Look in the ownser manual. There are three bolts to remove. Once you do this pull on the lamp and you will see the access pannel on the back of the assembly.
To replace the tailight out of a 1998 Cadillac Deville just remove the fuse and place a new one in the light\'s bulb.
change the front shocks
Front turn signal light on the same side is not working.
change backup light 2002 cadillac deville
The check engine light on a 1999 Cadillac DeVille can be reset by disconnecting the battery for 30 seconds. The light will immediately come back on if the problem still exists.
try from inside the trunk
you have a problem with your abs system
Take out the Tail light,should be a screw at the top. Remove screw pull from the top. Unscrew bulb from the tail light and replace bulb. This is a .5 on a scale of 10 for difficulty
The check engine light would illuminate.
There are actually 3 bulbs (GE #1141). On my De Ville there is a small compartment on the rear dash directly in front (from inside the car) the high mount brake light. Simply open the compartment and pull back the trim exposing the 3 bulbs, replace any or all nonworking bulbs.
You have a problem with the brake system. Once you repair the problem the light will reset itself.
you have a problem with theft system possible key cylinder