NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
697 reports1,000 miles · May 8, 2017
Fuel/propulsion SystemPower Train
WE'VE HAD A TOTAL OF THREE CHEVY VOLTS. TWO HAVE BEEN GREAT, BUT THE 2017 VOLT WE GOT IN FEBRUARY 2017 HAS BEEN AWFUL -- THE CAR COMPLETELY LOSES POWER WITHOUT WARNING. IT HAPPENS WHILE DRIVING, BOTH ON THE FREEWAY AND SURFACE STREETS. AND JUST TO CLARIFY, I DON'T MEAN THE CAR WAS OUT OF ELECTRICITY OR OUT OF GAS (EACH TIME…
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WE'VE HAD A TOTAL OF THREE CHEVY VOLTS. TWO HAVE BEEN GREAT, BUT THE 2017 VOLT WE GOT IN FEBRUARY 2017 HAS BEEN AWFUL -- THE CAR COMPLETELY LOSES POWER WITHOUT WARNING. IT HAPPENS WHILE DRIVING, BOTH ON THE FREEWAY AND SURFACE STREETS. AND JUST TO CLARIFY, I DON'T MEAN THE CAR WAS OUT OF ELECTRICITY OR OUT OF GAS (EACH TIME THIS HAPPENED, THE CAR HAD BOTH). WE WILL BE DRIVING ALONG WHEN, OUT OF THE BLUE, THE CAR SIMPLY JUST STOPS RUNNING, LEAVING US TO DO OUR BEST TO GET IT OUT OF THE ROADWAY WITHOUT GETTING HIT. THE CAR (WHICH ONLY HAS ABOUT 1,000 MILES ON IT) HAS BEEN IN THE SHOP OFF AND ON FOR ABOUT A MONTH NOW. WE HAVE BEEN VERY DISAPPOINTED BY HOW BOTH GM AND THE DEALER HAVE BEEN HANDLING THE SITUATION.
NHTSA ODI #10984356
Mileage unknown · May 2, 2017
Exterior LightingService Brakes
THIS ELECTRIC CAR HAS REGENERATIVE BRAKING. BESIDES BEING IN THE REGULAR BRAKING, THERE IS A PURE REGENERATIVE BRAKING PADDLE ON THE STEERING WHEEL. BUT WHEN YOU USE THIS BRAKE, THE BRAKE LIGHTS TO NOT TURN ON. THIS IS A MAJOR HAZARD AS I USE THIS BRAKE ALL THE TIME AND CARS BEHIND ME DO NOT KNOW I AM BRAKING AND HAVE ALMOST RE…
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THIS ELECTRIC CAR HAS REGENERATIVE BRAKING. BESIDES BEING IN THE REGULAR BRAKING, THERE IS A PURE REGENERATIVE BRAKING PADDLE ON THE STEERING WHEEL. BUT WHEN YOU USE THIS BRAKE, THE BRAKE LIGHTS TO NOT TURN ON. THIS IS A MAJOR HAZARD AS I USE THIS BRAKE ALL THE TIME AND CARS BEHIND ME DO NOT KNOW I AM BRAKING AND HAVE ALMOST REAR ENDED ME. CHEVY DEALER SAYS THAT IS THE WAY IT IS DESIGNED AND IS FUNCTIONING PERFECTLY. WHY HAS THIS BEEN APPROVED TO DESIGN A BRAKING SYSTEM WITHOUT ANY WARNING LIGHTS? WHAT CAN BE DONE ABOUT THIS?
NHTSA ODI #10983112
5,000 miles · Apr 6, 2017
EnginePower TrainVehicle Speed Control
WE BOUGHT A NEW 2017 CHEVY VOLT AT THE END OF DECEMBER 2016 AND HAD OUR FIRST ISSUE IN EARLY FEBRUARY 2017. WHAT HAPPENED THAT FIRST TIME WAS ON (2/3/2017) WHILE DRIVING THROUGH TRAFFIC THE CAR WITHOUT WARNING TURNED OFF THE ELECTRIC WHEEL MOTORS AND WOULD NOT ALLOW US TO POWER THE CAR PROPERLY TO GET THE CAR TO THE BERM. WE WER…
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WE BOUGHT A NEW 2017 CHEVY VOLT AT THE END OF DECEMBER 2016 AND HAD OUR FIRST ISSUE IN EARLY FEBRUARY 2017. WHAT HAPPENED THAT FIRST TIME WAS ON (2/3/2017) WHILE DRIVING THROUGH TRAFFIC THE CAR WITHOUT WARNING TURNED OFF THE ELECTRIC WHEEL MOTORS AND WOULD NOT ALLOW US TO POWER THE CAR PROPERLY TO GET THE CAR TO THE BERM. WE WERE NEARLY WERE HIT TWICE WHILE TRYING TO STEER THE CAR OFF OF THE INTERSTATE HIGHWAY AS IT DECELERATED. THE CAR WAS COMPLETELY DISABLED AN NEEDED TOWED BACK TO THE DEALERSHIP. AFTER THE DEALERSHIP HAD THE CAR FOR A WEEK THEY RETURNED IT WITH THE EXPLANATION THAT THE CAR NEEDED TO DO SOFTWARE UPDATES AND THEY WERE TOO LARGE TO DO OVER THE CAR'S SATELLITE SYSTEM ' BUT THEY NEVER GAVE US ANY INDICATION OF HOW WE WOULD HAVE BEEN INFORMED OF THE NEED FOR SUCH AN UPDATE. WE THEN HAD ANOTHER NEAR ACCIDENT TODAY (4/6/2017) ON THE SAME HIGHWAY AND WE WERE NEARLY PUSHED UP UNDER A SEMI WHILE TRYING TO MANEUVER OFF OF THE HIGHWAY AT 75 MILES AN HOUR. AGAIN, THE CAR WITHOUT WARNING SHUT OFF THE ELECTRIC WHEEL MOTORS AND WARNED US TO 'PUT THE CAR IN PARK'. IT HAPPENED IN EXACTLY THE SAME WAY AS IN FEBRUARY BUT NO WARNINGS HAD BEEN ISSUED FOR OUR CAR AND WE ALMOST HAD A HORRIBLE ACCIDENT. MY CONCERN IS FOR MY FAMILY AND COLLEAGUES SAFETY AT THIS POINT AND I DON'T WANT ANYONE DRIVING IN THIS CAR. I HATE TO THINK OF WHAT WOULD HAVE HAPPENED TODAY IF MY DAUGHTER, WHO IS A BRAND NEW DRIVER, WOULD HAVE HAD TO DEAL WITH THE SAME SITUATION SANDWICHED IN BY TWO SEMI-TRUCKS AND WITH A CAR TRYING TO PASS ON THE SHOULDER AROUND HER ' IT COULD HAVE BEEN FAR WORSE. I AM IN SEVERAL CHEVY VOLT GROUPS ON FACEBOOK AND PEOPLE WHO LOVED THE GENERATION 1 OF THESE CARS ARE HAVING MAJOR ISSUES FROM BATTERY PACKS DYING, TO DRIVE TRAIN ISSUES, TO SPEED CONTROL PROBLEMS AND MORE WHERE PEOPLE ARE HAVING MAJOR SYSTEM PIECES REPLACED 2-3 TIMES IN THE FIRST FEW MONTHS THEY OWN THE CARS.
NHTSA ODI #10971015
500 miles · Mar 13, 2017
EngineFuel/propulsion System
STRONG BURNING AND/OR FUEL SMELL FILLED THE PASSENGER CABIN. THIS HAS HAPPENED ON SEVERAL OCCASIONS MOST NOTABLY WHEN THE CAR WAS OPERATING IN 'ENGINE RUNNING DUE TO TEMPERATURE' MODE. THE ODOR WAS STRONG ENOUGH TO CAUSE DIZZINESS AND REQUIRED TO THE WINDOWS TO BE OPENED TO VENT THE CABIN. THE SMELL AND ORDER NOW IS PERSISTENT E…
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STRONG BURNING AND/OR FUEL SMELL FILLED THE PASSENGER CABIN. THIS HAS HAPPENED ON SEVERAL OCCASIONS MOST NOTABLY WHEN THE CAR WAS OPERATING IN 'ENGINE RUNNING DUE TO TEMPERATURE' MODE. THE ODOR WAS STRONG ENOUGH TO CAUSE DIZZINESS AND REQUIRED TO THE WINDOWS TO BE OPENED TO VENT THE CABIN. THE SMELL AND ORDER NOW IS PERSISTENT EVEN WHEN DRIVING IN ALL-ELECTRIC MODE. MY INTENSION IS TO REPLACE THE CABIN AIR FILTER WITH A CARBON AIR FILTER PER 16-NA-127.
NHTSA ODI #10960324
4,500 miles · Mar 7, 2017
Fuel/propulsion System
MY 2017 CHEVY VOLT SUDDENLY LOST ALL POWER WHILE I WAS DRIVING ABOUT 35 MPH IN ELECTRIC MODE. THE CAR HAS BEEN DRIVEN ABOUT 4500 MILES. A "SHIFT TO PARK" MESSAGE WAS DISPLAYED ON THE DASHBOARD. I COULD NOT RESTART THE CAR AND HAD IT TOWED TO A DEALER FOR SERVICE. THE DEALER REPLACED THE POWER INVERTER MODULE AND UPDATED THE S…
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MY 2017 CHEVY VOLT SUDDENLY LOST ALL POWER WHILE I WAS DRIVING ABOUT 35 MPH IN ELECTRIC MODE. THE CAR HAS BEEN DRIVEN ABOUT 4500 MILES. A "SHIFT TO PARK" MESSAGE WAS DISPLAYED ON THE DASHBOARD. I COULD NOT RESTART THE CAR AND HAD IT TOWED TO A DEALER FOR SERVICE. THE DEALER REPLACED THE POWER INVERTER MODULE AND UPDATED THE SOFTWARE. AFTER THE REPAIRS, THE ELECTRIC MOTOR HAS STALLED ON TWO OCCASIONS AND THE CAR SHAKES VIOLENTLY THEN SWITCHES INTO THE GASOLINE ENGINE MODE.
NHTSA ODI #10959016
2,043 miles · Feb 27, 2017
Steering
THE POWER STEERING FAILED WHILE DRIVING APPROXIMATELY 50 MPH ON A MILD CURVE ON A WET OREGON STATE HIGHWAY. IT BECAME EXTREMELY DIFFICULT TO STEER THE VEHICLE. THIS SURELY COULD HAVE CAUSED INJURY OR DEATH HAD THERE BEEN A SHARP CURVE OR PEDESTRIAN OR VEHICLE TO AVOID. I AM HAVING THE VEHICLE TOWED TO THE DEALERSHIP FOR REPAIR. …
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THE POWER STEERING FAILED WHILE DRIVING APPROXIMATELY 50 MPH ON A MILD CURVE ON A WET OREGON STATE HIGHWAY. IT BECAME EXTREMELY DIFFICULT TO STEER THE VEHICLE. THIS SURELY COULD HAVE CAUSED INJURY OR DEATH HAD THERE BEEN A SHARP CURVE OR PEDESTRIAN OR VEHICLE TO AVOID. I AM HAVING THE VEHICLE TOWED TO THE DEALERSHIP FOR REPAIR. THIS VEHICLE HAS 2043 MILES ON IT.
NHTSA ODI #10957281
8,000 miles · Feb 1, 2017
Fuel/propulsion System
ON 3 SEPARATE OCCASION MY CAR HAS DIED ON THE HIGHWAY AND LOST ACCELERATION, GM ISSUED A RECALL BETWEEN MY FIRST AND SECOND INCIDENTS AND THE RECALL FIX DID NOT FIX THE ISSUE AS THIS HAPPENED A THIRD TIME. NOV 14TH WAS THE FIRST TIME BUT IT HAS HAPPENED MULTIPLE TIMES. THIS IS VERY DANGEROUS AND PEOPLE WILL PROBABLY DIE BECAU…
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ON 3 SEPARATE OCCASION MY CAR HAS DIED ON THE HIGHWAY AND LOST ACCELERATION, GM ISSUED A RECALL BETWEEN MY FIRST AND SECOND INCIDENTS AND THE RECALL FIX DID NOT FIX THE ISSUE AS THIS HAPPENED A THIRD TIME. NOV 14TH WAS THE FIRST TIME BUT IT HAS HAPPENED MULTIPLE TIMES. THIS IS VERY DANGEROUS AND PEOPLE WILL PROBABLY DIE BECAUSE OF THIS. THE ERROR MESSAGE ON THE SCREEN IS PROPULSION POWER IS REDUCED
NHTSA ODI #10948908
6,239 miles · Jan 23, 2017
Electrical SystemLatches/locks/linkages
IF THE CAR LOSES POWER, AND THE DOORS HAVE LOCKED (DO AUTOMATICALLY), THERE IS NO WAY TO MANUALLY UNLOCK THE DOORS. THE PLUNGER IS RECESSED SO MUCH IT'S IMPOSSIBLE TO RAISE IT TO UNLOCK. I CONTACTED CHEVROLET, THEY HAVE NO ANSWER ON HOW TO OVERCOME THIS. I HAVE A FRIEND WHO WAS LOCKED IN ANOTHER TYPE OF VEHICLE WHEN LOST POWER, …
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IF THE CAR LOSES POWER, AND THE DOORS HAVE LOCKED (DO AUTOMATICALLY), THERE IS NO WAY TO MANUALLY UNLOCK THE DOORS. THE PLUNGER IS RECESSED SO MUCH IT'S IMPOSSIBLE TO RAISE IT TO UNLOCK. I CONTACTED CHEVROLET, THEY HAVE NO ANSWER ON HOW TO OVERCOME THIS. I HAVE A FRIEND WHO WAS LOCKED IN ANOTHER TYPE OF VEHICLE WHEN LOST POWER, BUT COULD MANUALLY UNLOCK THE DOORS. TV NEWS THIS MORNING SHOWED A PERSON TRAPPED IN A CAR WITH NO POWER, BUT WAS ABLE TO MANUALLY UNLOCK THE DOORS. THE MESSAGE WAS TO LEARN HOW TO MANUALLY UNLOCK THE CAR IN CASE OF EMERGENCY. PLEASE SEE IF THIS CAN BE REMEDIED, IT MAY SAVE LIVES. THANK YOU, GRATEFUL TAXPAYER. *TR
NHTSA ODI #10947052
4,000 miles · Jan 11, 2017
Electronic Stability Control (esc)EngineFuel/propulsion System
WE ARE WRITING TO VOICE A VERY DISCONCERTING AND DANGEROUS INCIDENT WITH OUR 2017 CHEVY VOLT. ON A RETURN TRIP AT DARK FROM CLEVELAND, OHIO TO ROCHESTER, NY ON 12-26-16, OUR ENGINE SUDDENLY GAVE WARNING BEEPS WHICH PROMPTED MY HUSBAND TO PULL OVER TO THE SHOULDER ON INTERSTATE 90 IN ERIE, PA. WE HAD ALL OF 15-20 SECONDS TO GE…
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WE ARE WRITING TO VOICE A VERY DISCONCERTING AND DANGEROUS INCIDENT WITH OUR 2017 CHEVY VOLT. ON A RETURN TRIP AT DARK FROM CLEVELAND, OHIO TO ROCHESTER, NY ON 12-26-16, OUR ENGINE SUDDENLY GAVE WARNING BEEPS WHICH PROMPTED MY HUSBAND TO PULL OVER TO THE SHOULDER ON INTERSTATE 90 IN ERIE, PA. WE HAD ALL OF 15-20 SECONDS TO GET OFF THIS HEAVILY TRAFFICKED HIGHWAY WHEN THE CAR LITERALLY SHUT DOWN.. NOTHING WORKED NOT EVEN THE WARNING FLASHERS. WE COULD NOT OPEN THE TRUNK, AND HAD WE NOT KEPT ONE DOOR OPEN WE WOULD NOT HAVE BEEN ABLE TO ENTER THE CAR. IN SUMMARY, THE TOTAL FAILURE WE ENCOUNTERED SHOWS THE SERIOUS SAFETY ISSUE RELATED TO THIS CAR. WE ARE NOW RELUCTANT TO TAKE IT ON TRIPS THIS INCIDENT COULD HAVE RESULTED IN A SERIOUS ACCIDENT HAD WE NOT BEEN ABLE TO PULL OFF ONTO THE SHOULDER.
NHTSA ODI #10944472
700 miles · Nov 23, 2016
Electrical SystemFuel/propulsion SystemUnknown Or Other
THE VEHICLE CENTER DISPLAY DOES NOT WORK RELIABLY. MOST CONCERNING TO SAFETY IS THE FACT THAT THIS RENDERS THE REVERSE CAMERA INOPERABLE. OTHER THINGS THAT DON'T WORK INCLUDE BLUETOOTH, RADIO, ON STAR, CONTROLS FOR THE VEHICLE SETUP AND CHARGING PARAMETERS, AIR CONDITIONING, ENERGY USAGE DISPLAY, AND SO ON. AFTER SEVERAL …
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THE VEHICLE CENTER DISPLAY DOES NOT WORK RELIABLY. MOST CONCERNING TO SAFETY IS THE FACT THAT THIS RENDERS THE REVERSE CAMERA INOPERABLE. OTHER THINGS THAT DON'T WORK INCLUDE BLUETOOTH, RADIO, ON STAR, CONTROLS FOR THE VEHICLE SETUP AND CHARGING PARAMETERS, AIR CONDITIONING, ENERGY USAGE DISPLAY, AND SO ON. AFTER SEVERAL SERVICE VISITS AND CALLS TO GM, THEY DETERMINED THAT IF YOU LEAVE A PHONE PLUGGED INTO THE USB CORD FOR THE AUDIO SYSTEM, AND POWER THE CAR OFF WITHOUT FIRST UNPLUGGING THE PHONE FROM THE CHARGER AND EVEN THE CHARGER CORD FROM THE USB PORT (WITH NO PHONE PLUGGED IN) OR ELSE THE NEXT TIME YOU START THE CAR THE SCREEN AND FUNCTIONS ON IT WILL BE INOPERABLE UNTIL THE CAR IS POWERED OFF FOR SEVERAL MINUTES. WHETHER OR NOT I UNPLUG MY PHONE WHEN I TURN OFF THE CAR SHOULD PREVENT THE BACKUP CAMERA FROM FUNCTIONING NOR THE DETAILS ABOUT ELECTRIC CAR CHARGE USAGE. GM HAS TOLD ME THERE IS NOTHING MORE THEY CAN DO, THAT'S JUST HOW IT WORKS.
NHTSA ODI #10927738
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.