I think it was optional.
Mine was specced with it but seein as it's my solemn intention never to have kids of my own, nor look after anyone elses whining kiddybrat, happily i'll never need to activate it :lol:
Yes, was a specific option and ones that have it have a small 'airbag off' sign near gear stick if I remember correctly. Mine has it and was a non negotiable extra for me!