Mercedes-Benz 2015 GLK Operator's Manual page 208

Driving systems
206
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
G WARNING
Lane Keeping Assist may not always clearly
recognize lane markings.
In this case, Lane Keeping Assist may:
give an unnecessary warning
R
not give a warning
R
There is a risk of an accident.
Always pay particular attention to the traffic
situation and stay in lane, in particular if
warned by Lane Keeping Assist.
G WARNING
The Lane Keeping Assist warning does not
return the vehicle to the original lane. There is
a risk of an accident.
You should always steer, brake or accelerate
yourself, in particular if warned by Lane Keep-
ing Assist.
The Lane Keeping Assist does not keep the
vehicle in the lane.
The system may be impaired or may not func-
tion if:
there is poor visibility, e.g. due to insuffi-
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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 reflections (e.g. when the road
surface is wet)
the windshield is dirty, fogged up, damaged
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or covered, for instance by a sticker, in the
vicinity of the camera
there are no, several or unclear lane mark-
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ings for a lane, e.g. in areas with road con-
struction work
the lane markings are worn away, dark or
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covered up, e.g. by dirt or snow
the distance to the vehicle in front is too
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small and the lane markings thus cannot be
detected
the lane markings change quickly, e.g.
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lanes branch off, cross one another or
merge
the road is narrow and winding
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there are strong shadows cast on the lane
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Switching on Lane Keeping Assist
Switch on Active Lane Keeping Assist using
X
the on-board computer; to do so, select
Standard Standard or Adaptive Adaptive(
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected,
the lines in the assistance graphics display
( page 229) are shown in green. Lane
Y
Keeping Assist is ready for use.
Standard
If Standard Standard is selected, no warning vibration
occurs if:
you switch on the turn signals. In this event,
R
the warnings are suppressed for a certain
period of time.
a driving safety system intervenes, such as
R
®
ABS, BAS or ESP .
Adaptive
When Adaptive Adaptive is selected, no warning vibra-
tion occurs if:
you switch on the turn signals. In this event,
R
the warnings are suppressed for a certain
period of time.
a driving safety system intervenes, e.g.
R
®
ABS, BAS or ESP .
you accelerate hard, e.g. kickdown.
R
you brake hard.
R
you steer actively, e.g. swerve to avoid an
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obstacle or change lanes quickly.
you cut the corner on a sharp bend.
R
In order that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system recognizes certain con-
ditions and warns you accordingly.
page 230).
Y