Volvo 2011 S80, Owner'S Manual

Page: 182 / 320

04 Comfort and driving pleasure
Collision Warning & Pedestrian Detection with Auto Brake*
04
182 *
Option/accessory, for more information, see Introduction.
Detection of pedestrians (Pedestrian
detection)
Optimal examples of what the system regards as
pedestrians with clear body contours.
Optimal performance of the system requires
that the system function that detects pedes-
trians receives as unambiguous information as
possible about the contours of the body - this
implies the opportunity to identify the head,
arms, shoulders, legs, upper and lower body
combined with a normal human pattern of
movement.
If large parts of the body are not visible to the
camera then the system cannot detect a
pedestrian.
•
In order for a pedestrian to be detected he/
she must appear full-length and have a
height of at least 80 cm.
•
The system cannot detect a pedestrian
carrying larger items.
•
The camera sensor's ability to see pedes-
trians at dusk and dawn is limited - just like
the human eye.
•
The camera sensor's capacity to detect
pedestrians is deactivated when driving in
darkness and tunnels - even when street-
lights are lit.
WARNING
Collision Warning with Auto Brake is an
assistance tool.
It cannot detect all pedestrians in all situa-
tions and it cannot see e.g. partially
obscured pedestrians, shorter people or
children (below 80 cm) or people in clothing
that hides the contours of the body.
•
The driver is always responsible that the
vehicle is driven properly and with a
safety distance adapted to the speed.
Fault tracing and action
If the display shows the message Windscreen
Sensors blocked then this means that the
camera sensor is blocked and cannot detect
pedestrians, vehicles or road markings in front
of the car.
In turn this means that the Collision Warning
with Auto Brake, Lane Departure Warning and
Driver Alert Control functions are not operating
with full functionality.
The following table presents possible causes
for a message being shown along with the
appropriate action.
Cause Action
The windscreen sur-
face in front of the
camera is dirty or
covered with ice or
snow. Clean the wind-
screen surface in
front of the camera
from dirt, ice and
snow.
Thick fog, heavy rain
or snow means that
the camera does not
work sufficiently
well. No action. At times
the camera does not
work during heavy
rain or snowfall.