Volvo S60 Owner's Manual page 160

04 Driver support
Adaptive cruise control*
Sometimes the radar sensor is late at
detecting vehicles at close distances, e.g.
a vehicle that drives in between the car and
vehicles in front.
Small vehicles, such as motorcycles, or
vehicles not driving in the centre of the lane
can remain undetected.
In bends the radar sensor may detect the
wrong vehicle or lose a detected vehicle
from view.
04
Cause
The radar surface in the grille is dirty or covered with ice or snow.
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
*
158
Option/accessory, for more information, see Introduction.
Fault tracing and action
If the display shows the message
blocked See manual
this means that the
radar signals from the radar sensor are blocked
and that vehicles in front of the car could not
be detected.
This means that in addition to the Adaptive
Cruise Control, Distance Warning and Collision
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.
Specification
Standby mode or active mode without detected vehicle.
Active mode with detected vehicle to which cruise control adapts the speed.
Warning with Auto Brake functions are not
operating either.
Radar
The following table presents possible causes
for a message being shown along with the
appropriate action.