Limitations Of Driver Alert Control - Volvo S90 Owner's Manual

DRIVER SUPPORT
||
2. Press
My Car IntelliSafe
Control.
3. Select Rest Stop Guidance
deactivate the rest place guide.
Related information
•
Driver Alert Control (p. 348)
•
Limitations of Driver Alert Control (p. 350)
350

Limitations of Driver Alert Control

Driver Alert
The Driver Alert Control (DAC) function may
have limitations in certain situations.
to activate/
In certain cases the driving behaviour may not be
affected, which results in the driver not receiving
any warning from the DAC. For this reason it is
always important to stop and take a break in the
event of any signs of driver fatigue, irrespective of
whether or not DAC issues a warning.
In some cases the system may issue a warning
despite driving ability not deteriorating, for exam-
ple:
•
in strong side winds
•
on rutted road surfaces.
NOTE
The function uses the car's camera unit,
which has some general limitations, see the
"Limitations for camera unit" section.
Related information
•
Driver Alert Control (p. 348)
•
Activate/deactivate Driver Alert Control
(p. 349)
•
Limitations of the camera unit (p. 323)
Lane Keeping Aid
The function of lane assistance is to help the
driver to reduce the risk of the car accidentally
leaving its own lane on motorways and similar
major routes.
Lane assistance steers the car back into its lane
and/or warns the driver with an acoustic signal or
steering wheel vibration.
Lane Keeping Aid is active within the speed
range 65-200 km/h (40-125 mph) on roads with
clearly visible side lines.
On narrow roads the function may be unavailable,
in which case it goes into standby mode. The
function becomes available again when the road
is wide enough.
A camera reads the side lines of the road/lane.