Volvo 2011 S80, Owner'S Manual

Page: 180 / 320

04 Comfort and driving pleasure
Collision Warning & Pedestrian Detection with Auto Brake*
04
180 *
Option/accessory, for more information, see Introduction.
Collision warning settings Collis'n
warn ON Audio --- .
Set warning distance
The warning distance regulates the distance at
which the visual and acoustic warnings are
deployed. Select one of the options from
Long , Normal or Short in the menu system
under Car settings Collision warning
settings Warning distance .
The warning distance determines the system's
sensitivity. Warning distance
Long
provides an
earlier warning. First test with Long and if this
setting produces too many warnings, which
could be perceived as irritating in certain sit-
uations, then change to warning distance
Normal .
Only use warning distance Short in excep-
tional cases, e.g. for dynamic driving.
NOTE
When the adaptive cruise control is in use
the warning lamp and warning sound will be
used by the cruise control even if the colli-
sion warning system is switched off.
The collision warning system warns the
driver in the event of a risk of a collision, but
the function cannot shorten driver reaction
time.
In order for the collision warning system to
be effective, always drive with the Distance
Alert set at time interval 4 – 5. see
page 175.
NOTE
Even if the warning distance has been set to
Long then in certain situations warnings
could be perceived as being late. E.g. in the
event of large differences in speed or if vehi-
cles in front brake heavily.
Checking settings
The settings required can be controlled on the
centre console display. Access via the menu
for
Car settings Collision warning
settings , see page 125.
Limitations
The collision warning system is active from and
including approx. 4 km/h.
The visual warning signal may be difficult to
notice in the event of strong sunlight, reflec-
tions, when sunglasses are being worn or if the
driver is not looking straight ahead. The warn-
ing sound should therefore always be acti-
vated.
On slippery road surfaces the braking distance
is extended, which may reduce the capacity to
avoid a collision. In such situations the ABS
and DSTC systems will provide best possible
braking force with maintained stability.
NOTE
The visual warning signal can be temporarily
disengaged in the event of high passenger
compartment temperature caused by
strong sunlight for example. If this occurs
then the warning sound is activated even if
it is deactivated in the menu system.
•
Warnings may not appear if the dis-
tance to the vehicle in front is small or if
steering wheel and pedal movements
are large, e.g. a very active driving style.