Pontiac Grand Prix 2007 Owner's Manual page 402

402
6. Remove the taillamp
assembly by pulling
it out from the
vehicle.
8. Remove the old bulb.
9. Replace with a new bulb into the socket and
turn the lamp socket clockwise to install it.
10. Reinstall the taillamp assembly by reversing
Steps 2 through 5.
7. Turn the appropriate
lamp socket a
quarter turn
counterclockwise
and remove it.