2014 VOLVO XC70 traction control

08 Wheels and tires
Uniform Tire Quality Grading
08
313
Quality grading information
ALL PASSENGER VEHICLE TIRES MUST CONFORM TO FEDERAL SAFETYREQUIREMENTS IN ADDITION TO THESEGRADES Quality grades can be found, where appli- cable, on the tire sidewall between thetread shoulder and maximum sectionwidth. For example: Treadwear 200 Traction AA Temperature A
TREADWEARThe treadwear grade is a comparative rating based on the wear rate of the tire when tes-ted under controlled conditions on a specifiedgovernment test course. For example, a tiregraded 150 would wear one and one half(1 1/2) times as well on the governmentcourse as a tire graded 100. The relative per-formance of tires depends upon the actualconditions of their use, however, and manydepart significantly from the norm due to var-iation in driving habits, maintenance practicesand differences in road characteristics andclimate.
TRACTIONThe traction grades, from highest to lowest,are AA, A, B, and C, as measured under con-trolled conditions on specified governmenttest surfaces of asphalt and concrete. A tiremarked C may have poor traction perform-ance. The traction grade assigned to this tireis based on braking (straight-ahead) tractiontests and is not a measure of cornering (turn-ing) traction.
WARNING
The traction grade assigned to this tire is based on braking (straight-ahead) tractiontests and is not a measure of cornering(turning) traction.
TEMPERATUREThe temperature grades are A (the highest), B, and C, representing the tire's resistance tothe generation of heat and its ability to dissi-pate heat when tested under controlled con-ditions on a specified indoor laboratory testwheel. Sustained high temperature can causethe material of the tire to degenerate andreduce tire life, and excessive temperaturecan lead to sudden tire failure. The grade Ccorresponds to a minimum level of perform-ance that all passenger vehicle tires mustmeet under the Federal Motor Safety Stand-ard No. 109. Grades B and A represent higherlevels of performance on the laboratory testwheel than the minimum required by law.
WARNING
The temperature grade for this tire is established for a tire that is properly infla-ted and not overloaded. Excessive speed,under-inflation, or excessive loading, eitherseparately or in combination, can causeheat buildup and tire failure.

11 Index
11
384
Detachable key blade.......................... 62, 65Dimensions XC70................................................... 372
Disconnecting the front passenger’s air-
bag....................................................... 26, 27
Dome lighting................................... 102, 103
Door mirrors............................................. 110
Driver alert............................................... 176
Driver distraction warning.......................... 13
Driving economically................................ 274
Driving in cold weather............................ 276
Driving through water.............................. 275
E
ECC......................................... 208, 210, 212
Eco guide................................................. 129
Economical driving.................................. 274
Electrically heated steering wheel............. 96
Electric parking brake.............................. 134
Electronic Climate Control....... 208, 210, 212 air distribution table............................ 213
Interior Air Quality System.................. 212
ventilated seats................................... 208 Emergency locking retractor...................... 38
Emergency starting.................................. 123
Emergency towing................................... 296
Emission inspection readiness................ 333Engine
overheating........................................... 82
specifications...................................... 374
starting................................................ 120
switching off....................................... 123
Engine compartment overview................ 335
Engine oil................................................. 375 checking............................................. 336
low pressure warning light.................... 81
volumes.............................................. 376
Engine remote start (ERS)........................ 122
Environment............................................... 12
Eyelets for anchoring loads..................... 285
F
Federal Clean Air Act............................... 332 Flat tires repairing with tire sealing system....... 316 Floor mats
cleaning.............................................. 366
placing correctly................................. 120
Floor rails................................................. 285
Fluid specifications.................................. 376
Fog lights................................................... 81 front, changing bulbs.......................... 344
rear...................................................... 101
Four C (active chassis system)................ 222
Front airbags.............................................. 22 disconnecting passenger’s side air-
bag.................................................. 26, 27
Front fog lights changing bulbs................................... 344
Front park assist.............................. 182, 184
Front seats........................................... 88, 90 heated................................................. 208
Fuel filler cap........................................... 281
Fuel filler door, opening........................... 280
Fuel level warning light.............................. 81
Fuel requirements............................ 278, 279
Fuel tank volume..................................... 376
Fuses....................... 354, 355, 358, 361, 362

11 Index
11
389
Supplemental restraint system.................. 21
warning light......................................... 82
Symbols, overview................................... 378
T
Tailgate driving with it open............................. 274
locking/unlocking.................................. 70
power operated.................................. 283
wiper/washer...................................... 106
Tailgate wipers......................................... 348
Taillights, changing bulbs........................ 344Temperature sensor ambient................................................. 84
Temporary spare tire............................... 315
Three-way catalytic converter................. 281
Tire designations..................................... 308
Tire inflation pressure.............................. 307
Tire Pressure Monitoring System.... 325, 326 indicator light........................................ 81
Tires......................................................... 302 age...................................................... 302
changing from summer to winter........ 303
glossary of terms................................ 310 improving economy............................ 303
inflation pressure................................ 305
inflation pressure table....................... 307
load ratings......................................... 306
rotation............................................... 302
Self-supporting run flat tires (SST)..... 327
snow................................................... 314
spare................................................... 315
specifications...................................... 306
speed ratings...................................... 306
storing................................................. 304
studded............................................... 314
tire pressure monitoring system......... 325
tire sealing system.............................. 316
tread wear indicator............................ 303
uniform tire quality grading................. 313
Tire sealing system.................................. 316 Top tether anchors (child restraint sys-
tems).......................................................... 49
Touching up paint.................................... 366
Towing a trailer................................ 293, 294 trailer hitch.......................................... 294
Towing the vehicle................................... 296
Traction control........................................ 142
Trailer towing................................... 293, 294 trailer hitch.......................................... 294 Transmission
general description..................... 125, 126
Hill Start Assist................................... 125
oil........................................................ 376
shiftlock override................................ 128
Tread wear indicator................................ 303
Trip computer.......................................... 215
Trip odometers.......................................... 84
Trips, long distance................................. 276
Tunnel detection...................................... 100
Turn signals............................................. 102 changing bulbs................................... 343
indicator lights...................................... 81
Two-stage booster cushion....................... 50
U
Uniform Tire Quality Grading................... 313
Unlocking the tailgate................................ 70
Unlocking the vehicle.......................... 59, 69
Upholstery care....................................... 364