After updating to Windows 10 on my Lumia 735, the "talking text" feature of my car is no longer working. When I receive a text while driving, it reads it to me and I can respond or ignore. Worked fine until I did the update from Windows 8.1 to Windows 10. Phone calls work fine (incoming/outgoing). Any suggestions?
Have you tried removing the Bluetooth pairing from both devices, reboot and add them fresh again?
I'm most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.
Have you tried going into the settings for it? Hit search button to pull up Cortana, hit the "hamburger menu" in the upper left. Hit settings. What does it say under "Read incoming text messages aloud"? Play with that a bit.