Ok car has been doing this for a little while at first I thought I was just seeing things, but I know I am not. Every once in a while my headlights will shut off when I am driving has done it with high and low beams, they are only off for a split second, but my fog lights stay on.

Any one else have this???

Any ideas? I was thinking dimmer switch.

yep most likely dimmer swich, thats very common on the cavis, i have had to replace one in every J i have owned except the vert *knock on wood*