Have bulbs been changed lately? Firstly, Check bulbs are fitted right by driving up to a flat surface(wall,garage door),on level ground.If you in England and right hand drive, you should see a level straight line from right to centre,then from centre to left the straight line should go up. The bulbs are in right if this happens. Make a note,or draw a line on the wall of the beams when you are close to the wall ect, (about a foot) now drive back about two or three feet. If the beams go down,adjust them up,just below the marks on the wall. Adjust with light level set on zero.Adjust,usually use an Allen key vertically,but you may have to check where. Hope this helps.