Driver assistance systems
●
If the r
adar sensor is t
emporarily covered
by an accessory.
●
When the vehicle is going to be loaded on-
to transportation.
System limitations
Fig. 213
On the instrument panel display: initial
system self-calibration indication.
Front Assist has certain limitations inherent
t
o the s
ystem. Thus, in certain circumstan-
ces, some of the reactions may be inappro-
priate 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. 213is 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 281.
●
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 di-
rection.
●
Loads and accessories of other vehicles
that protrude over the sides, backwards or
over the top.
ACC - Adaptive Cruise Control*
Introduction
Fig. 214 Detection area.
The ACC is an e
xt
ension of the vehicle’s
cruise control function (GRA)
›››
.
It allo
w
s the driver to set a cruise speed be-
tween 30 km/h (20 mph) and 210 km/h (130
mph), and select the desired distance from
the vehicle in front.
The ACC adapts the cruising speed of the
vehicle, keeping a safe distance away from
the vehicle in front, if there is one, depend-
ing on speed.
When driving behind another vehicle, the
ACC reduces speed until it is the same as
that of the vehicle ahead and maintains the
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