Pontiac 2005 GTO - Manual (Page 236)

Taillamps, Turn Signal, Stoplamps
and Back-up Lamps
A. Stoplamp/Taillamp
B. Back-up Lamp
C. Turn Signal Lamp
To replace one of these bulbs, do the following:
1. Open the trunk. See Trunk on page 2-8 for more
information.
2. Remove the two screws that attach the taillamp
assembly to the vehicle.
3. Pull the assembly sideways out from the panel so
that the locating pegs on the side of the lamp
assembly snap free from the clips.
5-50