Pontiac 2004 Grand Prix - Manual (Page 341)

3. Pull the headlamp assembly straight out from the
vehicle. Be careful to avoid scratching or chipping
the paint on the vehicle while removing.
4. Turn the bulb socket ring one-quarter of a turn
counterclockwise to remove it from the headlamp
assembly. Pull the old bulb from the socket.
5. Place the new bulb into the socket.
6. Turn the bulb socket ring one-quarter turn clockwise
to reinstall it back into the headlamp assembly.
7. Carefully reinstall the headlamp assembly. Be
careful to avoid scratching or chipping the paint
on the vehicle while reinstalling the assembly.
8. Push down on the plastic retaining clip on the
electrical connector, making sure the headlamp
assembly is secure.
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