DRIVER SUPPORT
Driver Alert Control limitations
Driver Alert Control (DAC) functionality may
be reduced in certain situations.
In certain situations, the system may provide a
warning even if it has not detected a change in
driving behavior, e.g.:
Lane Keeping Aid
Lane Keeping Aid (LKA88) is designed to
actively steer the vehicle on freeways, high-
ways and other major roads to help the driver
reduce the risk of the vehicle unintentionally
veering out of the lane.
Lake Keeping Aid steers the vehicle back into
the lane and/or alerts the driver using vibra-
tions in the steering wheel.
in strong crosswinds
•
•
on grooved road surfaces.
Lane Keeping Aid is active at speeds between
65–200 km/h (40–125 mph) on roads with
clearly visible traffic lane marker lines.
WARNING
In certain cases, driving behavior might not
be affected despite the driver's fatigue –
when using the Pilot Assist* function –
resulting in the driver not getting a warning
from DAC.
A camera monitors the road/traffic lane's marker
lines.
On narrow roads, the function may be unavail-
able and go into standby mode. The function
will become available again when the road
becomes sufficiently wide.
It is therefore very important to always
stop and take a break at the slightest sign
of fatigue, regardless of whether the func-
tion has issued a warning or not.
NOTE
The function uses the vehicle's camera and
radar sensor, which has certain general
limitations.
Lane Keeping Aid steers the vehicle back into its
lane.
Related information
Driver Alert Control (p. 342)
•
Camera/radar sensor limitations (p. 309)
•
88
Lane Keeping Aid
344
* Option/accessory.
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