Buick 2002 Century - Manual (Page 288)

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Tail/Stop/Turn Signal Lamps 1. Open the trunk.
2. If your vehicle is equipped with a convenience net,
remove it.
3. Remove the plastic wing nuts (A).
There is one wing nut located on the outside of
the carpet. The other two are located underneath
the carpet.
4. Pull the taillamp housing (B) away from the body of
the vehicle.
5. Squeeze the tab on the socket and turn the
socket counterclockwise.
6. Pull out the socket.
7. Pull the old bulb out of the socket. (There are two
bulbs on each taillamp.)
8. Push in a new bulb.
9. Reverse these steps to reinstall the lamp assembly.