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Predictive speed adjust-
ment
Introduction
The predictive speed adjustment adapts the
speed to the speed limitations detected and
to the road layout (curves, crossings, round-
abouts, etc.).
Predictive speed adjustment is an additional
›››
function of the ACC
page 181
›››
traffic signal detection system
the navigation data of the infotainment system.
Predictive speed adjustment is available de-
pending on the equipment, although not in all
countries.
WARNING
The predictive speed adjustment smart tech-
nology cannot overcome the limits imposed
by the laws of physics and it only works within
the limits of the system. Never allow the en-
hanced convenience of this function induce
you to take any risk that compromises safety.
If used negligently or involuntarily, it may
cause serious accidents and injuries. The sys-
tem is not a replacement for driver aware-
ness.
●
Always adapt your speed to suit visibility,
weather, road and traffic conditions.
●
Always pay attention to traffic and always
keep the vehicle environment in mind.
Predictive speed adjustment
Assistant systems
●
Always be prepared to adjust the speed
yourself. If the traffic sign recognition system
is not working properly or the navigation data
is not updated, the speed may change unex-
pectedly and suddenly or may not be suitable
for the current traffic situation. 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
and uses the
the vehicle cannot be determined correctly
page 26
and
because the GPS does not provide accurate
data, the speed may change unexpectedly
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 limita-
tions that are not included in the navigation
data, the maximum permitted speed may be
exceeded.
Note
Also note the information related to the ACC
relevant to safety
›››
page 181
.
Limitations of the predictive speed
adjustment
In addition to the limitations of the road sign
›››
detection system
page 26
and the limita-
tions of the ACC, predictive speed adjustment
has the following limitations inherent to the
system:
●
Predictive speed adjustment only recognises
traffic signals that show a speed limitation. The
predictive speed adjustment does not take into
account, above all, the rules on priority of pas-
sage or traffic lights.
●
Traffic signs that indirectly show a speed re-
striction, e.g. signs at the entrance to towns,
are only recognised on the basis of navigation
data.
●
On roads that are not included in the naviga-
tion data, or that are included with little accu-
racy, predictive speed adjustment is not availa-
ble.
●
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.
●
Predictive 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.
187
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