NHTSA owner reports · September 18, 2026 snapshot.
Fuel/propulsion System complaints
233 reportsClear category filter87,000 miles · Jul 24, 2020
Electrical SystemFuel/propulsion SystemUnknown Or Other
VEHICLE WILL NOT TURN OFF WHILE IN PARK AND A 'SHIFT TO PARK' NOTICE IS DISPLAYED. VEHICLE NEEDS TO BE SHIFTED IN AND OUT OF PARK SEVERAL TIMES FOR IT TO REGISTER. HAPPENS INTERMITTENTLY. THE MANUFACTURER IS AWARE OF THE ISSUE AND HAS BULLETIN # 19-NA-206 ISSUED - A RECALL SHOULD BE MANDATORY AS THE VEHICLE CANNOT BE LEFT RUNNIN…
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VEHICLE WILL NOT TURN OFF WHILE IN PARK AND A 'SHIFT TO PARK' NOTICE IS DISPLAYED. VEHICLE NEEDS TO BE SHIFTED IN AND OUT OF PARK SEVERAL TIMES FOR IT TO REGISTER. HAPPENS INTERMITTENTLY. THE MANUFACTURER IS AWARE OF THE ISSUE AND HAS BULLETIN # 19-NA-206 ISSUED - A RECALL SHOULD BE MANDATORY AS THE VEHICLE CANNOT BE LEFT RUNNING UNATTENDED. IT IS A VIOLATION OF CALIFORNIA VEHICLE CODE 22515(A) NO PERSON DRIVING, OR IN CONTROL OF, OR IN CHARGE OF, A MOTOR VEHICLE SHALL PERMIT IT TO STAND ON ANY HIGHWAY UNATTENDED WITHOUT FIRST EFFECTIVELY SETTING THE BRAKES THEREON AND STOPPING THE MOTOR THEREOF.
NHTSA ODI #11341306
50,000 miles · Jul 16, 2020
Electrical SystemEngineFuel/propulsion System
BECM FAILURE. 1) SHIFT INTO PARK MESSAGE DISPLAYED. 2) FAILURE TO CHARGE, ORANGE LIGHT DISPLAYED. 3) SWITCH TO GAS WITH INTERMITTENTLY WITH BATTERY CAPACITY EXISTING. ERRATIC/FLUCTUATING BATTERY LEVELS DISPLAYED. 4) FAILURE TO DRIVE. 5) AC FAILURE.
NHTSA ODI #11339845
45,255 miles · Jul 5, 2020
Electrical SystemFuel/propulsion SystemPower Train
DASH BOARD DISPLAYS 'SHIFT TO PARK' ALTHOUGH THE CAR IS IN PARK ALREADY. THE ENERGY MARKER APPEARS FULL ALTHOUGH 0MILES REMAIN, AFTER 'AFTER SHIFT TO PARK' APPEARS CAR STAYS STATIONARY AND DOES NOT ACCELERATE NOR REVERSE. ENGINE DOES NOT START WHEN THE HOOD IS OPEN AND CAR WILL NOT TURN OFF. THE STEERING WHEEL ALSO LOSES POWER A…
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DASH BOARD DISPLAYS 'SHIFT TO PARK' ALTHOUGH THE CAR IS IN PARK ALREADY. THE ENERGY MARKER APPEARS FULL ALTHOUGH 0MILES REMAIN, AFTER 'AFTER SHIFT TO PARK' APPEARS CAR STAYS STATIONARY AND DOES NOT ACCELERATE NOR REVERSE. ENGINE DOES NOT START WHEN THE HOOD IS OPEN AND CAR WILL NOT TURN OFF. THE STEERING WHEEL ALSO LOSES POWER AND DOES NOT MOVE. CHECK ENGINE LIGHT IS ON AS WELL.
NHTSA ODI #11337580
40,493 miles · Jun 21, 2020
Fuel/propulsion SystemPower TrainSteering
WHEN MERGING ONTO THE HIGHWAY, I PRESSED THE ACCELERATOR, BUT THERE WAS A SIGNIFICANT LAG TO GET UP TO HIGHWAY SPEEDS. WITH THE WHEELS BEING POWERED BY THE ELECTRIC ENGINE, THE RESPONSE HAD ALWAYS BEEN INSTANT, UNTIL TODAY. AFTER ARRIVING AT MY DESTINATION, I TURNED MY CAR OFF AND BACK ON, BUT THE CHECK ENGINE LIGHT CAME ON AND …
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WHEN MERGING ONTO THE HIGHWAY, I PRESSED THE ACCELERATOR, BUT THERE WAS A SIGNIFICANT LAG TO GET UP TO HIGHWAY SPEEDS. WITH THE WHEELS BEING POWERED BY THE ELECTRIC ENGINE, THE RESPONSE HAD ALWAYS BEEN INSTANT, UNTIL TODAY. AFTER ARRIVING AT MY DESTINATION, I TURNED MY CAR OFF AND BACK ON, BUT THE CHECK ENGINE LIGHT CAME ON AND THE DASH READ "SHIFT TO PARK," EVEN THOUGH THE CAR WAS IN PARK.I TURNED THE CAR OFF AND ON AGAIN, AND THIS TIME I WAS ABLE TO SHIFT THE CAR TO DRIVE, BUT THE CHECK ENGINE LIGHT REMAINED ON. THE ACCELERATOR DID NOT PROPEL THE CAR AND THE STEERING WHEEL WAS LOCKED. I AGAIN SHIFTED TO PARK AND TURNED OFF THE CAR. I WAITED A FEW MINUTES AND STARTED THE CAR BACK UP, AND THE FUEL ENGINE TURNED ON THIS TIME, BUT I RECEIVED A MESSAGE SAYING THE CAR WAS NOT CHARGING. I WAS ABLE TO DRIVE IT, BUT THE ENGINE WOULD NOT SHUT OFF, AS IT USUALLY DOES AFTER THE BATTERIES ARE SUFFICIENTLY CHARGED. I DROVE ABOUT 3 MILES ON SURFACE STREETS AND THE FUEL ENGINE REMAINED ON THE ENTIRE TIME. THERE WAS A SIGNIFICANT AMOUNT OF LAG IN RESPONSE TIME BETWEEN PRESSING THE ACCELERATOR AND THE BATTERIES CHARGING UP ENOUGH TO PROPEL THE CAR, CAUSING AN UNSAFE RESPONSE TIME IN MERELY GETTING THE VEHICLE GOING AFTER STOPPING AT A LIGHT AND TURNING ONTO A NEW STREET.
NHTSA ODI #11329981
90,000 miles · May 16, 2020
Electrical SystemFuel/propulsion SystemUnknown Or Other
FOR THE PROPULSION MANY TIMES WHILE DRIVING IT OCCASIONALLY SLOWS DOWN OR SPEEDS UP KIND OF LIKE A BUCKING HORSE. FOR THE ELECTRICAL THE BLUETOOTH CONNECTIVITY TO MY CELL PHONE AND ALSO MY FOB OFTEN DISCONNECT AND THEN I CAN'T LOCK OR UNLOCK MY CAR. FOR THE OTHER ISSUE I HAVE A SHIFT TO PARK PROBLEM THAT LOCKS MY CAR AND I CAN'T…
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FOR THE PROPULSION MANY TIMES WHILE DRIVING IT OCCASIONALLY SLOWS DOWN OR SPEEDS UP KIND OF LIKE A BUCKING HORSE. FOR THE ELECTRICAL THE BLUETOOTH CONNECTIVITY TO MY CELL PHONE AND ALSO MY FOB OFTEN DISCONNECT AND THEN I CAN'T LOCK OR UNLOCK MY CAR. FOR THE OTHER ISSUE I HAVE A SHIFT TO PARK PROBLEM THAT LOCKS MY CAR AND I CAN'T SWITCH GEARS OR TURN THE CAR ON OR OFF FOR A FEW MINUTES THEN IT ALL OF A SUDDEN TURNS BACK ON BUT THE ISSUE IS THAT WHEN IT SAYS SHIFT TO PARK IT IS ACTUALLY IN THE PARK POSITION. *TR
NHTSA ODI #11324806
29,500 miles · Feb 12, 2020
Electrical SystemFuel/propulsion System
I PURCHASED MY USED 17 CHEVY VOLT 2 MONTHS AGO. SUDDENLY MY CAR STARTED HAVING INTERMEDIATE ISSUES OF SHOWING "SHIFT TO PARK" WHEN THE VEHICLE IS CLEARLY IN PARK MODE. WHEN THIS OCCURS THE VEHICLE CANNOT BE SHUT OFF. I HAVE ATTEMPTED TO CONTACT GM BUT THEY CLAIM THERE ARE NO RECALL OR SERVICE BULLETINS FOR MY VIN/VEHICLE. THERE …
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I PURCHASED MY USED 17 CHEVY VOLT 2 MONTHS AGO. SUDDENLY MY CAR STARTED HAVING INTERMEDIATE ISSUES OF SHOWING "SHIFT TO PARK" WHEN THE VEHICLE IS CLEARLY IN PARK MODE. WHEN THIS OCCURS THE VEHICLE CANNOT BE SHUT OFF. I HAVE ATTEMPTED TO CONTACT GM BUT THEY CLAIM THERE ARE NO RECALL OR SERVICE BULLETINS FOR MY VIN/VEHICLE. THERE ARE COUNTLESS ONLINE COMPLAINTS FROM 17 VOLT OWNERS SHOWING THE SAME ISSUE (THIS IS ALSO OCCURRING WITH OTHER GM MODELS & I AM ALSO SEEING SIMILAR COMPLAINTS ON THIS SITE). GM IS FULLY AWARE OF THIS DEFECT & HAS ONLY ISSUED SERVICE BULLETINS ON SOME VIN # - WHILE THEY SHOULD HAVE CAUSE - BASED ON NUMEROUS COMPLAINTS - THAT THIS IMPACT IS OCCURRING WITH THE MAJORITY OF 17 VOLTS. THIS IS A SAFETY ISSUE WHEN A 3,794 LBS VEHICLE CANNOT BE SHUT OFF. I AM ASKING THAT NHTSA ISSUE A RECALL IN REGARDS TO 2017 CHEVY VOLTS & THE "SHIT TO PARK" ISSUE. WHILE THIS IS AN INTERMEDIATE ISSUE AND SOME DAYS MY CAR SHUTS OF FINE WHILE OTHERS IT TAKES MOVING THE SHIFTER BACK BETWEEN GEARS IN ORDER FOR THE ELECTRICAL COMPONENT TO RECOGNIZE IT'S PARKED - I WILL TRY TO CONTACT MY LOCAL DEALER FOR HELP BUT I AM FILING THIS COMPLAINT TO PUT GM & NHTSA ON NOTICE REGARDING THIS WELL KNOWN DEFECT THAT IS NOT BEING ADDRESSED AND COULD BE A SERIOUS SAFETY ISSUE. GM SHOULD DO THE RIGHT THING AND ADDRESS THIS ISSUE WHICH IS WELL DOCUMENTED - BY PROVIDING A RECALL. PLEASE SEE THESE SIMILAR COMPLAINTS FOR GM ON VARIOUS MODELS SHOWING "SHIFT TO PARK": HTTPS://WWW.CARCOMPLAINTS.COM/NEWS/2018/GMC-ACADIA-SHIFT-TO-PARK-ISSUES-LAWSUIT.SHTML HTTPS://WWW.REDDIT.COM/R/VOLT/COMMENTS/8ET2NW/ACTION_REQUIRED_SHIFT_TO_PARK/ HTTPS://ABC6ONYOURSIDE.COM/ON-YOUR-SIDE/WESTERVILLE-FAMILY-IN-LIMBO-AS-GM-LEAVES-THEM-IN-DARK-OVER-SHIFT-TO-PARK-ISSUE HTTPS://WWW.CRUZETALK.COM/THREADS/SHIFT-TO-PARK-LOCK-PROBLEM.51401/ HTTPS://REPAIRPAL.COM/CANNOT-TURN-OFF-2016-VOLT-ACTION-REQUIRED-SHIFT-TO-PARK-522
NHTSA ODI #11308853
50 miles · Oct 31, 2019
EngineFuel/propulsion SystemPower Train
ON MY 2ND DAY OF OWNERSHIP WHEN THE VEHICLE HAD 50 MILES ON IT THE VEHICLE STOPPED WITHOUT WARNING IN THE MIDDLE OF THE HIGHWAY. WHILE DRIVING 65 MPH ON INTERSTATE 5 (4 LANE HIGHWAY) THE VEHICLE BEGAN SMOKING AND LOST ALL PROPULSION AND FORWARD POWER. THE VEHICLE HAD JUST CHANGED FROM ELECTRIC POWER TO GAS POWER. THE WARNING MES…
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ON MY 2ND DAY OF OWNERSHIP WHEN THE VEHICLE HAD 50 MILES ON IT THE VEHICLE STOPPED WITHOUT WARNING IN THE MIDDLE OF THE HIGHWAY. WHILE DRIVING 65 MPH ON INTERSTATE 5 (4 LANE HIGHWAY) THE VEHICLE BEGAN SMOKING AND LOST ALL PROPULSION AND FORWARD POWER. THE VEHICLE HAD JUST CHANGED FROM ELECTRIC POWER TO GAS POWER. THE WARNING MESSAGE DISPLAYED WAS "ACTION REQUIRED - SHIFT TO PARK". THE ORANGE ENGINE SYMBOL WAS DISPLAYED. THEN THE STEERING WHEEL LOCKED UP, ALL DISPLAYS AND CONTROLS WERE TURNED OFF. LUCKILY I WAS ABLE TO MOVE FROM THE 2ND TO FAR RIGHT LANE OF 4 AND GET JUST OFF THE HIGHWAY. THERE WAS JUST ENOUGH SPACE TO GLIDE THE VEHICLE TO A STOP OFF THE HIGHWAY. HOWEVER, THE I5 IS THE PRIMARY TRUCKING ROUTE AND IN THIS UPHILL LOCATION ALL SEMI TRUCKS ARE REQUIRED TO DRIVE IN THE FAR RIGHT LANE. MY VEHICLE WAS SWAYED CONTINUOUSLY BY THE LARGE HIGH PROFILE VEHICLES FOR OVER 2 HOURS. A CHP STAYED WITH ME WITH FLASHING LIGHTS TO ATTEMPT TO MOVE VEHICLES TO THE LEFT. THE VEHICLE WAS TOWED TO THE NEAREST DEALERSHIP. THE VEHICLE WAS REPLACED BY THE DEALERSHIP WITH ANOTHER VEHICLE AFTER 9 HOURS. HOWEVER, I AM NOW IN ARBITRATION WITH GM OVER THE SAME ISSUE "ACTION REQUIRED - SHIFT TO PARK" WITH THE 2ND VEHICLE. THE VEHICLE HAS BEEN IN SERVICE FOR 95 DAYS OVER AN 8 MONTH PERIOD AND I AM SEEKING A VEHICLE BUYBACK UNDER THE CALIFORNIA LEMON LAW WITH THE BBB FOR IMPAIRMENT OF VALUE, USE, AND SAFELY.
NHTSA ODI #11277426
24,323 miles · Oct 31, 2019
EngineFuel/propulsion SystemPower Train
WHILE ENTERING THE HIGHWAY THE VEHICLE EXPERIENCED SIGNIFICANT LOSS OF PROPULSION AND THE WARNING DISPLAYED "PROPULSION POWER REDUCED".THIS LOSS OF POWER OCCURRED WHEN THE VEHICLE SWITCHED FROM ELECTRIC TO GAS POWER. I HAVE EXPERIENCED ISSUES WITH THE VEHICLE SWITCHING FROM ELECTRIC TO GAS REGULARLY AND IT SPUTTERS AND BUCKS. AF…
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WHILE ENTERING THE HIGHWAY THE VEHICLE EXPERIENCED SIGNIFICANT LOSS OF PROPULSION AND THE WARNING DISPLAYED "PROPULSION POWER REDUCED".THIS LOSS OF POWER OCCURRED WHEN THE VEHICLE SWITCHED FROM ELECTRIC TO GAS POWER. I HAVE EXPERIENCED ISSUES WITH THE VEHICLE SWITCHING FROM ELECTRIC TO GAS REGULARLY AND IT SPUTTERS AND BUCKS. AFTER A FEW MILES THE SPUTTERING AND ROUGH CHANGE TO GAS WILL DISSIPATE. ON THIS OCCASION THE POWER LOSS WAS SIGNIFICANT AND DANGEROUS. I WOULD NOT HAVE HAD THE POWER OR PROPULSION TO ENTER THE HIGHWAY. I WAS ABLE TO DIVERT TO CITY STREETS AND GET HOME AT SPEEDS UNDER 40 MPH. THE VEHICLE WOULD NOT GO ANY FASTER. THE VEHICLE WAS SERVICED BY MY LOCAL CHEVY DEALER AND OUT OF SERVICE FOR 18 DAYS WITH APPROXIMATELY 250 MILES OF ROAD TESTING WHILE IN SERVICE. I NO LONGER BELIEVE THIS VEHICLE TO BE SAFE OR RELIABLE AND AM ENGAGED IN ARBITRATION UNDER THE CALIFORNIA LEMON LAW AND THE BBB.
NHTSA ODI #11277420
18,881 miles · Oct 31, 2019
EngineFuel/propulsion SystemPower Train
WHILE DRIVING ON A BUSY SURFACE STREET THE VEHICLE LOST ALL PROPULSION AND STALLED. STEERING LOCKED UP, WAS DISABLED, AND ELECTRIC POWER STOPPED. THE WARNING LIGHT READ "ACTION REQUIRED - SHIFT TO PARK'. THIS STALL IS IMMEDIATE AND HIGHLY DANGEROUS. I WAS ABLE TO GLIDE TO THE SIDE OF THE ROAD WITHOUT BEING IN OR CAUSING AN ACCID…
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WHILE DRIVING ON A BUSY SURFACE STREET THE VEHICLE LOST ALL PROPULSION AND STALLED. STEERING LOCKED UP, WAS DISABLED, AND ELECTRIC POWER STOPPED. THE WARNING LIGHT READ "ACTION REQUIRED - SHIFT TO PARK'. THIS STALL IS IMMEDIATE AND HIGHLY DANGEROUS. I WAS ABLE TO GLIDE TO THE SIDE OF THE ROAD WITHOUT BEING IN OR CAUSING AN ACCIDENT. THE ORANGE ENGINE SYMBOL WAS ILLUMINATED. ALL SYSTEMS SHUT DOWN ON THE VEHICLE. THE CAR WAS TOWED TO THE NEAREST CHEVY DEALERSHIP BUT WE WERE UNABLE TO TURN OFF THE VEHICLE OR SHIFT IT IN NEUTRAL. THE CAR START BUTTON WOULD NOT TURN OFF THE VEHICLE AND HAD TO BE TOWED RUNNING AND THE BATTERY DISABLED AT THE DEALERSHIP.
NHTSA ODI #11277419
33,774 miles · Oct 4, 2019
Air BagsElectrical SystemFuel/propulsion System
THE BATTERY ENERGY CONTROL MODULE FAILED AT ~34K MILES. THIS HAPPENED WHEN THE VEHICLE WAS PARKED AND PREVENTED THE CAR FROM USING THE BATTERIES FOR DRIVING. THE FAILURE MADE THE CAR UNUSABLE.
NHTSA ODI #11266037
NHTSA investigations
2PE23022 · Loss Of Motive Power Due To The Battery Energy Control Module
Opened Nov 29, 2023 · Closed Mar 3, 2025
Status: closed (inferred from source dates) · Electrical System; Electrical System:propulsion System; Electrical System:propulsion System:traction Battery:management System/energy Control Module (bms/becm)
On November 29, 2023, the Office of Defects Investigations (ODI) opened PE23022 to investigate allegations of a loss of motive power, including a stall, reduced power state, and/or a no start condition due to the Battery Energy Control Module (BECM) in model year (MY) 2016-2019 Chevrolet Volt passenger car vehicles manufactured by General Motors (GM). The BECM is located within the high voltage electric vehicle (EV) battery pack and monitors the temperature, current, and voltage of the high voltage battery cell groups. GM stated that the root cause was identified as an internal failure leading to a loss of communication within the BECM and does not pose a risk to motor vehicle safety. GM further stated that the failure cannot result in a complete stall, only a reduced power mode, no start condition, or a no charge condition. GM additionally stated that if these conditions occur, the driver will be warned via a Malfunction Indicator Lamp (MIL) and/or a reduced-propulsion message in the Driver Information Center (DIC). Data received and analyzed by ODI from all sources indicates that nearly all related BECM failures caused conditions aligning with GM’s predicted outcomes. Despite the large number of warranty claims, nearly all failures were not safety-related, i.e., not a stall or reduced power mode. ODI isaware of a single minor crash and no injuries or deaths. In March 2024, GM issued Special Coverage N232432680, which was mailed to consumers, addressing BECM failures in certain MY 2016-2018 Chevrolet Volt vehicles. This special coverage provides an extension of the warranty coverage for the BECM from 8 years / 100,000 miles to 15 years / 150,000 miles for all 2016-2018 Chevrolet Volts. Additionally, GM stated that replacement components are sourced from a different supplier and not susceptible to the failure. In view of the Special Coverage issued by GM, the existing warranty coverage already in place, and the low number of safety-related occurrences, ODI is closing this Preliminary Evaluation (PE). The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Additional source detail variants (3)
Electrical System
On November 29, 2023, the Office of Defects Investigations (ODI) opened PE23022 to investigate allegations of a loss of motive power, including a stall, reduced power state, and/or a no start condition due to the Battery Energy Control Module (BECM) in model year (MY) 2016-2019 Chevrolet Volt passenger car vehicles manufactured by General Motors (GM). The BECM is located within the high voltage electric vehicle (EV) battery pack and monitors the temperature, current, and voltage of the high voltage battery cell groups. GM stated that the root cause was identified as an internal failure leading to a loss of communication within the BECM and does not pose a risk to motor vehicle safety. GM further stated that the failure cannot result in a complete stall, only a reduced power mode, no start condition, or a no charge condition. GM additionally stated that if these conditions occur, the driver will be warned via a Malfunction Indicator Lamp (MIL) and/or a reduced-propulsion message in the Driver Information Center (DIC). Data received and analyzed by ODI from all sources indicates that nearly all related BECM failures caused conditions aligning with GM’s predicted outcomes. Despite the large number of warranty claims, nearly all failures were not safety-related, i.e., not a stall or reduced power mode. ODI isaware of a single minor crash and no injuries or deaths. In March 2024, GM issued Special Coverage N232432680, which was mailed to consumers, addressing BECM failures in certain MY 2016-2018 Chevrolet Volt vehicles. This special coverage provides an extension of the warranty coverage for the BECM from 8 years / 100,000 miles to 15 years / 150,000 miles for all 2016-2018 Chevrolet Volts. Additionally, GM stated that replacement components are sourced from a different supplier and not susceptible to the failure. In view of the Special Coverage issued by GM, the existing warranty coverage already in place, and the low number of safety-related occurrences, ODI is closing this Preliminary Evaluation (PE). The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Electrical System:propulsion System
On November 29, 2023, the Office of Defects Investigations (ODI) opened PE23022 to investigate allegations of a loss of motive power, including a stall, reduced power state, and/or a no start condition due to the Battery Energy Control Module (BECM) in model year (MY) 2016-2019 Chevrolet Volt passenger car vehicles manufactured by General Motors (GM). The BECM is located within the high voltage electric vehicle (EV) battery pack and monitors the temperature, current, and voltage of the high voltage battery cell groups. GM stated that the root cause was identified as an internal failure leading to a loss of communication within the BECM and does not pose a risk to motor vehicle safety. GM further stated that the failure cannot result in a complete stall, only a reduced power mode, no start condition, or a no charge condition. GM additionally stated that if these conditions occur, the driver will be warned via a Malfunction Indicator Lamp (MIL) and/or a reduced-propulsion message in the Driver Information Center (DIC). Data received and analyzed by ODI from all sources indicates that nearly all related BECM failures caused conditions aligning with GM’s predicted outcomes. Despite the large number of warranty claims, nearly all failures were not safety-related, i.e., not a stall or reduced power mode. ODI isaware of a single minor crash and no injuries or deaths. In March 2024, GM issued Special Coverage N232432680, which was mailed to consumers, addressing BECM failures in certain MY 2016-2018 Chevrolet Volt vehicles. This special coverage provides an extension of the warranty coverage for the BECM from 8 years / 100,000 miles to 15 years / 150,000 miles for all 2016-2018 Chevrolet Volts. Additionally, GM stated that replacement components are sourced from a different supplier and not susceptible to the failure. In view of the Special Coverage issued by GM, the existing warranty coverage already in place, and the low number of safety-related occurrences, ODI is closing this Preliminary Evaluation (PE). The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Electrical System:propulsion System:traction Battery:management System/energy Control Module (bms/becm)
On November 29, 2023, the Office of Defects Investigations (ODI) opened PE23022 to investigate allegations of a loss of motive power, including a stall, reduced power state, and/or a no start condition due to the Battery Energy Control Module (BECM) in model year (MY) 2016-2019 Chevrolet Volt passenger car vehicles manufactured by General Motors (GM). The BECM is located within the high voltage electric vehicle (EV) battery pack and monitors the temperature, current, and voltage of the high voltage battery cell groups. GM stated that the root cause was identified as an internal failure leading to a loss of communication within the BECM and does not pose a risk to motor vehicle safety. GM further stated that the failure cannot result in a complete stall, only a reduced power mode, no start condition, or a no charge condition. GM additionally stated that if these conditions occur, the driver will be warned via a Malfunction Indicator Lamp (MIL) and/or a reduced-propulsion message in the Driver Information Center (DIC). Data received and analyzed by ODI from all sources indicates that nearly all related BECM failures caused conditions aligning with GM’s predicted outcomes. Despite the large number of warranty claims, nearly all failures were not safety-related, i.e., not a stall or reduced power mode. ODI isaware of a single minor crash and no injuries or deaths. In March 2024, GM issued Special Coverage N232432680, which was mailed to consumers, addressing BECM failures in certain MY 2016-2018 Chevrolet Volt vehicles. This special coverage provides an extension of the warranty coverage for the BECM from 8 years / 100,000 miles to 15 years / 150,000 miles for all 2016-2018 Chevrolet Volts. Additionally, GM stated that replacement components are sourced from a different supplier and not susceptible to the failure. In view of the Special Coverage issued by GM, the existing warranty coverage already in place, and the low number of safety-related occurrences, ODI is closing this Preliminary Evaluation (PE). The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
DP22005 · Pedestrian Alert Sounds
Opened Jan 27, 2023 · Closed Aug 7, 2023
Status: closed (inferred from source dates) · Electrical System:propulsion System
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.