Parking Sensors; Activation; Towing Trailers - Alfa Romeo 147 Owner's Manual

PARKING SENSORS

(upon request for versions/
markets where applicable)
These sensors are located in the car rear
bumper (fig. 170); their function is to de-
tect and warn the driver , through an inter-
mittent buzzer, about the presence of ob-
stacles in the car rear area.
fig. 170

ACTIVATION

The sensors are activate automatically
when reverse gear is engaged.
As the distance from the obstacle behind
the car diminishes,the buzzer frequency will
increase.
BUZZER
Engaging reverse gear an intermittent
buzzer is automatically activated.
The buzzer:
– increases as the distance between the
car and the obstacle diminishes;
– becomes continuous as the distance be-
tween the car and the obstacle is below ap-
prox. 30 cm and stops immediately if the
distance increases.
– remains constant if the distance be-
tween the car and the obstacle is the same,
while, if this situation occurs for the side sen-
A0A1053m
sors, the signal is interrupted after about 3
seconds to avoid, for example, signalling
in the event of manoeuvres along the walls.

TOWING TRAILERS

The operation of the rear
sensors is automatically
deactivated as soon as the
electric cable plug of the trailer is
inserted in the car tow hook out-
let.
The rear sensors are automatically re-acti-
vated when the trailer cable plug is removed.
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