2018 VOLVO XC90 T8 traction control

YOUR VOLVO
39
Driver distraction
A driver has a responsibility to do everything possible to ensure his or her own safety and thesafety of passengers in the vehicle and otherssharing the roadway. Part of this responsibility isavoiding distractions, including performing activi-ties that are not directly related to controlling thevehicle in the driving environment.
Your new Volvo is, or can be, equipped with fea- ture-rich entertainment and communication sys-tems. These include hands-free cellular tele-phones, navigation systems, and multipurposeaudio systems. You may also own other portableelectronic devices for your own convenience.When used properly and safely, they enrich thedriving experience. Improperly used, any of thesecould cause a distraction. For all of these systems, we want to provide the following warning that reflects the strong Volvoconcern for your safety. Never use these devicesor any feature of your vehicle in a way that dis-tracts you from the task of driving safely. Distrac-tion can lead to a serious accident. In addition tothis general warning, we offer the following guid-ance regarding specific new features that may befound in your vehicle:
WARNING
• Never use a hand-held cellular telephone while driving. Some jurisdictions prohibitcellular telephone use by a driver whilethe vehicle is moving.
• If your vehicle is equipped with a naviga-tion system, set and make changes toyour travel itinerary only with the vehicleparked.
• Never program your audio system whilethe vehicle is moving. Program radio pre-sets with the vehicle parked, and use yourprogrammed presets to make radio usequicker and simpler.
• Never use portable computers or per-sonal digital assistants while the vehicleis moving.
Related information
•Audio, media and Internet (p. 486)

DISPLAYS AND VOICE CONTROL
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* Option/accessory.115
Activating and deactivating thecenter display
The center display can be dimmed and reactiva- ted using the home button under the screen.
Center display's home button.
When the home button is used, the screen will go dark and the touchscreen no longer reacts totouch. The climate bar will remain visible. All func-tions connected to the screen continue to oper- ate, such as climate, audio, guiding * and apps.
The center display screen can be cleaned when the display is dimmed. The dimming function can also be used to darken the screen so it is not adistraction while driving. 1. Press and hold the button beneath the
screen.
> The screen will go dark (the climate barwill remain visible). All functions con- nected to the screen continue to operate.
2. To reactivate the screen, briefly press the Home button.
> The view that was displayed before thescreen was turned off will be displayed again.
NOTE
The screen cannot be turned off when a prompt to perform an action is being dis-played on the screen.
NOTE
The center display is turned off automatically when the engine is off and the driver's door isopened.
Related information
• Cleaning the center display (p. 633)
• Changing the appearance of the center dis- play (p. 131)
• Center display overview (p. 109)
Navigating in the center display'sviews
There are five different basic views in the center display: Home view, Top view, Climate view, Appview and Function view. The screen is automati-cally activated when the driver's door is opened.
Home viewHome view is the view displayed when the screen is activated. It consists of four tiles: Navigation,Media, Phone and a fourth tile.
An app or vehicle function selected from the App or Function views will start in the respective tile in Home view. For example,
FM radio will start in
the Media tile.
The fourth tile contains the most recently used app or vehicle function that is not related to theother three tiles. The tiles display brief information about the respective apps.
NOTE
When the vehicle is started, information on the current status of apps will be displayed inthe respective tile in Home view.

DISPLAYS AND VOICE CONTROL
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* Option/accessory.145
Lowering position
Confirm
The brightness of the graphic is automatically adapted to the light conditions in its background.Brightness is also affected by adjustments to thebrightness of the other displays in the vehicle. The height position can be stored in the front power seat's * memory function.
Calibrating the horizontal positionIf the windshield or display unit has been replaced, the head-up display's horizontal posi-tion may need to be calibrated. Calibration meansthat the projected image is rotated clockwise orcounterclockwise. 1.
Tap
Settings in the center display's Top
view.
2. Select
My CarDisplaysHead-Up
Display Options
Head-Up Display
Calibration.
3. Calibrate the horizontal position of the image using the right-side steering wheel keypad.
Rotate counterclockwise
Rotate clockwise
Confirm
Related information
• Head-up display
* (p. 142)
• Activating and deactivating the head-up dis- play
* (p. 144)
Voice control14
The driver can use voice commands to control certain functions in the media player, aBluetooth-connected phone, the climate system and the Volvo navigation system *.
Voice commands offer extra convenience and help minimize distractions so drivers can concen-trate on driving and keep their attention on theroad and traffic situation.
WARNING
The driver is always responsible for ensuring that the vehicle is operated in a safe mannerand that all applicable traffic regulations arefollowed.
Voice control microphone
14
Certain markets only.

DRIVER SUPPORT
* Option/accessory.
274
Electronic Stability Control
The Electronic Stability Control (ESC 2
) function
helps the driver avoid skidding and improves the vehicle's directional stability.
This symbol will be displayed in the instrument panel when theESC system is intervening. When the ESC has intervened to apply the brakes, a pulsingsound may be heard and the
vehicle may accelerate more slowly than expec-ted when the accelerator pedal is depressed.
The ESC system consists of the following sub- functions: • Stability control 3
• Spin control and active yaw control
• Engine drag control
• Trailer Stability Assist
WARNING
•The Electronic Stability Control system ESC is supplementary driver supportintended to facilitate driving and make itsafer – it cannot handle all situations inall traffic, weather and road conditions.
• ESC is not a substitute for the driver'sattention and judgment. The driver isalways responsible for ensuring the vehi-cle is driven in a safe manner, at theappropriate speed, with an appropriatedistance to other vehicles, and in accord-ance with current traffic rules and regula-tions.
Stability control 3This function helps control the driving and brak-ing force of each individual wheel in an attemptto stabilize the vehicle.
Spin control and active yaw controlThis function is active at low speeds and brakesthe wheels that are spinning to transfer additionalpower from wheels that are not spinning. This function also helps prevent the wheels from spinning while the vehicle is accelerating.
Engine drag control
Engine drag control (EDC
4
) helps prevent inad-
vertent wheel lock, e.g. after downshifting orusing engine braking when driving at low speedson a slippery surface. Inadvertent wheel lock while driving could impair the driver's ability to steer the vehicle.
Trailer Stability Assist *5
Trailer Stability Assist (TSA
6
) is designed to help
stabilize a vehicle that is towing a trailer if thevehicle and trailer have begun to sway. For moreinformation, see "Trailer Stability Assist".
NOTE
The TSA function is deactivated if ESC Sport
Mode is activated.
Related information
• Electronic Stability Control Sport mode (p. 275)
• Activating/deactivating Sport mode in Elec-tronic Stability Control (p. 275)
1
Roll Stability Control
2 Electronic Stability Control
3 Also called traction control.
4 Engine Drag Control
5Trailer Stability Assist is included if the vehicle is equipped with a Volvo original towbar.6
Trailer Stability Assist

DRIVER SUPPORT
275
•
Electronic Stability Control Sport mode limi- tations (p. 276)
• Electronic Stability Control symbols and mes-sages (p. 277)
Electronic Stability Control Sportmode
The ESC 7
system is always activated and can-
not be switched off. However, the driver can select
ESC Sport Mode, which offers more
active driving characteristics.
With the ESC Sport Mode sub-function
selected, intervention from ESC is reduced and more lateral movement is permitted, giving thedriver more control of the vehicle than usual. When
ESC Sport Mode is selected, ESC may
seem to be disabled even though it is often assisting the driver.
NOTE
When the ESC Sport Mode function is
selected, the trailer stabilizer (TSA 8
) is
switched off.
ESC Sport Mode also helps provide maximum
traction if the vehicle gets stuck or is driving on a loose surface such as deep snow or loose sand.
Related information
• Electronic Stability Control (p. 274)
Activating/deactivating Sport modein Electronic Stability Control The ESC 9
system is always activated and can-
not be switched off. However, the driver can select Sport mode, which offers more activedriving characteristics.
Sport mode can be activated/ deactivated in the center dis-play's Function view.
–Tap the ESC Sport Mode button in Func-
tion view.
> Sport mode is activated when the indica- tor light is green, and deactivated when the indicator light is gray.
When
ESC Sport Mode is activated,
this symbol will illuminate with a steady glow in the instrument panel. It willremain on until the driver deactivates
the function or until the engine is turned off. TheESC system will return to normal mode the nexttime the engine is started.
Related information
• Electronic Stability Control (p. 274)
7
Electronic Stability Control
8 Trailer Stability Assist
9 Electronic Stability Control

DRIVER SUPPORT
289
Cruise Control Eco Cruise
In the ECO drive mode, cruise control's accelera- tion and deceleration will be smoother than inother drive modes to help provide optimal fuelefficiency and reduced environmental impact.Because of this, the vehicle's actual speed maybe slightly above or below the set speed.
Cruise Control Dynamic Cruise
With the Dynamic drive mode, cruise control's acceleration and deceleration will be faster andmore immediate than in other drive modes.
Related information
•Cruise control (p. 286)
Deactivating and putting CruiseControl in standby mode
Cruise Control (CC 31
) can be temporarily put
into standby mode and then reactivated.
Deactivating and putting Cruise Control in standby mode
Note: This illustration is general and details may vary depending on model.
To put Cruise Control in standby mode:
–Press the button on the steering wheel
(2).
> The Cruise Control markings and symbols will change from WHITE to GRAY, indicat- ing that Cruise Control is temporarilydeactivated and the driver needs to con-trol the vehicle's speed.
Standby mode due to action by the driver
Cruise Control will be temporarily deactivated and put in standby mode if:
• the brakes are applied
• the gear selector is moved to
N
• the vehicle is driven faster than the setspeed for more than 1 minute
The driver must then control the vehicle's speed. Temporarily increasing speed using the accelera- tor pedal, e.g. when passing another vehicle, willnot affect the setting. The vehicle will return tothe set speed when the accelerator pedal isreleased.
Automatic standby mode
Cruise Control will be temporarily deactivated and put in 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's speed.
Related information
• Cruise control (p. 286)
31
Cruise Control

DRIVER SUPPORT
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303
To temporarily deactivate Adaptive Cruise Control and put it in standby mode:
–Press the button on the steering wheel
(2). > The
symbol in the instrument panel
changes color from WHITE to GRAY and the set speed in the center of the speed-ometer will change from BEIGE to GRAY.
WARNING
• If Adaptive Cruise Control is in standby mode, the driver must intervene and regu-late both speed and distance to the vehicleahead.
• If the vehicle comes too close to a vehicleahead when Adaptive Cruise Control is instandby mode, the driver is instead warnedof the short distance by the Distance Alertfunction.
Standby mode due to action by the driver
Adaptive Cruise Control will be temporarily deac- tivated and put in standby mode if:
• the brakes are applied.
• the gear selector is moved to
N
• the vehicle is driven faster than the setspeed for more than 1 minute Temporarily increasing speed using the accelera-
tor pedal, e.g. when passing another vehicle, willnot affect the setting. The vehicle will return tothe set speed when the accelerator pedal isreleased.
Automatic standby mode
Adaptive Cruise Control is dependent on other systems, such as Electronic Stability Control (ESC 50
). If any of these other systems stops
working, Adaptive Cruise Control will automati- cally switch off.
WARNING
With automatic standby mode, the driver is warned by an acoustic signal and a messageon the instrument panel. • The driver must then regulate vehicle speed, apply the brakes if necessary, andmaintain a safe distance to other vehicles.
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 is anotherobject, e.g. a speed bump.
• your vehicle's speed goes under 5 km/h(3 mph) and the vehicle ahead turns so thatACC 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 by snowor heavy rain (the camera lens/radar wavesare blocked)
Reactivating Adaptive Cruise Control
from standby mode
Note: This illustration is general and details may vary depending on model.
50 Electronic Stability Control

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DRIVER SUPPORT
320
Automatic standby mode
Pilot Assist is dependent on other systems, such as Electronic Stability Control (ESC66
). If any of
these other systems stops working, Pilot Assist will automatically switch off.
WARNING
With automatic standby mode, the driver is warned by an acoustic signal and a messageon the instrument panel. • The driver must then regulate vehicle speed, apply the brakes if necessary, andmaintain a safe distance to other vehicles.
Adaptive Cruise Control may go into standbymode if, e.g.: • the driver opens the door.
• the brake temperature is high.
• the driver's hands are not on the steering wheel.
• the parking brake is applied.
• the engine speed (rpm) is too low/high.
• the driver unbuckles the seat belt.
• one or more of the wheels lose traction.
• the camera/radar sensor is covered by snowor heavy rain (the camera lens/radar wavesare blocked) •
your vehicle's speed goes below 5 km/h(3 mph) and Pilot Assist cannot determine ifthe vehicle 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 so thatPilot Assist no longer has a vehicle to follow.Reactivating Pilot Assist from standby
mode
Note: This illustration is general and details may vary depending on model.
To reactivate Pilot Assist:
–Press the button on the steering wheel
(1).
> Speed will be set to the most recently stored speed.
WARNING
A noticeable increase in speed may follow when the speed is resumed with the
steering wheel button.
Related information
• Pilot Assist (p. 311)
66
Electronic Stability Control