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Driving
Proactive speed adjustment
Intr
oduction
The proactive speed adjustment adapts the
speed to the speed limit
ations detected and
to the road layout (curves, crossings, round-
abouts, etc.).
Proactive speed adjustment is an additional
function of the ACC
›››
page 248 and uses
the traffic signal detection system
›››
page 76 and the navigation data of the in-
fotainment system.
Proactive speed adjustment is available de-
pending on the equipment, although not in all
countries.
WARNING
The proactive speed adjustment smart
technol
ogy cannot overcome the limits im-
posed by the laws of physics and it only
works within the limits of the system. Never
allow the enhanced convenience of this
function induce you to take any risk that
compromises safety. If used negligently or
involuntarily, it may cause serious acci-
dents and injuries. The system is not a re-
placement for driver awareness.
●
Always adapt your speed to suit visibility,
weather, road and traffic conditions.
●
Always pay attention to traffic and al-
ways keep the vehicle environment in mind.
●
Alw
ays be prepared to adjust the speed
yourself. If the traffic sign recognition sys-
tem is not working properly or the naviga-
tion data is not updated, the speed may
change unexpectedly and suddenly or may
not be suitable for the current traffic situa-
tion. In addition, the speed adjusted by the
system may not suit your driving style.
●
Always be prepared to adjust the speed
yourself. If you drive without any active gui-
ded route, if you leave the route calculated
by the navigation system or if the position
of the vehicle cannot be determined cor-
rectly because the GPS does not provide
accurate data, the speed may change un-
expectedly and suddenly or may not adapt
to the current traffic situation.
●
Always use up to date navigation data.
●
Always take into account the maximum
permitted speed. In the case of speed limi-
tations that are not included in the naviga-
tion data, the maximum permitted speed
may be exceeded.
Note
Also note the information related to the
ACC rel
evant to safety
›››
page 248.
Limitations of the proactive speed
adjustment
In addition to the limitations of the traffic sig-
nal detection syst
em
›››
page 76 and of the
limitations of the ACC, proactive speed ad-
justment has the following limitations inherent
to the system:
●
Proactive speed adjustment only recogni-
ses traffic signals that show a speed limita-
tion. The proactive speed adjustment does
not take into account, above all, the rules on
priority of passage or traffic lights.
●
On roads that are not included in the navi-
gation data, or that ar
e included with little
accuracy, proactive speed adjustment is not
available.
●
If a speed limitation is notified based on the
navigation data without it being detected by
the traffic signal detection system, the indica-
ted speed will be adjusted to the speed that
was saved the last time.
●
Proactive speed adjustment is not available
for speed limitations below approx. 20 km/h
(approx. 15 mph). In this case, a relevant mes-
sage is displayed on the instrument panel
screen.
254
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