Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Chevrolet Bolt EV LTFACTORY OEM SERVICE PROCEDURE
Battery Cable: Remove & Replace
| Applies To | Note | Standard Hours | Warranty Hours | Skill Level |
|---|---|---|---|---|
| 12V Battery,Positive Cable | 0.7 | D | ||
| 300-Volt Cable,Drive Motor Battery,to,HV Battery Junction Block | Includes: R&I Powertrain Assembly. | 11.1 | D | |
| Drive Motor Battery Charger,to,Charge Port | Includes: Disable and Enable High Voltage System. | 2.0 | 1.6 | D |
| Drive Motor Battery,Control Module,Wiring Harness | Includes: Disable and Enable High Voltage System. | 4.9 | 3.5 | D |
| HV Battery Junction Block,to,Drive Motor Power Inverter Module | Includes: Disable and Enable High Voltage System. | 1.2 | D | |
| HV Battery Junction Block,to,Heater Coolant Heater | Includes: Disable and Enable High Voltage System. | 1.3 | 1.1 | D |
| Negative Cable,12V Battery,to,Body | Includes: R&I Battery. | 0.6 | D | |
| Negative Cable,Drive Motor Battery,to,Body | 0.4 | D | ||
| Negative Cable,Transmission,to,Body | 1.0 | D | ||
| Positive Cable,HV Battery Junction Block,to,A/C Compressor | Includes: Disable and Enable High Voltage System. | 2.1 | 1.5 | D |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.