I upgraded to 10.1 on my iPhone 6 yesterday and ever since, whenever I enter my car and the phone connects via Bluetooth, the car system stops the radio and shows the screen as if I was in a call. But the number shown is my own. Hanging up (on the car controls) has no effect, and I have to navigate to an option called "transfer" to get everything back to normal. Using Bluetooth on this car had been working flawlessly for the past two years and through all the various iOS versions. It just started acting up now after updating to 10.1. Anyone else is experiencing something like this?