Pontiac 1998 Grand Am Owner's Manual page 271

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4. Lift the headlamp assembly out of the mounting
bracket.
5. Twist the bulb assembly to the left one-sixth of a
turn
and pull out the bulb assembly.
6. Unclip the bulb assembly from the wiring harness.
7. Reverse Steps 1 through 5
to
replace the bulb
assembly and headlamp housing.
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