I am 99.9% certain that i used to be able to send a response to my kids from the car using voice reply. they do not have phones but rather just iPads. I have no issue receiving the messages, but when i reply, i get a Send Failed message. They do not have a cellular enabled iPad, so it's just imsgs.
Has something changed that is preventing being able to reply? i took my car to a service center and they said it could be a tesla firmware thing, but were of no help at all. I cant believe that in 2021 we can respond to non-phone number based messages when it's sending through my device via bluetooth. am i missing something?