GM 16522983 Headlamp Capsule Assembly

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To replace a sealed beam headlight, put off the headlight switch, and for the earlier models, take out the headlight bezel. Subsequently, unscrew the headlight retaining ring screws, do not touch the adjusting screws and lift off the headlight retaining ring. Re wire the headlight electrical connector and pull out the headlight. Removing is done in reverse to installation while adjusting the headlights takes place. To work on a halogen bulb-type headlight, power off the headlight switch first; for the side lens, you have to unbolt the headlight's side lens retaining bolt situated at the car's fender and pull it out. After that, there is removal of three mounting screws in order to liberate the headlight assembly from the core support so as to disconnect bulb electrical connections as well as the grasping of the bulb holder where it will be turned anti-clockwise to be released. Removal is done in the reverse order of installation; the headlights may be adjusted if needed.

To replace the right-side headlight bulb, first put off the battery. Subsequently, turn the bulb and holder in the anti-clockwise direction to unlock from the headlight housing. Then, in order to release the bulb, remove it from the housing and disconnect the electrical connector from the bulb. Screw the electrical connector to the new headlight bulb then screw the bulb correctly into the headlight housing. In the case of the headlight housing you should first take off the grille and then the headlight housing screws. Pop out the headlight housing from the body and open the connector levers to remove the electrical connectors of the bulb holders. Removal is the mirror image of installation.

To begin, remove the headlight trim cover, followed by the headlight retaining ring. Next, pull the headlight bulb out from its carrier and unplug it from the electrical connector. Finally, installation is the reverse of the removal procedure.

This is because the headlights should be working well and should also not be blinding other drivers on the road and at the same time, they should also be aimed properly to have the best vision on the road. The headlights should be tested for correct alignment once every 12 months and when a new sealed beam headlights are fitted, or when front end bodywork is done. The headlights have two spring-loaded adjusting screws: A steeper was one on the top moving up and down and another on the side moving left and right. One of the easiest techniques in headlight correcting entails having a plain wall twenty-five feet in front of the car and a horizontal floor. First start by parallel parking it 25 feet away from the wall and then place a tape vertically on the wall to stand parallel to that of the centre line of the automobile and the centre line of the two headlights. A horizontal tape line should be placed in relation to centerline of the headlights, this may be a little difficult while one is trying to park the car, this is easier when one moves the car a few inches back. These changes should be done with the vehicle level, the gas tank half-full and with no abnormally heavy load. For low beam adjustment the high-intensity zone should be located two inches below the horizontal line and two inches right of the headlight vertical line, and to adjust the beam up and down the top adjusting screw should be used and to adjust it left and right the side screw should be used. If high beams are activated the high intensity zone has to lie halfway right under the horizontal line, nevertheless it is virtually impossible to strike both high and low beams; however low beams have to have priority for the benefit of the drivers.

When replacing the headlight, do not operate the spring loaded adjusting screws to retain the headlight alignment. First, take out the screws which are on the headlight bezel and the bezel used for aesthetic purposes. The return pin could be removed by using cotter pin removal tool to unhook the return from the retaining ring. Subsequently, remove the two bolts of the retaining ring and remove the ring while lifting the light by its sides. Ease the sealed beam unit out slightly and short circa the wires at the rear, then take the light out of the car. For the new unit to join the wires arrange it so that the numbers molded into the lens are at the upper side. Place the retaining ring to the device with the mounting screws and spring; set the bezel and test functionality. So where the adjusting screws were not turned, no adjustment of the new headlight should be necessary.

To begin, remove the headlight trim cover, followed by the headlight retaining ring. Next, pull the headlight bulb out from its carrier and unplug it from the electrical connector. Finally, installation is the reverse of the removal procedure.

For composite type headlights, the hood must be opened to access the adjuster screws located on top of each headlight assembly, which are Torx head number T-15.

Access the bulbs.

Headlights have two spring-loaded adjusting screws. One controls the up-and-down movement, while the other controls the left-and-right movement.

Adjustments should be made with the vehicle parked 25 feet from the wall, sitting level, with a full gas tank and no unusually heavy load.

If a compromise must be made, it is important to prioritize the aim of the low beams as they are the most used and have the greatest effect on driver safety.

Counter-clockwise.

The top screw adjusts the lamp's beam vertically.

With the hood raised, remove the screws retaining the rear of the headlight door, then raise the headlight assembly.

Adjust the vertical screw until the top of each beam aligns with the horizontal centerline mark.

With the front compartment lid open and the headlight switch off, position the retaining spring hook in its seat on the actuator, then close the lid and turn the switch on. Pull the headlight retaining spring forward with pliers, positioning it in its seat on the inside lower corner of the headlight assembly.

For motors with a knurled knob featuring two holes, the headlights should be turned on, and the hood opened. The knob should be turned clockwise until the assembly is fully open, which may require increased effort and may produce a click when the limit is reached.

Adjustment screws are provided at the front of each headlight to alter the beam horizontally with the side screw and vertically with the top screw; the top screw adjusts the headlight beam up and down while the side screw adjusts it left and right.