For accident avoidance and to prevent the dazzling of oncoming drivers, proper aiming of headlights is necessary. This implies that the aim of the headlights should be checked every twelve months, when new headlamps are installed or front end bodywork conducted. Here is how you can make temporary adjustments for your headlights: Each headlight has a single adjusting screw that adjusts up-and-down movement. The easiest method involves using a level floor and a blank wall 25 feet away from the vehicle. In reference to both headlights' centerlines and the vehicle centerline, set masking tape vertically on the wall. Also, there should be a horizontal tape line in reference to all of them. It is easier to position the tape on the wall with the vehicle parked a few inches away. Ensure that gas tank is half full; there are no unusually heavy loads; and vehicle is level . For low beam adjustment start by positioning high intensity zone two inches below horizontal line and two inches to right of head light vertical line. Then use adjusting screw to raise or lower beam Low beams will have their high intensity zones horizontally aligned just below this horizontal line as well when high beams are turned on If compromise becomes necessary, give priority to correct aim of low beams because they are used most and affect driver safety more than anything else It would be best if you could have them adjusted at the dealer's service department or at an automotive service station without delay.