2009 TOYOTA SEQUOIA wheel

575
6-1. Specifications
6
Vehicle specifications
Tire size
■ Typical tire size information
The illustration indicates typical
tire size.
Tire use
(P = Passenger car,
T = Temporary use)
Section width (millimeters)
Aspect ratio
(tire height to section width)
Tire construction code
(R = Radial, D = Diagonal)
Wheel diameter (inches)
Load index (2 digits or 3 digits)
Speed symbol
(alphabet with one letter)
■ Tire dimensions
Section width
Tire height
Wheel diameter

577
6-1. Specifications
6
Vehicle specifications
■
Treadwear
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested und er controlled conditions on a
specified government test course.
For example, a tire graded 150 would wear one and a 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 may depart significantly from the norm due
to variations in driving habits, service practices and differences in
road characteristics and climate.
■ Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C,
and they represent the tire’s ab ility to stop on wet pavement as
measured under controlled cond itions on specified government
test surfaces of asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking
(straight ahead) traction tests and does not include cornering
(turning) traction.
■ Temperature A, B, C
The 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 level of performance which all
passenger car tires must meet under the Federal Motor Vehicle
Safety Standard No. 109.
Grades B and A represent higher levels of performance on the
laboratory test wheel than the minimum required by law.

579
6-1. Specifications
6
Vehicle specifications
Tire related termMeaning
Normal occupant
weight150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
* that
follows
Occupant distributionDistribution of occupants in a vehicle as
specified in the third column of Table 1
* below
Production options
weight
The combined weight of installed regular
production options weighing over 5 lb. (2.3 kg)
in excess of the standard items which they
replace, not previously considered in curb
weight or accessory weight, including heavy
duty brakes, ride levelers, roof rack, heavy duty
battery, and special trim
RimA metal support for a tire or a tire and tube
assembly upon which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer’s designation for a
rim by style or code
Rim widthNominal distance between rim flanges
Vehicle capacity
weight (Total load
capacity)The rated cargo and luggage load plus 150 lb.
(68 kg) times the vehicle’s designated seating
capacity
Vehicle maximum load
on the tire
The load on an individual tire that is determined
by distributing to each axle its share of the
maximum loaded vehicle weight, and dividing
by two
Vehicle normal load
on the tire
The load on an individual tire that is determined
by distributing to each axle its share of curb
weight, accessory weight, and normal
occupant weight (distr ibuted in accordance
with Table 1
* below), and dividing it by two

582 6-1. Specifications
Tire related termMeaning
PlyA layer of rubber-coated parallel cords
Ply separationA parting of rubber compound between
adjacent plies
Pneumatic tire
A mechanical device made of rubber,
chemicals, fabric and steel or other materials,
that, when mounted on an automotive wheel,
provides the traction and contains the gas or
fluid that sustains the load
Radial ply tire
A pneumatic tire in which the ply cords that
extend to the beads are laid at substantially 90
degrees to the centerline of the tread
Reinforced tire
A tire designed to operate at higher loads and
at higher inflation pressures than the
corresponding standard tire
Section width
The linear distance between the exteriors of
the sidewalls of an inflated tire, excluding
elevations due to labeling, decoration, or
protective bands
SidewallThat portion of a tire between the tread and
bead
Sidewall separationThe parting of the rubber compound from the
cord material in the sidewall
Snow tire
A tire that attains a traction index equal to or
greater than 110, compared to the ASTM E-
1136 Standard Reference Test Tire, when
using the snow traction test as described in
ASTM F-1805-00, Standard Test Method for
Single Wheel Driving Traction in a Straight Line
on Snow-and Ice-Covered Surfaces, and which
is marked with an Alpine Symbol ( ) on at
least one sidewall
Te s t r i m
The rim on which a tire is fitted for testing, and
may be any rim listed as appropriate for use
with that tire

583
6-1. Specifications
6
Vehicle specifications
*:Table 1
 Occupant loading and distri bution for vehicle normal load
for various designated seating capacities
Tire related termMeaning
TreadThat portion of a tire that comes into contact
with the road
Tread ribA tread section running circumferentially
around a tire
Tread separationPulling away of the tread from the tire carcass
Treadwear
indicators(TWI)The projections within the principal grooves
designed to give a visual indication of the
degrees of wear of the tread
Wheel-holding fixtureThe fixture used to hold the wheel and tire
assembly securely during testing
Designated seating
capacity, Number of occupants Vehicle normal load,
Number of occupantsOccupant distribution in a normally loaded vehicle
2 through 422 in front
5 through 1032 in front, 1 in second seat
11 through 155
2 in front, 1 in second
seat, 1 in third seat, 1 in fourth seat
16 through 207
2 in front, 2 in second
seat, 2 in third seat, 1 in fourth seat

596
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
2WDTwo Wheel Drive
4WD Four Wheel Drive ABS Anti-Lock Brake System
ACC Accessory
AI-SHIFT Artificial Intelligence shifting ALR Automatic Locking Retractor
A-TRAC Active Traction Control
AUTO LSD Automatic Limited Slip Differential AVS Adaptive Variable Suspension System
CRS Child Restraint System
ECU Electronic Control Unit
EDR Event Data Recorder ELR Emergency Locking Retractor
FFV Flexible Fuel Vehicle
GAWR Gross Axle Weight Rating
GCWR Gross Combination Weight Rating
GVWR Gross Vehicle Weight Rating I/M Emission inspection and maintenance
INFO Information
LATCH Lower Anchors and Tethers for Children LED Light Emitting DiodeLT Light truck
M + S Mud + Snow MMT Methylcy clopentadienyl Manganese Tricarbonyl
MTBE Methyl Tertiary Butyl Ether
OBD On Board Diagnostics
PWR Power

598
Alphabetical index
Alphabetical index
A/C ..................................... 260, 268
ABS ........................................... 221
Active traction control ............. 221
Adaptive variable suspension system .................................... 213
Air conditioning filter............... 479
Air conditioning system Air conditioning filter .............. 479
Front air conditioning system ................................ 260
Rear air conditioning system ................................ 268
Airbags
Airbag operating conditions............................ 110
Airbag precautions for your
child .................................... 114
Airbag warning light............... 519
Curtain shield airbag operating conditions............................ 110
Curtain shield airbag precautions ......................... 114
Front passenger occupant classification system ........... 120
General airbag
precautions ......................... 114
Locations of airbags .............. 107
Modification and disposal of airbags ................................ 118
Proper driving posture ........................ 105, 114
Side airbag operating conditions............................ 110
Side airbag precautions ........ 114
SRS airbags .......................... 107
Alarm ......................................... 102
Antenna..................................... 282
Anti-lock brake system............ 221
Armrest ..................................... 413
Ashtrays.................................... 399
A-TRAC ..................................... 221
Audio input ............................... 303 Audio system
A/V input adapter .................. 328
Antenna................................. 282
Audio input ............................ 303
Audio visual input .................. 328
AUX adapter ......................... 303
CD player/changer ................ 285
DVD player............................ 314
MP3/WMA disc ..................... 292
Optimal use ........................... 301
Portable music player ........... 303
Radio..................................... 279
Rear seat entertainment system ................................ 307
Steering wheel audio switch.................................. 305
Type ...................................... 276
Audio visual input.................... 328
AUTO LSD system ................... 219
Automatic light control system .................................... 181
Automatic
transmission .......................... 154
AUX adapter ............................. 303
Auxiliary box ........................... 392
A/V input adapter ..................... 328
AVS ........................................... 213
Back-up lights Replacing light bulbs ............. 495
Wattage................................. 568
Back door Back door ................................ 42
Wireless remote control .......... 33
Back window ........................... 90
Battery Checking ............................... 462
If the vehicle has discharged
battery................................. 546
Preparing and checking before
winter .................................. 237
Bluetooth
................................ 342
Bottle holder............................. 391
A
B

600 Alphabetical index
Door courtesy lightsDoor courtesy lights .............. 371
Wattage ................................. 568
Doors Back door ................................42
Door glasses ...........................88
Door lock ...........................33, 37
Side doors ...............................37
Side mirrors .............................82
Driver's seat belt reminder light ......................................... 520
Driving Break-in tips .......................... 143
Correct posture ..................... 105
Procedures ............................ 142
Winter driving tips.................. 237
Driving position memory...........61
DVD player ................................ 314
Electronically modulated air
suspension............................. 208
Emergency flashers
Switch.................................... 508
Emergency, in case of If the engine will not start ...... 542
If the shift lever cannot be
shifted ................................. 544
If the vehicle has discharged
battery ................................. 546
If the warning buzzer sounds ................................ 518
If the warning light turns on ........................................ 518
If the warning message is
displayed............................. 527
If you have a flat tire ............. 532
If you lose your keys ............. 545
If you think something is wrong .................................. 514
If your vehicle becomes
stuck ................................... 553
If your vehicle needs to be towed .................................. 509 If your vehicle overheats ....... 550
Engine
Compartment ........................ 450
Engine switch ........................ 151
Hood ..................................... 449
How to start the engine ................................. 151
Identification number............. 558
If the engine will not start ...... 542
Ignition switch ...................... 151
Overheating .......................... 550
Engine coolant Capacity ................................ 563
Checking ............................... 457
Preparing and checking before winter .................................. 237
Engine coolan t temperature
gauge ...................................... 161
Engine immobilizer system .... 100
Engine oil Capacity ................................ 561
Checking ............................... 452
Preparing and checking before winter .................................. 237
Engine oil maintenance data ......................................... 455
Engine switch........................... 151
Event data recorder ................. 516
FFV ...................................... 95, 569
Flex-fuel .............................. 95, 569
Flexible fuel vehicle ........... 95, 569
Floor mat .................................. 417
Fluid Brake..................................... 458
Washer.................................. 464
Fog lights
Replacing light bulbs ............. 495
Switch ................................... 183
Wattage................................. 568
Four-wheel drive system......... 214
Front air conditioning system .................................... 260
E
F