I know this post maybe old but I hope someone will come across and find it helpful. I also have problems with the airbag light on my Jaguar and I did a lot of searches on this issue and came on in depth article which may be worth reading, search for "Jaguar Airbag Light On - Common Problems on YOUCANIC" This article will give you a detailed information about the airbag light and help you diagnose and fix the problem. I really recommend checking this article.