2005 GMC Savana Van Owner's Manual - Page 286

9. Without removing the headlamp assembly itself, remove the bulb socket from the back of the headlamp on the driver's side. 10. Turn the bulb counterclockwise one quarter turn to remove it from the socket. 11. On the passenger's side, turn the bulb clockwise one turn. Do not touch the glass part of the bulb. 12. Install the new bulb into the socket then reinstall it into the headlamp assembly. 13. Put the headlamp assembly back into the vehicle and reinstall the two pins. 5-48