Pontiac 2002 Grand Prix Owner's Manual page 304

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6. Pull the old bulb from the socket.
7. Place the new bulb into the socket.
8. Turn the lamp socket ring a quarter turn clockwise
to place it back into the headlamp assembly.
9. Lift the plastic tab on the electrical connector and
reinstall the connector.
10. Carefully reinstall the headlamp assembly. Be
careful to avoid scratching or chipping the paint on
the vehicle while reinstalling the assembly.
11. Reinstall the two bolts on the top of the
headlamp assembly.
12. Close the hood.