power steering VOLVO XC90 T8 2017 Owner´s Manual

STARTING AND DRIVING
* Option/accessory.
388
Trailer Stability Assist (TSA)
Trailer Stability Assist is a system designed to help stabilize a vehicle that is towing a trailerwhen the vehicle and trailer have begun to swayand is part of the Electronic Stability Control sys-tem.
FunctionA vehicle towing a trailer may begin to sway for various reasons. Normally this only occurs at highspeeds but, for example, if the trailer is overloa-ded or if the load is unevenly distributed in thetrailer, there is risk of swaying. Swaying may be caused by factors such as:
• The vehicle and trailer are hit by a sudden, strong crosswind
• The vehicle and trailer are traveling on anuneven road surface or drive over a bump
• Sudden movements of the steering wheel
Facts about TSA
• The stability system symbol in the instrumentpanel will flash when TSA is working
• If the driver switches off the stability system'sSpin Control function, TSA will also beswitched off (but will be on again the nexttime the engine is started)
• TSA may not intervene when the vehicle andtrailer begin to sway if the driver tries to com-pensate for the swaying motion by movingthe steering wheel rapidly
How TSA worksOnce swaying has begun, it can be very difficultto stop, which makes it difficult to control thevehicle and trailer. The TSA system continuously monitors the vehi- cle's movements, particularly lateral movement. Ifthe system detects a tendency to sway, thebrakes are applied individually on the frontwheels, which has a stabilizing effect on the vehi-cle and trailer. This is often enough to enable thedriver to regain control of the vehicle. If this is not adequate to stop the swaying motion, the brakes are applied to all of the wheels on thevehicle and on the trailer if it is equipped withbrakes, and engine power is temporarily reduced.As the swaying motion begins to decrease andthe vehicle-trailer have once again become sta-ble, TSA will now stop regulating the brakes/engine power and the driver regains control ofthe vehicle. TSA is deactivated if the driver deactivates
ESCin the center display's menu system.
When the ESC symbol in the
instrument panel flashes, TSA is active.
Related information
• Detachable trailer hitch
* (p. 387)
• Driving with a trailer (p. 384)
• Electronic Stability Control (ESC) (p. 259)

STARTING AND DRIVING
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413
•
If the vehicle's speed goes above approx. 78 mph (125 km/h)
• If the driver wants more response than theelectric motor alone can provide
• If factors such as cold weather, etc., affectthe system or components
ECO climate
In the Pure drive mode, ECO climate in the pas-
senger compartment is activated automatically to help reduce energy consumption.
NOTE
When the Pure drive mode is activated, set-
tings for certain climate system/electricity- consuming functions are reduced. Some ofthese settings can be reset manually but fullfunctionality will only be restored by leaving the
Pure drive mode or by adapting the set-
tings in the Individual drive mode to full cli-
mate system functionality.
If condensation forms on the windows, tap the max. defroster button, which will function nor-mally.
OFF ROAD
This mode helps maximize the vehicle's capacity to traverse difficult terrain or poor roads. In OFF ROAD, ground clearance is maximized, the steering is light, All Wheel Drive and HillDescent Control are activated and a compass will be displayed between the speedometer and tach-ometer in the instrument panel. This drive mode can only be activated at low speeds (the permissible speed range will beshown on the speedometer). At higher speeds,OFF ROAD mode will be cancelled and AWD willbe activated.
CAUTION
OFF ROAD drive mode may not be used if the vehicle is towing a trailer without an elec-trical connection. This could result in damageto the pneumatic suspension system's bel-lows.
NOTE
•
This mode is not intended for normal street driving.
• Due to the increased ground clearance, ifthe OFF ROAD mode was selected whenthe engine was switched off, the suspen-sion will lower when the engine is restar-ted.
AWD
This mode offers improved traction on slippery surfaces by using four-wheel drive. It also helpsincrease directional stability at higher speeds, forexample when towing a trailer. In this mode, both the electric motor and the gas-oline engine are utilized, which results in higherfuel consumption. In the other drive modes, the vehicle automati- cally adapts the need for all-wheel drive accord-ing to the road surface and may activate the elec-tric motor or start the gasoline engine asrequired.
POWER
Power mode is intended for sportier, more active
driving. This mode maximizes the combined effects of the electric motor and the gasoline engine andprovides power to all four wheels. Response topressure on the accelerator pedal is more imme-diate and the transmission shifts up at higherrpm. Steering response is also more immediate,the suspension is stiffer and lower ground clear-ance reduces body roll when cornering. In this mode, both the electric motor and the gas- oline engine are utilized, which results in higherfuel consumption.

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STARTING AND DRIVING
* Option/accessory.
414
INDIVIDUAL
This setting allows you to adapt a drive mode to your personal preferences. Select one of the other drive modes as a basis and change the settings to provide the drivingcharacteristics that you prefer. These settingscan be saved in a driver profile. INDIVIDUAL is only available if it has been acti- vated in the center display. 1.
Tap
Settings in the center display's Top
view.
2. Tap
My CarIndividual Drive Mode and
tap Individual Drive Mode.
3. Under
Presets, select: Pure, Hybrid orPower.
The following settings can be modified: •
Driver Display
•Steering force
•Powertrain Characteristics
•Brake Characteristics
•Pneumatic suspension and shock absorbers
•ECO Climate
Use of the gasoline engineAn advanced control system determines the dis- tance that the vehicle can be driven using the gasoline engine, electric motor or both at thesame time. Its primary function is to use the motor/engine and the current available in the hybrid battery asefficiently as possible based on the characteris-tics of the various drive modes and the poweroutput requested by the driver by pressing theaccelerator pedal. In certain cases, temporary limitations in the sys- tem or mandatory functions to help maintain alow overall emissions level may result in greateruse of the gasoline engine.
Related information
•
Adjustable steering force
* (p. 258)
• Loading (p. 216)
• Driver profiles (p. 179)
• General information about Twin Engine Plug-in Hybrid vehicles (p. 16)
• All Wheel Drive (AWD) (p. 419)
• Hill Descent Control (HDC) (p. 366)
• Brakes (p. 362)
• Hybrid-related information in the instrumentpanel (p. 133)
• Maintaining/increasing the hybrid battery'scharge while driving (p. 410)
Automatic transmission
The automatic transmission has 8 forward gears and an electric motor that powers the rear wheels. Steering wheel paddles * make it possi-
ble to shift manually. The gear indicator in the instrument panel shows the gear currently beingused or gear shift mode.
CAUTION
The transmission

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MAINTENANCE AND SERVICING
* Option/accessory.
514
Function [A]
– –
Horn 20
Alarm siren* 5
Brake system control module (valves, parking brake) 40
Windshield wipers 30
Tailgate window washer 25
Heated windshield
*, passenger
side 40
– –
Brake system control module (ABS pump)
40
– –
Heated windshield
*, passenger
side Shunt
Feed when ignition is switched on to: engine control module,transmission components, elec-trical power steering, centralelectrical module 5
Exterior vehicle sound (certain markets)
5
Function
[A]
Passenger side headlight 7,5
– –
– –
– –
Air bags; Occupant Weight Sen- sor (OWS) 5
Driver side headlight Driver's side headlight, certain LED models7.5
15
Accelerator pedal sensor 5
Transmission control module; Gear selector control module 15
Engine control module 5
– –
– –
– –
– –
Engine control module; Actuator; Turbo-charger valve20
Function
[A]
Solenoids; Valves; Engine cool- ing system thermostat 10
Vacuum regulators; Valve 7.5
Spoiler shutter control module; Radiator shutter control module;Fuel leakage detection 5
– –
Heated oxygen sensors (front and rear)
15
Oil pump solenoid; A/C mag- netic coupling; heated oxygensensor (center)15
– –
Engine control module 20
Ignition coils; Spark plugs 15
– –
– –
Transmission oil pump control module
30
Vacuum pump control module 40
Transmission actuator 25

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MAINTENANCE AND SERVICING
* Option/accessory.
518
Positions
• Fuses 1, 3–21, 23–36, 39–53 and 55–59 are called "Micro".
• Fuses 2, 22, 37–38 and 54 are called"MCase" and should only be replaced by atrained and qualified Volvo service technician.
Function
A
– –
– –
– –
Alarm system movement sensorA
5
Media player 5
Instrument panel 5
Center console buttons 5
Sun sensor 5
– –
– –
Steering wheel module 5
Module for start knob and parking brake 5
Heated steering wheel
* module 15
Function
A
– –
– –
– –
– –
Climate system control module 10
– –
On-board diagnostics (OBDII) 10
Center display 5
Climate system blower module (front)40
– –
Instrument lighting; Courtesy light- ing; Auto-dim rearview mirror; Rainand light sensor; Rear tunnel con- sole keypad
*B
; Power front seats *;
Power rear seats C
; Display for rear
seat convenience functions *; Rear
seat massage function *; Rear door
control panels 7.5
Control module for driver support functions
5
Function
A
Panorama roof and sun shade*20
Head-up display
* 5
Courtesy lighting 5
– –
Ceiling console display (seat belt reminder, front passenger side air-bag indicator) 5
– –
Humidity sensor 5
Rear passenger-side door module 20
Fuses in the cargo compartment 10
Internet connection control module; Volvo On Call control module
5
Rear driver-side door module 20
Infotainment control module (amplifier)40
Climate system blower module (rear)
* 40
Multi-band antenna module 5
Front seat massage function 5

INDEX
571
Options 26
Outside temperature sensor 118
Overhead courtesy lighting 151
Overheating, engine 375Owner's information
mobile applications 25
Owner's manual 21
Ownership, changing 118
Oxygen sensors, heated 381
P
Paint, touching up 547, 548
Park assist 344, 345, 346, 347
Park Assist Camera 348, 350, 352, 353 settings 348, 352
Park Assist Pilot 354, 355, 358, 360Parking brake electric, applying/releasing 369, 371
Parking light bulb, replacing 529Passenger compartment fuses 516
Passive Entry system location of antennas 244
Permissible axle weight 557
Phone phone book 443
receiving calls 441
text messages 444, 445
Pilot Assist 285, 291, 294, 297, 298, 300, 301
Plug-in hybrid general information 16
Polishing 549 Power front seat memory function 168
Power mirrors 106 defroster 204
Power steering adjustable 258
Power tailgate 248
Power windows 111
Preconditioning 187, 189 starting/stopping 192
symbols and messages 193
timer 190
Preconditioning, retaining climate comfort 189
Pregnancy, using seat belts during 62
PROPOSITION 65 WARNING 382R
Radar driver support systems 304, 308
Radar sensor limitations 305
Radio RBDS 424
settings 424 SiriusXM ®
Satellite radio 429, 430, 432
Radio functions HD digital radio 426, 427, 428, 429
Rain sensor 161
Rear Collision Warning 324
Rear fog lights 149
Rear park assist 344, 345, 346, 347
Rear seat head restraints 173
Rear seats 173 accessing the third row 178
adjusting backrest tilt 175
center head restraint 173
folding 176, 178
moving forward/rearward 175
Rearview mirror compass 141, 142
Rear window defroster 204
Recalls 62

INDEX
573
Stability system 259
sport mode 260
Start and lock system type designations 256
Starting and driving 362
Starting the engine 390Starting the vehicle after a crash (crash mode) 78
Start inhibitor (immobilizer) 232
Steel grid in cargo area 223
Steering wheel 164 adjusting 165
heated 206
horn 164
keypad 164
Steering wheel paddles 164
Stone chips, touching up 547, 548
Storage compartments 218
Studded tires 479Sunroof laminated panoramic roof 108, 109
Sun shade 111, 113
Sun visor 227
Suspension 419
System updates 500
T
Tailgate locking/unlocking 246
locking/unlocking (private locking) 250operating with the foot movement sen-
sor 240
power operated 248
wiper/washer 163
Tailgate wipers 538
Technician certification 58Temperature perceived 186
Temperature sensor ambient 118
Tethering wi-fi sharing 462
Three-way catalytic converter 381Timer preconditioning 190
Tire inflation pressure 563
Tire Pressure Monitoring System 485, 488 calibrating 489
Tire Pressure Monitoring System (TPMS) 489
Tires 472, 482 changing 481
changing from summer to winter 477
glossary of terms 476
improving economy 472
inflation pressure 480
inflation pressure table 563installing (mounting) a wheel on the
vehicle 485
rotation 473
snow 479
specifications 474
storing 473
studded 479
tire pressure monitoring system 485, 488
tire sealing system 490, 492, 495
tread wear indicator 477
uniform tire quality grading 479
wheel bolts 483
Tire sealing system 490, 492, 495 Top tether anchors (child restraint sys- tems) 91
Touching up paint 547, 548
Towbar 387
Towing a trailer 384, 388 trailer hitch 387
Towing eyelet 376
Towing the vehicle 377
Traction control 259
Trailer hitch 387

INDEX
574Trailer towing 384, 388
trailer hitch 387
Transmission gear shift indicator 415
general description 414, 416
Hill Start Assist 368
oil 564
shifting with steering wheel paddles 418
shiftlock override 415
Travel Link 433 Alerts 435
Fuel 436
Sports 437
weather 434
Tread wear indicator 477
Trip computer 99, 100, 102 reset 100
Trip odometers 99
Trips, long distance 372
Trip statistics 102
Turn signals 150 changing bulbs 528
U
Uniform Tire Quality Grading 479
Unlocking the tailgate 246
Unlocking the vehicle 241, 243
USB/AUX connection 446, 454
User profile 179
V
Vehicle Event Data 31
Vehicle information 14
Vehicle loading 216, 478
Vehicle maintenance 498performed by the owner 498
Vehicle status 501
Vehicle weights 557Voice control cell phones 124
giving commands 123
introduction 123
multimedia devices 125
radio 125
settings 128
Volvo and the environment 20
Volvo ID 32
Volvo maintenance 498
Volvo On Call Roadside Assistance 14
Volvo programs 14
W
Warning flashers, hazard 150
Warning lights 140
Warning system, collision 313
Warranties 498
Washer fluid 541Washers headlight 162
windshield 160
Water, driving through 374
Waxing 549Weights trailer 384
Wheels changing 481, 483
storing 473
Whiplash Protection System 63
Wi-Fi 462, 463Windows laminated glass 58
power 111
sun shade 111
Windshield rain sensor 161
washers 162
wipers/washers 160