Volvo XC 90 2016, Owner'S Manual

Page: 314 / 570

DRIVER SUPPORT
312
Driver Alert Control (DAC)
DAC is intended to alert the driver if his/her driv-
ing becomes erratic due to e.g., distraction or
fatigue.
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.
The function activates initially when the vehicle's
speed first exceeds 40 mph (65 km/h) and
remains active as long the speed remains above
approx. 38 mph (60 km/h)
A camera monitors the traffic lane's side marker
lines and compares the direction of the road with
the driver’s movements of the steering wheel.
If the driving pattern becomes
noticeably erratic, the driver will
be alerted by an audible signal
and
Driver Alert Time for a
break will appear in the instru-
ment panel along with a sym-
bol.
The warning will be repeated if the driving pattern
does not change.
WARNING
•
DAC is not intended to extend the dura-
tion of driving. Always plan breaks at reg-
ular intervals to help remain alert.
•
A warning from DAC should not be
ignored. A driver may not be aware of
how fatigued he/she has become.
•
In certain cases, fatigue may not affect
the driver’s behavior. In situations of this
type, no warning will be provided. There-
fore, it is important to take breaks at reg-
ular intervals, regardless of whether or
not DAC has given a warning.
Related information
•
Using Driver Alert Control (DAC) (p. 313)
•
Driver Alert Control limitations (p. 313)