Alfa Romeo STELVIO 949 Owner's Handbook Manual page 125

Engagement/disengagement
To disengage the system, press button
fig. 125 .
The LED in the button will light up or not
when the system switches from on to off
(and vice versa).
LED off: system activated;
LED light on steady: system
deactivated.
If the button is pressed with a system
failure, the LED flashes for about
5 seconds, then it stays on constantly.
When the ignition device is set to ON the
Park Sensors system keeps the last state
when the engine was stopped (activated
or deactivated) in its memory.
System activation/deactivation
When the reverse gear is engaged and
the system is on, the front and rear
sensors are activated. If a different gear
is engaged, the rear sensors are
deactivated, while the front sensors
remain active until 10 mph (15 km/h) are
exceeded.
Operation with a trailer
The operation of the rear sensors is
automatically deactivated when the
trailer's electric plug is inserted in the
vehicle's tow hook socket, while the front
sensors stay active and can provide
acoustic and visual warnings. The rear
sensors are automatically reactivated
when the trailer's cable plug is removed.
Important notes
Some conditions may influence the
performance of the parking system:
reduced sensor sensitivity and a
reduction in the parking assistance
system performance could be due to the
presence of: ice, snow, mud, thick paint,
on the surface of the sensor;
the sensor may detect a non-existent
obstacle ("echo interference") due to
mechanical interference, for example
when washing the vehicle, in rain (strong
wind), hail;
the signals sent by the sensor can also
be altered by the presence of ultrasonic
systems (e.g. pneumatic brake systems
of trucks or pneumatic drills) near the
vehicle;
parking assistance system
performance can also be influenced by
the position of the sensors, for example
due to a change in the ride setting
(caused by wear to the shock absorbers,
suspension), or by changing tyres,
overloading the vehicle or carrying out
specific tuning operations that require
the vehicle to be lowered;
the presence of a tow hook without
trailer, which may interfere with the
correct operation of the parking sensors.
Alfawiki.nl
Before using the Park Sensors system, it
is recommended to remove the tow hook
ball assembly when the vehicle is not
used for towing. Failure to comply with
this prescription may cause personal
injuries or damage to vehicles or
obstacles since, when the continuous
acoustic signal is emitted, the tow hook
ball is already in a position that is much
closer to the obstacle than the rear
bumper. If you wish to leave the tow hook
fitted without towing a trailer, it is
advisable to contact an Alfa Romeo
Dealership for the Park Sensors system
update operations because the tow hook
could be detected as an obstacle by the
central sensors.
the presence of adhesives on the
sensors. Therefore, take care not to place
adhesives on the sensors.
WARNING
121) Parking and other potentially
dangerous manoeuvres are, however,
always the driver's responsibility. When
performing these operations, always make
sure that there are no other people
(especially children) or animals on the route
you want to take. The parking sensors are an
aid for the driver, but the driver must never
allow their attention to lapse during
potentially dangerous manoeuvres, even
those executed at low speeds.
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