For the last few days I've noticed the little book symbol appearing on the climate control screen. It's not there when I start a journey but usually is by the time I reach my destination. Not always though and it goes away if I turn the car off and back on.
When the book appears I seem to still have full climate control functionality. The air con still works and gets very cold, the heater gets very warm, each of the air direction buttons works and the heat everything/demist button still works.
So, I've no idea what the light is telling me as it all still seems to work - any ideas?