Alfa Romeo Tonale Owner's Handbook Manual page 162

DEACTIVATION
The device is deactivated and the set
speed is cancelled if:
the button (1) fig. 157 is pressed on the
Adaptive Cruise Control
the ignition device is set to STOP
the device is cancelled:
when pressing the CANC button on the
steering wheel (fig. 157)
when the conditions indicated in the
paragraph "Setting the desired speed"
occur
when of the car speed drops under the
minimum set speed (e.g. in presence of
slow vehicles)
when the radar on the front bumper is
unavailable
when reaching very steep slopes
If these conditions occur while the
system is decelerating with respect to a
vehicle ahead, the system could continue
the deceleration, if necessary, also after
it is cancelled or deactivated within the
minimum speed settable on the system.
SYSTEM LIMITED OPERATION
WARNING
If the dedicated message is shown on the
display, a condition limiting the system
operation may have occurred.
The possible reasons of this limitation
are a fault, blinding of one of the sensors
or something blocking the camera view.
160
In case of obstruction or blinding of the
camera (e.g. caused by low sun in front
of the windscreen or in the conditions
of fog or heavy rain), wait until the light
and glare conditions cease and allow
the system to operate fully or clean the
windscreen.
In case of radar sensor obstruction, clean
the sensor position in the zone shown in
fig. 164.
Use a clean cloth for cleaning. Do not use
solvents or abrasive paste.
When the conditions limiting the system
functions end, this will go back to normal
and complete operation. Should the
fault persist, contact an Alfa Romeo
Dealership.
PRECAUTIONS WHILE DRIVING
The device may not work correctly in
some driving conditions (see below): the
driver must control the car at all times.
Towing a trailer
Use of the device is not recommended
while towing a trailer.
Vehicle not aligned
The device may not detect a vehicle
travelling on the same lane but which is
not aligned along the same direction of
travel or a vehicle which is cutting in from
a side lane. Sufficient distance from the
vehicles ahead may not be guaranteed in
these cases.
The non-aligned vehicle can weave in and
out of the driving direction causing the
car to brake or accelerate unexpectedly.
Steering and curves
On curves fig. 160 with the device set,
it could limit speed and acceleration to
guarantee car stability even if no cars are
detected ahead.
When leaving the curve, the device resets
the previously set speed.
160
WARNING In case of narrow curves,
the performance of the device could
be limited. In this case, it is advisable to
deactivate the device. In this case, it is
advisable to deactivate the device.
Using the device on gradient
When driving on roads with variable
gradient, the device may not detect the
presence of a vehicle on the lane. Device
performance could be limited according
to speed, load, traffic conditions and
gradient steepness.
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