Volvo XC90 Owner's Manual page 319

Cause
Water or snow is spraying/swirling up and blocking the radar signals
or the camera's range of visibility.
There is dirt between the inside of the windshield and the camera/
radar sensor.
Bright sunlight.
High temperatures
If the temperature in the passenger compartment
is very high, the camera/radar sensor will switch
off temporarily for approx. 15 minutes after the
engine is started to protect its electronic compo-
nents. When the temperature has cooled suffi-
ciently, the camera/radar sensor will automati-
cally restart.
Damaged windshield
NOTE
Failure to take action could result in reduced
performance for the driver support systems
that use the camera and radar unit. It could
cause functions to be reduced, deactivated
completely or to produce an incorrect func-
tion response.
An authorized Volvo workshop is recommended.
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Action
No action. Very wet or snow-covered roads may sometimes prevent the camera/
radar sensor from functioning.
Consult a workshop to have the area of the windshield on the inside of the camera's
casing cleaned. An authorized Volvo workshop is recommended.
No action. The camera/radar sensor will reset automatically when lighting conditions
improve.
To avoid the risk of loss of function, malfunction
or reduced function of the driver support systems
that use the radar sensor, the following also
apply:
• If there are cracks, scratches or stone chips
on the windshield in front of any of the cam-
era and radar sensor "windows" and this cov-
ers an area of about 0.5 × 3.0 mm
(0.02 × 0.12 in.) or more, contact a workshop
to have the windshield replaced
Volvo advises against repairing cracks,
•
scratches or stone chips in the area in front
of the camera and radar sensor – the entire
windshield should instead be replaced.
• Before replacing the windshield, contact a
46
workshop to verify that the right windshield
has been ordered and installed.
• The same type of windshield wipers or wip-
ers approved by Volvo should be used for
replacement.
• If the windshield is replaced, the camera and
radar sensor must be recalibrated by a work-
46
shop to help ensure proper functioning of
all of the vehicle's camera and radar-based
systems.
Radar
46
.
Vehicle speed
The radar sensor's ability to detect a vehicle
ahead is significantly reduced if the speed of the
vehicle ahead differs greatly from your vehicle's
speed.
DRIVER SUPPORT
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