There are is a horizontal adjustment and a vertical adjustment on each headlight assembly.
I never seem to be happy with how I aim them. It will seem good where your at and them your driving on the road and your like...wtf kind of aiming is that?
This last time seemed to go pretty good though.
Go to
http://www.qualitycareservice.com/default.asp?page=E4
It should be on page 213 of your owner's manual.
Although there is the level for vertical, the horizontal can be more difficult to get right.
Edit to add: Now that I read the instructions myself the horizontal should be damn easy as well.
