Pioneer AVIC-F20BT Operation Manual page 166

Appendix
Appendix
Problems with the phone screen
Symptom
Dialling is not possible because
the touch panel keys for dialling
are inactive.
If the screen becomes frozen...
Park your vehicle in a safe place, and turn off
the engine. Turn the ignition key back to Acc
off. Then start the engine again, and turn the
power to the navigation system back on.
166
Engb
Cause
Your phone is out of range for ser-
vice.
The connection between the mobile
phone and the navigation system
cannot be established now.
Action (Reference)
Retry after re-entering the range for service.
Perform the connection process.