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 WarningOverview (Radio with Touchscreen)
1. VOL
(Volume)
Press to decrease or increase the volume.
2. (Power)
Press and hold to turn the power on or off.
3. (Home Page)
Press to go to the Home Page. See Home Page (Radio with Touchscreen).
...
Buying New Tires
GM has developed and matched specific tires for the vehicle. The original equipment
tires installed were designed to meet General Motors Tire Performance Criteria Specification
(TPC Spec) system rating. When replacement tires are needed, GM strongly recommends
buying tires with the same TPC Sp ...
SIR Disabling and Enabling
SIR component location affects how a vehicle should be serviced. There are parts
of the SIR system installed in various locations around a vehicle. To find the location
of the SIR components refer to Supplemental Inflatable Restraint System Description
and Operation.
There are several reason ...