A/C information does not display on the center display unit, but the blower, heater and A/C system controls work (climate control panel without display) (2017 2018 2019)

Diagnostic Procedure 

Probable cause: Communication malfunction between the audio unit *1 or the audio-navigation unit *2 and the climate control unit

Check the B-CAN line between the audio unit *1 or the audio-navigation unit *2 and the climate control unit

Also Check for 

Climate control DTCs