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 WarningRemoval Procedure
Disable the SIR System. Refer to SIR Disabling and Enabling.
Disconnect the negative battery cable. Refer to Battery Negative Cable
Disconnection and Connection.
Remove all related panels and components.
Visually inspect the damage. Repair as much of the damage as possible.
Remove the ...
Traction Off Light
This light comes on briefly while starting the engine. If it does not, have the
vehicle serviced by your dealer. If the system is working normally, the indicator
light then turns off.
The traction off light comes on when the Traction Control System (TCS) has been
turned off by pressing and ...
Headlamp Replacement
Preliminary Procedure
Remove the front bumper fascia upper bracket. Refer to Front Bumper Fascia
Replacement.
Headlamp Screw (Qty: 4)
Caution: Refer to Fastener Caution in the Preface section.
Tip
Secure the headlamp fasteners in sequence, as indicated.
Tighten
2.5 N·m (22 lb in)
...