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 WarningRoof Console Replacement
Dome Lamp Bezel
Roof Console Screw (Qty: 2)
Caution: Refer to Fastener Caution in the Preface section.
Tighten
2.5 N·m (22 lb in)
Roof Console Assembly
Procedure
Disconnect the electrical connectors.
When replacing the driver information display bezel, remove the dri ...
Engine Overheating
There is an engine coolant temperature gauge on the vehicle instrument cluster
to warn of engine overheating.
If the decision is made not to lift the hood when this warning appears, get service
help right away.
If the decision is made to lift the hood, make sure the vehicle is parked on
a le ...
High Strength Low Alloy Steel
This information provides repair recommendations and general guidelines for
steel classified as High Strength Low Alloy Steel, also known
as HSLA. This type of steel normally has a tensile strength range from 300-700
MPa.
General Motors recommends the following when repairing or replacing th ...