As far as I know, Teslas have a similar issue like this too. They won't start if you don't have cell service as it cannot verify you are the driver of the car v

As far as I know, Teslas have a similar issue like this too. They won't start if you don't have cell service as it cannot verify you are the driver of the car via the app on the phone. If you have the fob, you are fine, but it's another failure point that was unconsidered even a few years ago. http://www.telegraph.co.uk/technology/2017/01/16/tesla-driver-stranded-desert-smartphone-app-failure/ http://www.telegraph.co.uk/technology/2017/01/16/tesla-drive...