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 WarningSteering Wheel Airbag Coil Replacement
Steering Wheel Airbag Coil Replacement
Callout
Component Name
Preliminary Procedures
Remove the steering wheel. Refer to Steering Wheel Replacement.
Remove the steering column upper trim cover. Refer to Steering Column
...
Front Differential Carrier Cleaning and Inspection
Front Differential Carrier Cleaning and Inspection
Callout
Component Name
Caution: After cleaning the transmission components, allow
to air dry. Do not use cloth or paper towels in order to dry any transmission
compo ...
Engine Oil Pressure Indicator Switch Replacement
Engine Oil Pressure Indicator Switch Replacement
Callout
Component Name
Preliminary Procedure
Remove the air conditioning compressor. Refer to Air Conditioning Compressor
Replacement.
1
Oil Pres ...