Buick 5972698 Headlamp Bulb

The headlight adjustment screws are located to the side and top of each lamp, with the top screw adjusting the lamp's beam vertically and the side screw adjusting it horizontally. Although proper adjustment should ideally be done using appropriate beam setting equipment due to legal specifications, a procedure can help achieve a close approximation. First, position the car on level ground, facing a wall at a right angle and approximately 30 feet away. Measure the height of the centers of the headlights from the ground and mark these measurements on the wall. Next, measure the distance from the centerline of the car to the center of each headlight and mark these measurements on the wall to create intersecting lines aligned with the center of each headlight. Turn on the regular beam of the headlights and adjust the horizontal screws until each beam is centered with the corresponding marks on the wall, then adjust the vertical screw until the top of each beam aligns with the horizontal centerline mark. Finally, bounce the car on its suspension to ensure the beams return to their correct positions.

If you are replacing both headlights, it will be much easier to do only one at a time because the other headlight assembly will act as your guide. Starting with opening the front compartment lid and retracting the headlight connectors from the rear side of the headlight. Switch on the headlight switch to provide lift to the headlamp assemblies and clamp the front compartment lid shut. Next, there are two Torx screws on the upper left and right points of the black plastic bezel of the front part of the headlight, after which, with the help of raising the front compartment lid again it is possible to unscrew two Torx screws at each side of the bezel and take off the bezel. Twist the headlight switch counter-clock wise and switch off, next with the help of a hooked tool or pliers, pull the retaining spring upwards. Switch on the headlight switch back, close the front compartment lid and pull the headlight assembly from the adjuster screws making sure that you do not discard the retaining spring with it. There are four screws in the chrome headlight retaining ring, unscrew and take out the headlight. It is installed by using the front compartment lid open, the headlight switch in the OFF state and inserting the recess of the retaining spring hook onto the teeth of the actuator In this way the headlight can be switched on by closing the lid and turning the switch ON. Using pliers take the headlight retaining spring and pull down to its seat which is on the inner lower part of the headlight assembly. Ensure that the slots of the headlight ring are fixed on the adjuster screws, open the front compartment lid and then replace black plastic bezel and tighten the two outer Torx screws. Insert the headlight connector, shut the front compartment cover, and replace the remaining two Torx screws at the upper front side of the plastic housing and then check for normal operation.

Adjustments should be made with the vehicle level, the gas tank half-full, and without any unusually heavy load.

Installation follows the reverse order of removal, followed by adjusting the headlights.

The simplest method requires a blank wall 25 feet in front of the vehicle and a level floor. Masking tape should be positioned vertically on the wall in reference to the vehicle centerline and the centerlines of both headlights. A horizontal tape line should also be positioned in reference to the centerline of all the headlights.

Start by opening the hood and removing the grille.

No, the left-and-right movement of the headlights is not adjustable.

Start by opening the hood to access the bulb from behind the headlight housings. In some cases, you may need to remove the radiator grille to gain access.

Take care not to disturb the adjustment screws.

To install, plug the new bulb assembly into the electrical connector, insert it into the receptacle, and rotate clockwise to lock it into place.

Care should be taken not to scratch the paint on the body while making adjustments.

Take out the headlight body assembly retaining screws and disconnect the wiring connectors at the actuator/motor relay.

After removing the headlight trim cover, the next step is to remove the headlight retaining ring.

The adjustment procedure for headlights involves using spring-loaded adjusting screws for sealed beam headlights and Torx-head screw adjusters for composite headlights.

Remove the bolts securing the headlight housing.

The adjusting screw should be turned to position the high-intensity zone two inches below the horizontal line.

The installation process is the reverse of the removal procedure.

Next, take out the two screws securing the retaining ring and carefully withdraw the ring while supporting the light.

It is important to aim headlights correctly to avoid blinding oncoming drivers and to ensure optimal visibility on the road.

Measure the height of the centers of the headlights from the ground and mark these measurements on the wall.