Sunshade button - Lamp Fail??

[chr15gb]

I was driving along the M25 this week, early evening, heavy traffic with a HGV behind me.

His lights were dazzling in my mirror and in these cases, I find the rear sunshade helps to diffuse the headlights.
I looked down for the button to raise the sunshade but couldn't see it.

I may be going mad, it is a sunshade after all but is that button supposed to be illuminated?
i have used it like this many times before but I can't remember.

If it is supposed to be illuminated, any idea how to change the lamp?

[jackcramerr]

Illuminated, yes.

[Texas]

Just driven from Bristol to central London and remembered to 'have a look' at this button after reading your first post, and yes as above can confirm that the top section of this switch is illuminated but not the white lettering.

paul m.