If you can swap out the 2G module for a 3G module, then the company has lost it's excuse for shutting down it's cloud. Companies that make a car that consumers expect to last 20 years should operate the cloud for the lifetime of the car.
Because they didn't build it that way. I worked you a company that wrote software for connected cars like this. Universally those platforms were the absolute worst. Underpowered, unreliable and sold for far to much.