Chevrolet 2011 Cruze Owner's Manual page 278

3. Remove the two screws, which
secure the taillamp assembly.
4. Remove the taillamp assembly
by pulling it straight back until
the two posts disengage from
the grommets.
A. Sidemarker Lamp
B. Turn Signal Lamp
C. Stop Lamp/Taillamp
D. Back-up Lamp
5. Remove the bulb socket from
the taillamp assembly by turning
it counterclockwise.
6. Install a new bulb into the bulb
socket.
7. Install the bulb socket into the
taillamp assembly by turning it
clockwise.