I pulled up behind a car on the way to work this morning (auto headlights on) and noticed that I had headlights plus LEDs plus fog lights on so as it was a completely clear blue sky with perfect visibility I manually turned the light switch off.
As I was nearing work I turned the switch back to auto and the lights came back on but a quick check in the front windows of the office showed that it was headlights only plus LEDs(not fogs).
I have had situation sin the past where I have noticed that the fogs and headlights have been on but most of the time it's only headlights.
How do these things decide whether to work and what lights to turn on?