1998 GMC Sonoma Owner's Manual - Page 286

Two-Piece Composite Headlamp System 1. Open the hood. F 5. Turn the bulb assembly to the left to remove it. 6. Put the new bulb assembly into the headlamp assembly and turn it to the right until it is tight. 7. Plug in the electrical connector. 8. Put the headlamp lens assembly back into the vehicle. Install the two retaining clips. 2. Remove the black retainer clips by lifting up. 3. Pull the headlamp lens assembly out. 4. Unplug the electrical connector. 6-36