My old 2006 Limited did not have DRL's, which I think is the factor here. What I'm thinking is that my DRL's are set to ON and they might be turning on and off based on outside lighting conditions. So maybe the headlights are on early in the morning but change to DRL's when coming out of the shade or facing the sunrise. At the same time, my fog lights are coming on and off as the lights change from DRL's to regular headlights. I'm still testing this theory as it's hard to replicate those conditions.