Cpaar10

I was going to help my mother set up her bluetooth in her 2014 Subaru Forester. When I turn the key to on all gauges activate and the radio starts. I tried the subaru bluetooth setup directions and when I click the off hook phone button the radio pauses for a second then continues with no recognition that I pushed the button. The same happens when I push the talk button. My mom has used the bluetooth phone capability before, but I cannot get anything to work now. Is there anyway to reset the head unit to factory settings somehow? Any ideas?