Place/Retrieve a Call From Hold
To put a call on hold, press the 
button until you hear a single beep. This indicates that the call is on hold. To
bring the call back from hold, press and hold the
button until you hear a single beep.
See also:
Working With Automated Systems
This method is used in instances where one generally has
to press numbers on the mobile phone keypad while
navigating through an automated telephone system.
You can use your Uconnect™ Phone to ...
RW/FF
Pressing the RW (Rewind) or FF (Fast Forward) buttons causes the tuner to search
for the next frequency in the direction of the arrows. This feature operates in
either AM or FM frequencies. ...
Power Switch/Volume Control (Rotary)
Push the ON/VOLUME control knob to turn on the radio. Push the ON/VOLUME control
knob a second time to turn off the radio. ...