2021 Chevrolet Bolt EV Transmission and drivetrain Problems
- Complaints
- 10about this part
- Share
- 15%of 67 total for the year
- Median mileage
- 2,700miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the transmission and drivetrain of the 2021 Chevrolet Bolt EV, 15% of the 67 complaints for this model year. Where a mileage was given, the median is 2,700 miles. 2 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“High voltage battery has been recalled due to fire risk on 8.20.2021. No remedy for repair has been performed and I have had difficulty getting information from GM regarding my vehicle swap due to the recall. The vehicle is becoming more unusable as the weather gets colder due to the charging limitations set in the recall.”
NHTSA complaint #11434352, filed 2021-09“While driving on the road, a sound came from under the car, and suddenly the car lost all propulsion power and was gliding on the road. The manufacturer told me the Manual Disconnect Lever was disconnected and Fuse was blown with no explanation on the root cause. After a few calls with the GM customer service, they explained to me It happens , which to me it is unacceptable. This is a EV and fuse does not just randomly blown.”
NHTSA complaint #11529180, filed 2023-06“Video available and was given to USAA insurance company. This 2021 GM Chevrolet Bolt EV Premier trim vehicle experienced a sudden uncommanded extreme acceleration when I selected D (drive) mode on the transmission selector after using R (reverse) to back out of a parking lot parking space. The vehicle, despite my stomping and holding the brake pedal down and repeatedly selecting a different mode on the transmission selector, could not be stopped and still wanted to accelerate. …”
NHTSA complaint #11655690, filed 2025-04“As I started to leave the driveway in a forward driving position, my brand new Chevy bolt with only 2430 miles on it put itself into park. It made a terrible metal grinding noise and jolted us forward. My foot was still on the accelerator because I thought it was going to drive but it stopped then I looked around trying to figure out why. The “e” break was not on and I realized that the car was in park. Nothing was around the drive stick. Nothing touched it and I believe it put it’s self into park when I was driving. …”
NHTSA complaint #11421350, filed 2021-06“Merging onto freeway from about 50 MPH to 70 MPH. Blind zone alert indicated there was a vehicle was in my blind spot. Proceeded to accelerate full throttle into traffic when car began shuddering and then suddenly lost power. Car would not restart and needed to be towed to dealer for warranty repair. Car was at dealer for 9 days waiting for repair.”
NHTSA complaint #11476083, filed 2022-07Related service bulletins
- 11019516Apr 17, 2025This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
- 11009088Sep 16, 2024This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be…
- 11007914Aug 14, 2024This engineering information (EI) will assist GM to recover a small number of electric vehicle battery packs from customer-owned vehicles in the field for further engineering…
- 11006421Jul 24, 2024GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or…
- 11005311Jul 9, 2024This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
- 11001973Jun 6, 2024This service bulletin provides diagnostic aid information for DTC P2797, P2798 or P0C2D for Transmission Fluid Pump Performance to correct a customer concern of a Propulsion…
- 11001321May 16, 2024This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
- 11000119Apr 26, 2024This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10252566Apr 3, 2024Service Update - Certain vehicles may have a condition in which a diagnostic trouble code (DTC), U3620-U362E or U3630-U3636, symptom 17, is triggered. This DTC is resulting in…
- 10251902Mar 12, 2024This service bulletin provides diagnostic aid information for DTC P2797, P2798 or P0C2D for Transmission Fluid Pump Performance to correct a customer concern of a Propulsion…
Transmission and drivetrain: other model years
Other parts of the 2021 Chevrolet Bolt EV
33 complaintsFuel system
15 complaintsOther or unknown
12 complaintsSteering
9 complaintsEngine
4 complaintsBrakes
3 complaintsVehicle speed control
3 complaintsAir bags
2 complaintsSuspension
2 complaintsLane departure
1 complaintsSeat belts
1 complaintsBody and structure
1 complaints
← All problems reported for the 2021 Chevrolet Bolt EV
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology