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 Replacement (Without US8)
Radio Replacement
Callout
Component Name
Preliminary Procedure
Remove the instrument panel center molding. Refer to
Instrument Panel Center Molding Replacement.
1
Radio Bolts (Qty: 4)
...
Front Seat Belt Anchor Plate Tensioner Replacement
Front Seat Belt Anchor Plate Tensioner Replacement
Callout
Component Name
Warning: Refer to SIR Warning.
Warning: In order to prevent accidental deployment and the
risk of personal injury, do not dispose of a ...
Piston, Connecting Rod, and Bearing Cleaning and Inspection
Special Tools
EN-470-B Angular Torque Wrench
For equivalent regional tools, refer to Special Tools.
Visual Inspection And Cleaning Procedure
Connecting Rod
Warning: Wear safety glasses when using compressed air in
order to prevent eye injury.
Clean the connecting rod ...