Removal Procedure
- Remove Rear Compartment Floor Panel Trim Rear Compartment Front Trim Replacement
- Remove Spare Tire Stowage Retainer (1)
- Remove Spare Tire (2)
- Use a open ended wrench to hold the battery negative cable terminal stationary. (1)
- Remove Battery Negative Cable to Battery Current Sensor Nut (2)
- Disconnect Electrical Connector (3)
- Reposition away Battery Negative Cable (4)
- Loosen Battery Post Negative Cable Clamp Nut (1)
- Remove Battery Sensor Module (2)
Unless directed otherwise, the ignition must be OFF with the key removed, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
For Vehicles equipped with OnStar® (UE1) with Back Up Battery:
The Back Up Battery is a redundant power supply to allow limited OnStar® functionality in the event of a main vehicle battery power disruption to the VCIM (OnStar®module). Do not disconnect the main vehicle battery or remove the OnStar® fuse with the ignition key in any position other than OFF. Retained accessory power should be allowed to time out or be disabled (simply opening the driver door should disable retained accessory power) before disconnecting power. Disconnecting power to the OnStar® module in any way while the ignition is On or with retained accessory power activated may cause activation of the OnStar® Back-Up Battery system and will discharge and permanently damage the back-up battery. Once the Back-Up Battery is activated it will stay on until it has completely discharged. The back-up battery is not rechargeable and once activated the back-up battery must be replaced.
Refer to Battery Disconnect Warning