DRIVER SUPPORT
Strong oncoming light, reflections in the carriage-
way, snow or ice on the road surface, dirty road
surfaces or unclear lane markings could also sig-
nificantly reduce camera sensor function when it
is used to scan the carriageway and detect
pedestrians and other vehicles.
The following table presents possible causes for
a message being shown along with the appropri-
ate action.
Collision warning system* - camera
sensor limitations
The function uses the car's camera sensor,
which has certain limitations.
Cause
Action
The car’s camera sensor is also used - as well as
by Collision Warning with Auto Brake - by the
functions:
The windscreen sur-
face in front of the
Clean the windscreen
surface in front of the
The field of vision of the camera sensor is limited,
which is why pedestrians, cyclists and vehicles
cannot be detected in some situations, or they
are detected later than anticipated.
camera is dirty or cov- camera from dirt, ice
ered with ice or snow. and snow.
Active main beam (p. 92)
•
•
•
•
Road sign information (p. 242)
Driver Alert Control - DAC (p. 246)
Lane Keeping Aid (p. 249).
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.
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.
NOTE
The windscreen sur-
face in front of the
camera has been
Wait. It may take sev-
eral minutes for the
camera to measure
Fault tracing and action
Keep the windscreen surface in front of the
camera sensor free from ice, snow, mist and
dirt.
If the display shows the message 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.
cleaned but the mes- the visibility.
sage remains.
Do not stick or attach anything to the wind-
screen in front of the camera sensor as this
may reduce effectiveness or cause one or
more of the systems dependent on the cam-
era to stop working.
Dirt has appeared
Visit a workshop to
between the inside of have the windscreen
At the same time, this means that - besides Colli-
sion Warning with Auto Brake - the following
functions will not have full functionality either:
the windscreen and
the camera.
inside the camera
cover cleaned - an
authorised Volvo
workshop is recom-
mended.
Active main beam
Driver Alert Control
Lane Keeping Aid
Road sign information
•
•
•
•
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 exam-
ple. Under such conditions the functions of cam-
era-dependent systems could be significantly
reduced or temporarily disengaged.
Related information
Collision warning system* (p. 227)
•
234
* Option/accessory.
English 
