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 WarningRear Side Door Check Link Replacement
Rear Side Door Check Link Replacement
Callout
Component Name
Preliminary Procedures
Move the window to the full up position.
Remove the rear side door trim panel. Refer to Rear Side Door Trim
Replacement
...
Parking Brake Cable Replacement (Drum Brake)
Removal Procedure
Remove the front floor console. Refer to Front Floor Console Replacement.
Ensure that the parking brake lever is in the fully released position.
Using ONLY HAND TOOLS, remove the adjusting nut (1) from the end of
the front park bra ...
Engine Coolant Fan Replacement (LUV)
Engine Coolant Fan Replacement
Callout
Component Name
Preliminary Procedure
Remove the engine coolant fan shroud. Refer to Engine Coolant Fan Shroud
Replacement.
1
Engine Coolant Fan Motor Elect ...