Although the Toyota Hilux has gone through a few redesigns in its production history, the process for adjusting the headlights has remained relatively unchanged. Each headlight assembly features two adjustment screws that control the horizontal and vertical aim of the headlight beams. The low and high beams are adjusted together. No speciality tools are needed nor extraneous parts removed in order to access the adjustment screws. The entire procedure is straightforward and shouldn't take you more than 30 minutes.
Park your Toyota Hilux directly facing and abutting a garage door or other flat vertical surface.
Measure the height from the ground to the horizontal centre of the headlights and place a horizontal strip of tape on the wall in front of each headlight at the measured height.
Place a strip of vertical tape on the wall in front of the vertical centre of each headlight, creating two target shapes on the wall to aim your Hilux headlights.
Place a strip of tape on the ground 25 feet away from the wall your Hilux is facing. Reverse the Hilux until the headlights are above this strip of tape. Turn on the headlights and prop open the bonnet.
Look for the vertical adjustment screw on top of the headlight assembly and the horizontal adjustment screw on the grille-side of the headlight assembly. Adjust these screws to aim the headlights so that the high intensity portion of the beam hits 2 inches below and to the right of the centre of their corresponding tape targets on the wall.