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 WarningRadio Antenna Base Replacement
Radio Antenna Base Replacement
Callout
Component Name
Preliminary Procedure
Lower the rear of the headlining trim panel. Refer to
Headlining Trim Panel Replacement.
1
Radio Antenna Base Fastener
...
Hood Replacement
Hood Replacement
Callout
Component Name
Preliminary Procedure
Disconnect the windshield washer nozzle hose.
1
Hood Hinge Nut (Qty:?€‰4)
Caution: Refer to Fastener Caution.
Procedu ...
Rear Seat Back Cushion Latch Release Knob Bezel Replacement
Rear Seat Back Cushion Latch Release Knob Bezel Replacement
Callout
Component Name
1
Rear Seat Back Cushion Latch Release Handle Bezel
Procedure
Use a flat-bladed tool to tilt the rear of the handle upward, then l ...