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:
The rain sensor monitors the amount of water on the windshield and automatically
starts the windshield wipers. Rain sensor sensitivity can be adjusted using the
thumb wheel on the right-hand steering wheel lever.
Right-hand steering wheel lever.
Rain sensor button
Thumb wheel, sensitivity/interval
wiper speed
When the rain sensor is activated, the
rain sensor symbol will be displayed
in th..
Driver Alert Control (DAC) functionality may be reduced in certain situations.
In certain situations, the system may provide a warning even if it has not detected
a change in driving behavior, e.g.:
in strong crosswinds
on grooved road surfaces.
WARNING
In certain cases, driving behavior might not be affected despite the driver's
fatigue – when using the Pilot Assist* function – resultin..