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 WarningFabric/Carpet/Suede
Start by vacuuming the surface using a soft brush attachment. If a rotating brush
attachment is being used during vacuuming, only use it on the floor carpet. Before
cleaning, gently remove as much of the soil as possible using one of the following
techniques:
Gently blot liquids with a pap ...
Steering Gear Replacement
Steering Gear Replacement
Callout
Component Name
Caution: With wheels of the vehicle facing straight ahead,
secure the steering wheel utilizing steering column anti-rotation pin,
steering column lock, or a strap to p ...
Air Conditioning Compressor and Condenser Hose Replacement (LUW)
Removal Procedure
Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
Disconnect the A/C refrigerant pressure sensor electrical connector.
Remove air conditioning compressor and condenser hose nut (1).
Remove air conditioning compressor ...