2020 Chevrolet Bolt EV service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- Premier Hatchback 4-Door
- Base Hatchback 4-Door
- LT Hatchback 4-Door
Engines covered
- BATTERY EV (EV/BEV)
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Bolt EV vehicles. The door-handle cable inside the rear doors may be too long, allowing contact with the window wh
If the rear door opens while driving, or the door handle fails to open the rear door, ther
GM will notify owners, and dealers will replace the rear inside door-handle cables, free o
General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Che
If a seat belt assembly is not properly attached to the vehicle, the seat belt may not pro
GM will notify owners, and dealers will replace the suspect bolts, free of charge. The re
General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Bolt EV and 2022 Chevrolet Bolt EUV vehicles. The high voltage battery could catch fire when charged to full or n
A battery fire increases the risk of injury.
Owners are advised to take the following interim steps: Set the Target Charge Level featu
General Motors, LLC (GM) is recalling certain 2017-2023 Chevrolet Bolt EV vehicles. After a crash with seat belt pretensioner deployment, the pretensioner exhaust may ignite carpe
A vehicle fire can increase the risk of injury.
Dealers will install metal foil at the carpet near the pretensioner exhaust, and install a
General Motors, LLC (GM) is recalling certain 2017-2023 Chevrolet Bolt EV vehicles. This recall includes certain vehicles previously repaired incorrectly under NHTSA recall number
A fire increases the risk of injury.
Dealers will inspect both front seat belt pretensioners and, if necessary, install metal f
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss
Certain vehicles may have been sold with a GM NACS Level 2 EV charging adapter (NACS to J1772) in which a quality issue was identified. Dealers are to provide the customer with the latest design charging adapter.
Certain vehicles may have a condition where a false diagnostic trouble code (DTC) is set. Dealers are to reprogram the Hybrid Powertrain Control Module 2.
This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
Showing the 8 most recent of 561 technical service bulletins on file with NHTSA.
When I was parking my car on the street, in front of my house, my Chevy Bolt suddenly accelerated. Like it was full throttle. I slammed the brake pedal, didn't help. My Bolt pushed
UNKNOWN The vehicle suddenly took off after putting it into drive causing it to accelerate out of the driveway and crash into the house across the street.The vehicle was parked on
The contact owns a 2020 Chevrolet Bolt. The contact stated that while driving approximately 50-60 mph and 30 feet from another vehicle, the brake pedal was applied but traveled to
The contact owns a 2020 Chevrolet Bolt. The contact stated that while driving approximately 50-60 mph and 30 feet from another vehicle, the brake pedal was applied but traveled to
Showing the 4 most serious of 237 complaints filed with NHTSA.
