Volvo S80 Owner's Manual page 183

NOTE
Dirt, ice and snow covering the sensors
will reduce their function and may prevent
measurement.
Limitations
Collision Warning with Auto Brake and
Pedestrian Detection is active from
approx. 4 km/h.
The visual warning signal (no. [1] in the illus-
tration on page 177) may be difficult to notice
in the event of strong sunlight, reflections,
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 dis-
tance is extended, which may reduce the
capacity to avoid a collision. In such situa-
tions the ABS and DSTC systems will provide
best possible braking force with maintained
stability.
Collision Warning with Auto Brake & Pedestrian Protection*
NOTE
The visual warning signal can be temporar-
ily disengaged in the event of high passen-
ger 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 move-
ments are large, e.g. a very active driv-
ing style.
04 Driver support
WARNING
Warnings and brake interventions could be
implemented late or not at all if the traffic
situation or external influences mean that
the radar or camera sensor cannot detect
a pedestrian or a vehicle in front correctly.
The sensor system has a limited range for
pedestrians and the system therefore pro-
vides effective warnings and brake inter-
ventions at vehicle speeds up to 50 km/h.
For stationary or slow-moving vehicles,
warnings and brake interventions are
effective at vehicle speeds up to 70 km/h.
Warnings for stationary or slow-moving
vehicles could be disengaged due to dark-
ness or poor visibility.
Warnings and brake interventions for
pedestrians are switched off at vehicle
speeds exceeding 80 km/h.
The collision warning system uses the same
radar sensors as adaptive cruise control. For
more information on the radar sensor and its
limitations, see page 163.
If warnings are perceived as being too fre-
quent or disturbing then the warning distance
can be reduced. This then leads to the sys-
tem providing a warning at a later stage,
which reduces the total number of warnings;
see the section "Set warning distance" on
page 180.
*
Option/accessory, for more information, see Introduction.
04
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