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 MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 500 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)REPAIR INSTRUCTIONS (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)AUXILIARY BATTERY AND TRAY REPLACEMENT (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)REMOVAL PROCEDURE (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Removal Procedure (Battery, Charging System And Starting System)
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Removal Procedure (Battery, Charging System And Starting System)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 GMC Savana Special, 2009 GMC Savana Camper Special, 2009 GMC Savana, 2009 Chevrolet RV Cutaway, and 2009 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the primary battery and the auxiliary battery negative cables. Refer to Battery Negative Cable Disconnection and Connection
- Disconnect the auxiliary battery positive cable from the auxiliary battery.
- Remove the lower auxiliary battery tray to frame bolts (3).
- Loosen, but DO NOT REMOVE the upper battery tray to frame bolts (1).
- Lift the battery and tray assembly (2) from the upper frame bolts (1).
- Remove the battery retainer bolt and retainer (3).
- Remove the battery (1) from the battery tray (2).
RENDER: 1.0x
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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.