2018 VOLVO XC90 sensor

LIGHTING
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* Option/accessory.159
Active high beam
Active high beams is a function that uses cam- era sensors in the upper edge of the windshieldto detect the headlights of approaching vehiclesor the taillights of the vehicle directly ahead.When either of these is detected, the vehicle'sheadlights will automatically switch from highbeams to low beams.
Active high beam is enabled by moving the lighting ring on the steering wheel lever to
.
The function can also detect street lighting. When the camera sensor no longer detects anapproaching vehicle or a vehicle ahead, the head-lights will return to high beams. This function can be used in dark conditionswhen the vehicle's speed is approx. 20 km/h(approx. 12 mph) or higher. If active high beams are deactivated when the high beams are on, the headlights will automati-cally switch to low beams. When active high beams are activated, a white
symbol will be displayed in the instrument
panel. When high beams are on, the symbol will be blue. For LED headlights, this applies even if the highbeams are partially dimmed, i.e. if the headlightsare illuminated with slightly more than low beams.
Vehicles with halogen headlights
When the camera sensor no longer detects the headlights of approaching vehicles or the tail-lights of a vehicle ahead, the headlights willreturn to high beams after a second or so.
Vehicles with LED3 headlights *
If the active high beams are equipped with the auto on/off function 4
, the headlights will return to
high beams a second or so after the camera sen- sor no longer detects the headlights of approach-ing vehicles or the taillights of a vehicle ahead.
Limitations for active high beams
The camera sensor on which the function is based has limitations. If this symbol and the message
Active
High Beam Temporarily
unavailable is displayed in the instru-
ment panel, switching between high
and low beams must be done manually. The light- ing ring on the steering wheel lever can remain in the
position. The symbol will go out
when the message is displayed.
The same applies if this symbol along with the message Windscreen
sensor Sensor blocked, see
Owner's manual is displayed.
Active high beams may be temporarily unavailable in certain situations, e.g. heavy fog or rain. Whenactive high beams become available again, or thewindshield sensors are no longer blocked, the message will disappear and the
symbol will
be displayed.
WARNING
Automatic high beam is an aid in using the best possible light based on prevailing condi-tions. The driver is always responsible for manually switching between high and low beam whentraffic situations or weather conditions requirethis.
3 LED (Light Emitting Diode)4
Depends on the vehicle's equipment level.

WINDOWS, GLASS AND MIRRORS
* Option/accessory.
174 •
Storing memory settings in power front seats
* (p. 190)
• Activating and deactivating the heated rear window and door mirrors (p. 227)
Adjusting the rearview mirrordimming function
Bright light entering the vehicle from behind, e.g. from the headlights of following vehicles, couldreflect in the rearview mirror and door mirrorsand cause a glare. Use the dimming functionwhen light from behind is distracting.
Auto-dimIf bright light enters the vehicle from behind, the door mirrors will automatically dim. Auto-dim isalways active when the engine is running, exceptwhen reverse gear is engaged.
NOTE
When the level of sensitivity is changed, this change will not be noticeable immediately butwill instead take effect after a short period oftime.
The sensitivity level for dimming will affect both the rearview mirror and door mirrors. 1. Tap
Settings in the Top view in the center
display.
2. Tap
My CarMirrors and Convenience.
3. Under
Rearview Mirror Auto Dimming,
select Normal, Dark or Light.
The rearview mirror instead has two sensors - one pointing forward and one pointing rearward -which work together to identify and eliminate glare. The forward-pointing sensor monitorsambient light, while the rearward-pointing sensormonitors light from the headlights of followingvehicles. For the door mirrors to be equipped with auto- dim, the rearview mirror must also be equippedwith auto-dim.
NOTE
If the sensors are obstructed by e.g. a parking permit, transponder, sunshade or objects onthe seats or in the cargo compartment in away that prevents light from reaching the sen-sors, the auto-dim function in the door andrearview mirrors will be reduced.
Related information
•
Rearview/door mirrors (p. 173)
• Adjusting the door mirrors (p. 175)

WINDOWS, GLASS AND MIRRORS
* Option/accessory.
180 •
Locking and unlocking using the remote key (p. 239)
• Locking and unlocking from inside the vehi-cle (p. 255)
Using the windshield wipers
The windshield wipers clean the windshield. The right-side steering wheel lever is used to adjustwindshield wiper settings.
Right-hand steering wheel lever.
Thumb wheel, used to set rain sensor sensi- tivity and interval wiper speed.
Single sweepMove the lever down and release for asingle sweep.
Wipers offMove the lever to position 0 to turn off
the windshield wipers.
Interval wipersSet the number of sweeps per time unit with the thumb wheel when interval wip-
ers are selected.
Continuous wipersMove the lever upward for the wipers to operate at normal speed.
Move the lever upward again for the wip- ers to operate at high speed.
CAUTION
Before activating the wipers, make sure that the wiper blades are not frozen in place andthat any snow or ice on the windshield andrear window has been scraped away.
CAUTION
Use plenty of washer fluid when the wipers clean the windshield. The windshield must bewet when the windshield wipers are working.
Related information
• Using the rain sensor (p. 181)
• Using the windshield and headlight washers (p. 183)
• Using automatic rear window wiping whenbacking up (p. 185)
• Heated windshield washer nozzles
* (p. 181)
• Using the rain sensor's memory function(p. 182)
• Using the rear window wiper/washer(p. 184)

WINDOWS, GLASS AND MIRRORS
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* Option/accessory.181
•
Filling washer fluid (p. 632)
• Windshield wipers in the service position (p. 631)
• Replacing windshield wiper blades (p. 630)
• Changing rear window wipers (p. 629)
Heated windshield washer nozzles
*
The washer nozzles are heated automatically in cold weather to prevent the washer fluid fromfreezing.
Related information
• Using the rain sensor (p. 181)
• Using the windshield and headlight washers (p. 183)
• Using automatic rear window wiping whenbacking up (p. 185)
• Using the rain sensor's memory function(p. 182)
• Using the rear window wiper/washer(p. 184)
• Filling washer fluid (p. 632)
• Windshield wipers in the service position(p. 631)
• Replacing windshield wiper blades (p. 630)
• Changing rear window wipers (p. 629)
• Using the windshield wipers (p. 180)
Using the rain sensor The rain sensor monitors the amount of water on the windshield and automatically starts the wind-shield wipers. Rain sensor sensitivity can beadjusted 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 the instrument panel.
Activating the rain sensorWhen the rain sensor is activated, the engine must be running or the ignition must be in mode I
or II. The windshield wiper lever must also be in
position 0 or in the single sweep position.

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WINDOWS, GLASS AND MIRRORS
* Option/accessory.
182 Activate the rain sensor by pressing the rain sen- sor button
.
If the lever is pressed down, the wipers will make additional sweeps across the windshield. Turn the thumb wheel upward for increased sen- sitivity and downward for decreased sensitivity.The wipers will make one extra sweep when thethumb wheel is turned upward.
Deactivate the rain sensor
Deactivate the rain sensor by pressing the rain sensor button or moving the lever upward to another wiper mode. The rain sensor is automatically deactivated in ignition mode 0 or when the engine is switched
off. The rain sensor is also automatically deactivated when the wiper blades are put in the serviceposition. The rain sensor will reactivate whenservice mode is switched off.
CAUTION
The windshield wipers may start inadvertently and be damaged in automatic car washes.Deactivate the rain sensor when the engine is running or when the ignition is in mode I or II.
The symbol in the instrument panel will go out.
Related information
• Using the windshield and headlight washers (p. 183)
• Using automatic rear window wiping whenbacking up (p. 185)
• Heated windshield washer nozzles
* (p. 181)
• Using the rain sensor's memory function(p. 182)
• Using the rear window wiper/washer (p. 184)
• Filling washer fluid (p. 632)
• Windshield wipers in the service position (p. 631)
• Replacing windshield wiper blades (p. 630)
• Changing rear window wipers (p. 629)
• Using the windshield wipers (p. 180)
Using the rain sensor's memoryfunction The rain sensor monitors the amount of water on the windshield and automatically starts the wind-shield wipers.
Activating/deactivating memory function
The rain sensor's memory function can be set to activate so that the rain sensor button does notneed to be pressed each time the engine isstarted: 1.
Tap
Settings in the Top view in the center
display.
2. Tap
My CarWipers.
3. Select
Rain Sensor Memory to activate/
deactivate the memory function.
Related information
• Using the rain sensor (p. 181)
• Using the windshield and headlight washers (p. 183)
• Using automatic rear window wiping whenbacking up (p. 185)
• Heated windshield washer nozzles
* (p. 181)
• Using the rear window wiper/washer(p. 184)
• Filling washer fluid (p. 632)

WINDOWS, GLASS AND MIRRORS
}}
* Option/accessory.183
•
Windshield wipers in the service position (p. 631)
• Replacing windshield wiper blades (p. 630)
• Changing rear window wipers (p. 629)
• Using the windshield wipers (p. 180)
Using the windshield and headlightwashers
The windshield and headlight washers clean the windshield and headlights. Use the right-sidesteering wheel lever to start the windshield andheadlight washers.
Starting the windshield and headlight washers
Washing function, right-hand steering wheel lever.
–Move the right-hand steering wheel lever toward the steering wheel to start the wind-shield and headlight washers.
> After the lever is released, the wipers make several extra sweeps.
CAUTION
Avoid activating the washer system when it is frozen or the fluid reservoir is empty. Other-wise, there is a risk of damaging the pump.
Headlight washer *To save washer fluid, the headlights are washed automatically according to a defined intervalwhen the headlights are on.
Reduced washingWhen there is about 1 liter (1 qt) of washer fluid left in the reservoir and the Washer fluid Level
low, refill message is displayed in the instrument
panel together with the
symbol, the washer
fluid supply to the headlights is cut off. This is to prioritize windshield cleaning and visibilitythrough it. The headlights are only washed if highor low beam is on.
Related information
• Using the rain sensor (p. 181)
• Using automatic rear window wiping whenbacking up (p. 185)
• Heated windshield washer nozzles
* (p. 181)
• Using the rain sensor's memory function(p. 182)
• Using the rear window wiper/washer(p. 184)
• Filling washer fluid (p. 632)

WINDOWS, GLASS AND MIRRORS
* Option/accessory.
184 •
Windshield wipers in the service position (p. 631)
• Replacing windshield wiper blades (p. 630)
• Changing rear window wipers (p. 629)
• Using the windshield wipers (p. 180)
Using the rear window wiper/washer
The rear window wiper/washer cleans the rear window. Use the right-side steering wheel leverto start and control the wiper/washer.
Activating the rear window wiper/ washer
NOTE
The rear window wiper is equipped with over- heating protection that switches off the motorwiper if it becomes overheated. The rear win-dow wiper can be operated again after a cool-ing-down period.
Select for interval rear window wiper.
Select for continuous rear window
wiper.
–Move the right-side steering wheel lever for- ward to wash/wipe the rear window.
Related information
• Using the rain sensor (p. 181)
• Using the windshield and headlight washers(p. 183)
• Using automatic rear window wiping whenbacking up (p. 185)
• Heated windshield washer nozzles
* (p. 181)
• Using the rain sensor's memory function(p. 182)
• Filling washer fluid (p. 632)
• Windshield wipers in the service position(p. 631)
• Replacing windshield wiper blades (p. 630)
• Changing rear window wipers (p. 629)
• Using the windshield wipers (p. 180)

WINDOWS, GLASS AND MIRRORS
* Option/accessory.185
Using automatic rear window wipingwhen backing up
If reverse gear is engaged while the windshield wipers are on, the rear window wipers will start.This function is deactivated when a differentgear is selected.
1. Tap Settings in the Top view in the center
display.
2. Tap
My CarWipers.
3. Select
Auto Rear Wiper to activate/deacti-
vate automatic rear window wiping when backing up.
If the rear window wipers are already in continu-ous wiper mode, no change will be made.
Related information
• Using the rain sensor (p. 181)
• Using the windshield and headlight washers(p. 183)
• Heated windshield washer nozzles
* (p. 181)
• Using the rain sensor's memory function(p. 182)
• Using the rear window wiper/washer(p. 184)
• Filling washer fluid (p. 632)
• Windshield wipers in the service position(p. 631)
• Replacing windshield wiper blades (p. 630) •
Changing rear window wipers (p. 629)
• Using the windshield wipers (p. 180)