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.
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HOMESERVICE MANUALSCHEVROLET2012EXPRESS 2500 V8-4.8LREPAIR AND DIAGNOSISSTARTING AND CHARGINGBATTERYBATTERY CABLENEGATIVESERVICE AND REPAIRAUXILIARY BATTERY NEGATIVE CABLE REPLACEMENT
2012 Chevrolet Express 2500 V8-4.8L
Auxiliary Battery Negative Cable Replacement
2012 Chevrolet Express 2500 V8-4.8LSECTION Auxiliary Battery Negative Cable Replacement
Auxiliary Battery Negative Cable Replacement
Removal Procedure
1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair.
2. Disconnect the auxiliary battery negative cable from the auxiliary battery. Refer to Battery Negative Cable Disconnection and Connection Battery Negative Cable Disconnection and Connection.
3. Disconnect the auxiliary battery negative ground bolt (1) from the frame.
4. Remove the auxiliary battery negative cable (2) from the vehicle.
Installation Procedure
1. Install the auxiliary battery negative cable to the vehicle.
Caution:
Refer to Fastener Caution Fastener Caution.
2. Connect the auxiliary negative ground terminal bolt (1) to the frame and tighten to 10 Nm (89 lb in).
3. Connect the auxiliary battery negative cable (2) to the auxiliary battery and tighten to 14 Nm (123 in lb).
RENDER: 1.0x
NO RELATED
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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.