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07 Driver support
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The camera sensors have limitations similar
to the human eye, i.e. they "see" worse in
darkness, heavy snowfall or rain and in thick
fog for example. Under such conditions the
functions of camera-dependent systems
could be significantly reduced or temporarily
disengaged.
Strong oncoming light, reflections in the car-
riageway, snow or ice on the road surface,
dirty road surfaces or unclear lane markings
could also significantly reduce camera sensor
function when it is used to scan the carriage-
way and detect pedestrians and other vehi-
cles.
The field of vision of the camera sensor is lim-
ited, which is why pedestrians, cyclists and
vehicles cannot be detected in some situa-
tions, or they are detected later than anticipa-
ted.
During very high temperatures the camera is
temporarily switched off for about 15 minutes
after the engine is started in order to protect
camera functionality.
Fault tracing and action
If the display shows the message
07
Windscreen sensors blocked See manual
then this means that the camera sensor is
blocked and cannot detect pedestrians,
cyclists, vehicles or road markings in front of
the car.
*
232
Option/accessory, for more information, see Introduction.
At the same time, this means that - besides
Collision Warning with Auto Brake - the Auto-
matic main/dipped beam dimming, Road Sign
Information, Driver Alert Control and Lane
Keeping Aid functions will not have full func-
tionality either.
The following table presents possible causes
for a message being shown along with the
appropriate action.
Cause
Action
The windscreen
Clean the wind-
surface in front of
screen surface in
the camera is dirty
front of the camera
or covered with ice
from dirt, ice and
or snow.
snow.
Thick fog, heavy
No action. At times
rain or snow means
the camera does
that the camera
not work during
does not work suffi-
heavy rain or snow-
ciently well.
fall.
Cause
Action
The windscreen
Wait. It may take
surface in front of
several minutes for
the camera has
the camera to
been cleaned but
measure the visibil-
the message
ity.
remains.
Dirt has appeared
Visit a workshop to
between the inside
have the wind-
of the windscreen
screen inside the
and the camera.
camera cover
cleaned - an author-
ised Volvo work-
shop is recom-
mended.
Related information
•
Collision warning system* (p. 225)
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