Fiat 500 Owner's Handbook Manual page 202

Controls on steering wheel summary table
Buttons Interaction
Acceptance of incoming call
Acceptance of the second incoming call and putting the active call on hold
Last 10 calls list on the instrument panel (with call browsing active and phone paired only)
Activation of voice recognition
Interruption of the voice message in order to give a new voice command
Interruption of voice recognition
Long press: interaction with Siri, Apple CarPlay and Android Auto
Rejection of incoming call
Ending of call in progress
Exit the display on the instrument panel of the last calls (only with call browsing active)
Short press (Radio mode): selection of next/previous station
Long press (Radio mode): scan higher/lower frequencies until released
Bluetooth
Short press (USB, ® mode): selection of previous/next track
Bluetooth
Long press (USB, ® mode): fast forward/rewind until released
Short press (phone mode): selection of next/previous call (only with call browsing active)
Short press: volume increase/decrease in single steps
+/-
Long press: volume continuous increase/decrease until released
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