Volvo V90 Owner's Manual page 385

A camera detects the edge markings painted on
the carriageway and compares the alignment of
the road with the driver's steering wheel move-
ments.
The car is being driven erratically in the lane.
If driving behaviour becomes
noticeably inconsistent, the
driver is alerted by this symbol
in the driver display, combined
with an acoustic signal and the
Time to take a
text message
break .
If the car is equipped with Sensus Navigation*
Rest Stop Guidance
and has the
vated, suggestions for a suitable place for a
break are also shown (see section "Select rest
stop guidance in the event of a warning from
Driver Alert Control").
The warning is repeated after a time if driving
behaviour has not improved.
WARNING
The Driver Alert Control function is sup-
•
plementary driver support intended to
facilitate driving and make it safer – it
cannot handle all situations in all traffic,
weather and road conditions.
Driver Alert Control should not be used to
•
extend a period of driving. The driver
should instead plan for breaks at regular
intervals and make sure they are well
rested.
Driver Alert Control is not a substitute for
•
the driver's attention and judgement. The
driver is always responsible for ensuring
the car is driven in a safe manner, at the
appropriate speed, with an appropriate
distance to other vehicles, and in accord-
ance with current traffic rules and regula-
tions.
function acti-
DRIVER SUPPORT
WARNING
An alarm from Driver Alert Control should be
taken very seriously, as a sleepy driver is often
not aware of his/her own condition.
If the alarm sounds or you feel fatigued:
Stop the car safely as soon as possible
•
and rest.
Studies have shown that it is just as danger-
ous to drive while tired as it is to drive under
the influence of alcohol or other stimulants.
Related information
Activate/deactivate Driver Alert Control
•
(p. 384)
Select rest stop guidance in the event of a
•
warning from Driver Alert Control (p. 384)
Limitations of Driver Alert Control (p. 384)
•
383
* Option/accessory.