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 WarningWhen It Is Time for New Tires
Factors such as maintenance, temperatures, driving speeds, vehicle loading, and
road conditions affect the wear rate of the tires.
Treadwear indicators are one way to tell when it is time for new tires. Treadwear
indicators appear when the tires have only 1.6mm (1/16 in) or less of tread rema ...
Engine Oil Change
When a %CHANGE message displays
in the DIC, have the engine oil and filter changed within the next 1 000 km/600
mi. If driven under the best conditions, the engine oil life system might not indicate
the need for vehicle service for more than a year. The engine oil and filter must
be changed ...
Instrument Panel Knee Bolster Replacement
Instrument Panel Knee Bolster Replacement
Callout
Component Name
Preliminary Procedures
Disable the SIR system. Refer to SIR Disabling and Enabling.
Remove the driver inflatable restraint instrument panel lower module.
...