Preliminary Procedure
Remove the rear side door inner panel trim. Refer to Rear Side Door Trim Replacement.
Warning: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, 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 (RAP) should be allowed to time out or be disabled (simply opening the driver door should disable RAP) before disconnecting power. Disconnecting power to the OnStar® module in any way while the ignition is On or with RAP activated may cause activation of the OnStar® Back-Up Battery (BUB) 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 BUB is not rechargeable and once activated the BUB must be replaced.
Procedure
SIR Service Precautions
SIR Service Precautions
Warning: When performing service on or near the SIR components or
the SIR wiring, the SIR system must be disabled. Failure to observe
the correct procedure could cause deployment of the SIR components. Serious
injury can occur. Failure to observe the correct procedure
...
Installation Procedure
Position the front end upper tie bar (1) on the vehicle.
Verify the fit of the front end upper tie bar.
Clamp the front end upper tie bar into position.
Braze accordingly.
Braze accordingly.
Grind down weld seams as needed for related panels and components.
Clean a ...
Safety Locks
The rear door safety locks prevent passengers from opening the rear doors from
inside the vehicle.
Press to activate the safety locks.
The indicator light comes on when activated.
The rear door power windows are also disabled.
Press again to deactivate the safety
locks and power windows ...