If an obstacle is behind the vehicle when REVERSE gear is engaged, an audible alert is activated.
The tones emitted by the loudspeaker inform the driver that the vehicle is approaching an obstacle. The pauses between the tones are directly proportional to the distance from the obstacle. Pulses emitted in quick succession indicate the presence of a very close obstacle. A continuous tone indicates that the obstacle is less than 12 in (30 cm) away.
Audible And Visual Signals Supplied By The Rear Park Assist System.

While audible signals are emitted, the audio system is not muted.
The audible signal is cut out immediately if the distance increases. The tone cycle remains constant if the distance measured by the inner sensors is constant. If this condition occurs for the external sensors, the signal is cut off after 3 seconds (stopping warnings during maneuvers parallel to walls).
See also:
Handbrake
The handbrake lever is located between the two front seats.
Pull the handbrake lever upwards until the car cannot be moved. Four or five
clicks are generally enough when the car is on level ground ...
Operation
Each time the car is started turning the ignition key to MAR, the Fiat CODE system
control unit sends a recognition code to the engine control unit to deactivate the
inhibitor.
The code is sent o ...
Brakes
SERVICE AND EMERGENCY BRAKES
Front:
– disc, floating shoe, self-ventilated.
Rear:
– drum, self-centering calipers.
Crossed hydraulic circuit control.
Vacuum brake booster.
ABS system with four ...


