tire type VOLVO XC90 T8 2018 Owner´s Manual

WHEELS AND TIRES
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553
Tread wear indicatorThe tread wear indicator shows the status of the tire's tread.
The tread wear indicator is a narrow elevated strip running across the tire's longitudinal treadgrooves. The letters TWI (Tread Wear Indicator)are visible on the side of the tire. When approxi-mately 1.6 mm (1/16 inch) is left on the tread,the tread will be at the same height as the treadwear indicator. Replace the tire as soon as possi-ble. Tires with low tread offer very poor traction inrain or snow.
Related information
• Tires (p. 550)
Tire terminology The following is a glossary of tire-related terms.
The tire suppliers may have additional markings, notes or warnings such as standard load, radialtubeless, etc.
• Tire information placard
: A placard show-
ing the OE (Original Equipment) tire sizes,recommended inflation pressure, and themaximum weight the vehicle can carry.
• Tire Identification Number (TIN)
: A number
on the sidewall of each tire providing infor-mation about the tire brand and manufactur-ing plant, tire size and date of manufacture.
• Inflation pressure
: A measure of the
amount of air in a tire.
• Standard load
: A class of P-metric or Metric
tires designed to carry a maximum load at 35psi [37 psi (2.5 bar) for Metric tires]. Increas-ing the inflation pressure beyond this pres-sure will not increase the tires load carryingcapability.
• Extra load
: A class of P-metric or Metric
tires designed to carry a heavier maximumload at 41 psi [43 psi (2.9 bar) for Metrictires]. Increasing the inflation pressurebeyond this pressure will not increase thetire's load carrying capability.
• kPa
: Kilopascal, a metric unit of air pressure.
• PSI
: Pounds per square inch, a standard unit
of air pressure. •
B-pillar
: The structural member at the side
of the vehicle behind the front door.
• Bead area of the tire
: Area of the tire next
to the rim.
• Sidewall of the tire
: Area between the bead
area and the tread.
• Tread area of the tire
: Area of the perime-
ter of the tire that contacts the road whenmounted on the vehicle.
• Rim
: The metal support (wheel) for a tire or a
tire and tube assembly upon which the tirebeads are seated.
• Maximum load rating
: a figure indicating
the maximum load in pounds and kilogramsthat can be carried by the tire. This rating isestablished by the tire manufacturer.
• Maximum permissible inflation pressure
:
the greatest amount of air pressure thatshould ever be put in the tire. This limit is setby the tire manufacturer.
• Recommended tire inflation pressure
:
inflation pressure, established by Volvo,which is based on the type of tires that aremounted on a vehicle at the factory. Thisinformation can be found on the tire inflationplacard(s) located on the driver's side B-pillarand in the tire inflation table in this chapter.
• Cold tires
: The tires are considered to be
cold when they have the same temperatureas the surrounding (ambient) air. This tem-

WHEELS AND TIRES
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571
Snow tires
Snow tires are designed for winter driving.
Volvo recommends snow tires with specific dimensions. The tire dimensions vary dependingon engine type. When driving with snow tires, thecorrect type of tires must be mounted on all fourwheels.
NOTE
Contact a Volvo dealer for advice on the best choice of rims and tires.
Tips for changing snow tiresWhen switching between regular tires and snow tires, mark the tires according to which side they were mounted on, e.g. L for left and R for right.
Studded tiresStudded tires should be broken in by driving 500–1000 km (300–600 miles) slowly and gen-tly to help the studs settle properly in the tires.This gives the tire, and especially the studs, alonger service life.
NOTE
Regulations regarding the use of studded tires vary from country to country.
Tread depthRoad conditions with ice, slush and low tempera- tures place considerably higher demands on tiresthan summer conditions. Volvo therefore recom-mends not driving on snow tires that have a treaddepth of less than 4 mm (0.15 inch).
Related information
• When changing wheels (p. 564)
• Winter driving (p. 461)
• Tread wear indicator (p. 553)
Snow chains
Using snow chains and/or snow tires can help improve traction in winter driving conditions.
WARNING
Use Volvo genuine snow chains or equivalent snow chains that are suitable for the vehicle model and the tire and wheel sizes. Only one-
sided snow chains are permitted.
If uncertain about snow chains, Volvo recom- mends contacting an authorized Volvo work-shop. Use of the wrong snow chains couldcause serious damage to the vehicle andresult in an accident.
12 The backrest in the third row of seats * must be folded down.

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WHEELS AND TIRES
572
CAUTION
Snow chains can be used on the vehicle, with the following restrictions:• Volvo recommends not using snowchains on wheel dimensions larger than19 inches.
• Always follow the manufacturer's installa-tion instructions carefully. Install chainsas tightly as possible and retighten peri-odically.
• Only put snow chains on the front wheels(also applies to all-wheel drive vehicles).
• If accessory, aftermarket or "custom"tires and wheels with different dimen-sions than the original tires and wheelsare used, snow chains in some casesmay NOT be used. Sufficient distancebetween the chains and brakes, suspen-sion and body components must bemaintained.
• Check local regulations regarding the useof snow chains before installing.
• Never exceed the snow chain manufac-turer's specified maximum speed limit.Under no circumstances should youexceed 50 km/h (30 mph).
• Avoid bumps, holes or sharp turns whendriving with snow chains.
• Avoid driving on surfaces without snow as this wears out both the snow chains andthe tires.
• The handling of the vehicle can beadversely affected when driving withchains. Avoid fast or sharp turns as wellas locked wheel braking.
• Some types of strap-on chains affectbrake components and therefore mustNOT be used.
Consult a Volvo retailer for more information about snow chains.
Related information
•
Winter driving (p. 461)
Tire sealing system13
The temporary tire sealing system can be used to seal a puncture in a tire or to check andadjust the pressure in the tire. Models equipped with a spare wheel 14
do not
have the tire sealing system.
The tire sealing system consists of a compressor and a bottle containing sealing compound. Thesealing functions as a temporary repair.
NOTE
The sealing compound effectively seals tires with punctures in the tread but may not beable to fully seal tires with punctures in thesidewall. Do not use the tire sealing systemon tires with large tears, cracks or similardamage.
NOTE
The compressor is intended for temporary tire sealing and is approved by Volvo.
LocationThe tire sealing system is located in a foam block under the floor of the cargo compartment.

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MAINTENANCE AND SERVICE
600
Monthly:
•Check cold tire pressure in all tires. Inspect the tires for wear.
• Check that engine coolant and other fluidlevels are between the indicated "min" and"max" markings.
• Clean interior glass surfaces with a glasscleaner and soft paper towels.
• Wipe driver information displays with a softcloth.
• Visually inspect battery terminals for corro-sion. Corrosion may indicate a loose terminalconnector, or a battery near the end of itsuseful service life. Consult your Volvo retailerfor additional information.
As needed:
Wash the car, including the undercarriage, to reduce wear that can be caused by a buildup ofdirt, and corrosion that can be caused by salt res-idues. Clean leaves and twigs from air intake vents at the base of the windshield, and from other placeswhere they may collect.
NOTE
Complete service information for qualified technicians is available online for purchase orsubscription at www.volvotechinfo.com.
Related information
•Vehicle status (p. 602)
• Scheduling service and repairs (p. 603)
• Connecting equipment to the vehicle's data link connector (p. 36)
• Technician certification (p. 37)
• Climate control system service (p. 608)
• Maintenance of the brake system (p. 432)
• Engine compartment overview (p. 609)
Data transfer between vehicle andworkshop over Wi-Fi
Volvo workshops have a designated Wi-Fi net- work for secure data transfer between your vehi-cle and the workshop. Your visit to the workshopwill be easier and more effective when diagnos-tics information and software can be transferredover the workshop's network.
When you arrive at the workshop, your technician can connect your vehicle to the workshop's Wi-Finetwork to perform troubleshooting and down-load software. For this type of communication,the vehicle only connects to the workshop's net-work. The vehicle can only be connected to thedesignated workshop networks, not to any othernetwork, e.g. your home network.
Manual connection to workshop Wi-FiManual connection is usually performed by aservice technician. Because the technician usesthe buttons on your remote key to connect thevehicle, it is important that you bring a key withbuttons when taking the vehicle in to a workshop.Pressing the lock button on the remote key threetimes will connect the vehicle to the workshop'sWi-Fi network. When the car is connected to a Wi-Fi network, the
symbol appears in the center display.

SPECIFICATIONS
665
Approved tire pressureThe following tire pressures are recommended by Volvo for your vehicle. Refer to the tire infla- tion placard for information specific to the tiresinstalled on your vehicle at the factory.
Tire dimensionsCold tire pressure for up to seven people (depending on number of seats)
Front
psi (kPa)
Rear
psi (kPa)
235/55 R19 275/45 R20275/40 R21275/35 R22 42 (290)
42 (290)
Temporary spare tire N/AN/A
Related information
•Type designations (p. 654)
• Checking tire pressure (p. 557)

INDEX
677
Roll Stability Control 273
Roof load, max. weight 659
RSC (Roll Stability Control) 273
Run-off Mitigation 373, 374
S
Safety 42
pregnancy 43
Safety belt, see Seat belt 47
Safety defects, reporting 44
Safety mode 61 starting/moving 62
Sealing compound 572
Seat, see Seats 184
Seat belt reminder 51
Seat belts 47 Automatic locking retractor/Emergency
locking retractor 65
buckling/unbuckling 48
pregnancy 43
seat belt reminder 51
seat belt tensioner 50
securing child restraint systems 67, 69, 71
Seat belt tensioner 50 resetting 51
Seats
heating 215, 216
manual front seat 184
memory function front seat 186, 187
power front seats 185
ventilation 217
whiplash protection 46
Sensors air quality 207
climate 202
Sensus connection and entertainment 30
Sensus Navigation 359
Service position 649
Service program 598
Set time interval 293
settings 135 Categories 136
contextual 133
resetting 135
settings menu 135
Shiftlock 442
Side airbag 60
Side Impact Protection System 60
SIM card 533
SIPS (Side Impact Protection System) 60Sirius Satellite radio Travel link 502
SiriusXM ® Satellite radio
traffic information 498, 499, 500
Slippery conditions 461
Slippery road conditions 461
Software updates 33
Sound settings 486, 527 phone 528
playing media 508, 509
text message 527
Spare tire 569, 570
Speed camera 361
Speed Limiter 278, 281, 282, 285 getting started 279
shut down 281
temporary deactivation 280
Speed symbols, tires 554
Spin control 274
Stability and traction control system 274, 277 operation 275, 276
Stability system 274
Stains 633, 635, 636, 637, 638 Start and lock system type designations 252

INDEX
679
removal 566
rotation 551
specifications 554, 665
storage 550
tire pressure monitoring 559
tire sealing 572
Tread depth 571
tread wear indicator 553
winter tires 571
Tire sealing system 573
Tire tread 553
Tools 564 Top tether anchors (child restraint sys- tems) 72
Total airing function 239, 257
Towbar 471 removable, attaching, installing, mount-
ing 471
removable, removing, detaching 471
Towing 476
Towing capacity and towball load 660
Towing eyelet 476
TPMS - Tire Pressure Monitoring System 559
Traction control 274
Traffic information 493
Trailer 474 driving with a trailer 472
Lamps 475
swaying 474
Trailer Stability Assist 474 trailer 474
Trailer stabilizer 274 Trailer towing trailer hitch 471
Transmission 438 automatic 439
Transmission fluid grade 663
Travel Link 502 Fuel 505
Notifications 504
Sports 506
weather 503
Tread depth 553, 571
Tread wear indicator 553
Trip computer 89, 90
Trip odometer 89
Trip odometer resetting 91
Trip statistics 92 Troubleshooting Adaptive Cruise Control 307
Troubleshooting the camera sensor 332
TSA - Trailer Stability Assist 274, 474Tunnel detection 155
Turn off engine 426
Turn signals 158Twin Engine general 406
Type approval radar system 330
U
Uniform Tire Quality Grading 556
Units 132
Unknown vehicle component 270 Unlockingsettings 242
with key blade 251
USB socket for connecting media 514
V
Vehicle care 638, 639, 641, 642, 643, 644leather upholstery 636
Vehicle Event Data 33 Vehicle functions in the center display 122