Sadly no. I've driven to a place with my wife, and then she drove off, with me having the keys in my pocket. It'll keep running. Can you imagine if it stops de

Sadly no. I've driven to a place with my wife, and then she drove off, with me having the keys in my pocket. It'll keep running. Can you imagine if it stops detecting the keys because the coin-battery is dead and the car all of the sudden stalls? Only when you stop the car and then try to start it you'll notice.