NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
697 reportsMileage unknown · Jun 22, 2023
Electrical System
While driving the 2017 Chevy Volt, for about 20 minutes, the electrical system shut down. The warning said to put the car into park and look at the screen. The first instance the car was traveling at 45 mph, the second time it was on the freeway at 70 mph. At this point the check engine light came on. After turning the car off a…
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While driving the 2017 Chevy Volt, for about 20 minutes, the electrical system shut down. The warning said to put the car into park and look at the screen. The first instance the car was traveling at 45 mph, the second time it was on the freeway at 70 mph. At this point the check engine light came on. After turning the car off and on three times the car was able to be driven, but it happened again on the next leg of our journey.The Volt at first would not charge. It said "charge not available", then after about an hour the Volt was able to be charged. We believe it is the battery charging module being defective. GM was sued for this very problem, and lost, but has not issued a recall on this very dangerous occurrence. It has issued a bulletin to it's employees, but again, has not addressed the issue.
NHTSA ODI #11528288
Mileage unknown · Jun 14, 2023
Electrical System
After putting the vehicle in park and turning off the engine, the car gives a warning that the car is not in park. The main problem with the inability to shift into the park gear is that I anm unable to shut off my vehicle, which could potentially drain the battery. Consumers have been unable to exit, lock, and turn off their …
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After putting the vehicle in park and turning off the engine, the car gives a warning that the car is not in park. The main problem with the inability to shift into the park gear is that I anm unable to shut off my vehicle, which could potentially drain the battery. Consumers have been unable to exit, lock, and turn off their vehicles due to the shifting malfunction. The true issue at hand here is not that the vehicle is unable to physically shift into the park gear, but the vehicle is incapable of detecting the shift. Typically, when this malfunction occurs, the driver will receive a “Shift to Park” message on the driver information center, even if the gear selector is moved to park and the ignition is switched to the off position. The driver then must either restart the vehicle and try to repeat the shutting down process or toggle the shifter enough that the vehicle’s electrical system finally detects the shift change. While this strategy sometimes does the trick—it doesn’t always work, and drivers are stuck with a vehicle that will not shift into park.
NHTSA ODI #11526995
Mileage unknown · May 7, 2023
Electrical SystemEngineFuel/propulsion System
When I first purchased the car (used around 30,000 miles), I began to have electrical and propulsion issues where the engine would turn off. After Chevy refused to warranty or lemon the car, eventually the electrical/hybrid issue repeated and caused cooling issues with the car and then water pump went bad. while chevy still refu…
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When I first purchased the car (used around 30,000 miles), I began to have electrical and propulsion issues where the engine would turn off. After Chevy refused to warranty or lemon the car, eventually the electrical/hybrid issue repeated and caused cooling issues with the car and then water pump went bad. while chevy still refused to fix the hybrid and battery issues, that continued issue and then the water pump failing from it then caused overheating that then broke the head gasket
NHTSA ODI #11520855
Mileage unknown · Apr 11, 2023
Forward Collision AvoidanceService Brakes
Several times since I purchased the car in Jan 2022, the left and/or right front brakes have dragged without brake pedal actuation while I was driving in surface street traffic, typically with speed limits of 25 to 35 mph. This has resulted in overheating of the brake caliper, rotor, and wheel. Typically the car can be driven …
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Several times since I purchased the car in Jan 2022, the left and/or right front brakes have dragged without brake pedal actuation while I was driving in surface street traffic, typically with speed limits of 25 to 35 mph. This has resulted in overheating of the brake caliper, rotor, and wheel. Typically the car can be driven again without issue after two hours of cool-off time. This phenomenon has occurred during both battery/electric and gasoline engine operation of the plug-in hybrid car. There are no instrument indications of a brake malfunction when it happens. It first becomes perceptible as a pulsation through the steering wheel and requires increased throttle pedal pressure to maintain speed. I brought the car to my local Chevrolet dealer after the first two of these incidents. Their first recommendation was a new set of tires to remove the influence of one mismatched tire. The new tires did not resolve the issue, and the dealer has not performed any other corrective action beyond a recommendation to replace calipers and rotors. Due to the intermittent nature of the failure and the fact that it affects both of the front brakes, I believe this is an ABS system issue and not a caliper/rotor issue, and I have not replaced those parts yet. The car's adaptive cruise control does not work properly. It almost always fails to set and shows "Adaptive Cruise Temporarily Unavailable" regardless of road conditions. This condition is intermittent and is not reproducible on demand. This condition is dangerous because it overheats the brake, wheel, and steering components. The heat may have damaged the wheel bearing, steering components, and CV joints. The heat also creates a risk of sudden wheel and/or tire failure while driving. The unexpected application of the brakes affects vehicle response to throttle and steering inputs, and has the potential to reduce driver control of the vehicle.
NHTSA ODI #11516497
Mileage unknown · Apr 6, 2023
Steering
While driving down the freeway, the steering starting chattering. After a few miles, the steering became erratic and would not stay centered. I exited the freeway, and halfway through the offramp turn, the power steering completely failed. This cause the car to become very hard to steer.
NHTSA ODI #11515868
36,436 miles · Apr 5, 2023
Electrical System
The contact owns a 2017 Chevrolet Volt. The contact stated while driving 30 MPH, the message “Loss Of Power Proportion" was displayed, and the vehicle stalled. The contact was able to veer to the side of the road. The vehicle was able to restart. The contact was able to drive to the residence; however, the vehicle failed to rest…
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The contact owns a 2017 Chevrolet Volt. The contact stated while driving 30 MPH, the message “Loss Of Power Proportion" was displayed, and the vehicle stalled. The contact was able to veer to the side of the road. The vehicle was able to restart. The contact was able to drive to the residence; however, the vehicle failed to restart while in the garage. The contact stated that upon investigating the failure online, he became aware that the failure mostly occurred in cold weather. As the weather became warmer, the contact was able to restart the vehicle. The vehicle was taken to the dealer, where it was diagnosed that the Battery Energy Control Module (BECM) had failed and needed to be replaced; however, the part was not available. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the part was not available. The failure mileage was approximately 36,436.
NHTSA ODI #11515573
78,000 miles · Mar 24, 2023
Air BagsElectrical SystemCrashInjury
The contact owns a 2017 Chevrolet Volt. The contact stated that while driving approximately 40 mph, another unknown vehicle crashed into his vehicle which went airborne and over the median. There were no warning lights to illuminate. A police report was not filed. There was no reported fire or air bag deployment. The contact su…
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The contact owns a 2017 Chevrolet Volt. The contact stated that while driving approximately 40 mph, another unknown vehicle crashed into his vehicle which went airborne and over the median. There were no warning lights to illuminate. A police report was not filed. There was no reported fire or air bag deployment. The contact sustained injuries to his neck and back and medical attention was provided. The vehicle was towed to a body shop who informed him the battery was scratched. The vehicle was towed to the local dealer where the battery electronic module was damaged due to being dropped. The vehicle was not repaired. The manufacturer was contacted but no additional assistance was provided. The failure mileage was approximately 78,000.
NHTSA ODI #11513550
Mileage unknown · Mar 23, 2023
Electrical System
Loss of power propulsion while driving Eventually vehicle completely stoped. After doing some research this is a common occurrence. Highly dangerous and it seems the manufacturer is aware but ignoring the problem. This problem can cause accidents and also leave people stranded in isolated areas.
NHTSA ODI #11513442
Mileage unknown · Mar 4, 2023
Electrical System
When I got home at 11:50 am at March 4, 2023. The shift-to-park error message came up and prevented shutoff and driving. The car kept running in my garage which pause great danger to my house and my family. The weather is freezing cold with rain and snow. We are scare to stay in the house and afraid of explosion. I contacted Ch…
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When I got home at 11:50 am at March 4, 2023. The shift-to-park error message came up and prevented shutoff and driving. The car kept running in my garage which pause great danger to my house and my family. The weather is freezing cold with rain and snow. We are scare to stay in the house and afraid of explosion. I contacted Chevy and its dealers. All could not find tech to support. Then I searched on websites. There are tons of complaints that Chevy knows the problem in multiple car modes but resist to make a recall. Also Chevy lost a case due to damage by shift to park error.
NHTSA ODI #11510149
Mileage unknown · Feb 15, 2023
EngineFuel/propulsion SystemVehicle Speed Control
After the battery runs out, the engine loses propulsion and fails to run on gas. The car completely stalls in the middle of traffic. The speed drops from 70+ mph to 0. Extremely dangerous to myself and others. The issue suddenly appeared at the end of December 2022 during a long drive. The engine check light remains on and a war…
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After the battery runs out, the engine loses propulsion and fails to run on gas. The car completely stalls in the middle of traffic. The speed drops from 70+ mph to 0. Extremely dangerous to myself and others. The issue suddenly appeared at the end of December 2022 during a long drive. The engine check light remains on and a warning re: reduced propulsion power is displayed every time the car is turned on. Dealer is unable to fix the issue because they already have multiple cars with the same issue waiting for weeks to be repaired. Recently filed class action law suit suggests that this problem is caused by defective BCEM unit.
NHTSA ODI #11507401
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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