Hey @RUMBLES! Are you able forget your car's Bluetooth?:
1. From the home screen, swipe either up or down to access apps.
2. Select Settings.
3. Select Connections.
4. Select Bluetooth.
5. Select the paired device.
6. Select Unpair.
Pair your device with your car's handsfree again, has this worked? If not, try a Soft reset your phone and turn off your car's Bluetooth.
Press and hold the power and volume down buttons for about 10 seconds.
*If the device is on, it may take a screenshot. Keep holding the buttons for a few more seconds.
Turn both back on.
Has this solved your issue?