Cadillac 2004 CTS - Manual (Page 340)

Taillamps, Turn Signal, Stoplamps
and Sidemarker Lamps
A. Tail and Stop Lamps
B. Turn Signal Lamp
C. Side-Marker Lamp
1. Open the trunk using the trunk button on the remote
keyless entry transmitter or the trunk release button
located on the lower part of the driver’s door.
2. Remove the compact spare tire cover by turning the
wing nut counterclockwise.
3. Remove the four convenience net wing nuts.
4. Pull the carpet back away from the body of the
vehicle on the side with the burned out bulb.
5. Remove the two mounting screws from the lamp
assembly.
6. Pull out the lamp assembly to expose the bulb
sockets.
7. Turn the bulb socket one-quarter turn
counterclockwise and pull the bulb and socket out
of the lamp reflector.
8. Pull the old bulb from the bulb socket keeping the
bulb straight as you pull it out.
9. Install a new bulb.
10. Reverse the steps to reinstall the lamp assembly.
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