Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual page 209

Driving systems
206
the lane markings on the road incorrectly or
not at all.
The system may be impaired or may not func-
tion if:
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
several or no lane markings for a single lane
R
are present.
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
Lane Keeping Assist cannot detect road and
traffic conditions. It is not a substitute 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. Otherwise,
you may fail to recognise dangers in time,
cause an accident and injure yourself and oth-
ers.
Lane Keeping Assist monitors the area in
front of your vehicle by means of camera :
at the top of the windscreen. Lane Keeping
Assist detects lane markings on the road and
warns you before you leave your lane unin-
tentionally.
Active Lane Keeping Assist camera
:
If you select km km on the on-board computer in
the Display unit Speed-/odometer: Display unit Speed-/odometer:
function ( page 238), Lane Keeping Assist
Y
is active starting at a speed of 60 km/h. If the
miles miles display unit is selected, the assistance
range begins at 40 mph.
A warning may be given if a front wheel
passes over a lane marking. It will warn you
by means of intermittent vibration in the
steering wheel for up to 1.5 seconds.
Activating Lane Keeping Assist
Example: vehicles with automatic transmission
Switch on Active Lane Keeping Assist using
X
the on-board computer; to do so, select
Standard Standard or Adaptive Adaptive(
Symbol : appears in the multifunction
display.
If you drive at speeds above 60 km/h and
lane markings are detected, symbol : is
shown in green. Lane Keeping Assist is
ready for use.
Standard
If Standard Standard is selected, no warning vibration
occurs if:
page 238).
Y