We need a way to disable vehicle telemetry. No, a software switch is not enough. We need to be able to physically unplug the cellular modem entirely and have the vehicle work with 100% functionality (barring features which inherently require cellular connectivity like turning the heating on remotely) Car manufacturers' features are mostly useless anyway thanks to Android Auto/Apple CarPlay
Why would turning on the heating require cell service? If you’re out of key fob range do you really need to pre-heat the car? The only possible use of cell service is for infotainment and even that’s questionable in a world of ubiquitous cell phones.
Yeah, that can save 15 minutes of scraping the windows for snow and ice in the morning and afternoon.