Oldsmobile AURORA 2001 Owner's Manual page 293

3. Disconnect the wiring harness from the
headlamp assembly.
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4. Lift the tabs to remove the bulb from the assembly.
5. Replace the bulb. Push the bulb assembly in and
turn it clockwise to install the bulb assembly into the
headlamp assembly. Then reconnect the wiring
harness to the lamp assembly.