Volvo V70 Owner's Manual page 187

On a car with manual gearbox the engine stops
when Auto Brake has stopped the car, unless
the driver manages to depress the clutch pedal
beforehand.
Camera sensor limitations
The car's camera sensor is used by the three
functions - Collision Warning with Auto Brake,
Driver Alert Control, see page 190 and Lane
Departure Warning, see page 193.
NOTE
Keep the windscreen surface in front of the
camera sensor clean from ice, snow, mist
and dirt.
Do not attach or fit anything to the wind-
screen in front of the camera sensor, as this
could reduce or prevent the function of one
or more camera-dependent systems.
The camera sensors have limitations similar to
the human eye, i.e. they "see" worse in dark-
ness, heavy snowfall or rain and in thick fog for
example. Under such conditions the functions
of camera-dependent systems could be sig-
nificantly 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 a camera sensor func-
tion. Functions such as scanning the carriage-
way and detecting other vehicles for example.
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
Sensors blocked then this means that the
camera sensor is blocked and cannot detect
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.
04 Comfort and driving pleasure
Collision Warning with Auto Brake*
Cause
The windscreen sur-
face in front of the
camera is dirty or
covered with ice or
snow.
Thick fog, heavy rain
or snow means that
the camera does not
work sufficiently
well.
Windscreen
The windscreen sur-
face in front of the
camera has been
cleaned but the
message remains.
Dirt has appeared
between the inside
of the windscreen
and the camera.
*
Option/accessory, for more information, see Introduction.
Action
Clean the wind-
screen surface in
front of the camera
from dirt, ice and
snow.
No action. At times
the camera does not
work during heavy
04
rain or snowfall.
Wait. It may take
several minutes for
the camera to meas-
ure the visibility.
Visit a workshop to
have the windscreen
inside the camera
cover cleaned - an
authorised Volvo
workshop is recom-
mended.
``
187