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In such cases, Active Lane Keeping Assist
can:
R
give an unnecessary warning and then
make a course-correcting brake applica-
tion
R
neither give a warning nor intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, espe-
cially if Active Lane Keeping Assist alerts
you. Terminate the intervention in a non-crit-
ical driving situation.
The system may be impaired or may not func-
tion if:
R
there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or heavy spray
R
there is glare, e.g. from oncoming traffic,
the sun or reflection from other vehicles
(e.g. if the road surface is wet)
R
the windshield is dirty, fogged up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R
there are no lane markings, or several
unclear lane markings are present, e.g.
around construction sites
R
the lane markings are worn away, dark or
covered up, e.g. by dirt or snow
R
the distance to the vehicle in front is too
short and thus the lane markings cannot be
detected
R
the lane markings change quickly, e.g. lanes
branch off, cross one another or merge
R
the road is narrow and winding
R
there are highly variable shade conditions
on the roadway
R
no vehicle is detected in the adjacent lane
and there are broken lane markings
Warning vibration in the steering wheel
A warning may be given if a front wheel passes
over a lane marking. You will then be warned
by means of a vibration through the steering
wheel lasting for up to 1.5 seconds.
In order that you are warned only when neces-
sary and in good time if you cross the lane
marking, the system detects certain condi-
tions and warns you accordingly.
The warning vibration occurs earlier if:
R
you approach the outer lane marking on a
bend
R
the road has very wide lanes, e.g. a freeway
R
the system detects solid lane markings
The warning vibration occurs later if:
R
the road has narrow lanes
R
you cut the corner on a bend
Lane-correcting brake application
G
WARNING
A lane-correcting brake application cannot
always bring the vehicle back into the origi-
nal lane. There is a risk of an accident.
Always steer, brake or accelerate yourself,
especially if Active Lane Keeping Assist
warns you or makes a lane-correcting brake
application.
G
WARNING
Active Lane Keeping Assist only detects traf-
fic conditions or road users to a limited
extent. In very rare cases, the system may
make an inappropriate brake application,
e.g. after intentionally driving over a solid
lane marking. There is a risk of an accident.
An inappropriate brake application may be
interrupted at any time if you steer slightly
in the opposite direction. Always make sure
that there is sufficient distance on the side
for other traffic or obstacles.
In rare cases, Active Lane Keeping Assist
could detect broken line markings or special
structures on the road surface as solid lane
markings. An inappropriate brake application
can be interrupted at any time, for example if
you steer slightly in the opposite direction.
188
Driving systems
Driving and parking
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