Airbag / Seatbelt Pre Tensioner Light

Hi all,

What can I say, I've had my car for six weeks now and it's booked in for yet another problem.
First it was an esp fault which turned out to be the module which thankfully I didn't have to pay for and now the airbag/seatbelt pre tensioner light keeps coming on.

I've had a search through previous posts and it seems that this is another common problem.
I'm hoping it's just a loose connection and nothing more serious but what ever it is, at least the cars still under warranty.