TOYOTA xB 2004 Owners Manual (in English)

125 This illustration indicates typical tire
symbols.
1. Tire size—For details, see “Tire
size” on page 127.
2. DOT and Tire Identification
Number (TIN)—For details, see
“DOT and Tire Identification Num-
ber (TIN)” on page 126.
3. Tire ply composition and materi-
als—Plies mean a layer of rubber−
coated parallel cords. Cords mean
the strands forming the plies in the
tire.
4. Location of tread wear indica-
tors—For details, see “Checking
and replacing tires” on page 198.
5. Summer tire or all season tire—
An all season tire has “M+S” on
the sidewall. The tire not marked
with “M+S” is a summer tire. For
details, see “Types of tires” on
page 136.
6. Radial tires or biasply tires—A
radial tire has “RADIAL” on the
sidewall. A tire not marked with
“RADIAL” is a bias−ply tir e.
Tire information—
—Tire symbols
21A005a

126 7. “TUBELESS” or “TUBE TYPE”
—A tubeless tire does not have a
tube inside the tire and air is direct-
ly filled in the tire. A tube type tire
has a tube inside the tire and the
tube maintains the air pressure.
8. Uniform tire quality grad-
ing—For details, see “Uniform tire
quality grading” that follows.
9. Load limit at maximum cold tire
inflation pressure—For details,
see “Checking and replacing tires”
on page 198.
10. Maximum cold tire inflation
pressure—This means the pres-
sure to which a tire may be in-
flated. For details about recom-
mended cold tire inflation pressure,
see “Tires” on page 217.
21A009a
This illustration indicates typical DOT
and Tire Identification Number (TIN).
1. “DOT” symbol
2. Tire Identification Number (TIN)
3. Tire manufacturer ’s identification
mark
4. Tire size code
5. Manufacturer ’s optional tire type
code
6. Manufacturing week
7. Manufacturing yearThe “DOT” symbol certifies that the
tire conforms to applicable Federal
Motor Vehicle Safety Standards.
—DOT and Tire Identification
Number (TIN)

127
21A010a
This illustration indicates typical tire
size.
1. Tire use (P=Passenger car,
T=Temporary use)
2. Section width (in millimeters)
3. Aspect ratio (tire height to section
width)
4. Tire construction code (R=Radial,
D=Diagonal)
5. Wheel diameter (in inches)
6. Load index (2 digits or 3 digits)
7. Speed symbol (alphabet with one
letter)
21A007a
1. Section width
2. Tire height
3. Wheel diameter
21A006a
1. Bead
2. Sidewall
3. Shoulder
4. Tread
5. Belt
6. Inner liner
7. Reinforcing rubber
8. Carcass
9. Rim lines
10. Bead wires
11. Chafer
—Tire size —Name of each section of tire

128
—Uniform tire quality grading
This information has been prepared
in accordance with regulations issued
by the National Highway Traffic Safe-
ty Administration of the U.S. Depart-
ment of Transportation. It provides
the purchasers and/or prospective
purchasers of Scion vehicles with in-
formation on uniform tire quality grad-
ing.
Your Scion dealer will help answer
any questions you may have as you
read this information.
DOT quality grades—All passenger
vehicle tires must conform to Fed-
eral Safety Requirements in addi-
tion to these grades. Quality
grades can be found where appli-
cable on the tire sidewall between
tread shoulder and maximum sec-
tion width.
For example:
Treadwear 200 Traction AA
Temperature ATreadwear—The treadwear grade is
a comparative rating based on the
wear rate of the tire when tested un-
der controlled conditions on a speci-
fied government test course. For ex-
ample, 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 hab-
its, 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 ability to stop on wet pave-
ment as measured under controlled
conditions on specified government
test surfaces of asphalt and concrete.
A tire marked C may have poor trac-
tion performance.
Warning: The traction grade assigned
to this tire is based on braking
(straight ahead) traction tests and
does not include cornering (turning)
traction.

129 Temperature A, B, C—T he tem per a-
ture grades are A (the highest), B,
and C, representing the tire’s resis-
tance 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 cor-
responds 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 per-
formance on the laboratory test wheel
than the minimum required by law.
Warning: The temperature grades for
this tire are established for a tire that
is properly inflated and not over-
loaded. Excessive speed, underinfla-
tion, or excessive loading, either sep-
arately or in combination, can cause
heat buildup and possible tire failure.

130Ti r e relat ed ter m
Meaning
Accessory weight
the combined weight (in excess of those standard items which may be replaced)
of automatic transmission, power steering, power brakes, power windows, pow-
er seats, radio, and heater, to the extent that these items are available as
factory−installed equipment (whether installed or not)
Cold tire inflation pressure
tire inflation pressure when the vehicle has been parked for at leas t 3 hour s
or more, or it has not been driven more than 1.5 km or 1 mile under that
condition
Curb weight
the weight of a motor vehicle with standard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so equipped, air conditioning and addi-
tional weight optional engine
Intended outboard sidewall
(A) the sidewall that contains a whitewall, bears white lettering or bears
manufacturer, brand, and/or model name molding that is higher or deeper
than the same molding on the other sidewall of the tire, or
(B) the outward facing sidewall of an asymmetrical tire that has a particular
side that must always face outward when mounted on a vehicle
Maximum inflation pressurethe maximum cold inflation pressure to which a tire may be inflated and it is
shown on the sidewall of the tire
Maximum loaded vehicle weight
t he sum of —
(a) curb weight;
(b) accessory weight;
(c) vehicle capacity weight; and
(d) production options weight
—Glossary of tire terminology

131 Ti r e relat ed ter m
Meaning
Normal occupant weight68 kg (150 lb.) 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 that follows
Production options weight
the combined weight of those installed regular production options weighing over
2.3 kg (5 lb.) in excess of those standard items which they replace, not pre-
viously considered in curb weight or accessory weight, including heavy duty
brakes, ride levelers, roof rack, heavy duty battery, and special trim
Recommended inflation pressurecold tire inflation pressure recommended by a manufacturer
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 of manufacturer ’s designation for a rim by style or code
Rim widt hnominal distance between rim flanges
Vehicle capacity weight
(Total load capacity)the rated cargo and luggage load plus 68 kg (150 lb.) times the vehicle’s desig-
nated seating capacity
Vehicle maximum load on the tirethe 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

132Ti r e relat ed ter m
Meaning
Vehicle normal load on the tire
the load on an individual tire that is determined by distributing to each axle
its share of the curb weight, accessory weight, and normal occupant weight
(distributed in accordance with Table 1 that follows) and dividing by two
Weather sidethe surface area of the rim not covered by the inflated tire
Table 1—Occupant loading and distribution for vehicle normal load for various designated seating capacities
Designated seating capacity, number
of occupants
Vehicle normal load, number of occu-
pantsOccupant distribution in a normally
loaded vehicle
2 through 422 in front
5 through 1032 in front, 1 in second seat

133 Vehicle load limits include total load
capacity, seating capacity, towing ca-
pacity and cargo capacity. Follow the
load limits shown below.
Total load capacity:
375 kg (825 lb.)
Total load capacity means combined
weight of occupants, cargo and lug-
gage. Tongue load is included when
trailer towing.
Seating capacity:
Total 5 (Front 2, Rear 3)
Seating capacity means the maximum
number of occupants whose esti-
mated average weight is 68 kg (150
lb.) per person. Depending on the
weight of each person, the seating ca-
pacity given may exceed the total
load capacity.
NOTICE
Even if the number of occupants
are within the seating capacity,
do not exceed the total load ca-
pacity.
Towing capacity
Scion does not recommend towing a
trailer with your vehicle. Your vehicle
is not designed for trailer towing.
Cargo capacity
Cargo capacity may increase or de-
crease depending on the size (weight)
and the number of occupants. For de-
tails, see “Capacity and distribution”
that follows.
CAUTION
Do not apply the load more than
each load limit. That may cause
not only damage to the tires, but
also deterioration to the steering
ability and braking ability, which
may cause an accident.
When stowing cargo and luggage in
the vehicle, observe the following:
Put cargo and luggage in the lug-
gage compartment when at all
possible. Be sure all items are se-
cured in place.
Be careful to keep the vehicle bal-
anced. Locating the weight as far
forward as possible helps maintain
balance.
For better fuel economy, do not
carry unneeded weight.
CAUTION
To prevent cargo and luggage
from sliding forward during
braking, do not stack anything
in the luggage compartment.
Keep cargo and luggage low,
as close to the floor as pos-
sible.
Vehicle load limitsCargo and luggage—
—Stowage precautions

134
Never allow anyone to ride in
the luggage compartment. It is
not designed for passengers.
They should ride in their seats
with their seat belts properly
fastened. Otherwise, they are
much more likely to suffer seri-
ous bodily injury, in the event
of sudden braking or a colli-
sion.
Do not drive with objects left
on top of the instrument panel.
They may interfere with the
driver’s field of view. Or they
may move during sudden ve-
hicle acceleration or turning,
and impair the driver’s control
of the vehicle. In an accident
they may injure the vehicle oc-
cupants.Cargo capacity depends on the to-
tal weight of the occupants.
(Cargo capacity) = (Total load capac-
ity) – (Total weight of occupants)
STEPS FOR DETERMINING COR-
RECT LOAD LIMIT
1. Locate the statement “The com-
bined weight of occupants and car-
go should never exceed XXX
pounds” on your vehicle’s placard.
2. Determine the combined weight of
the driver and passengers that will
be riding in your vehicle.
3. Subtract the combined weight of
the driver and passengers from
XXX kilograms or XXX pounds.4. The resulting figure equals the
available amount of cargo and lug-
gage load capacity. For example,
if the “XXX” amount equals 1400
lbs. and there will be five 150 lb.
passengers in your vehicle, the
amount of available cargo and lug-
gage load capacity is 650 lbs.
(1400–750 (5x150)=650 lbs).
5. Determine the combined weight of
luggage and cargo being loaded on
the vehicle. That weight may not
safely exceed the available cargo
and luggage load capacity calcu-
lated in Step 4.
—Capacity and distribution