1. Ensure that you have paired the Bluetooth device (Car/Vehicle) with the device the app is running on.
2. Ensure that you have "Linked" the Bluetooth device with the app, by tapping on the device in the "Manage Bluetooth" screen. The Linked symbol () will be displayed.
3. Ensure that your Bluetooth device auto-connects to the device the app is running on. Please see your Car/Vehicle manual on how to achieve this.