Cadillac 2012 CTS-V Owner's Manual page 360

To replace one of these bulbs:
1. Push the tab to remove the
license plate lamp.
2. Turn the license plate lamp
assembly down to remove it.
3. Turn the socket
counterclockwise and remove it.
4. Pull the bulb straight out to
remove it.
5. Push the new bulb straight into
the socket.
6. Reverse Steps 1 through 3 to
reinstall the license plate lamp
assembly.
To replace one of these bulbs:
1. Open the liftgate. See
for more
information.
2. Push the left end of the lamp
assembly toward the right.
3. Turn the lamp assembly down to
remove it from the liftgate.
A. Bulb Socket
B. Bulb
C. Lamp Assembly
4. Turn the bulb socket (A)
counterclockwise to remove it
from the lamp assembly (C).
5. Pull the bulb (B) straight out of
the bulb socket.
6. Push the replacement bulb
straight into the bulb socket and
turn the bulb socket clockwise to
install it into the lamp assembly.