I will try doing the relearn to see what happens, as it may be just that simple.

I did try the spare key in the hope that maybe my key was worn and not completely engaging, but it didn't work lol.

My plan for the morning is to initially try boosting the car, then checking the connections to the battery terminals, and then I will try a re learn before getting too deep in to it

 

Well it is the starter deciding it no longer wants to start my car but a new one has been ordered and I will be putting it in this afternoon so with any luck I can at least go for a nice evening drive on such a beautiful day

Thanks for all your help everyone, it is truly appreciated

 

Pull out your radio fuse. This powers the security system, if memory serves me. My truck did this, only my GMC disables the fuel system. I still do not have a radio, but it starts.