Volvo XC40 Owner's Manual page 287

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 cam-
era/radar sensor.
Bright sunlight.
High temperatures
If the temperature in the passenger compart-
ment is very high, the camera/radar sensor
will switch off temporarily for
approx. 15 minutes after the engine is started
to protect its electronic components. When
the temperature has cooled sufficiently, the
camera/radar sensor will automatically 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 pro-
duce an incorrect function response.
48 An authorized Volvo workshop is recommended.
Action
No action. Very wet or snow-covered roads may sometimes prevent the cam-
era/radar sensor from functioning.
Consult a workshop to have the area of the windshield on the inside of the cam-
era's casing cleaned. An authorized Volvo workshop is recommended.
No action. The camera/radar sensor will reset automatically when lighting con-
ditions improve.
To avoid the risk of malfunction 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 camera and radar sensor "windows"
and this covers an area of
about 0.5 × 3.0 mm (0.02 × 0.12 in.) or
more, contact a workshop to have the
48
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
•
48
workshop to verify that the right wind-
shield has been ordered and installed.
DRIVER SUPPORT
The same type of windshield wipers or
•
wipers approved by Volvo should be used
for replacement.
If the windshield is replaced, the camera
•
and radar sensor must be recalibrated by a
48
workshop to help ensure proper func-
tioning of all of the vehicle's camera and
radar-based systems.
Radar
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.
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