To unpair or forget your Bluetooth device, follow these steps:
- From the Home screen, choose Settings.
- Toggle on Bluetooth.
- Next to the Bluetooth device, you wish to forget, tap the blue I or information symbol (which is your car's Bluetooth).
- Select Forget This Device from the drop-down menu.
- To confirm the action, tap Forget Device.
The device has been forgotten if the automobile Bluetooth is no longer shown under Devices in the Bluetooth menu. Re-enable Bluetooth on your iPhone, and then couple it with your car's Bluetooth.