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:

Vehicle Care
California Proposition 65 WarningRear Suspension
Specifications
Rear Suspension Components
Rear Shock Absorber Upper Mount
Rear Shock Absorber Upper Mount
Rear Shock Absorber Upper Mount
Rear Shock Absorber Upper Mount
Shock Absorber Assembly
Upper Dumping Ring
Rear Spring
Lower Dumping Ring
Rear Axle Bushing
Rear Ax ...
Rear Side Door Trim Replacement
Rear Side Door Inside Handle Bolt Finish Cap
Procedure
Pull handle back to remove cap. Use suitable tool to unsnap.
Rear Side Door Inside Handle Screw
Caution: Refer to Fastener Caution in the Preface section.
Tighten
2.5 N·m (23 lb in)
Rear Side Door Pull Handle Screw
T ...
AM-FM Radio
Control Buttons
The buttons used to control the radio are: BAND: Press to turn the radio
on and choose between AM, FM, and SiriusXM®, if equipped.
MENU/SEL: Turn to navigate the available menus and to search for stations.
INFO: Press to display additional information that may be available for
...