Some models are equipped with a headlight leveling system, and the adjustment procedure does not apply to those models; therefore, have the headlights adjusted by a dealer service department or a qualified repair shop. Models with headlight housings feature three adjustment screws: one for left-and-right movement, one for up-and-down movement for both high and low beams, and a third for low beam up-and-down movement. The third screw is specifically for raising or lowering the low beam after the high beam has been adjusted. Several methods exist for adjusting the headlights, with the simplest requiring an open area with a blank wall and a level floor. Begin by positioning masking tape vertically on the wall in line with the vehicle centerline and the centerlines of both headlights, followed by a horizontal tape line aligned with the centerline of all headlights; it may be easier to place the tape with the vehicle parked just a few inches away. Adjustments should be made with the vehicle parked 25 feet from the wall, sitting level, with the gas tank half-full and no unusually heavy load. For high beam adjustment, position the high intensity zone two inches below the horizontal line and two inches to the side of the vertical headlight line, away from oncoming traffic, twisting the adjustment screws until the desired level is achieved. For low beam adjustment, repeat the process, ensuring the high intensity zone is also two inches below the horizontal line and two inches to the side of the vertical headlight line, away from oncoming traffic. With the high beams on, the high intensity zone should be vertically centered with the exact center just below the horizontal line. It is advisable to have the headlights adjusted by a dealer service department at the earliest opportunity.