Cadillac 2005 STS - Manual (Page 338)

Front Turn Signal Lamps
A. Turn Signal Lamp
B. Fog Lamp
If the fog lamp needs to be replaced, see your dealer.
To replace a turn signal lamp bulb, do the following:
1. Remove the protection shield located on the
underside of the front of the vehicle by pulling
out the push-pins located on the underside of the
protection shield.
2. Reach up behind the front bumper area from under
the vehicle to access the lamp housing.
3. Remove the bulb access cover by turning it
counterclockwise.
4. Remove the bulb socket from the housing by
turning the bulb socket one-quarter turn
counterclockwise.
5. Pull the old bulb from the bulb socket keeping the
bulb straight as you pull it out.
6. Install a new bulb.
7. Reverse the steps to reinstall the lamp assembly.
Sidemarker Lamps
1. Locate the rear sidemarker lamp assembly under
the rear fascia.
2. Turn the socket
counterclockwise and
then pull it straight
out from the
sidemarker lamp
assembly.
3. Pull the old bulb straight out and reinstall the
new bulb.
4. Reverse Step 2 to reinstall the socket.
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