2011 VOLVO S60 traction control

07 Wheels and tires
Uniform Tire Quality Grading
07
269 Quality grading information
ALL PASSENGER VEHICLE TIRES MUST
CONFORM TO FEDERAL SAFETY
REQUIREMENTS IN ADDITION TO THESE
GRADES
Quality grades can be found, where appli-
cable, on the tire sidewall between the tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature A
TREADWEARThe treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course. For example, a tire gra-
ded 150 would wear one and one half (1 1/2)
times as well on the government course as a
tire graded 100. The relative performance of
tires depends upon the actual conditions of
their use, however, and many depart signifi-
cantly from the norm due to variation in driving
habits, maintenance practices and differences
in road characteristics and climate.
TRACTIONThe traction grades, from highest to lowest, are
AA, A, B, and C, as measured under controlled
conditions on specified government test sur-
faces of asphalt and concrete. A tire marked Cmay have poor traction performance. The trac-
tion grade assigned to this tire is based on
braking (straight-ahead) traction tests and is
not a measure of cornering (turning) traction.
WARNING
The traction grade assigned to this tire is
based on braking (straight-ahead) traction
tests and is not a measure of cornering
(turning) traction.
TEMPERATUREThe temperature grades are A (the highest), B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and reduce
tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds
to a minimum level of performance that all pas-
senger vehicle tires must meet under the Fed-
eral Motor Safety Standard No. 109. Grades B
and A represent higher levels of performance
on the laboratory test wheel than the minimum
required by law.
WARNING
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, under-
inflation, or excessive loading, either sepa-
rately or in combination, can cause heat
buildup and tire failure.

10 Index
10
333
Bulbs
headlights...........................294, 295, 296
introduction......................................... 294
license plate lights.............................. 298
specifications...................................... 299
trunk lighting....................................... 298
C
Camera, Park Assist................................ 178
Capacity weight....................................... 267
Catalytic converter................................... 245
Cell phone, hands-free connection......... 221
Cell phone voice control.......................... 229
Central locking system, introduction......... 54
Chains...................................................... 270
Check engine light..................................... 76
Child restraints
recalls and registration......................... 50
Child restraint systems.............................. 41
booster cushions.................................. 47
convertible seats.................................. 45
infant seats........................................... 43
ISOFIX/LATCH anchors........................ 48
top tether anchors................................ 49Child safety.......................................... 39, 40
booster cushions.................................. 47
child restraint systems.......................... 41
convertible seats.................................. 45
infant seats........................................... 43
Child safety locks...................................... 51
City Safety™............................................ 156
Climate system........................................ 134
air distribution............................. 130, 136
air vents.............................................. 131
Interior Air Quality System.................. 130
introduction......................................... 129
passenger compartment filter............ 130
refrigerant........................................... 129
Clock, setting............................................. 80
Cold weather driving................................ 240
Collision warning system.................162, 163
Compass in rearview mirror..................... 102
Conserving electrical current................... 239
Controls, center console.......................... 233
Convertible seats....................................... 45
Coolant............................................292, 326
Cooling system, general information....... 239
Corner Traction Control........................... 138
Courtesy lighting.................................. 93, 94Crash event data....................................... 11
Crash mode............................................... 38
Cruise control..................................141, 142
adaptive.............................................. 143
Curb weight............................................. 267
Current, conserving................................. 239D
Defroster.................................................. 134
Detachable key blade..........................59, 61
Disconnecting the front passenger’s air-
bag....................................................... 29, 30
Dome lighting....................................... 93, 94
Door mirrors............................................. 100
Driver alert............................................... 169
Driver distraction warning.......................... 14
Driving economically................................ 238
Driving in cold weather............................ 240
Driving through water..............................239

10 Index
10
338
Stability system...............................138, 139
Corner Traction Control (CTC)............138
Engine Drag Control (EDC).................138
indicator light........................................ 77
Starting the engine..................................108
with keyless drive...............................108
Starting the vehicle
after a crash (crash mode)....................38
Start inhibitor (immobilizer)........................ 55
Steering wheel
adjusting............................................... 89
horn....................................................... 89
keypad.................................. 89, 124, 197
Stone chips, touching up......................... 316
Storage spaces........................................ 186
Studded tires........................................... 270
Sunroof (moonroof).................................. 103
Sun shade.................................................. 99
Supplemental restraint system.................. 24
warning light......................................... 78
Symbols, overview................................... 328T
Temporary spare tire............................... 271
Three-way catalytic converter................. 245
Tire designations.....................................264
Tire Pressure Monitoring System....281, 282
indicator light........................................ 77
Tires.........................................................258
age...................................................... 258
changing from summer to winter........ 259
glossary of terms................................ 266
improving economy............................ 258
inflation pressure................................ 261
inflation pressure tables..................... 263
load ratings......................................... 262
rotation............................................... 259
snow...................................................270
spare................................................... 271
specifications...................................... 262
speed ratings...................................... 262
storing................................................. 259
studded............................................... 270
tire pressure monitoring system......... 281
tread wear indicator............................ 260
uniform tire quality grading................. 269
Top tether anchors (child restraint sys-
tems).......................................................... 49Touching up paint.................................... 316
Towing a trailer................................250, 251
trailer hitch.......................................... 251
Towing the vehicle........................... 253, 254
Traction control........................................ 138
Trailer towing...................................250, 251
trailer hitch.......................................... 251
Transmission
general description.....................111, 112
oil........................................................ 326
shiftlock override................................ 112
Tread wear indicator................................ 260
Trip computer.......................................... 137
Trip odometers.......................................... 80
Trips, long distance................................. 239
Trunk
changing bulbs................................... 298
driving with it open.............................238
Turn signals............................................... 93
indicator lights...................................... 77