The headlights should also therefore be aligned properly since they could blind other motorists on the road and cause some severe accidents or hinder one's vision. The aim should be checked at least every 12 months check, and every time a new headlamp is fitted, or any front end body repairs are carried out. There are no horizontal adjustment screws but the vertical adjustment screws are on the top of the headlight housing. A very basic setting up can be done by laying on masking tape on a blank wall and a level floor. First, stand a strip of masking tape along the vehicle's centerline and also along the centerlines of both headlights and then place another strip of masking tape horizontally across the vehicles' height. The specific conditions which the vehicle should meet including it had to be parked 25 feet away from the wall, level ground, half-full tank of gas, and no heavy load. Low beam adjustment can be controlled with respect to its high-intensity zone and it should be aligned two inches below the horizontal line with the help of the adjusting screw. In the case of low and high beams, it may not be possible to get the perfect aiming for both thus, it is recommendable to go for the aiming of the low beams as they are safer to use. In the car with the high beams activated the high-intensity zone should be directly below the line drawn horizontally. It should be wise to seek the services of the professional workshop, or service station to make the necessary adjustments to the headlights as soon as possible.