2020 VOLVO S90 TWIN ENGINE sensor

WINDOWS, GLASS AND MIRRORS
* Option/accessory.
178
Wiper blades and washer fluid The wipers and the washer fluid are designed to improve visibility and the headlight pat-tern.
The washer nozzles are heated * automatically
in cold weather to prevent the washer fluid from freezing. When there is approximately 1 liter (1 qt) of washer fluid remaining, a message to refill willappear in the instrument panel.
Related information
Using the rain sensor (p. 179)
Using the windshield and headlight wash-ers (p. 180)
Using the rain sensor's memory function(p. 180)
Filling washer fluid (p. 621)
Putting the wiper blades in service posi-tion (p. 620)
Replacing windshield wiper blades(p. 619)
Using the windshield wipers (p. 178)
Using the windshield wipers
The windshield wipers are designed to clean the windshield. The right-side steering wheellever is used to adjust windshield wiper set-tings.
Right-hand steering wheel lever.
The thumb wheel is used to set rain sen- sor sensitivity 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 wipersMove the lever upward to put the wip- ers in interval wiping mode. Set the
number of sweeps per time unit with thethumb wheel when interval wipers areselected.
Continuous wipersMove the lever upward for the wipers to operate at normal speed.
Move the lever upward again for the wipers to operate at high speed.
CAUTION
Before activating the wipers, make sure that the wiper blades are not frozen inplace and that any snow or ice on thewindshield has been scraped away.
CAUTION
Use plenty of washer fluid when the wipers clean the windshield. The windshield mustbe wet when the windshield wipers areworking.
Related information
Using the rain sensor (p. 179)
Using the windshield and headlight wash- ers (p. 180)
Wiper blades and washer fluid (p. 178)

WINDOWS, GLASS AND MIRRORS
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179

Using the rain sensor's memory function (p. 180)
Filling washer fluid (p. 621)
Putting the wiper blades in service posi-tion (p. 620)
Replacing windshield wiper blades(p. 619)
Using the rain sensor
The rain sensor monitors the amount of water on the windshield and automatically startsthe windshield wipers. Rain sensor sensitivitycan be adjusted using the thumb wheel onthe 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 enginemust be running or the ignition in mode I or II
while the windshield wiper lever is in position0 or in the single sweep position. Activate the rain sensor by pressing the rain sensor button
.
Move the lever downward for an extra wiper sweep. Turn the thumb wheel upward for increased sensitivity and downward for decreased sensi-tivity. The wipers will make one extra sweepwhen the thumb wheel is turned upward.
Deactivate the rain sensorDeactivate 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 deacti- vated when the wiper blades are put in theservice position. The rain sensor will reactivatewhen service mode is switched off.
CAUTION
The windshield wipers may start inadver- tently and be damaged in automatic carwashes. Deactivate the rain sensor whenthe engine is running or when the ignitionis in mode I or II. The symbol in the instru-
ment panel will go out.

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WINDOWS, GLASS AND MIRRORS
180
Related information
Using the windshield and headlight wash- ers (p. 180)
Wiper blades and washer fluid (p. 178)
Using the rain sensor's memory function(p. 180)
Filling washer fluid (p. 621)
Putting the wiper blades in service posi-tion (p. 620)
Replacing windshield wiper blades(p. 619)
Using the windshield wipers (p. 178)
Using the rain sensor's memory function
The rain sensor monitors the amount of water on the windshield and automatically startsthe windshield wipers.
Activating/deactivating memory function
The rain sensor's memory function can be set to activate so that the rain sensor button doesnot need to be pressed each time the engineis started: 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. 179)
Using the windshield and headlight wash- ers (p. 180)
Wiper blades and washer fluid (p. 178)
Filling washer fluid (p. 621)
Putting the wiper blades in service posi-tion (p. 620)
Replacing windshield wiper blades(p. 619)
Using the windshield wipers (p. 178)
Using the windshield and headlight washers The windshield and headlight washers are designed to clean the windshield and head-lights. Use the right-side steering wheel leverto start the windshield and headlight wash-ers.
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 thewindshield and headlight washers.
> After the lever is released, the wipers
make several extra sweeps.

WINDOWS, GLASS AND MIRRORS
* Option/accessory.181
CAUTION
Avoid activating the washer system when it is frozen or the fluid reservoir is empty.Otherwise, there is a risk of damaging thepump.
Headlight washer *To save washer fluid, the headlights are washed automatically according to a definedinterval 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
sym-
bol, the washer fluid supply to the headlights is cut off. This is to prioritize windshield clean-ing and visibility through it. The headlights areonly washed if high or low beam is on.
Related information
Using the rain sensor (p. 179)
Wiper blades and washer fluid (p. 178)
Using the rain sensor's memory function(p. 180)
Filling washer fluid (p. 621)
Putting the wiper blades in service posi-tion (p. 620)
Replacing windshield wiper blades(p. 619)
Using the windshield wipers (p. 178)

CLIMATE CONTROL
* Option/accessory.
198
Climate The vehicle is equipped with electronic cli- mate control. The climate system cools, heatsand dehumidifies the air in the passengercompartment.
All of the climate system functions are con- trolled from the center display and the buttonson the center console. Certain rear seat functions can also be con- trolled from the climate controls * on the rear
of the tunnel console.
Related information
Climate zones (p. 198)
Climate control sensors (p. 198)
Perceived temperature (p. 199)
Climate control system voice commands (p. 199)
Parking climate (p. 224)
Heater (p. 231)
Air quality (p. 200)
Air distribution (p. 203)
Climate system controls (p. 209)
Climate zones The vehicle is divided into climate zones to make it possible to set different temperaturesfor different parts of the passenger compart-ment.
4-zone climate system
Climate zones with 4-zone climate system.
In 4-zone climate systems, the passenger compartment temperature can be set sepa-rately for the left and right sides of the vehicle,and for the front and rear seats.
Related information
Climate (p. 198)
Climate control sensors
The climate system has a number of sensors to help regulate the climate settings in thevehicle.
Location of the sensors
Sunlight sensors - on the upper side of the dashboard.
Humidity sensor - in the rearview mirror console.
Ambient temperature sensor - in the right- side door mirror.
Passenger compartment temperature sen- sor - near the buttons in the center con-sole.

CLIMATE CONTROL
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* Option/accessory.199
NOTE
Do not cover or block the sensors with clothing or other objects.
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. 198)
Interior Air Quality System
* (p. 202)
Perceived temperature
The climate control system regulates the cli- mate in the passenger compartment basedon perceived temperature, not actual tem-perature.
The selected passenger compartment tem- perature is based on the physical perception ofthe current ambient temperature, airflowspeed, humidity, sunlight in the passengercompartment, etc. The system has a sunlight sensor that detects which side of the vehicle the sunlight is shin-ing on and adjusts the temperature accord-ingly. This means that the temperature of theair coming out of the vents may be differentfor the left and right sides, even if the tem-perature setting is the same for both sides.
Related information
Climate (p. 198)
Climate control system voice commands 1
Voice commands can be used for the climate control system to e.g. change temperature, activate seat heating * or change blower
speed.
Tap and say one of the following com-
mands: "
Climate" - starts a command dialog for
climate 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 vehicle with the temperature set for thedriver'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.
202
Interior Air Quality System *
Interior Air Quality System (IAQS) is a fully automatic air quality system that removesgases and particles to reduce odors and con-taminants in the passenger compartment.
IAQS is part of the Clean Zone Interior Package (CZIP) and removes air contaminantssuch as particles, hydrocarbons, nitric oxidesand ground-level ozone. If the system's air quality sensors detect con- taminants in the outside air, the air intakecloses and air recirculation is activated.
NOTE
To ensure optimal air quality in the passen- ger compartment, the air quality sensorshould always be engaged. Recirculation is limited in cold weather to prevent fogging. In the event of fogging, use the defroster functions for the windshield, side windowsand rear window.
Related information
Activating and deactivating the air quality sensor
* (p. 202)
Air quality (p. 200)
Clean Zone
* (p. 201)
Clean Zone Interior Package
* (p. 201)
Passenger compartment air filter (p. 203)
Activating and deactivating the air quality sensor
*
The air quality sensor is part of the fully auto- mated Interior Air Quality System (IAQS).
The air quality sensor can be switched on or off. 1. Tap
Settings in the Top view in the center
display.
2. Tap
Climate.
3. Select
Air Quality Sensor to activate/
deactivate the air quality sensor.
Related information
Interior Air Quality System
* (p. 202)

KEY, LOCKS AND ALARM
* Option/accessory.261
Opening and closing the trunk lid with foot movement *
To make it easier to operate the trunk lid when your hands are full, it can be openedand closed by moving your foot in a forwardkicking motion under the rear bumper.
The sensor is located to the left of center under the rear bumper.
One of the vehicle's remote keys must be within range behind the vehicle, approx. 1meter (3 feet), for opening and closing to bepossible. This applies even if the vehicle isunlocked in order to prevent the trunk lid frominadvertently opening e.g. at a car wash.
Foot movement operation
Kicking motion within the sensor's activation area.
–Make one slow forward kicking motion
with your foot under the left section of the rear bumper. Take a step back. Do nottouch the bumper.
> A brief audible signal will sound when opening or closing is activated - the trunk lid will open/close.
If several opening or closing attempts havebeen made without the remote key in rangebehind the vehicle, foot movement operationwill not be available for a short period of time. Do not keep your foot under the vehicle in a kicking motion. This may prevent activation.
Interrupting foot movement operation
–Make one slow forward kicking motion
while the trunk lid is opening/closing to stop its movement.
> The trunk lid will stop closing and return to its fully open position. The trunk lid can then be opened or closedmanually.
The remote key does not need to be withinrange of the vehicle to interrupt closing.
NOTE
There is a risk of reduced or lost function if there are large amounts of snow, ice, dirt,etc. on the rear bumper. Make sure to keepthe bumper clean.
NOTE
Please note that the system could be inad- vertently activated in a car wash or similarif the remote key is within range.
Related information
Keyless and touch-sensitive surfaces
*
(p. 250)
Opening and closing the power trunk lid
*
(p. 258)
Remote key range (p. 239)