[PinguTS]

The problem is even more complex. For most people it is just the app right now. But what people do not realize is, that the devices networked in the car itself are trusting each other by some means of certificates. These certificates needs to be renewed regualry. If there servers are becoming unavailable for a longer time while the certificates expire, the connected device will not trust each other and will refuse to work.

[bdamm]

Can you cite any specific parts that are handshaking via certificates that need renewal? In many cases device authentication is turning towards certificates that don't expire, and I'm unaware of any certificate renewal cases inside a Tesla. If they are there, I'd love to know about them.

[NotSammyHagar]

I suppose you wouldn't be able to update the os. But the car is just fine without network access. You can unlock with key, charge it, etc. It doesn't require network connections in any way. It has downloaded maps. Unlike say your BMW, your car maps get updated periodically over the internet.