Buick 1993 Century Owner's Manual page 249

To replace the side marker bulb:
1. Remove the socket by turning it counterclockwise and
pulling it straight out.
socket.
2. Remove the bulb by pulling it straight out
of the
3. Insert the new bulb by pressing it straight into the
socket.
4. Insert the socket by pressing it straight into the bulb
hole and turning it clockwise.
1
To reinstall the lamp:
1. Guide the latch spring
through the opening
the metal inner panel.
a
2. Engage the twoblades
on the lamp into the slots
on the headlamp while
engaging the two pins at
the rear of the lamp
opening into the sockets
on the rear of the lamp.
The lamp is now in
place.
3. Insert a screwdriver into the loop on the latch spring.
Pull the spring to the rear and slightly center of the
vehicle until the detent engages into the notch.
Taillight Bulb Replacement
(COUP
sedan)
For the type of bulb, see the Index under "Replacement
Bulbs I'
Replacing bulbs in the taillight housing is very difficult,
and we recommend that you see your dealer when you
need a bulb replaced.