sensor VOLVO S90 TWIN ENGINE 2020 Owner's Guide

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)

DRIVER SUPPORT
* Option/accessory.
268
Driver support systems
The vehicle is equipped with a number of driver support systems that can provide thedriver with active or passive assistance in var-ious situations.
The systems can, for example, help the driver:
maintain a set speed
maintain a set time interval to the vehicle ahead
help prevent a collision by warning thedriver and applying the brakes
park the vehicle.
Some of the systems are standard and othersare options. This also varies from market tomarket.
Related information
IntelliSafe – driver support and safety(p. 29)
Speed-dependent steering wheel resis-tance (p. 268)
Curve Speed Assist (CSA)
* (p. 302)
Electronic Stability Control (p. 269)
Distance Alert
* (p. 273)
Cruise control (p. 275)
Adaptive Cruise Control
* (p. 278)
Pilot Assist
* (p. 287)
Radar sensor (p. 305)
Camera (p. 308)
City Safety
™ (p. 314)
Rear Collision Warning
* (p. 328)
BLIS
* (p. 329)
Cross Traffic Alert
* (p. 333)
Road Sign Information
* (p. 337)
Driver Alert Control (p. 342)
Lane Keeping Aid (p. 344)
Steering assistance at risk of collision(p. 351)
Park Assist
* (p. 357)
Park Assist Camera
* (p. 362)
Park Assist Pilot
* (p. 370)
Speed-dependent steering wheel resistance Speed-dependent power steering increases the steering wheel resistance in pace withthe vehicle's speed, which can help give thedriver an enhanced feeling of control and sta-bility.
Steering is stiffer on highways. When parking and at low speeds, it will be easier to movethe steering wheel.
NOTE
In rare situations, the power steering may become too hot andrequire temporary cooling – dur-ing such time the power steering
will work at reduced output and the steer-ing wheel may feel more difficult to move. The message
Power steering Assistance
temporarily reduced will be displayed
along with this symbol in the instrument panel.
While the power steering is working at reduced power, the driver support func-tions and systems with steering assistanceare not available.

DRIVER SUPPORT
* Option/accessory.
274
Collision risk warning from driver support (p. 296)
Head-up display
* (p. 139)
Activating or deactivating Distance Alert 8
Distance Alert can be turned off. The function is only available in vehicles that can displayinformation on the windshield with a head-up display *.
Activate or deactivate the function using this button inthe center display's Functionview.
GREEN button indicator light – the func- tion is activated.
GRAY button indicator light – the functionis deactivated.
Distance Alert is automatically activated eachtime the engine is started.
Related information
Distance Alert
* (p. 273)
Distance Alert limitations (p. 274)
Distance Alert limitations 9
Distance Alert functionality may be reduced in certain situations. The function is onlyavailable in vehicles that can display informa-tion on the windshield with a head-up dis- play *.
WARNING
Detection ability may be affected by vehicle size, e.g. motorcycles, whichcan cause the warning light to come onat a shorter time interval than that setor cause the warning to be temporarilyabsent.
Very high speeds can cause the light tocome on at a shorter time interval thanthat set due to limitations in the rangeof the radar unit.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Related information

Distance Alert
* (p. 273)
Camera/radar sensor limitations (p. 309)
Head-up display
* (p. 139)
8
Distance Alert
9 Distance Alert

||
DRIVER SUPPORT
* Option/accessory.
278
Automatic standby modeAdaptive Cruise Control may go into standby mode if:
the wheels lose traction
the engine speed (rpm) is too low/high
the temperature in the brake systembecomes too high
the vehicle's speed goes below 30 km/h(20 mph).
The driver must then control the vehicle'sspeed.
Related information
Cruise control (p. 275)
Selecting and activating cruise control(p. 276)
Deactivating cruise control (p. 277)
Adaptive Cruise Control
*15
Adaptive Cruise Control (ACC 16
) helps the
driver maintain a constant speed with a set time interval to the vehicle ahead.
Adaptive Cruise Control can help provide a more relaxed driving experience on long tripson highways or long, straight roads with eventraffic flows.
The camera/radar sensor measures the distance to the vehicle ahead.
The driver sets a speed and a time interval to the vehicle ahead. If the camera/radar sensordetects a slower-moving vehicle ahead, yourvehicle's speed will be automatically adaptedaccording to the set time interval to that vehi-cle. When there are no longer slower-moving vehicles ahead, the vehicle will return to theset speed. If the Curve Speed Assist (CSA)
* function is
activated, it may also affect the vehicle's speed.
WARNING
The function is supplementary driver support intended to facilitate drivingand help make it safer – it cannot han-dle all situations in all traffic, weatherand road conditions.
The driver is advised to read all sec-tions in the Owner's Manual about thisfunction to learn of its limitations,which the driver must be aware ofbefore using the function.
Driver support functions are not a sub-stitute for the driver's attention andjudgment. The driver is always respon-sible for ensuring the vehicle is drivenin a safe manner, at the appropriatespeed, with an appropriate distance toother vehicles, and in accordance withcurrent traffic rules and regulations.
Adaptive Cruise Control regulates speed byaccelerating and braking. It is normal for the
15 Depending on market, this function can be either standard or optional.
16 Adaptive Cruise Control

DRIVER SUPPORT
}}
* Option/accessory.279
brakes to emit a slight sound when they are being used to adjust speed. Adaptive Cruise Control always attempts to regulate speed smoothly. The driver mustapply the brakes in situations requiring imme-diate braking. For example, when there aregreat differences in speed between vehicles orif the vehicle ahead brakes suddenly. Due tolimitations in the radar sensor, braking mayoccur unexpectedly or not at all. Adaptive Cruise Control is designed to follow a vehicle ahead in the same lane and maintaina time interval to that vehicle set by the driver.If the radar sensor does not detect a vehicleahead, it will instead maintain the speed setby the driver. This will also happen if the speedof the vehicle ahead exceeds the set speed foryour vehicle.
CAUTION
Only a workshop may perform mainte- nance on driver support components – anauthorized Volvo workshop is recom-mended.
Related information

Driver support systems (p. 268)
Adaptive Cruise Control
* controls and dis-
play (p. 279)
Selecting and activating Adaptive Cruise Control
* (p. 280)
Adaptive Cruise Control
* limitations
(p. 283)
Symbols and messages for AdaptiveCruise Control
* (p. 285)
Collision risk warning from driver support (p. 296)
Setting time interval to the vehicle ahead(p. 299)
Adjusting set speed for driver support(p. 298)
Auto-hold braking with driver support(p. 300)
Switching target vehicles with driver sup-port (p. 297)
Passing assistance (p. 304)
Adaptive Cruise Control
*17
controls
and display A summary of how Adaptive Cruise Control (ACC 18
) is controlled using the left-side steer-
ing wheel keypad and how the function is shown in the display.
: From standby mode - activates and
sets the current speed
: From active mode - deactivates/
puts in standby mode
: Activates the function from standby
mode and resumes the set speed
: Increases the set speed
: Reduces the set speed
17 Depending on market, this function can be either standard or optional.

DRIVER SUPPORT
}}
* Option/accessory.283
WARNING
With automatic standby mode, the driver is warned by an acoustic signal and a mes-sage on the instrument panel.
The driver must then regulate vehicle speed, apply the brakes if necessary,and maintain a safe distance to othervehicles.
Adaptive Cruise Control may go into standbymode if: your vehicle's speed goes below 5 km/h(3 mph) and ACC cannot determine if thevehicle ahead is stationary or if it isanother object, e.g. a speed bump.
your vehicle's speed goes under 5 km/h(3 mph) and the vehicle ahead turns sothat ACC no longer has a vehicle to follow.
the driver opens the door.
the driver unbuckles the seat belt.
the engine speed (rpm) is too low/high.
one or more of the wheels lose traction.
the brake temperature is high.
the parking brake is applied.
the camera/radar sensor is covered bysnow or heavy rain (the camera lens/radarwaves are blocked).
Related information

Adaptive Cruise Control
* (p. 278)
Selecting and activating Adaptive Cruise Control
* (p. 280)
Deactivating Adaptive Cruise Control
*
(p. 281)
Adaptive Cruise Control
* limitations
(p. 283)Adaptive Cruise Control *26
limitations
Adaptive Cruise Control (ACC 27
) may have
limited functionality in certain situations.
Steep roads and/or heavy loadsAdaptive Cruise Control is primarily intended to be driven on flat roads. The function maynot be able to maintain the correct time inter-val to the vehicle ahead when driving downsteep hills. The driver should be extra attentiveand prepared to apply the brakes.
Other limitationsThe Off Road drive mode cannot be selected
if Adaptive Cruise Control is activated.
26 Depending on market, this function can be either standard or optional.
27 Adaptive Cruise Control

||
DRIVER SUPPORT
* Option/accessory.
284
WARNING
This is not a collision avoidance sys- tem. The driver is always responsibleand must intervene if the system failsto detect a vehicle ahead.
The function does not brake for peopleor animals and does not brake for smallvehicles, such as bikes and motorcy-cles. Similarly, it does not brake for lowtrailers, oncoming, slow-moving or sta-tionary vehicles and objects.
Do not use the function in demandingsituations, such as in city traffic, atintersections, on slippery surfaces,with a lot of water or slush on the road,in heavy rain/snow, in poor visibility, onwinding roads, or on on/off ramps.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Related information

Adaptive Cruise Control
* (p. 278)
Camera/radar sensor limitations (p. 309)
Switching between cruise control and Adaptive Cruise Control
*28
in
the center display
When the regular cruise control (CC 29
) is
selected in the instrument panel, you can switch to Adaptive Cruise Control (ACC 30
) in
the center display's Function view.
Activate or deactivate the function using this button inthe center display's Functionview.
GREEN button indicator light – Adaptive Cruise Control is deactivated and the reg-ular cruise control is in standby mode.
GRAY button indicator light – regularcruise control is deactivated and theAdaptive Cruise Control is in standbymode. A symbol in the instrument panel indicateswhich cruise control system is active
Cruise control
(CC) Adaptive Cruise
Control (ACC)
AA
A WHITE symbol: The function is active. GRAY symbol: Standby mode
Related information
Adaptive Cruise Control
* (p. 278)
Cruise control (p. 275)
28
Depending on market, this function can be either standard or optional.
29 Cruise Control
30 Adaptive Cruise Control

||
DRIVER SUPPORT
* Option/accessory.
286
Symbol Message Meaning
The symbol is WHITE. The vehicle is maintaining the stored speed.
Adaptive Cruise Contr. Unavailable
The symbol is GRAY. Adaptive Cruise Control is in standby mode.
Adaptive Cruise Contr. Service required
The symbol is GRAY.The system is not functioning as intended. Contact a workshop
‒ an authorized Volvo work-
shop is recommended.
Windscreen sensor Sensor blocked, see Owner's manualClean the windshield in front of the camera and radar sensors.
A text message can be erased by briefly press- ing the
button in the center of the right-
side steering wheel keypad. If the message persists: Contact a workshop ‒
an authorized Volvo workshop is recom- mended.
Related information
Adaptive Cruise Control
* (p. 278)

DRIVER SUPPORT
}}
* Option/accessory.287
Pilot Assist*34
Pilot Assist can help the driver keep the vehi- cle in the current traffic lane by providingsteering assistance and maintaining an evenspeed and a set time interval to the vehicleahead.
How Pilot Assist worksThe Pilot Assist function is primarily intended for use on highways and other major roadswhere it can help provide a more comfortableand relaxing driving experience.
The camera/radar sensor monitors the distance to the vehicle ahead and detects lane markings.
Camera and radar sensor
Distance monitor
Lane marker line monitors The driver sets the desired speed and distance to the vehicle ahead. Pilot Assist monitors thedistance to the vehicle ahead and the trafficlane's side markers using the camera andradar sensor. The system maintains the settime interval to the vehicle ahead by automati-cally adjusting your vehicle's speed and keepsyour vehicle in its lane by providing steeringassistance. If the Curve Speed Assist (CSA)
* function is
activated, it may also affect the vehicle's speed. Pilot Assist's steering assistance is based on monitoring the direction of the vehicle aheadand the traffic lane's side marker lines. Thedriver can override Pilot Assist's steering rec-ommendations at any time and steer inanother direction, e.g. to change lanes or avoidobstacles on the road. If the camera/radar sensor cannot detect the lane's side marker lines or if Pilot Assist isunable for some other reason to clearly inter-pret the lane, Pilot Assist will temporarilydeactivate steering assistance until it can onceagain interpret the lane markings. However,the speed and distance warnings will remainactive. The driver will be alerted by slightvibrations in the steering wheel that the func-tion has been temporarily deactivated.
WARNING
Pilot Assist is deactivated automatically and resumes working without prior notice.
The color of the steering wheel symbol indicates thecurrent status of steeringassistance: • GREEN indicates that steering assistance is active
• GRAY (as shown in illustration) indicates thatsteering assistance is deactivated.
34 Depending on market, this function can be either standard or optional.