The phone companies are abandoning 3G data, not Tesla.
Tesla offers a 4G LTE upgrade.
(NOT MODERATION CONTENT, personal opinion post, representing only jjrandorin the regular poster)
Perhaps I am being a bit of a cynic here, but this does not seem like a "real post" from the OP in this thread. Why do I say that?
1. OP joined TMC today, and this is the first post, so that means that they joined specifically to make this post.
2. OP used controversial thread title guaranteed to get clicked "Abandoned by Tesla?" (A mod for this subforum added "3G data to make it less clickbaity)
3. OP used words like "I am astounded to learn....." "I am amazed that tesla....."
4. The actual complaint that they posted about, I found with a google search of "Tesla 3G retrofit" and it being the first or second link on the google search window, with information Directly from Tesla about a solution to the OPs problem. I dont have a model S vehicle and found this in about 10 seconds.
We are supposed to believe that the OP could find the TMC website, and join and make this post, yet could not find "3G Tesla retrofit" with an internet search, even though it was the first or second result on the page. There isnt any reason for the OP to be "astounded" or "amazed" at a $200 cost for this upgrade, and they ask "why doesnt tesla have a solution" when there is already clearly a solution.