a double warning tone and red warning
lamp : flashes. If the turn signal remains on,
detected vehicles are indicated by the flash-
ing of red warning lamp :. There are no fur-
ther warning tones.
Course-correcting brake application
G
WARNING
A course-correcting brake application cannot
always prevent a collision. There is a risk of
an accident.
Always steer, brake or accelerate yourself,
especially if Active Blind Spot Assist warns
you or makes a course-correcting brake appli-
cation. Always maintain a safe distance at the
sides.
In very rare cases, the system may make an
inappropriate brake application. An inappro-
priate brake application may be interrupted
at any time if you steer slightly in the opposite
direction or accelerate.
If Active Blind Spot Assist detects a risk of a
side impact in the monitoring range, a course-
correcting brake application is carried out.
This is designed to help you avoid a collision.
The course-correcting brake application is
available in the speed range between
30 km/h and 200 km/h.
If a course-correcting brake application
occurs, red warning lamp : flashes in the
exterior mirror and the following is shown in
the multifunction display, for example:
Example: vehicles with automatic transmission
Either a very slight course-correcting brake
application, or none at all, may occur if:
R
there are vehicles or obstacles, e.g. crash
barriers, on both sides of your vehicle
R
a vehicle approaches too closely on the
side
R
you have adopted a sporty driving style with
high cornering speeds
R
you brake or accelerate decisively
R
a driving safety system intervenes, such as
ESP
®
or PRE-SAFE
®
Brake
R
ESP
®
is deactivated
R
a loss of tyre pressure or a defective tyre is
detected
Activating Active Blind Spot Assist
X
Make sure that Active Blind Spot Assist
(Y page 250) is activated in the on-board
computer.
X
Turn the key to position 2 in the ignition
lock.
Warning lamps : in the exterior mirrors
light up red for approximately
1.5 seconds and then turn yellow.
Towing a trailer
If you attach a trailer, make sure that you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. Active Blind Spot Assist is
then deactivated. The indicator lamp lights up
yellow in the exterior mirrors and the Active
Blind Spot Assist currently unavail‐
able See Owner's Manual message
appears in the multifunction display.
Active Lane Keeping Assist
General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of cam-
era : mounted at the top of the windscreen.
Active Lane Keeping Assist detects lane
markings on the road and warns you before
you leave your lane unintentionally. If you do
not react to the warning, a lane-correcting
224
Driving systems
Driving and parking
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