For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Vehicle Care
California Proposition 65 WarningInstrument Panel Outer Air Outlet Replacement - Left Side
Preliminary Procedure
Remove instrument panel lower trim pad cover - left side. Refer to
Instrument Panel Lower Trim Pad Cover Replacement.
Remove instrument panel cluster trim plate. Refer to Instrument Panel
Cluster Trim Plate Replacement.
Remove instrument panel cluster lo ...
Power Windows
WARNING
Children could be seriously injured or killed if caught in the path of a closing
window. Never leave keys in a vehicle with children. When there are children in
the rear seat, use the window lockout button to prevent operation of the windows.
Press the switch down to open the window. ...
Removal Procedure
Warning: Refer to Approved Equipment for Collision Repair Warning in the
Preface section.
Warning: Refer to Collision Sectioning 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 ...