Coming to the Headlamps, they must be properly aligned so that it does not dazzle other road users and as-well-as to get the right projections on the roads, and the alignment is advised every 1-year or after the car has had new Headlamps or front-end body work done to it. The adjustment involves two spring-loaded screws: Other designs are likely to incorporate two wheels, one at the top to allow for the up and down motion and the other at the side for the forward and backward motion. In the models prior to 1991, these screws can be removed and replaced after you have removed the bezel and the screws are visible from the front and the models from and after 1992, these screws can be undone and tightened from behind the Headlamp with the help of a small wrench or pliers. To align the Headlamps you have to park the car facing a blank wall at a distance of 25 feet as what is recommended by the manufacturer and then use a masking tape to mark the middle line of the car, the middle line of each of the Headlamps and a horizontal line of the masking tape for height alignment. Make certain that is as level as possible, the gasoline gauge showing precisely the middle of full and empty and with no excessively heavy equipment on board. Turning the screws slightly, for low beam adjustment place the high-intensity zone two inches below the horizontal line and two inches towards the side of the road from oncoming vehicles. When using the high beam the high intensity zone should be a little below parallel to the higher horizontal part of the rectangle but one must remember that the low beam is of more use in aspects of safety. The best action is to have the Headlamps aligned as professionally as possible at the initial sign of a problem.