2012 GMC Acadia Owner's Manual - Page 334

10-28 Vehicle Care 8. Push the new bulb straight into the bulb socket until it connects. 9. Push the taillamp assembly back into its original location. When reinstalling the taillamp assembly, make sure the pin on the taillamp assembly lines up and is inserted correctly into the opening of the vehicle. 10. Reinstall the two nuts that hold the taillamp assembly in place. 4. Remove the two nuts holding the taillamp assembly in place. 5. Pull out the taillamp assembly. 6. Turn the bulb socket counterclockwise and pull it straight out to remove it from the taillamp assembly. 7. Pull the old bulb straight out of the bulb socket. 11. Reinstall the two taillamp nut covers. 2. Turn and pull the license plate lamp forward through the liftgate trim opening. 3. Turn the bulb socket counterclockwise and pull the bulb straight out of the socket. 4. Install the new bulb. 5. Reverse Steps 1 through 3 to reinstall the license plate lamp. License Plate Lamp To replace one of these bulbs: 1. Remove the two screws holding each of the license plate lamps to the liftgate trim.