2018 VOLVO XC90 TWIN ENGINE sensor

WINDOWS, GLASS AND MIRRORS
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* Option/accessory. 177
•
Filling washer fluid (p. 650)
• Windshield wipers in the service position
(p. 649)
• Replacing windshield wiper blades (p. 648)
• Changing rear window wipers (p. 647) Heated windshield washer nozzles*
The washer nozzles are heated automatically in
cold weather to prevent the washer fluid from
freezing.
Related information
• Using the rain sensor (p. 177)
• Using the windshield and headlight washers
(p. 179)
• Using automatic rear window wiping when
backing up (p. 181)
• Using the rain sensor's memory function
(p. 178)
• Using the rear window wiper/washer
(p. 180)
• Filling washer fluid (p. 650)
• Windshield wipers in the service position
(p. 649)
• Replacing windshield wiper blades (p. 648)
• Changing rear window wipers (p. 647)
• Using the windshield wipers (p. 176) 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 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 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.

||WINDOWS, GLASS AND MIRRORS
* Option/accessory.
178 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 the
thumb 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 service
position. The rain sensor will reactivate when
service 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. 179)
• Using automatic rear window wiping when
backing up (p. 181)
• Heated windshield washer nozzles* (p. 177)
• Using the rain sensor's memory function
(p. 178)
• Using the rear window wiper/washer
(p. 180)
• Filling washer fluid (p. 650)
• Windshield wipers in the service position
(p. 649)
• Replacing windshield wiper blades (p. 648)
• Changing rear window wipers (p. 647)
• Using the windshield wipers (p. 176) Using the rain sensor's memory
function
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 not
need to be pressed each time the engine is
started:
1.
Tap Settings in the Top view in the center
display.
2.

Tap My Car Wipers
.
3. Select Rain Sensor Memory to activate/
deactivate the memory function.
Related information
• Using the rain sensor (p. 177)
• Using the windshield and headlight washers
(p. 179)
• Using automatic rear window wiping when
backing up (p. 181)
• Heated windshield washer nozzles* (p. 177)
• Using the rear window wiper/washer
(p. 180)
• Filling washer fluid (p. 650)

WINDOWS, GLASS AND MIRRORS
}}
* Option/accessory. 179
•
Windshield wipers in the service position
(p. 649)
• Replacing windshield wiper blades (p. 648)
• Changing rear window wipers (p. 647)
• Using the windshield wipers (p. 176) Using the windshield and headlight
washers
The windshield and headlight washers clean the
windshield and headlights. Use the right-side
steering wheel lever to start the windshield and
headlight 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 interval
when 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 visibility
through it. The headlights are only washed if high
or low beam is on.
Related information
• Using the rain sensor (p. 177)
• Using automatic rear window wiping when
backing up (p. 181)
• Heated windshield washer nozzles* (p. 177)
• Using the rain sensor's memory function
(p. 178)
• Using the rear window wiper/washer
(p. 180)
• Filling washer fluid (p. 650)

WINDOWS, GLASS AND MIRRORS
* Option/accessory.
180 •
Windshield wipers in the service position
(p. 649)
• Replacing windshield wiper blades (p. 648)
• Changing rear window wipers (p. 647)
• Using the windshield wipers (p. 176) Using the rear window wiper/
washer
The rear window wiper/washer cleans the rear
window. Use the right-side steering wheel lever
to 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 motor
wiper 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. 177)
• Using the windshield and headlight washers
(p. 179)
• Using automatic rear window wiping when
backing up (p. 181)
• Heated windshield washer nozzles* (p. 177)
• Using the rain sensor's memory function
(p. 178)
• Filling washer fluid (p. 650)
• Windshield wipers in the service position
(p. 649)
• Replacing windshield wiper blades (p. 648)
• Changing rear window wipers (p. 647)
• Using the windshield wipers (p. 176)

WINDOWS, GLASS AND MIRRORS
* Option/accessory.181
Using automatic rear window wiping
when 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 different
gear is selected.
1. Tap Settings in the Top view in the center
display.
2.

Tap My Car Wipers
.
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. 177)
• Using the windshield and headlight washers
(p. 179)
• Heated windshield washer nozzles* (p. 177)
• Using the rain sensor's memory function
(p. 178)
• Using the rear window wiper/washer
(p. 180)
• Filling washer fluid (p. 650)
• Windshield wipers in the service position
(p. 649)
• Replacing windshield wiper blades (p. 648) •
Changing rear window wipers (p. 647)
• Using the windshield wipers (p. 176)

CLIMATE CONTROL
* Option/accessory.
202 Climate
The vehicle is equipped with electronic climate
control. The climate system cools, heats and
dehumidifies the air in the passenger compart-
ment. All of the climate system functions are controlled
from the center display and the buttons on the
center console.
Certain rear seat functions can also be controlled
from the climate controls* on the rear of the tun-
nel console.
Related information
• Climate zones (p. 202)
• Climate control sensors (p. 202)
• Perceived temperature (p. 203)
• Climate control system voice commands
(p. 203)
• Parking climate (p. 230)
• Air quality (p. 204)
• Air distribution (p. 207)
• Climate system controls (p. 213) Climate zones
The vehicle is divided into climate zones to make
it possible to set different temperatures for dif-
ferent parts of the passenger compartment.
4-zone climate system Climate zones with 4-zone climate system.
In 4-zone climate systems, the passenger com-
partment temperature can be set separately for
the left and right sides of the vehicle, and for the
front and rear seats.
Related information
• Climate (p. 202) Climate control sensors
The climate system has a number of sensors to
help regulate the climate settings in the vehicle.
Location of the sensors Humidity sensor - in the rearview mirror con-
sole.
Ambient temperature sensor - in the right-
side door mirror.
Passenger compartment temperature sensor
- near the buttons in the center console.
Sunlight sensors - on the upper side of the
dashboard.
NOTE
Do not cover or block the sensors with cloth-
ing or other objects.

CLIMATE CONTROL
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* Option/accessory. 203
On vehicles equipped with the Interior Air Quality
System*, there is also an air quality sensor in the
climate system's air intake.
Related information
• Climate (p. 202)
• Interior Air Quality System* (p. 206) Perceived temperature
The climate control system regulates the climate
in the passenger compartment based on per-
ceived temperature, not actual temperature.
The selected passenger compartment tempera-
ture is based on the physical perception of the
current ambient temperature, airflow speed,
humidity, sunlight in the passenger compartment,
etc.
The system has a sunlight sensor that detects
which side of the vehicle the sunlight is shining
on and adjusts the temperature accordingly. This
means that the temperature of the air coming out
of the vents may be different for the left and right
sides, even if the temperature setting is the same
for both sides.
Related information
• Climate (p. 202) Climate control system voice
commands
1
Voice commands can be used for the climate
control system to e.g. change temperature, acti-
vate seat heating* or change blower speed. Tap and say one of the following commands:
• "Climate" - starts a command dialog for cli-
mate controls and provides examples of
commands that can be used.
• "
Set temperature to X degrees" - sets
desired temperature.
• "
Raise temperature"/"Lower
temperature" - raises/lowers the set tem-
perature.
• "Sync temperature" - synchronizes the
temperature for all climate zones in the vehi-
cle with the temperature set for the driver's
side.
• "
Air on feet"/"Air on body" - opens the
desired air vent.
• "
Air on feet off"/"Air on body off" - closes
the desired air vent.
• "Set fan to max"/"Turn off fan" - changes
blower speed to
Max/Off.
• "
Raise fan speed"/"Lower fan speed" -
raises/lowers the set blower speed. 1
Certain markets only.

CLIMATE CONTROL
* Option/accessory.
206 Clean Zone Interior Package*
Clean Zone Interior Package (CZIP) is a series
of modifications that filters even more allergy and
asthma-inducing substances from the passenger
compartment.
CZIP includes the following:
• An enhanced function that starts the blower
when the vehicle is unlocked using the
remote key. The blower will then fill the pas-
senger compartment with fresh air. The func-
tion starts when required and switches off
automatically after a period of time or when
one of the passenger compartment doors is
opened. The amount of time the blower runs
gradually decreases due to reduced need up
until the vehicle is 4 years old.
• The fully automatic Interior Air Quality
System (IAQS).
Related information
•Air quality (p. 204)
• Clean Zone* (p. 205)
• Interior Air Quality System* (p. 206)
• Passenger compartment air filter (p. 207) Interior Air Quality System*
Interior Air Quality System (IAQS) is a fully auto-
matic air quality system that removes gases and
particles to reduce odors and contaminants in
the passenger compartment. IAQS is part of the Clean Zone Interior Package
(CZIP) and removes air contaminants such as
particles, hydrocarbons, nitric oxides and ground-
level ozone.
If the system's air quality sensors detect contami-
nants in the outside air, the air intake closes and
air recirculation is activated.
NOTE To ensure optimal air quality in the passenger
compartment, the air quality sensor should
always be engaged.
Recirculation is limited in cold weather to pre-
vent fogging.
In the event of fogging, use the defroster
functions for the windshield, side windows
and rear window.
Related information
•
Activating and deactivating the air quality
sensor* (p. 207)
• Air quality (p. 204)
• Clean Zone* (p. 205)
• Clean Zone Interior Package* (p. 206) •
Passenger compartment air filter (p. 207)