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DRIVER SUPPORT
* Option/accessory.
324
Driver Alert Control limitations
Driver Alert Control (DAC) may have limited or
reduced functionality in certain situations.
WARNING
A driving pattern may not change despite
driver fatigue, e.g., if a function such as Pilot
Assist is being used, which means that DAC
will not provide a warning. It is always very
important to stop and take a break at the first
sign of driver fatigue, even if the system has
not provided a warning.
In certain situations, DAC may provide warnings
even if the driver’s driving pattern has not
become erratic:
•
in strong crosswinds
•
on grooved road surfaces.
NOTE
DAC uses the vehicle's camera, which has
certain general limitations. See the article
"Camera limitations" for additional informa-
tion.
Related information
•
Driver Alert Control (DAC) (p. 322)
•
Using Driver Alert Control (DAC) (p. 323)
•
Camera limitations (p. 297)
•
Pilot Assist* (p. 279)
Driving lane assistance
The
Lane Assistance functions are designed to
help reduce the risk of accidents in situations
where the vehicle unintentionally leaves its lane
on highways or other major roads.
Driving lane assistance system
Lane Keeping Aid (LKA) actively steers the vehi-
cle to help keep it in its traffic lane and/or alerts
the driver using an audible signal or through
vibrations in the steering wheel.
The driving lane assistance system is active at
speeds between approx. 40-125 mph
(65-200 km/h) on roads with clearly visible traf-
fic lane marker lines. Always observe posted
speed limits.
On narrow roads, the system may not function
and will go into standby mode. It will return to
active mode if the road becomes sufficiently
wide.
A camera monitors the road/traffic lane's marker lines.
Driving lane assistance attempts to steer the vehicle
back into its lane.
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