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 WarningFog Lamps (RS)
To replace the front fog lamp bulb:
1. Locate the fog lamp located under the front fascia.
2. Remove the cap from the back of the fog lamp assembly.
3. Disconnect the electrical connector from the fog lamp bulb assembly.
4. Remove the bulb by turning it counterclockwise and pulling it straight ...
Dome Lamp Bulb Replacement
Dome Lamp Bulb Replacement
Callout
Component Name
Preliminary Procedure
Remove the windshield header courtesy lamp. Refer to Windshield Header
Courtesy Lamp Replacement
1
Dome Lamp Bulb
...
Front Bumper Fascia Air Deflector Replacement
Front Bumper Fascia Air Deflector Replacement
Callout
Component Name
Preliminary Procedure
Remove the front bumper fascia opening lower cover. Refer to Front Bumper
Fascia Opening Lower Cover Replacement.
...