When the lights are on and in auto setting it comes on automatically above a certain speed, you can turn it off and on in the menu.If you look in the handbook it tells you about it.
On my last car a Honda crv I used to turn it off as it wasn't too reliable, always being flashed. Haven't driven in the dark yet to test it but will guess I will end up turning it off in the menu.
I tried it.. Bit over sensitive with reflections off road signs.. I didn't use it much in last car but speed of this one not bad at all. I would like to try LED lights that stay in high beam but adapt so as to not dazzle other cars