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 WarningPark Brake and P (Park) Mechanism Check
Warning
When you are doing this check, the vehicle could begin to move. You or others
could be injured and property could be damaged. Make sure there is room in front
of the vehicle in case it begins to roll. Be ready to apply the regular brake at
once should the vehicle begin to move.
Park ...
Front End Inflatable Restraint Discriminating Sensor Replacement
Front End Inflatable Restraint Discriminating Sensor Replacement
Callout
Component Name
Warning: Refer to SIR Warning.
Warning: Refer to SIR Inflator Module Handling and Storage
Warning.
Warning: ...
Intake Air Pressure and Temperature Sensor Replacement
Intake Air Pressure and Temperature Sensor Replacement
Callout
Component Name
Preliminary Procedure
Remove the left front wheelhouse liner. Refer to Front Wheelhouse Liner
Replacement.
1
Intake ...