How do you align headlights on a 2004 Chevrolet optra?

To align the headlights on a 2004 Chevrolet Optra, park the vehicle on a level surface about 25 feet from a wall. Turn on the headlights and mark the center of the light beams on the wall with tape. Adjust the vertical and horizontal alignment using the adjustment screws located on the headlight assembly until the beams are at the marked points, ensuring they are level and properly aimed. Finally, check the alignment again to confirm accuracy.