Limitations Of The Radar Unit - Volvo XC 90 Owner's Manual

DRIVER SUPPORT

Limitations of the radar unit

The radar unit has certain limitations - which in
turn also limits those functions that use the unit.
Blocked unit
The marked area must be kept free from stickers,
objects etc.
Cause
The windscreen surface in front of the camera and radar unit is dirty or cov-
ered with ice or snow.
Thick fog and heavy rain or snow block the radar signals or the camera
view.
Water or snow from the road surface swirls up and blocks the radar signals
or camera view.
Dirt has appeared between the inside of the windscreen and the camera
and radar unit.
288
The radar unit is placed inside the upper section
of the windscreen together with the car's camera
unit.
IMPORTANT
Do not place, stick or mount anything on the
outside or inside of the windscreen in front of
or around the camera and radar unit — this
can interfere with camera and radar-depend-
ent functions.
If the driver display shows this symbol
with the message Windscreen
sensor Sensor blocked, see
Owner's manual
, it means that the
camera and radar unit cannot detect other vehi-
cles in front of the car.
Action
Clean dirt, ice and snow from the windscreen surface in front of the camera
and radar unit.
No action. Sometimes the unit does not work during heavy rain or snowfall.
No action. Sometimes the unit does not work on a very wet or snow-covered
road surface.
Visit a workshop to have the windscreen inside the unit's cover cleaned - an
authorised Volvo workshop is recommended.
The following table presents examples of possi-
ble causes for a message being shown, along
with the appropriate action: