2009 GMC Savana Van Owner's Manual - Page 294

Center High-Mounted Stoplamp (CHMSL) The Center High-Mounted Stoplamp (CHMSL) is located above the rear doors at the center of the vehicle. To replace a bulb: Taillamps To replace one of these bulbs: 1. Remove the two inboard nuts from the inside of the taillamp assembly. 1. Remove the two screws from the CHMSL assembly. 2. Remove the CHMSL assembly. 3. Turn the bulb counterclockwise one quarter turn to remove it from the socket. 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. 5-52 2. Pull the taillamp assembly straight back to clear the studs. 3. Slide the taillamp assembly slightly upward to release the lower clip. 4. Remove the three nuts on the taillamp assembly. 5. Remove the taillamp assembly from the vehicle.