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.
2022 GMC Hummer EVFACTORY OEM SERVICE PROCEDURE
Battery Cable: Remove & Replace
| Applies To | Note | Standard Hours | Warranty Hours | Skill Level |
|---|---|---|---|---|
| Battery Negative Cable | 0.3 | 0.2 | D | |
| Battery Negative Cable Extension Cable,Left,Front Drive Unit to Front Cradle | 1.0 | 0.6 | D | |
| Battery Negative Cable Extension Cable,Left,Lower Frame to Front Cradle | 1.3 | 0.8 | D | |
| Battery Negative Cable Extension Cable,Left,Lower Frame to Rear Cradle | 1.3 | 0.8 | D | |
| Battery Negative Cable Extension Cable,Left,Rear Drive Unit to Rear Cradle | 0.8 | 0.5 | D | |
| Battery Negative Cable Extension Cable,Right | 0.8 | 0.5 | D | |
| Battery Negative Cable Extension Cable,Right,Front Drive Unit to Front Cradle | 3.2 | 1.9 | D | |
| Battery Negative Cable Extension Cable,Right,Lower Frame to Front Cradle | 1.3 | 0.8 | D | |
| Battery Negative Cable Extension Cable,Right,Lower Frame to Rear Cradle | 1.3 | 0.8 | D | |
| Battery Positive and Negative Cable | 13.6 | 9.5 | D | |
| Battery Positive Junction Block Cable | 0.6 | 0.4 | D | |
| Generator Battery Positive and Negative Cable | 16.1 | 11.3 | D | |
| High Voltage,Battery Positive and Negative Cable | 15.5 | 10.9 | D | |
| High Voltage,Battery Positive and Negative Cable Extension Cable | 13.9 | 9.7 | D | |
| Starter Generator Negative Ground Cable,Left | 1.8 | 1.1 | D | |
| Starter Generator Negative Ground Cable,Right | 1.6 | 1.0 | D |
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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