Volvo S80 Owner's Manual page 165

04 Comfort and driving pleasure
Adaptive cruise control*
In bends the radar sensor may detect the
wrong vehicle or lose a detected vehicle
from view.
Fault tracing and action
If the display shows the message
blocked See manual
this means that the
Cause
The radar surface in the grille is dirty or covered with ice or snow.
04
Heavy rain or snow blocking the radar signals.
Water or snow from the road surface swirls up and blocks the radar sig-
nals.
The radar surface has been cleaned but the message remains.
Symbols and messages in the display
Symbol Message
*
164
Option/accessory, for more information, see Introduction.
radar signals from the radar sensor are blocked
and that vehicles in front of the car could not
be detected.
In turn this means that the Adaptive Cruise
Control, Distance Alert and Collision Warning
Radar
Specification
Standby mode or active mode without detected vehicle.
Active mode with detected vehicle to which cruise control adapts the speed.
Set time interval, during adjustment.
with Auto Brake functions are not operating
either.
The table presents possible causes for a mes-
sage being shown along with the appropriate
action.
Action
Clean the radar surface in the grille from dirt, ice and snow.
No action. Sometimes the radar does not work during heavy rain or
snowfall.
No action. Sometimes the radar does not work on a very wet or snowy
road surface.
Wait. It could take several minutes for the radar to sense that it is no
longer blocked.