You can set either adjust them yourself manually or let the auto adjust feature do it for you. I tried the auto adjust, but they were still too bright and I was constantly getting high beamed by opposing drivers. So here's what I did. I pulled into my garage (which is level) and onto two 1x6 inch planks (front only), then I turned on the auto adjust feature. This adjusted them but just slightly downward when off the planks. The 3's lights are so bright, and my fogs are always on, that even aimed a little low, they still light up the street sufficiently and if I do need the extra light, I turn on the high beams, BUT, I'm no longer getting "high beamed" by opposing drivers.