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DRIVER SUPPORT
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* Option/accessory.
373
NOTE
The function uses the vehicle's camera unit,
which has some general limitations – see the
section "Camera unit limitations".
Related information
•
Road Sign Information* (p. 367)
•
Camera limitations (p. 341)
Driver Alert Control
The Driver Alert Control (DAC) function is
designed to help capture the driver become
aware of erratic behavior, e.g. if the driver is dis-
tracted or showing signs of fatigue.
The objective of DAC is to detect slowly deterio-
rating driving behavior and is primarily intended to
be used on major roads. The function is not
intended for use in city traffic.
DAC is activated when the vehicle's speed
exceeds 65 km/h (40 mph) and remains active
as long as speeds are above 60 km/h (37 mph).
DAC detects the vehicle's position in the traffic lane.
A camera monitors the traffic lane's marker lines
and compares the direction of the road with the
driver's movements of the steering wheel.
The vehicle is moving erratically in the lane.
If driving behavior becomes
considerably erratic, the driver
will be alerted by this symbol in
the instrument panel, an audi-
ble signal and the message
Time for a break.
If the vehicle is equipped with Sensus
Navigation* and the
Rest Stop Guidance func-
tion is activated, a suitable place to take a break
will also be suggested (see section “Selecting
guidance to a rest stop if a Driver Alert Control
warning has been given”).
The warning will be repeated after a short time if
driving behavior does not improve.
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