Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual page 213

Driving systems
210
Example: vehicles with automatic transmission
Either a very slight course-correcting brake
application, or none at all, may occur if:
there are vehicles or obstacles, e.g. crash
R
barriers, on both sides of your vehicle.
a vehicle approaches too closely on the
R
side.
you have adopted a sporty driving style with
R
high cornering speeds.
you brake or accelerate decisively.
R
a driving safety system intervenes, such as
R
®
ESP or PRE-SAFE
®
R ESP is deactivated.
the Off-road program is activated.
R
a loss of tyre pressure or a defective tyre is
R
detected.
Activating Active Blind Spot Assist
Make sure that the radar sensor system
X
( page 242) and Active Blind Spot Assist
Y
( page 237) are activated in the on-board
Y
computer.
Turn the key to position 2 in the ignition
X
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
Blind Blind Spot Spot Assist Assist currently
able See Owner's Manual able See Owner's Manual
appears in the multifunction display.
®
Brake.
Active Active
currently unavail‐ unavail‐
message
Active Lane Keeping Assist
Important safety notes
G
WARNING
Active Lane Keeping Assist does not keep
your vehicle in its lane. It is only an aid and
may detect the lane markings on the road
incorrectly or not at all.
The system may be impaired or may not func-
tion if:
several or no lane markings for a single lane
R
are present.
there is poor visibility, e.g. due to insuffi-
R
cient illumination of the road, or due to
snow, rain, fog or spray.
there is glare, e.g. from oncoming traffic,
R
the sun, or reflection from other vehicles.
the windscreen is dirty, misted up or cov-
R
ered, for instance by a sticker, in the vicinity
of the camera.
the lane markings are worn away, dark or
R
covered up, e.g. by dirt or snow.
the distance to the vehicle in front is too
R
small and the lane markings thus cannot be
detected.
the lane markings on the road are unclear,
R
e.g. near roadworks.
the lane markings change quickly, e.g.
R
lanes branch off, cross one another or
merge.
the road is narrow and winding.
R
Active Lane Keeping Assist cannot detect
road and traffic conditions. It is not a substi-
tute for attentive driving. You are responsible
for the vehicle's speed, braking in good time,
and steering correctly. Always adapt your
driving style to suit the prevailing road and
weather conditions. Always pay attention to
traffic conditions and your surroundings. Oth-
erwise, you may fail to recognise dangers in
time, cause an accident and injure yourself
and others.
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of a camera