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:
Steering assistance has several sub-functions. Steering assistance during
collision risks from oncoming traffic can help a distracted driver who has not noticed
that the vehicle is veering out of the lane.
The function provides assistance by swerving your vehicle back
into your own lane.
Oncoming vehicles
Own vehicle
When steering assistance is activated, collision warning for driver support..
(Option/accessory.)
Passing assistance can assist the driver when passing other vehicles. The
function can be used with Adaptive Cruise Control* or Pilot Assist*.
When Adaptive Cruise Control or Pilot Assist is following another vehicle and
you indicate that you intend to pass that vehicle by using the turn signal1,
the system will begin accelerating toward the vehicle ahead before your vehicle..