Cadillac 2003 Seville Owner's Manual page 307

8. After removing the wiring harness connector from
the headlamp bulb socket, replace the bulb
assembly. Reconnect it to the wiring harness and
reinstall the headlamp bulb assembly back into
the headlamp housing.
9. After reinstalling the bulb and socket, reinstall the
rubber cover. Make sure it fully covers the
headlamp socket.
IO. To replace the high-beam bulb, turn the bulb socket
counterclockwise to unlock the socket from the
lamp housing. Follow the instructions in
Step 6 through 8 to install the new bulb.
grommets, along with the screws, back into the
holes.
11. Reinstall the upper filler panel by inserting the
5-58