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DRIVER SUPPORT
222
Driver Alert System
The Driver Alert System is designed to help a
driver who may be becoming fatigued or who is
inadvertently leaving the lane.
Introduction
The Driver Alert System consists of two different
functions that can be switched on together or
separately.
•
Driver Alert Control (DAC), see Driver Alert
Control (DAC) – introduction (p. 222)
•
Lane Departure Warning (LDW)
9
, see Lane
Departure Warning (LDW) – introduction
(p. 228)
or
•
Lane Keeping Aid (LKA)
10
, see Lane Keep-
ing Aid (LKA) – introduction (p. 233)
When one or both of the functions has been
switched on, it is in standby mode and is acti-
vated when the vehicle exceeds a speed of
40 mph (65 km/h).
The function deactivates if the vehicle's speed
goes under 37 mph (60 km/h).
Both functions use a camera that is dependent
on the road/lane being clearly marked by painted
lines on each side.
WARNING
The Driver Alert System does not function in
all situations and is designed to be a supple-
mentary aid. It is not, however, intended to
replace the driver’s attention and judgement.
Driver Alert Control (DAC) –
introduction
DAC is intended to alert the driver if his/her driv-
ing becomes erratic, such as if the driver is dis-
tracted or fatigued.
DAC is designed to help detect a slowly chang-
ing driving pattern. It is primarily intended to be
used on main roads and is not meant for use in
city traffic.
A camera monitors the painted lines marking the
lane in which the vehicle is traveling and com-
pares the direction of the road with the driver’s
movements of the steering wheel. The driver is
alerted if the vehicle does not follow the lane
smoothly.
9
Models with 5- or 6-cylinder engines only.
10
Models with 4-cylinder engines only.
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