Pontiac 2003 Bonneville Owner's Manual page 317

3. ~iSCOnneCt the wiring harness from the headlamp
assembly.
4.
5.
Tip the headlamp assembly and while pressing the
release, turn the bulb and socket counterclockwise
to remove them.
Replace the bulb and reinstall the socket. Then
reconnect the wiring harness to the lamp assembly.
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