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Driving
Rear cross traffic alert (RCTA)
Fig. 199
Schematic representation of the rear
cr
oss traffic alert assistant: zone monitored
around the vehicle while leaving a parking
space.
Park Assist uses the radar sensors on the rear
bumper
›
››
page 246 to monitor the traffic
crossing behind the vehicle as it backs out of
a parallel parking space or as it is being man-
oeuvred, for example in very low visibility con-
ditions.
When the system detects a relevant vehicle
on the road that is approaching the rear of
the vehicle
›››
Fig. 199, an acoustic alarm
may sound if the relevance so requires it.
In addition to the acoustic alarm, the driver is
also informed by means of a visual signal on
infotainment system display. This signal is dis-
played in the form of a red or yellow strip at
the back of the image of the vehicle on the in-
fotainment system screen. This strip displays
the side of the vehicle towards which traffic is
approaching in transverse direction
1)
.
Automatic braking to reduce damages
If the rear cross traffic alert detects that
someone else on the road is approaching the
rear of the vehicle and the driver does not
step on the brake, the system will engage the
brakes automatically.
The parking system helps the driver by auto-
matically engaging the brakes to reduce any
damage. The automatic intervention on the
brakes takes place when driving in reverse at
approx. 1-12 km/h (1-7 mph). After detecting
that the vehicle is stationary, the system
keeps it that way for around 2 seconds.
After automatically braking to reduce dam-
age, the system will not be able to automati-
cally brake again for approximately 10 sec-
onds.
You can interrupt the automatic braking by
stepping hard on the accelerator pedal or
the brake pedal in order to regain control of
the vehicle.
WARNING
The smart technology incorporated into
the r
ear cross traffic alert cannot over-
come the limits imposed by the laws of
physics; it only works within the limits of the
system. The parking assistant function
should not tempt you into taking any risks.
The system is not a replacement for driver
awareness.
●
The system should never be used in limi-
ted visibility conditions or complicated
traffic, e.g., in high-traffic areas or when
crossing multiple lanes.
●
Be sure to always be aware of the vehi-
cle's surroundings, since the system often
fails to detect things such as bicycles or
pedestrians.
●
The rear cross traffic alert itself will not
brake the vehicle to a complete stop.
Managing the assist systems
Enabling and disabling the assist systems
The blind spot det
ector with parking assistant
can be switched on and off by accessing the
Assistance systems menu on the dash panel
display using the steering wheel controls. If
the vehicle is equipped with a multifunction
1)
It is only displayed if the vehicle is equipped
with a parking syst
em.
272
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