2018 VOLVO S90 traction control

STARTING AND DRIVING
404
Parking on a hill
Always use the parking brake when parking on a hill.
WARNING
Always apply the parking brake when parking on an incline. Selecting a gear or putting the automatic transmission in P may not be suffi-
cient to keep the vehicle stationary in all sit- uations.
If the vehicle is pointing uphill: • Turn the front wheels so they are pointing away from
the curb.
If the vehicle is pointing downhill:
• Turn the front wheels so they are pointingtoward
the curb.
Heavy load uphill
Heavy loads, such as a trailer, could cause the vehicle to roll backward when the parking brakeis released automatically on steep uphill gradi-ents. To help avoid this, pull the control upwardwhile you are driving away. Release the controlwhen the vehicle gains traction.
Related information
•Activating and deactivating the parking brake(p. 402)
Parking brake malfunction
If you are unable to deactivate or activate the parking brake after several attempts, contact anauthorized Volvo workshop.
A audible warning signal will sound if the parking brake is applied while the vehicle is being driven. If the vehicle must be parked before the problem is rectified, turn the wheels as when parking on an incline and put the gear selector in P.
Low battery charge levelIf the battery charge level is too low, it will not be possible to apply or release the parking brake.Connect an auxiliary battery to the vehicle if thebattery is discharged.
Replacing brake padsDue to the design of the electric parking brake,the rear brake pads must be replaced by a work-shop. An authorized Volvo workshop is recom-mended.
Symbols in the instrument panel
SymbolMeaning
A
B A flashing symbol indicates that a fault has been detected. See themessage in the instrument panel.
A
B
Fault in the brake system. See the message in the instrument panel.
Information message in the instru- ment panel.
A
Canadian models.
B US models.

STARTING AND DRIVING
}}
* Option/accessory.413
Gear indicator in 8" instrument panel.
Related information
•Gear selector positions for automatic trans- missions (p. 408)
All Wheel Drive (AWD)
*
All-wheel drive, All Wheel Drive (AWD), also called four-wheel drive, means that power is dis-tributed to all four wheels, which improves trac-tion.
To achieve the best traction, power is automati- cally directed to the wheels that have the bestgrip. The system continuously calculates theneed for torque to the rear wheels, and canimmediately redistribute up to half of the engine'storque to the rear wheels. All-wheel drive also has a stabilizing effect at higher speeds. In normal driving conditions, mostof the engine's power is directed to the frontwheels. When the vehicle is stationary, all-wheeldrive is always activated in preparation for maxi-mum traction during acceleration. All-wheel drive reacts differently depending on which drive mode * is selected.
Related information
• Drive modes
* (p. 413)
• Transmission (p. 407)
Drive modes
*
Drive modes affect the vehicle's driving charac- teristics in different ways to enhance and sim-plify the driving experience in certain types of sit-uations.
Drive modes enable easy access to the vehicle's many functions and settings in different drivingsituations. The following systems are adapted tohelp optimize driving characteristics in each drivemode: • Steering
• Engine/transmission/all-wheel drive
*
• Brakes
• Shock absorbers
• Instrument panel
• Start/Stop function
• Climate control settings
Select the drive mode that is best suited to the current driving conditions. Keep in mind that notall drive modes are available in all situations.
Available drive modes
COMFORT
• This is the vehicle's default mode.
When the engine is started, the vehicle will be in Comfort mode and the Start/Stop function will beactivated. This setting offers driving comfort, lightsteering and soft suspension.

||
STARTING AND DRIVING
* Option/accessory.
414
ECO
• Adapt the vehicle for more fuel-efficient and eco-friendly driving with Eco mode.
In this mode, the Start/Stop function is activatedand certain climate settings are reduced. The instrument panel has an ECO gauge to facili- tate fuel-efficient driving.
DYNAMIC
• Dynamic mode is designed to provide sport- ier driving characteristics and a faster accel-eration response.
Gear shifting will be faster and more distinct andthe transmission will prioritize gears with a highertraction force. Steering response is faster and suspension is stiffer 3
to help reduce body roll when cornering.
The Start/Stop function is deactivated.
INDIVIDUAL
• Customizes drive mode to personal preferen- ces.
Select one of the drive modes as a basis andadjust the settings to achieve your preferred driv- ing characteristics. These settings will be stored in your driver profile. Individual drive mode is only available if it has been activated in the center display.Settings view 4
for Individual drive mode.
1. Tap Settings in the Top view.
2. Tap
My CarIndividual Drive Mode and
select Individual Drive Mode. 3.
Under
Presets, select one of the following
drive modes as a basis: Eco, Comfort orDynamic.
The following settings can be modified: •
Driver Display
•Steering force
•Powertrain Characteristics
•Brake Characteristics
•Suspension Control
•ECO Climate
•Start/Stop.
Related information
• Changing drive mode
* (p. 415)
• ECO drive mode (p. 415)
• Economical driving (p. 424)
• Start/Stop function (p. 418)
• All Wheel Drive (AWD)
* (p. 413)
3
Vehicles with Four-C.
4 The image is schematic and the details may vary depending on vehicle model or software update.

AUDIO, MEDIA AND INTERNET
* Option/accessory.
444
Audio, media and Internet
The audio and media system consists of a media player and a radio. A cellular phone can also beconnected through Bluetooth to use hands-freefunctions or play music in the vehicle. When thevehicle is connected to the Internet, it is alsopossible to use apps to play media.
Audio and media overview
The functions can be controlled using voice com- mands, the steering wheel keypad or the centerdisplay. The number of speakers and amplifiersvaries depending on the audio system installed inthe vehicle.
System updates
The audio and media system is continuously improved. When the vehicle has an Internet con-nection, system updates can be downloaded foroptimal functionality; see support.volvocars.com.
Related information
• Media player (p. 465)
• Radio (p. 448)
• Phone (p. 478)
• Internet-connected vehicle
* (p. 487)
• Apps (p. 445)
• Voice control (p. 143)
• Ignition modes (p. 397)
• Driver distraction (p. 39)
• Handling system updates via Download Cen-ter (p. 551)
• License agreement for audio and media(p. 497)
Sound settings
The audio system is precalibrated for optimal sound reproduction but these settings can bepersonalized.
The system's volume is normally adjusted using the volume control below the center display orthe right-side steering wheel keypad. Thisapplies, for example, when playing music or theradio or during phone calls and active traffic mes-sages.
Optimal sound reproductionThe audio system is precalibrated for optimalsound reproduction using digital signal process-ing. This calibration takes into account speakers,amplifiers, passenger compartment acoustics, lis-tener position, etc. for each combination of vehi-cle model and audio system. There is also adynamic calibration that takes into account thevolume control setting and the vehicle's speed.
Sound settings as needed
In Top view under SettingsSound, the fol-
lowing settings can be selected:
•
Tone — personal preference for bass, treble,
equalizer for example.
•
Balance - balance between right/left and
front/rear speakers.
•
System Volumes – adjusts volume in the
various systems of the car, e.g. Voice
Control, Park Assist and Phone Ringtone.

WHEELS AND TIRES
508
Tires
The function of the tires is to carry loads, provide traction on road surfaces, reduce vibrations andprotect the wheels from wear.
The tires significantly influence the vehicle's driv- ing characteristics. The type, dimensions, tirepressure and speed rating have a considerableimpact on how the vehicle performs. Your vehicle is equipped with tires according to the vehicle's tire information placard on the B-pil-lar (the structural member at the side of the vehi-cle, at the rear of the driver's door opening).
WARNING
A damaged tire could cause the driver to lose control of the vehicle.
CAUTION
Some Volvo models are equipped with an Ultra High Performance tire and wheel com-bination designed to provide maximum drypavement performance with consideration forhydroplaning resistance. They may be moresusceptible to road hazard damage and,depending on driving conditions, may achievea tread life of less than 30,000 km (20,000miles). Even if this vehicle is equipped withVolvo's advanced AWD or stability system,these tires are not designed for winter driving,and should be replaced with winter tires whenweather conditions dictate.
The tires have good road holding characteristics and offer good handling on dry and wet surfaces.It should be noted however that the tires havebeen developed to give these features on snow/ice-free surfaces. Most models are equipped with "all-season" tires, which provide a somewhat higher degree of road-holding on slippery road surfaces than tires with-out the "all-season" rating. However, for optimalroadholding on icy or snow-covered roads, werecommend snow tires on all four wheels. When replacing tires, be sure that the new tires are the same size designation, type (radial) andpreferably from the same manufacturer, on all four wheels. Otherwise there is a risk of alteringthe vehicle's roadholding and handling characte-ristics.
Recommended tiresOn delivery, the car is equipped with Volvo origi- nal tires that have the VOL
1
marking on the side
of the tires. These tires have been designed spe- cifically for your vehicle. It is therefore importantwhen replacing tires that the new tires have thissame marking to help maintain the vehicle's driv-ing characteristics, comfort and fuel consumption.
New tires
Tires are perishable goods. After a few years, they will begin to harden and their friction proper-ties will gradually deteriorate. Always replace tireswith the freshest tires possible. This is particularlyimportant for snow tires. A series of numbers is
1 This may vary for certain tire dimensions.

WHEELS AND TIRES
514
Uniform Tire Quality Grading
ALL PASSENGER VEHICLE TIRES MUST CONFORM TO FEDERAL SAFETY REQUIRE-MENTS IN ADDITION TO THESE GRADES .
Quality grades can be found, where applica- ble, on the tire sidewall between the treadshoulder and maximum section width. Forexample: Treadwear 200 Traction AA Temperature A
TREADWEARThe treadwear grade is a comparative rating based on the wear rate of the tire when testedunder controlled conditions on a specified gov-ernment test course. For example, a tire graded150 would wear one and one half (1 ½) times aswell on the government course as a tire graded100. The relative performance of tires dependsupon the actual conditions of their use, however,and many depart significantly from the norm dueto variation in driving habits, maintenance practi-ces and differences in road characteristics andclimate.
TRACTIONThe traction grades, from highest to lowest, areAA, A, B, and C, as measured under controlledconditions on specified government test surfacesof asphalt and concrete. A tire marked C mayhave poor traction performance.
WARNING
The traction grade assigned to this tire is based on braking (straight-ahead) tractiontests and is not a measure of cornering (turn-ing) traction.
TEMPERATUREThe temperature grades are A (the highest), B, and C, representing the tire's resistance to thegeneration of heat and its ability to dissipate heatwhen tested under controlled conditions on aspecified indoor laboratory test wheel. Sustainedhigh temperature can cause the material of thetire to degenerate and reduce tire life, and exces-sive temperature can lead to sudden tire failure.The grade C corresponds to a minimum level ofperformance that all passenger vehicle tires mustmeet under the Federal Motor Safety StandardNo. 109. Grades B and A represent higher levelsof performance on the laboratory test wheel thanthe minimum required by law.
WARNING
The temperature grade for this tire is estab- lished for a tire that is properly inflated andnot overloaded. Excessive speed, under-infla-tion, or excessive loading, either separately orin combination, can cause heat buildup andtire failure.
Related information
•Tires (p. 508)
• Tire sidewall designations (p. 512)

INDEX
625
recalls and registration 65
top tether anchors 72
Child safety 63
Child safety locks 250
City Safety 324, 325, 327, 328, 333, 335
City Safety in crossing traffic 330, 331City Safety when evasive maneuver preven- ted 332
Cleaning 592, 594, 595 automatic car wash 598
car wash 595, 596, 598, 599, 600, 601
center display 590
Seat belts 592
textile upholstery 590, 592, 593
upholstery 590, 592, 593, 594, 595
wheels 601
Cleaning wheels 601
Cleaning wiper blades 599
Clean Zone 199
Clean Zone Interior Package 200
Climate 196 auto-regulation 215
blower control 220, 221
perceived temperature 197
Sensors 197
temperature control 222, 223, 224
voice control 198
zones 196
Climate controls 208 center display 208
rear seat 208
Climate system 196, 208 Refrigerant 620
repairs 558
Clock, setting 90
Collision 42, 47, 52, 61 Collision warner detection of pedestrians 328
radar sensor 315
Collision warning 324, 336
Color code, paintwork 603
Color codes 603
Compass 441 calibration 441
Condensation in headlights 596, 598, 599, 600
Connecting vehicle to Internet No connection or poor connection 492
via a mobile device (WiFi) 489
via mobile device (Bluetooth) 489
via vehicle's modem 490
Connect phone 479
Contact information 26Convertible seats 69
coolant 619
Coolant, filling 562Cooling system overheating 431
Cornering illumination 158
Corner Traction Control 264
Corrosion protection 601
Crash, see Collision 42
Crash event data 33
Cross Traffic Alert – CTA 342, 343, 344, 345
Cruise control 275, 276 manage speed 276, 277
temporary deactivation 278, 279
turn off 279
CTA – Cross Traffic Alert 342, 343, 344, 345
Curb weight 615
CZIP (Clean Zone Interior Package) 200
D
Data recording 33 transferring between vehicle and work-
shop 550
Data sharing 494

INDEX
633
SiriusXM
® Satellite radio
traffic information 456, 457, 458
Ski hatch 545
Slippery conditions 425, 426
Slippery road conditions 426
Software updates 33
Sound settings 444, 485 phone 486
playing media 466, 467
text message 485
Spare tire 527, 528
Speed camera 350
Speed Limiter 267, 270, 271, 274 getting started 268
shut down 270
temporary deactivation 269
Speed symbols, tires 512
Spin control 264
Stability and traction control system 264, 266 operation 265
Stability system 264
Stains 590, 592, 593, 594, 595
Start/Stop 418 deactivate 419
Driving 418
limitations 420
Start and lock systemtype designations 242
Start battery 433, 573 overload 432
Start engine 394 Starting the engine after a collision 62
Start the vehicle 394Steering assistance at risk of colli-
sion 361, 362, 363, 364, 365, 366, 367, 369 Steering assistance at risk of rear-end col-
lision 366, 367 Steering power level, see Steering wheel
resistance 262 Steering resistance at risk of head-on colli-
sion 364, 365
Steering wheel 192, 193 heating 214, 215
keypad 192
paddle 192
steering wheel adjustment 193
Steering wheel keypad 192
Steering wheel paddles 409 Steering wheel resistance, speed-depend- ent 262
Stone chips and scratches 602, 603
Stop/start function 418Storage compartments 538 center console 539
glove compartment 541
sun visor 542
Sunroof pinch protection 166
Sun shade panoramic roof 174, 179
pinch protection 166
rear door 170
rear window 170
Sun visor 542 mirror lighting 161
Support battery 576 Symbols indicator symbols 91
Symbols and messages Adaptive Cruise Control 298
center display's status bar 122
Collision warner with auto-brake 335
Symbols and messages for Assistance at
risk of collision 369
system updates 551