE, IT GETS JERKY AND INCREASES SPEED AS MUCH AS 10-12 MPH UNLESS I RIDE THE BRAKE. I HAVE HAD IT BACK TO THE DEALER TWICE NOW, THE FIRST TIME THEY DID ALL THE UPDATES ON THE COMPUTER AND FUEL PUMP...ITS JUST AS BAD IF NOT WORSE. THE CAR IS NOT SAFE AND SHOULD HAVE A COMPLETE RECALL!!! THE NEXT QUESTIONS ASK FOR A SPECIFIC TIME AND DATE...THIS IS ONGOING AND HAS BEEN HAPPENING SINCE I PURCHASED THE CAR IN JANUARY.
NHTSA ODI #11197366
45,000 miles · Feb 3, 2019
Power Train
IF ENGINE STALLS CAR PLACES IT SELF IN PARK AND WILL NOT LET YOU PUT IT IN NEUTRAL. THEREFORE, YOU CAN'T GET THE VEHICLE OUT OF HARMS WAY. THIS IS A SAFETY HAZARD.
NHTSA ODI #11173845
62,000 miles · Jan 3, 2019
Electrical SystemPower Train
TL* THE CONTACT OWNS A 2015 ACURA TLX. WHILE OPERATING THE VEHICLE, THE TRANSMISSION, CRASH ASSIST, AND TRACTION CONTROL WARNING INDICATORS ILLUMINATED AND THE VEHICLE SUDDENLY DECELERATED. ACURA BY EXECUTIVE (527 WASHINGTON AVE, NORTH HAVEN, CT) WAS NOTIFIED OF THE FAILURE. THE FAILURE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFAC…
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TL* THE CONTACT OWNS A 2015 ACURA TLX. WHILE OPERATING THE VEHICLE, THE TRANSMISSION, CRASH ASSIST, AND TRACTION CONTROL WARNING INDICATORS ILLUMINATED AND THE VEHICLE SUDDENLY DECELERATED. ACURA BY EXECUTIVE (527 WASHINGTON AVE, NORTH HAVEN, CT) WAS NOTIFIED OF THE FAILURE. THE FAILURE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED AND DID NOT ASSIST. THE FAILURE MILEAGE WAS 62,000.
NHTSA ODI #11165651
17,800 miles · Dec 19, 2018
Electrical SystemEnginePower Train
I HAVE HAD THE VEHICLE INTO THE DEALER 3 TIMES (FEB 2018, JULY 2018 AND NOV 18) FOR THE SAME PROBLEM. EACH TIME THE VEHICLE STALLS AND MUST BET INTO PARK AND RESTARTED WHEN AT A STOP SIGN, STOP LIGHT OR STOPPED FOR ROAD CONSTRUCTION ON THE HIGHWAY. THE AUTOMATIC IDLE CAUSES THE CAR TO STALL. IN ORDER TO GET IT GOING MUST SHIFT …
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I HAVE HAD THE VEHICLE INTO THE DEALER 3 TIMES (FEB 2018, JULY 2018 AND NOV 18) FOR THE SAME PROBLEM. EACH TIME THE VEHICLE STALLS AND MUST BET INTO PARK AND RESTARTED WHEN AT A STOP SIGN, STOP LIGHT OR STOPPED FOR ROAD CONSTRUCTION ON THE HIGHWAY. THE AUTOMATIC IDLE CAUSES THE CAR TO STALL. IN ORDER TO GET IT GOING MUST SHIFT INTO PARK AND RESTART. IT IS VERY FRIGHTENING BECAUSE IT HAPPENS INTERMITTENTLY. THIS HAPPENS WITH NO WARNING AND PRESENTS A SAFETY ISSUE. THE CAR IS NOT SAFE AND IS A HAZARD.
NHTSA ODI #11162430
Official recalls
6Dec 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.
Nov 13, 2023
Honda (American Honda Motor Co.) is recalling certain 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2016 and 2018-2019 Pilot, 2017 and 2019 Ridgeline, and 2018-2019 Odyssey vehicles. Due to a manufacturing error, the connecting rod bearing in the engine may wear and seize, damaging the engine.
Consequence & remedy
Consequence: A damaged engine may run improperly or stall while driving, increasing the risk of a fire, crash, or injury.
Remedy: Dealers will inspect and repair, or replace the engine as necessary, free of charge. Owner letters were mailed March 28, 2024. 2016-2017 Acura MDX owner letters were mailed November 1, 2024. 2016-2020 Acura MDX owner letters are expected to be mailed in mid-December 2024. Honda began mailing owner notification letters as of March 18, 2024. 2015-2016 Acura owner letters are expected to be mailed mid-December 2024, 2018 Acura TLX owner letters are expected to be mailed the end of March/early April 2024, 2019 Acura TLX owner letters are expected to be mailed mid-May 2024, 2020 Acura TLX owner letters are expected to be mailed mid-June 2024, and 2016-2020 Acura MDX owner letters are expected to be mailed January 27, 2025. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XG1 and GG0.
Jan 29, 2019
Honda (American Honda Motor Co.) is recalling certain 2016-2018 Acura MDX, 2015-2019 Acura TLX and 2015-2017 Honda Accord vehicles, equipped with a 3.5L V6 engine. Particulates in fuel may adhere to the internal components of the fuel pump, reducing its performance.
Consequence & remedy
Consequence: Reduced fuel pump performance can result in an engine stall, increasing the risk of crash.
Remedy: Honda will notify owners, and dealers will update the fuel injection engine control unit (FI-ECU) software and, if necessary, replace the fuel pump, free of charge. The recall began March 25, 2019. Owners may contact customer service at 1-888-234-2138. Acura's recall number for this recall is P3W. Honda's recall number for this recall is N3X.
Sep 6, 2016
Honda (American Honda Motor Co.) is recalling certain model year 2015 Acura TLX 2WD and 4WD vehicles. In the affected vehicles, the transmission wire harness connections may have insufficient crimps, and, as a result, the transmission may unexpectedly shift to neutral.
Consequence & remedy
Consequence: If the vehicle unexpectedly shifts to neutral, there is an increased risk of a crash.
Remedy: Acura has notified owners, and dealers will, based on the automatic transmission serial number, update the transmission software to prevent the transmission from shifting into neutral due to a faulty crimp, free of charge. The recall began January 13, 2017. Owners may contact Acura Client Relations at 1-888-234-2138. Honda's number for this recall is KC2.
Dec 8, 2014
American Honda Motor Co. (Honda) is recalling certain model year 2015 Acura TLX V6 2WD vehicles manufactured July 14, 2014, to November 12, 2014, and certain 2015 TLX V6 SH-AWD vehicles manufactured August 26, 2014, to November 10, 2014. The automatic transmission parking pawl may become contaminated or the park rod may become dislodged or broken. This may prevent the transmission from shifting into the Park position.
Consequence & remedy
Consequence: If the shift indicator displays "Park" but the park lock does not engage, the vehicle may roll away increasing the risk of a crash.
Remedy: Honda will notify owners, and dealers will inspect and replace the transmission if necessary, free of charge. The recall began January 30, 2015. Owners may contact Honda customer service at 1-310-783-2000. Honda's number for this recall is JM8.
Oct 1, 2014
American Honda Motor Co. (Honda) is recalling certain model year 2015 Acura TLX AWD vehicles manufactured August 26, 2014, to September 20, 2014. The affected vehicles may have incorrect values for the Gross Vehicle Weight Rating (GVWR) and Gross Axle Weight Rating (GAWR) front and rear printed on the safety certification label. As such, the vehicles do not conform to Part 567, "Certification."
Consequence & remedy
Consequence: If the vehicle is loaded to the specifications listed on the label, tire failure may result, increasing the risk of a crash.
Remedy: Honda will notify owners, and dealers will install a corrected certification label, free of charge. The recall is expected to begin on October 21, 2014. Owners may contact Honda customer service at 1-800-382-2238. Honda's number for this recall is JK6.
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
2EA25004 · 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.
EA19001 · Electrical Overstress
Opened Apr 19, 2019 · Closed Sep 19, 2024
Status: closed (inferred from source dates) · Air Bags: Air Bag/restraint Control Module
The Office of Defects Investigation (ODI) opened this investigation to determine if the failure of airbags to deploy during severe crashes, in certain vehicles, was the result of a safety related defect. During the investigation a complex failure was studied that can result in non-deployment of subject vehicle air bags and other restraint system devices in severe crash events. The subject vehicles may be equipped with an airbag control unit (ACU) for the supplemental restraint system (SRS) Electronic Control Unit (ECU) manufactured by ZF-TRW. The ECU receives signals from crash sensors mounted in the vehicle and deploys the vehicle air bags and seat belt pretensioners in accordance with manufacturer design specifications. The ECU in the subject vehicles contains a model DS84 application-specific integrated circuit (ASIC) which controls the communication of the crash sensor signal, firing commands (i.e., when to deploy the airbag(s) and/or pretensioners), and fault information (e.g., diagnostic trouble codes). In September 2016, FCA announced recall 16V-668 for certain model year (MY) 2010 to 2014 Chrysler, Dodge and Jeep products manufactured with the subject ZF-TRW ACU. In this recall, FCA discussed an EOS condition that resulted in a failure of the subject DS84 ASIC, which caused air bag non-deployment. FCA noted that the defect condition had only been observed in vehicles equipped with sensor harnessing routed across the front of the vehicle. Other FCA vehicles that also used the subject ACU, but were not equipped with cross-car harnessing, had not experienced EOS failures, despite similar time in service. During the course of this investigation, ODI sent two separate Information Request (IR) letters to six vehicle manufactures (including FCA, Hyundai, Honda, Kia, Mitsubishi, and Toyota) and one IR letter to ZF-TRW. These IR letters resulted in ODI receiving comprehensive data from these manufacturers and suppliers. Studies of this data found that the DS84 ASIC does not have sufficient protection against negative electrical transients or electrical overstress (“EOS”) that can be generated in certain severe crashes. An electrical transient occurs when the electrical power supplied to a circuit changes momentarily over a short duration of time. In these severe crash cases, the crash sensors and other powered wiring can be damaged and short circuited so as to create a negative electrical transient of sufficient intensity and duration (that are outside the vehicle manufacturer's specification) to damage the ASIC before the restraint device deployment signal is received by the SRS ECU. This damaged signal can lead to incomplete or nondeployment of the air bags and/or pretensioners. Airbag non-deployment and/or lack of pretensioner operation can increase the risk or severity of injury in a crash.A total of 8 fatalities and 14 injuries were associated with known EOS events. The common element in all investigated manufacturers vehicles is the SRS ECU containing a DS84 ASIC manufactured by ZF-TRW. The risk associated with the ASIC is equally shared among all OEMS involved in the investigation. The actual real-world risk can be mitigated by other factors which were assessed by ODI during this investigation. The first mitigating factor involves protections built into the ACU design which protect the DS84 ASIC from damage. There are multiple strategies and levels of protection employed by different OEMs that provide effective EOS mitigation. The two most common strategies at the ACU level are circuit protection diodes on the remote senor signal lines, and current limiting resistors that protect critical components. The second mitigating factor is found at the vehicle level and involves the location and routing of the wires leading from the crash sensors to the SRS ECU. If the wires are well protected in a crash and are not routed with other power wires carrying large currents, the risk for an EOS event is significantly reduced or eliminated. These design specific factors combine to produce a spectrum of risk for the vehicles equipped with ACUs using the DS84 ASIC. Given the many of years of field exposure, it is possible to divide the subject population into two groups; vehicles which have experienced EOS events, and vehicles which have not experienced EOS field events. Four of the six OEMs involved in this investigation have experienced EOS field events on at least one of their models equipped with a DS84 ASIC. All vehicle models (including the Toyota models identified in the Failure Report Summary of the opening resume for this investigation) with field events have been recalled. In an abundance of caution, ODI kept this investigation open five years to monitor field performance and did not identify any field events on vehicles not included in existing safety recalls. Given the spectrum of risk identified in this investigation and that all vehicles with a demonstrated unreasonable risk have been recalled, ODI is closing this investigation. ODI is closing this investigation with the following manufacturer safety recalls: 16V-668, 18E-043, 18V-137, 18V-363, and 20V-024. With the recall actions taken by the subject vehicle and equipment manufacturers, this investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exists on other model or model year vehicles outside of the recall scopes. The agency reserves the right to take further action if warranted by the circumstances.