@briankrebs
Technically, each vehicle has a SMS chip embedded that is responsible for connecting back out. Technically, it might be possible to remove that chip and thus sever the connection to the mothership, but I don't know what the car would do should that ever happen.
I had an older vehicle that had a service recall because 3G network was no longer offered. Worked fine afterwards, but more modern cars are 🤷 .
https://soc.jrconlin.com/@jrconlin/113635373396073018
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