Warning: Refer to Approved Equipment for Collision Repair Warning in the Preface section.
Warning: Refer to Glass and Sheet Metal Handling Warning in the Preface section.

Note: Note the number and location of welds for installation of the service assembly.

Underbody Rear Side Rail Reinforcement Replacement (MAG-Welding)
Installation ProcedureInstallation Procedure
Align the rocker inner panel.
Drill 8 mm (5/16 in) for plug welding along the edges of the quarter
outer panel as noted from the original panel.
Clean and prepare the attaching surfaces for welding.
Position the rocker inner panel on the vehicle.
Verify the fit of ...
Removal Procedure
Warning: Refer to Approved Equipment for Collision Repair Warning in the
Preface section.
Warning: Refer to Glass and Sheet Metal Handling Warning in the Preface section.
Disable the SIR System. Refer to SIR Disabling and Enabling.
Disconnect the negative battery cable. Refer to Battery N ...
OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect
to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic
Services.
The OnStar system status light is next to the OnStar buttons. If the status light
is:
• Solid Green: System is ready ...