I swapped out the headlight assemblies on my 2008 Sonata (since they were so incredibly foggy) and when I put them in, the headlight aim on one side is quite low (the other is only somewhat low). I found the little dial on the back of the headlight assembly and saw the arrows pointing for U and D (Up and Down! Genius!). I turned, and I turned, and I turned and I blew the house down… no, wait… wrong story. I turned the dial by hand repeatedly and saw no difference. I took the housing out, used a drill to spin it faster, no noticeable change.
Is there something I’m missing? Or does this just require an immense amount of turning to raise the light up?