Oldsmobile AURORA 2001 Owner's Manual page 301

Rear Turn Signals, Stoplamps, Taillamps
and Back-up Lamps
For the proper bulb type, see "Replacement Bulbs" in
the Index.
1. Open the trunk. Turn the screws located inside of the
trunk counterclockwise and remove them.
2. Remove the plastic trim piece from the trunk.
3. Pull the carpeting away from the rear corner of
the trunk.
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4. Remove the three 10 mm nuts holding the lamp in
place and remove the lamp assembly.
5. While pressing the release, turn the bulb socket
assembly counterclockwise to remove it from the
lamp assembly.
6. Pull the bulb straight out to remove it from the socket.
7. Replace the bulb and reverse the steps to reinstall the
lamp assembly.