2004 Daewoo Kalos red airbag light

I have had my car since Sept 2012 but the airbag light, on the bottom right side of my clock/where my fog light sign is too, has always been illuminated red. (Sorry im a typical woman when it comes to cars!) I have never had an issue with this but wondering what this means whether its on or off? As I now need to use a rear facing baby seat in my front seat is it at all possible to turn my passenger airbag off? Your help would be much appreciated I normally go to dad with car trouble but hes ill so id rather not trouble him :) thank you in advance Christina.