2010 GMC Savana 2500 Cargo Owner's Manual - Page 314

4. Turn the bulb clockwise one quarter turn to install it in the socket. 5. Reinstall the CHMSL assembly and two screws. Do not block or damage the CHMSL when items are loaded on the roof of the vehicle. 4. Remove the three nuts on the taillamp assembly. 5. Remove the taillamp assembly from the vehicle. Taillamps To replace one of these bulbs: 1. Remove the two inboard nuts from the inside of the taillamp assembly. 6. Remove the bulb socket by squeezing the tab on the side of the socket while turning it counterclockwise. 7. Turn the bulb counterclockwise to remove it. 8. Turn the bulb clockwise to install it in the socket. 2. Pull the taillamp assembly straight back to clear the studs. 3. Slide the taillamp assembly slightly upward to release the lower clip. 6-52 9. Reinstall the bulb socket by squeezing the tab while turning it clockwise. 10. Reinstall the taillamp assembly and three nuts on the vehicle.