Alfa Romeo Tonale Owner's Handbook Manual page 191

the additional fog signal will appear if
the front or rear fog lights are on
the additional snow signal will appear
if the external temperature is equal to
or lower than 3°C and the windscreen
wipers are working
the additional rain signal will appear if
the windscreen wipers are working
The no overtaking road sign C may also
be shown on the display.
Furthermore, the various road signals
detected by the system can be shown in
the Driver Assist of the instrument panel
display in addition to the dedicated area
of the instrument panel display (see the
"Display" paragraph in the "Knowing the
instrument panel" chapter).
With Alfa Connect system without
navigation system
The TSR system uses only the camera
to remind the user of the last road limit
recognised by the camera.
NOTE Without a navigator, the system
cannot provide:
the implicit limits (e.g. the general
speed limit on motorways). In these
cases the system can show the last road
sign encountered (e.g. the speed limit of
the entrance ramp)
in general, the limit in force for a
road where a speed limit sign was not
previously encountered and correctly
recognised
After travelling a certain distance, the
road limit symbol turns grey to indicate
that it is no longer considered reliable
by the system. Upon recognition of a
new sign, the TSR symbol will become
coloured again.
WARNING In the absence of a navigator,
the system cannot recognise the unit
of measurement of the country you are
travelling in, but only the numerical
value of the road sign encountered along
the road. The speed limit suggested
and offered to Intelligent Speed Assist
(ISA) and Intelligent Adaptive Cruise
Control (IACC) systems (where active)
is therefore intended according to
the unit of measurement set by the
user on the instrument panel display.
Therefore, for the ISA and the IACC to be
of practical help in complying with the
limits in force, the driver must set the
unit of measurement consistent with the
country in which they are travelling.
With Alfa Connect system with
navigation system
When the navigator is present, the TSR
system integrates the detections made
by the camera with the information
provided by the navigation system.
Therefore, it can provide the implicit
limits (e.g. the general speed limit on
motorways) and to supplement with
maps the limitations of recognition of
road signs on the camera alone.
The navigator tells the system of the
unit of measurement in force in the
country in which you are travelling and
converts the value consistently with the
unit of measurement selected by the
user. In this way, the speed limitation
suggested by the ISA system or the
speed offered by the IACC system will
always be correct, regardless of the unit
of measurement chosen by the user.
The system can display the shape of the
signs consistently with the current shape
of the country in which you are travelling.
Using the information contained in the
navigator, the system can recognise
motorway, urban and non-urban
scenarios and to use the limits provided
by the navigator to provide the most
plausibly accurate speed limit. In
addition, the system can recognise turns
and provide, where necessary, the limit
detected by the navigator in place of that
recognised by the camera.
WARNING
163) The system only detects preset traffic
signs if the minimum visibility conditions
and distance from the sign are met.
164) The system is an aid for driving and
does not relieve the driver of responsibility
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