Thanks all. Just seemed odd it does not light up when all round it does.
As said can be a pain working out what dot is closed or were the marking on the knob is for closed in the dark.
I use mine all the time to allow fresh air in.
The sunroof was the deal breaker for me if it had not been factory fitted the order would have been cancelled i use them so much especially in such a dark interior.
Waste of money for a badly designed product which is noisy open or closed.

Get back in your claustrophobic coal mine of a car interior

At least ours has light.
