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 WarningOnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect
to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic
Services.
The OnStar system status light is next to the OnStar buttons. If the status light
is:
Solid Green: System is ...
Tire Pressure Indicator Sensor Replacement
Removal Procedure
Raise the vehicle on a suitable support. Refer to
Lifting and Jacking the Vehicle.
Remove the tire/wheel assembly from the vehicle. Refer
to Tire and Wheel Removal and Installation.
Dismount the tire from the rim. Refer to
Tire Dismounting and Moun ...
Liftgate Trim Finish Panel Replacement (Hatchback)
Liftgate Trim Finish Panel Replacement
Callout
Component Name
1
Liftgate Trim Finish Panel Fastener
Caution: Refer to Fastener Caution.
2
Liftgate Trim Finish Panel Retainer (Qty: ...