2004 GMC Sonoma Owner's Manual - Page 294

Two-Piece Composite Headlamp System 1. Open the hood. 5. Turn the bulb assembly counterclockwise to remove it from the headlamp assembly. 6. Put the new bulb into the bulb assembly and reinstall it in the headlamp assembly by turning it clockwise until it is tight. 7. Plug in the electrical connector. 8. Put the headlamp lens assembly back into the vehicle. 9. Install the two retaining clips. 10. Close the hood. 2. Remove the black retainer clips by lifting up. 3. Unplug the electrical connector. 4. Pull the headlamp lens assembly out. 5-50