I have a Volvo. I just noticed a warning notice for these about the loss of 3G and 2G services in some territories. The cars have an LTE modem, but like most LTE hardware more than 3 or 4 years old it doesn't properly support VoLTE. Their On Call service uses voice calls to report emergencies, which won't work, so that will be partially crippled. They also say a software update may be needed to make the modem work at all, but don't explain why. The LTE part should still provide internet services, like maps, Spotify and so on.