I have a 2015 SCAB Lariat with LED headlights. I have looked and looked and cannot find the adjustment screw for vertical alignment. There is a little black allen wrench gizmo with a black gear next to it but when I adjust that the gear will not rotate. It just clicks as the gear I am turning rotates against it and will not rotate. Am I missing something, or are my adjustment gizmos broken? Both sides do the same thing, namely nothing. The user manual pictures for headlight aiming doesn't even look close to anything I can find on the truck. What I did find is pictured below. Thanks.

 

If you look at your manual, it specifically states you cannot adjust the headlights vertically... sorry...

 

I don't have an answer, but I need to do this too. I've been assuming that you can stick a driver in there and turn it but I guess not? Also the regular headlight has a fitting on the back too that I think can be turned. Here is what the regular headlight looks like:

 

No it says you can't adjust the headlights horizontally.

 

Weird I thought I looked in the manual before... It says you can just use a phillips:

 

Yeh, I know. I looked at the same manual pages. Nothing looks like my truck. I have tried taking some needle nose pliers and turning the gear directly, but it is very difficult and I am afraid I will break it. On the figure at the beginning of the post a No. 2 phillips or a allen wrench can be used, but the gear on the right just is too hard to turn. I could sort of turn it by grabbing it with the pliers but, as mentioned, it is very hard to turn.

 

Actually it says at top right, Horizontal aim (which I guess means left to right by them) is not adjustable, if that's what you are trying to do. I was thinking vertical was left to right.
Their vertical adjustment is up and down, I've done that already on mine.

Mine was easy to turn, but difficult to distinguish how far it was moving it. But mine are not LED but according to the manual, should be the same.

 

I think everyone's vertical is up and down...

 

Yeah, you're right... my brain wasn't thinking correctly. I knew you could adjust them vertical, but not horizontal, so when the op said he couldn't adjust them vertically, my brain was thinking he was trying to adjust them left/right which I know we can't do.

 

The gear on the right? Did you try putting a phillips into the one of the left? In the middle of the assembly? I can see the teeth inside that looks like a phillips receptacle.