Park the car on level ground facing a flat wall or garage door
Make sure the tires are properly inflated
Load the car as normally driven
Measure the headlight height from the ground to the center of each headlight
Mark the same height on the wall with tape
Back the car up to the recommended distance, usually 25 feet
Turn on the low beams
Locate the vertical and horizontal adjustment screws on each headlight assembly
Adjust the vertical aim so the top cutoff line sits slightly below the tape mark
Adjust the horizontal aim so the beam centers are straight ahead and not off to either side
Repeat for both headlights
Check that both beams are aligned evenly
Test the lights on the road and fine-tune if needed