Sometimes in daylight conditions the light are on. Always leave the light on auto; if you turn lights off they go off but back in auto they come on.
This when it happen also seems to affect the stop start and fuel consumption. The stop start does not work if the lights are on in daylight, I know that there are a lot of variables to get the stop start to work, But a motorway trip of 1.5 hours in good conditions temp 12 c, and stop start does not work I find strange, as normally when the lights do not come on I can drive in the same conditions 2/3 miles and it works fine.
Also the mpg seams to drop if the light are on, the mpg is normally very constant with my driving.