If you are unable to make a call on your Bluetooth® wireless phone, check that the phone is paired with the car stereo. Calls cannot be made on your Bluetooth phone through the car stereo unless the two are paired properly.
Check the user manual of your car stereo for model-specific instructions on how to pair it with Bluetooth devices. Manuals are posted on your model support page.
NOTE: Depending on your mobile phone, voice dial and re-dialing functions may not be available for use with the car stereo.