Alfa Romeo ALFA 159 2010, Owner'S Handbook Manual

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083-128 Alfa 159 GB 3-12-2009 14:09 Pagina 121
TOWING TRAILERS If a failure is indicated, stop the car, turn GENERAL WARNINGS
the engine off and then clean the sen-
Rear sensors are reactivated automati- When parking, take the utmost care to
sors. Make sure to be far from possible
cally when removing the trailer cable obstacles that may be set above or un-
ultrasound sources (e.g.: truck pneu-
plug. der the sensors. Objects set close to the
matic brakes or pneumatic hammers).
car front or rear part, under certain cir-
If failure cause has been eliminated the
cumstances are not detected and could
system will resume regular operation
therefore cause damages to the car or
and warning t and the corresponding
Rear sensors operation
be damaged.
warning message will turn off.
is deactivated automat-
Indications sent by the sensors can be
ically when the trailer
If the warning light stays on, contact Al-
altered by dirt, snow or ice deposited on
electric cable plug is fitted into
fa Romeo Authorized Services to have
the sensors or by ultrasound systems
the car tow hook socket.
the system inspected, although the sys-
(e.g.: truck pneumatic brakes or pneu-
tem keeps on working. If the failure de-
matic hammers) set nearby the car.
tected does not impair system operation,
the system keeps on working and fail-
FAILURE INDICATIONS
ure is stored in order to be then detect-
The system control unit checks every
ed by Alfa Romeo Authorized Services
system component each time the key is at next inspection.
fitted into the ignition device. Sensors
and relevant electrical connections are
then constantly monitored during sys-
tem operation.
Sensor failure is indicated by turning on
of warning light t (where provided)
on the instrument panel (on certain ver-
sions together with the message on the
display) (see section “Warning lights
and messages”).
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