Adjusting high beams only on 2014 silverado 1500

[donc]

The high beams on my 2014 1500 are aimed too high, while the low beams seem to be okay, these are the stacked lights, high beams on bottom. Looking under the hood I see an adjustment screw on each side that appears to be for the low beams, but not sure. Does anyone know how to adjust the high beams only on this truck? I can't tell if the single screw adjusts both lights together or do I have to remove the shroud on top of the radiator to access the high beams?

 

Thanks

Donc