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Driver assistance systems
System limitations
Fig. 260
On the instrument panel display: ini-
tial syst
em self
-calibr
ation indication.
Front Assist has certain limitations inherent to
the syst
em. Thus, in cert
ain cir
cumst
ances,
some of the r
eactions may be inappr
opriat
e
from the driver's standpoint. So pay attention
in order to intervene if necessary.
The following conditions may cause the
Front Assist not to react or to do so too
late:
●
In the first few instants of driving after
switching on the ignition, due to the system’s
initial auto-calibration. During this period, a
status icon
›››
Fig. 260is displayed.
●
If the Front Assist is switched off or dam-
aged.
●
If the radar sensor is dirty or covered.
●
On taking tight bends or complex paths.
●
Pressing the accelerator all the way down.
●
If the ASR has been disconnected or the
ESC activated in Sport mode
›››
page 304.
●
If the ESC is controlling.
●
If several brake lights of the vehicle or elec-
trically connected trailer are damaged.
●
If there are metal objects, e.g. guard rails or
sheets used in road works.
●
If the vehicle is reversing.
●
In case of snow or heavy rain.
●
In case of narrow vehicles, such as motor-
bikes.
●
Misaligned vehicles.
●
Vehicles crossing the other's path.
●
Vehicles approaching in the opposite direc-
tion.
●
Loads and accessories of other vehicles
that protrude over the sides, backwards or
over the top.
ACC - Adaptive Cruise Con-
trol*
Introduction
Fig. 261 Related video
Fig. 262
Detection area.
The ACC is an e
xt
ension of the v
ehicl
e
’
s
cruise contr
ol function (GRA)
›››
.
It all
o
ws the driv
er t
o set a cruise speed be-
tw
een 30 km/h (20 mph) and 2
10 km/h (
130
mph), and select the desired distance from
the previous in front.
»
277
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