Volvo S80 Owner's Manual page 154

The collision warning system is active at
speeds above approximately 5 mph (7 km/h).
Limitations
The visual warning signal may be difficult to
see in strong sunlight or when sunglasses are
being worn. For this reason always activate
the audible warning signal in such condi-
tions.
NOTE
The visual warning signal may be temporari-
ly disengaged in the event of high passen-
ger compartment temperature due to
strong sunlight, etc. If this occurs, the audi-
ble warning signal will be used, even if it has
been deactivated in the menu system.
Warnings may not appear if the distance to
the vehicle ahead is very small or if steering
wheel and pedal movements are large, for
example, due to a very active driving style.
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 148.
WARNING
• In certain situations, the system cannot
provide warnings, the warning may be de-
layed, or false warnings may be given if traf-
fic conditions make it impossible for the
radar sensor to detect the vehicle ahead.
• If no warning is given, no brake support
is provided.
• A delayed warning means that brake sup-
port will also be delayed.
The false warnings may be in the form of
both audio and visual signals.
NOTE
The number of false warnings can be limited
by reducing the warning distance. See the
section "Set warning distance."
04 Comfort and driving pleasure
Collision warning system (option)
Operation
Some settings are controlled from the center
console via a menu system. For information
on how the menu system is used, see
page 116.
Button for activating/deactivating the warning
signals
NOTE
The following settings apply to the collision
warning system only and do not affect
brake support.
Activating/deactivating warning signals
The collision warning system's audible and
visual signals can be activated/deactivated
using . The light in the button indicates
that the warning signals are activated.
04
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