BMW tyre pressures are in BAR, not PSI. Try pumping it up and see if the light goes out, if not I'm sure your dealer would be more than happy to advise you. Gold medal to MrFlibbles
Somewhere (it was by the handbrake on the MINI) there should be a button with a symbol on it like the one shown, press and hold that in and it will go.
There's something you have to reset once you've refilled it as well I think, from when I had my 5 series anyway. The sensor that checks the pressure needs resetting is what I'm trying to say
yep sometimes it happens even if the tyres are to pressure... had it a couple of times... fill 'em up and then reset as advised (button with teh same symbol as the dash warning light)