Wednesday, October 23, 2013
How to Replace a Headlight Bulb on a 2004 Grand Prix
The 2004 Pontiac Grand Prix houses two headlight bulbs per drivers side and passenger side headlight assembly. The low beam bulbs are located on the fender side of the headlight assemblies and the high beam bulbs are on the grill side of the assemblies. Allow the bulbs look exactly alike, they require different automotive part numbers for low and high beam bulbs. Because of this, inspecting the position of the faulty headlight in the assembly and buying the correct bulb will make the repair that much easier.
Instructions
- 1
Park the Grand Prix on a flat surface, apply the parking brake and ensure both the engine and headlight switches are off.
2Open the hood and approach the headlight assembly with the faulty headlight bulb.
3Locate the headlight assembly retaining clip. Its behind the headlight assembly on top on the fender side. Lift the clip upward halfway to release the headlight assembly.
4Pull the assembly out being careful not to scratch the paint on the fender or the lens of the assembly.
5Reach behind the assembly and disconnect the wire connection and plug from the headlight bulb socket.
6Turn the socket of the bulb counterclockwise 1/4-turn to remove the composite bulb from the assembly. Discard the bulb.
7Install the replacement bulb into the assembly (handling the plastic socket part only -- oil in skin will damage the glass bulb of halogen bulbs because of the intense heat they burn at), but ensure the tabs of the socket end of the bulb are aligned with the notches in the assembly before turning it clockwise and locking the bulb into place.
8Plug the wire connection back into the socket of the bulb before replacing the assembly back into place and pushing down on the retaining clip. Test the headlight bulb for operation before closing the hood.
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