2005 Chevrolet Silverado 3500 Pickup Owner's Manual - Page 460

6. Put a new bulb into the bulb socket. Use care not to touch the bulb with your fingers or hands. 7. Put the bulb socket back into the turn signal housing and turn it clockwise until it locks. 8. Put the turn signal housing back into the vehicle placing the hook and posts on the inner side into the alignment holes first, then the outer side into the retainer bracket until you hear a click. 9. Put the headlamp assembly back into the vehicle. Roof Marker Lamps To replace a roof marker lamp bulb, do the following: 1. Remove the two screws and lift off the lens. 2. Remove the six screws on the center roof marker lamps. 3. Turn the old bulb counterclockwise to remove it from the socket. 5-68