NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
182 reportsClear category filter90,382 miles · Mar 8, 2024
Engine
The contact owns a 2017 Chevrolet Volt. The contact stated while driving at various speeds, the vehicle lost motive power and stalled. The contact stated that the vehicle was restarted but stalled again after driving for several miles. The check engine warning light was illuminated. The vehicle was taken to the local dealer, whe…
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The contact owns a 2017 Chevrolet Volt. The contact stated while driving at various speeds, the vehicle lost motive power and stalled. The contact stated that the vehicle was restarted but stalled again after driving for several miles. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the EGR belt needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,382.
NHTSA ODI #11576208
Mileage unknown · Feb 26, 2024
Engine
I purchased my chevy volt on 8/17/2022. Early to mid November 2022 the check engine light appeared on the dash. It was determined the EGR valve needed to be replaced. I took the vehicle to Ferman Chevy Tampa on 11/21/2022. They replaced the EGR valve and we paid $1346.07 for the work completed. Then late December 2022 - Early J…
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I purchased my chevy volt on 8/17/2022. Early to mid November 2022 the check engine light appeared on the dash. It was determined the EGR valve needed to be replaced. I took the vehicle to Ferman Chevy Tampa on 11/21/2022. They replaced the EGR valve and we paid $1346.07 for the work completed. Then late December 2022 - Early January 2023 the check engine light appeared once again on the dash. It was determined that the EGR valve placed in the vehicle was a faulty part and the volt needed a new EGR valve. We waited approximately 1 month for the repair. Early November 2023 the check engine light came on once again. After inspection it was determined that once again a faulty EGR valve was placed in the vehicle. This is the 3rd time the same issue has occurred in a year. Today is Monday 2/26/2024 and volt has yet to be repaired, that is nearly 3 months! Apparently the part is not available and GM has no idea when it will be available. We were recently told possibly 2025. My husband came across some information stating that 1,600 people are currently waiting for an EGR valve for their Chevy Volt and that 2,000 have been ordered, but no one knows when they will arrive and after 3 EGR valvles going bad in one year even if the part becomes available I don't know if that will fix the problem or if it will just happen again. The car is inoperable for any long distance driving. We paid $26,431.83 for this vehicle a little over a year ago and its basically inoperable with solution from Chevy or GM. Aside from this issue I love my Chevy Volt. Its actually the 3rd one I have owned, but this is not fair to me as the consumer when they cannot reslove the issue. Thank you for you consideration in this matter.
NHTSA ODI #11574059
Mileage unknown · Feb 21, 2024
Engine
Sudden failure of exhaust gas recirculation valve resulted in unexpected significant power loss on limited access highway and immediate loss of speed and acceleration. Driver was able to move to side of road with care and proceed in "limp home" mode. No warning lights activated prior to this event. Event could have been catast…
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Sudden failure of exhaust gas recirculation valve resulted in unexpected significant power loss on limited access highway and immediate loss of speed and acceleration. Driver was able to move to side of road with care and proceed in "limp home" mode. No warning lights activated prior to this event. Event could have been catastrophic if it occurred during heavy traffic conditions. Occupants could have been trapped in vehicle stuck in left or middle lane with no way to safely merge into oncoming high speed traffic. Car is available for inspection. GM dealer has provided the diagnosis of repair and suggested replacement of ERG valve and ERG valve cooler. This is a known defect and GM is unable to provide timely delivery of replacement parts. Waiting period of up to six months was predicted by GM dealer. Driver reports posted on internet forums reflect many Volt drivers reporting these same events and concerns.
NHTSA ODI #11573078
Mileage unknown · Feb 18, 2024
Engine
Recall work was performed by dealer for EVAP pipe. Insulative repair was used because pipe had not worn through. This was advised to me from dealer that performed recall work. June 2023 took vehicle to dealer due to check engine light being on. Was advised that insulation that was applied to resolve recall had "slipped" causing …
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Recall work was performed by dealer for EVAP pipe. Insulative repair was used because pipe had not worn through. This was advised to me from dealer that performed recall work. June 2023 took vehicle to dealer due to check engine light being on. Was advised that insulation that was applied to resolve recall had "slipped" causing EVAP to develop a hole and was needing to be replaced at this point. Opened case with GM with no resolution due to failed recall work. Did not feel I should be responsible for labor due to failure of their recall fix.
NHTSA ODI #11572612
84,000 miles · Feb 15, 2024
Engine
The contact owns a 2017 Chevrolet Volt. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle failed to restart. The check engine warning light was illuminated. The vehicle was towed to the dealer,…
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The contact owns a 2017 Chevrolet Volt. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle failed to restart. The check engine warning light was illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the engine valves. The vehicle was not repaired due to parts not being available. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 84,000.
NHTSA ODI #11572075
Mileage unknown · Feb 7, 2024
Electrical SystemEngineFuel/propulsion System
I was traveling at 75 mph with the cruise control on when a message came on about reduced purpulsion. My vehicle lost all power and rapidly decreased speed, the gas pedal did nothing until my speed had dropped under 60 mph. I was on the freeway and could have caused an accident. Chevrolet says a programming update was needed …
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I was traveling at 75 mph with the cruise control on when a message came on about reduced purpulsion. My vehicle lost all power and rapidly decreased speed, the gas pedal did nothing until my speed had dropped under 60 mph. I was on the freeway and could have caused an accident. Chevrolet says a programming update was needed to fix the problem but my BECM is now also out.
NHTSA ODI #11570648
Mileage unknown · Jan 31, 2024
EngineFuel/propulsion System
Driving on the road with a near full electric battery and then lost most of my power and got this message on the dash along with a check engine light. "Propulsion Power is Reduced" - I was in freeway traffic on a hill and had to put hazards on to move to the slow lane. Engine came on and seemed to be revving to full power to mai…
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Driving on the road with a near full electric battery and then lost most of my power and got this message on the dash along with a check engine light. "Propulsion Power is Reduced" - I was in freeway traffic on a hill and had to put hazards on to move to the slow lane. Engine came on and seemed to be revving to full power to maintain speed.
NHTSA ODI #11569137
Mileage unknown · Jan 31, 2024
EngineFuel/propulsion SystemPower Train
BECM failure on car confirmed at 128,000 miles. While driving the car's check engine light came on; immediately followed by a message of reduced propulsion and the EV range dropping to 0. Vehicle switched to gas and ran very rough for a short distance to an available stop. Have been informed by dealership that the vehicle is …
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BECM failure on car confirmed at 128,000 miles. While driving the car's check engine light came on; immediately followed by a message of reduced propulsion and the EV range dropping to 0. Vehicle switched to gas and ran very rough for a short distance to an available stop. Have been informed by dealership that the vehicle is now unsafe for driving due to a potential stall.
NHTSA ODI #11569029
Mileage unknown · Jan 25, 2024
EngineFuel/propulsion SystemVehicle Speed Control
While we were driving on the freeway, we saw a check engine light and “propulsion power is reduced” message. The car began driving very roughly and we had to slow down. We had this happen once before where the car engine stopped working entirely while driving at city speeds after seeing this error earlier in the summer, so we pu…
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While we were driving on the freeway, we saw a check engine light and “propulsion power is reduced” message. The car began driving very roughly and we had to slow down. We had this happen once before where the car engine stopped working entirely while driving at city speeds after seeing this error earlier in the summer, so we pulled over as soon as we could. We were traveling in a remote area at the time, just before the holidays, and it was fairly cold out. The car dealer inspected the car and told us it was unsafe to drive, that we could not take it back until it was fixed, and that it was an EGR valve problem. We previously had this fixed under warranty as well for similar behavior, and the car is barely five years old with very few miles on it. It’s our only car and we have been waiting on the part for weeks now, with no response on when we’ll be able to have our car back, and no rental car that we can drive in the meantime to get to our jobs and get groceries. The part is covered under our warranty. Both times this has happened to us, we were actively driving. In the city, it was very unsafe for the engine to unexpectedly stop as we were driving because of the amount of traffic and pedestrians, and because it meant we didn’t have full control of the vehicle. On the freeway, it was very unsafe because of the speed we were going on the freeway. Knowing that our engine was at high risk of unexpectedly stopping working while driving on the freeway from the past experience in the city made it difficult to safely concentrate on pulling over and also maneuver in traffic.
NHTSA ODI #11567891
Mileage unknown · Jan 25, 2024
Electrical SystemEngineFuel/propulsion System
Vehicle lost power on highway and on local streets. “Propulsion power reduced” warning. Car brought to dealer 7/2023. EGR valve ordered at that time. The EGR valve has not been available since that time. No time frame for availability has been given.
NHTSA ODI #11567845
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.
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