Can high beam headlights be adjusted separately from low beams? Or does a single adjustment screw on the top of headlight assembly adjust the assembly as a whole, affecting both the low and high beams together? (I have halogen bulbs.)

 

My 2017 adjusts the whole housing, high and low together. KM

 

Thanks for confirming that. I expected to aim them separately but got the impression I couldn't, when adjusting the screw on top. I guess you really shouldn't be concerned with the high beams unless the housing is damaged. Your focus should be on keeping the low beams from blinding the oncoming drivers. The high beams will follow along.