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 WarningService Publications Ordering Information
Service Manuals
Service Manuals have the diagnosis and repair information on the engines, transmission,
axle, suspension, brakes, electrical, steering, body, etc.
Service Bulletins
Service Bulletins give additional technical service information needed to knowledgeably
service General Motors c ...
Front Fog Lamps
For vehicles with front fog lamps, the button is on the outboard side of the
instrument panel.
The ignition must be on to turn on the fog lamps.
(Front Fog Lamps): Press
to turn the fog lamps on or off. An indicator light on the instrument cluster comes
on when the fog lamps are on.
The ...
Backup Lamp Replacement
Preliminary Procedures
Remove the rear compartment sill trim plate. Refer to Rear Compartment
Sill Trim Plate Replacement.
Disconnect the electrical harness connector from the backup lamp socket.
Back Up Lamp Nut (Qty: 4)
Caution: Refer to Fastener Caution in the Preface ...