Volvo S80 Owner's Manual page 168

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 table presents possible causes for a mes-
sage being shown along with the appropriate
action.
Symbols and messages in the display
Symbol Message
Collis'n warning OFF
Collision warn. Unavailable
Auto braking was acti-
vated
Cause
Windscreen
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.
Specification
Collision warning system switched off.
Shown when the engine is started.
The message clears after about 5 seconds or after one press of the READ button.
The collision warning system cannot be activated.
Shown when the driver attempts to activate the function.
The message clears after about 5 seconds or after one press of the READ button.
Auto Brake has been active.
04 Comfort and driving pleasure
Collision Warning with Auto Brake*
Action Cause
Clean the wind- The windscreen sur-
screen surface in face in front of the
front of the camera camera has been
from dirt, ice and cleaned but the
snow. message remains.
No action. At times Dirt has appeared
the camera does not between the inside
work during heavy of the windscreen
rain or snowfall. and the camera.
*
Option/accessory, for more information, see Introduction.
Action
Wait. It may take
several minutes for
the camera to meas-
ure the visibility.
Contact an author-
ised Volvo work-
shop to have the
04
windscreen inside
the camera cover
cleaned.
167