Fiat Doblo - Page 155

ACOUSTIC SIGNAL
When reverse gear is engaged an
intermittent acoustic signal is
automatically activated.
The frequency of the acoustic signal:
❒ increases as the distance between
the vehicle and the obstacle
decreases;
❒ becomes continuous when the
distance between the vehicle and the
obstacle is less than 30 cm and
stops immediately if the distance
increases;
❒ is constant if the distance between
the vehicle and the obstacle is
unchanged;
❒ whereas, if this situation occurs for
the side sensors, the indication will
stop after about 3 seconds to avoid,
for example, warning indications in
the event of manoeuvres alongside
walls.
Detection distances
If several obstacles are detected by
the sensors, only the nearest one
is considered.
FAULT INDICATIONS
Any parking sensor faults will be
indicated when reverse is engaged
by the warning light in the
instrument panel switching on
together with the message in the
multifunction display, for
versions/markets, where provided
(see chapter "Warning lights and
messages”).
97)
OPERATION WITH
TRAILER
Parking sensor operation is
automatically deactivated when the
electric cable plug of the trailer is
inserted into the vehicle tow hook
socket. The sensors are
automatically reactivated when the
trailer's cable plug is removed.
IMPORTANT
If you wish to leave the tow hook
fitted without towing a trailer, it
is advisable to contact a Fiat
Dealership for the relevant system
update operations because the tow
hook could be detected as an
obstacle by the central sensors.
GENERAL WARNINGS
98)
❒ When parking, take the utmost care
over obstacles that may be above or
under the sensor.
❒ Sometimes, objects located very
near the rear of the vehicle are not
detected and could therefore
damage the vehicle or be damaged
themselves.
The following conditions may
influence the performance of the
parking assistance system:
❒ Reduced sensor sensitivity and a
reduction in the parking assistance
system performance could be due to
the presence on the surface of the
sensor of: ice, snow, mud, thick
paint.
❒ The sensor may detect a non-
existent obstacle (echo noise) due to
mechanical noises, for example
when washing the vehicle, in case of
rain, strong wind, hail.
❒ The signals sent out by the sensors
can be altered by dirt, snow or ice
deposited on the sensors or by
ultrasound systems (e.g. truck
pneumatic brakes or pneumatic drills)
near the vehicle.
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