How do you adjust headlight on 2006 Mazda 6?

To adjust the headlights on a 2006 Mazda 6, first park the vehicle on a level surface about 10 to 25 feet from a wall. Turn on the headlights and mark the center of the light beam on the wall with tape. Locate the vertical and horizontal adjustment screws on the back of the headlight assembly, then turn the screws to align the beams with the marks on the wall, ensuring the beams are level and aimed slightly downward to avoid blinding oncoming drivers.