This concept isn't new. OnStar <i>a third party service</i> has been providing this for cars for a long time. I think a few vehicle manufacturers have bundled OnStar in the past, maybe Cadillac, Buick, GMC, maybe Chevy? I want to say there were others as well. They can remotely unlock or lock your vehicle, send medical and law enforcement to your location, detect if you were in an accident, do hands-free calling for help. Now I sound like one of their old commercials. OnStar handles key fobs remotely too.