How to Adjust the Headlights on a 1989 Oldsmobile 98

The 1989 Oldsmobile 98 features two adjustment screws on the headlight assembly that allow you to control the vertical and horizontal aim of the headlights. These screws are located inside the headlight assembly but are accessible through holes on the surface of the assembly itself. This is good news for anyone whose Oldsmobile 98 headlights are lighting up the night sky or oncoming traffic rather than the road their driving on. Expect to spend about half an hour adjusting your headlights.

Tools Used: Screwdriver, Tape, Tape measure

Adjust Headlights

Park your Oldsmobile 98 directly in front of a garage door or other wall.

Measure the height from the ground to the center of the 98's headlights and place a horizontal strip of tape on the wall at that same height. Place a vertical strip of tape on the wall directly in front of the vertical center of each headlight to create cross shapes that act as targets for aiming your 98's headlight beams.

Measure 25 feet away from the wall and place a strip of tape on the ground at that point. Reverse your Oldsmobile 98 until the headlights are above that strip of tape on the ground. Turn on the headlights and prop open the hood.

Stick your screwdriver into the top or rear hole on the headlight assembly to adjust the vertical and horizontal adjustment screws. Aim the headlight beams so that they hit the wall two inches below and to the right of the lower portion of the tape targets.

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