Cadillac 2001 Catera Owner's Manual page 286

2. On the outboard side of each low
you will find the turn signal bulbs. Turn the lamp
assembly counterclockwise to remove it.
-
beam headlamp, 3. Pull the bulb out, replace it and then reassemble.
Taillamp and Stop Lamp
1. Open the trunk to access the lamp housing.
2. Depending on which outer bulb needs replacing,
open either the spare tire cover on the driver's side or
the storage compartment on the passenger's side to
access the bulbs.
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