The headlights must be aimed correctly to avoid blinding oncoming drivers, which can lead to serious accidents or impair visibility. It is important to check the aim every 12 months and whenever a new headlight housing is installed or front-end bodywork is done. The following procedure provides a temporary adjustment until a professional can perform a proper alignment. Vehicles have a vertical adjustment screw on the back of the headlight housing, and adjustments should be made on a level surface with a full gas tank and normal load. A simple method involves using masking tape, a blank wall, and a level floor. First, position masking tape vertically on the wall to mark the vehicle centerline and the centerline of each
Headlight Bulb, then add a horizontal tape line in relation to the headlight centerlines, which may be easier with the vehicle parked a few inches away. The vehicle should be parked 25 feet from the wall, level, with a half-full gas tank and no heavy load. Adjust the high intensity zone to be two inches below the horizontal line and two inches to the side of the headlight vertical line, away from oncoming traffic, by turning the adjusting screw to move the beam up or down. The high beams will adjust automatically with the low beam. It is advisable to have the headlights properly adjusted by a dealer service department or service station as soon as possible.