vehicle Bluetooth wont display text messages. Everything else works fine.
There are too many variables that you haven't specified that could be a factor. Make/model of car, text app, settings for hands free, text to speech, etc. One one setting, my car won't display the text unless I am in park. It will READ it to me and allow me to respond, but I can't see the message on the display or select an auto response unless I am in park.
Check all options; does anything happen when you receive a text while driving?