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 WarningWindshield Garnish Molding Replacement
Preliminary Procedure
Disable the SIR system. Refer to SIR Disabling and Enabling.
Windshield Garnish Molding Assembly
Procedure
Loosen tether clip and steel clips.
Disconnect electrical connector.
The tether clip at the upper portion of the garnish molding MUST be
repla ...
Front Side Door Replacement
Preliminary Procedure
Remove the front side door trim panel. Refer to Front Side Door Trim
Replacement.
Front Side Door Check Link Bolt
Caution: Refer to Fastener Caution in the Preface section.
Procedure
Remove the water deflector.
Disconnect the door electrical connector.
Su ...
Removal Procedure
Warning: Refer to Approved Equipment for Collision Repair Warning in
the Preface section.
Disable the SIR System. Refer to SIR Disabling
and Enabling.
Disconnect the negative battery cable. Refer to Battery Negative Cable
Disconnection and Connection.
Remove all related panels ...