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DRIVER SUPPORT
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339
Cause Action
Water or snow from the road surface swirls up and blocks the
radar signals or camera view.
No action. Sometimes the unit does not work on a very wet or snow-covered
road surface.
Dirt has appeared between the inside of the windscreen and the
camera and radar unit.
Visit a workshop to have the windscreen inside the unit's cover cleaned - an
authorised Volvo workshop is recommended.
Strong oncoming light No action. The camera unit is reset automatically in more favourable light con-
ditions.
High temperature
At very high temperatures the camera and
radar unit can temporarily be switched off for
about 15 minutes after the engine is started so
as to protect the unit's electronics. The cam-
era and radar unit restarts automatically when
the temperature has fallen sufficiently.
Damaged windscreen
NOTE
If not rectified it can lead to reduced per-
formance for the driver support systems
that use the camera and radar unit. This
may result functions being reduced, being
switched off completely or giving incorrect
function responses.
The following is also applicable so as not to
risk incorrect function for the driver supports
that use the radar unit:
•
If a scratch, crack or stone chip appears
on the windscreen in front of any of the
"windows" for the camera and radar unit
and covers an area of
approx. 0.5 × 3.0 mm (0.02 × 0.12 in.) or
more, a workshop
69
must be contacted so
that the windscreen can be replaced.
•
Volvo recommends not repairing cracks,
scratches or stone chips in the area in
front of the camera and radar unit – the
entire windscreen should be replaced
instead.
•
Before replacing a windscreen, contact a
workshop
69
to verify that the correct
windscreen has been ordered and will be
fitted.
•
The same type of windscreen wipers or
windscreen wipers approved by Volvo
must be fitted when the windscreen is
replaced.
•
When replacing the windscreen, the cam-
era and radar unit must be recalibrated by
a workshop
69
to ensure the functionality
of all the camera and radar-based systems
in the car.
Radar
Vehicle speed
The radar unit's ability to detect a vehicle
ahead is greatly reduced if the speed of the
vehicle ahead is very different to the speed of
your own car.
69
An authorised Volvo workshop is recommended.
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