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:

California Proposition 65 WarningInstrument Panel Compartment Door Dampener Replacement
Instrument Panel Compartment Door Dampener Replacement
Callout
Component Name
Preliminary Procedure
Remove the instrument panel lower compartment. Refer to Instrument Panel
Lower Compartment Replacement.
1 ...
Front Side Door Window Switch Bezel Replacement (Right Side)
Front Side Door Window Switch Bezel Replacement
Callout
Component Name
Preliminary Procedure
Remove the front side door trim. Refer to Front Side Door Trim Replacement.
1
Front Side Door Window S ...
Exhaust Manifold Installation
Clean the exhaust manifold sealing surface.
Install a NEW exhaust manifold gasket (1) to the cylinder head.
Caution: Refer to Fastener Caution.
Caution: Refer to Torque-to-Yield Fastener Caution.
Install the exhaust manifold (3) and tighten the NEW nu ...