Volvo XC90: Driver support / Recommended camera and radar sensor maintenance
In order for the camera and radar units to function properly, they must be
kept free of dirt, ice, snow, etc. and should be washed regularly with water and
car washing detergent.
NOTE
Dirt, ice and snow covering the sensors could cause false warnings, reduced
function, or no function.

Location of the Park Assist sensors

Location of rear radar sensors. Keep the marked area clean
(on both the left and right sides of the vehicle).
- For best possible performance, it is important to keep the areas in front
of the sensors clean.
- Do not attach any objects, tape or decals to the surface of the sensors.
- Clean the camera lenses regularly using lukewarm water and car washing detergent.
Wash gently to avoid scratching the lens.
CAUTION
Only a workshop may perform maintenance on driver support components –
an authorized Volvo workshop is recommended.
The camera and radar sensor used by several of the driver support functions
has certain limitations, which also affect the functions using the camera and radar
sensor...
Here are examples of some of the messages and symbols related to the camera
and radar units that may be displayed in the instrument panel.
Sensor blocked
If this symbol and the message Windscreen sensor Sensor blocked, see
Owner's manual is displayed in the instrument panel, it means that the camera
and radar unit are unable to detect other vehicles, cyclists, pedestrians and large
animals in ..
Other information:
Activating and deactivating
An integrated compass1 in the upper right corner of the rearview
mirror shows the direction the vehicle is traveling.
The compass is automatically activated when the vehicle is started.
To deactivate/activate the compass manually:
Use a paper clip or similar object to press the button on the bottom of
the mirror.
If the compass is deactivated when the vehicle is ..
The parking lights can be used to help other road users see the vehicle if
it is stopped or parked. Use the lighting ring on the steering wheel lever to turn
on the parking lights.
Lighting ring in the parking light position.
Turn the lighting ring to the position
to turn on the parking lights (the license plate lighting will also illuminate).
Canadian models: If the ignition is in the II pos..