2016 TOYOTA iM wheel

3098-1. Specifications
8
Vehicle specifications
Scion iM_U (12J49U)n
Typical tire size information
The illustration in
dicates 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)
nTire dimensions
Section width
Tire height
Wheel diameter
Tire size
1
2
3
4
5
6
7
1
2
3

3128-1. Specifications
Scion iM_U (12J49U)n
Temperature A, B, C
The temperature grades are A (the hi
ghest), B, and C, representing
the tire’s resistance to the generation of heat and its ability to dissi-
pate heat when tested under cont rolled 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.
Grade C corresponds to a level of performance which all passenger
car tires must meet under the Federal Motor Vehicle Safety Stan-
dard No. 109.
Grades B and A represent higher le vels of performance on the labo-
ratory test wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly
inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either sepa-
rately or in combination, can cause heat buildup and possible tire
failure.

3148-1. Specifications
Scion iM_U (12J49U)
Production options
weight
The combined weight of installed regular pro-
duction 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
Rim
A 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 deter-
mined 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 deter-
mined by distributing to each axle its share of
curb weight, accessory weight, and normal
occupant weight (distributed in accordance
with Table 1
* below), and dividing by two
Weather sideThe surface area of the rim not covered by the
inflated tire
Bead
The part of the tire that is made of steel wires,
wrapped or reinforced by ply cords and that is
shaped to fit the rim
Bead separationA breakdown of the bond between compo-
nents in the bead
Tire related termMeaning

3168-1. Specifications
Scion iM_U (12J49U)
Light truck (LT) tire
A tire designated by its manufacturer as pri-
marily intended for use on lightweight trucks
or multipurpose passenger vehicles
Load ratingThe maximum load that a tire is rated to carry
for a given inflation pressure
Maximum load ratingThe load rating for a tire at the maximum per-
missible inflation pressure for that tire
Maximum permissible
inflation pressureThe maximum cold inflation pressure to which
a tire may be inflated
Measuring rimThe rim on which a tire is fitted for physical
dimension requirements
Open spliceAny parting at any junction of tread, sidewall,
or innerliner that extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors of
the sidewalls of an inflated tire, including ele-
vations due to labeling, decorations, or protec-
tive bands or ribs
Passenger car tire
A tire intended for use on passenger cars,
multipurpose passenger vehicles, and trucks,
that have a gross vehicle weight rating
(GVWR) of 10,000 lb. or less.
PlyA layer of rubber-coated parallel cords
Ply separationA parting of rubber compound between adja-
cent plies
Pneumatic tire
A mechanical device made of rubber, chemi-
cals, fabric and steel or other materials, that,
when mounted on an automotive wheel, pro-
vides 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 corre-
sponding standard tire
Tire related termMeaning

3178-1. Specifications
8
Vehicle specifications
Scion iM_U (12J49U)
*: Table 1  Occupant loading and distribution for vehicle normal load for
various designated seating capacities
Section width
The linear distance between the exteriors of
the sidewalls of an inflated tire, excluding ele-
vations due to labeling, decoration, or protec-
tive 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
Test rim
The rim on which a tire is fitted for testing, and
may be any rim listed as appropriate for use
with that tire
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
Tire related termMeaning

341What to do if... (Troubleshooting)
Scion iM_U (12J49U)
lVehicles with a manual transmission:
Do you turn the key with the clutch pedal depressed firmly?
( P. 128)
lVehicles with a continuously variable transmission:
Is the shift lever in P? ( P. 128)
lIs the steering wheel unlocked? ( P. 129)
lIs the battery discharged? (P. 285)
lIs the engine switch in the “ON” position?
If you cannot release the shift lever by depressing the brake pedal with the
engine switch in the “ON” position. ( P. 284)
lIt is locked to prevent theft of the vehicle if the key is pulled from the engine
switch. (P. 128)
lIs the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( P. 106)
If you think something is wrong
The engine does not start
The shift lever cannot be shifted from P even if you depress
the brake pedal (vehicles with a continuously variable trans-
mission)
The steering wheel cannot be turned after the engine is
stopped
The windows do not open or close by operating the power
window switches

344Alphabetical index
Scion iM_U (12J49U)
Care................................... 190, 193Aluminum wheels.................. 190
Exterior ................................. 190
Interior................................... 193
Seat belts .............................. 194
Cargo capacity ......................... 123
Cargo hooks............................. 181
Chains....................................... 163
Child restraint system ............... 52 Booster seats, definition ......... 53
Booster seats, installation ....... 61
Convertible seats, definition ............................... 53
Convertible seats,
installation ............................ 60
Infant seats, definition ............. 53
Infant seats, installation .......... 59
Installing CRS with LATCH anchors................................. 57
Installing CRS with seat
belts ...................................... 59
Installing CRS with top tether strap ..................................... 62 Child safety ................................ 51
Airbag precautions.................. 35
Battery precautions....... 217, 287
Child restraint system ............. 52
How your child should wear
the seat belt.......................... 28
Installing child restraints ......... 56
Power window lock switch .... 106
Power window precautions ... 108
Rear door child-protectors ...... 90
Removed wireless remote control
battery precautions............. 238
Seat belt extender
precautions........................... 31
Seat belt precautions .............. 30
Child-protectors ........................ 90
Cleaning ........................... 190, 193
Aluminum wheels ................. 190
Exterior ................................. 190
Interior .................................. 193
Seat belts.............................. 194
Clock......................................... 185
Condenser................................ 214
Console box ............................. 177
Continuously variable transmission.......................... 131
If the shift lever cannot be shifted from P ..................... 284
M mode................................. 133
Cooling system........................ 212 Engine overheating............... 288
Cruise control .......................... 151
Cup holders ............................. 179
Curtain shield airbags............... 33
Customizable features ............ 319
C

352Alphabetical index
Scion iM_U (12J49U)
Snow tires ................................ 163
Spare tire .................................. 272Inflation pressure .................. 301
Storage location .................... 273
Spark plug ................................ 298
Specifications .......................... 294
Speedometer .............................. 74
Steering lock
Column lock release ............. 129
Steering wheel ......................... 101 Adjustment ............................ 101
Audio switches ...................... 188
Stop lights Replacing light bulbs............. 247
Wattage ................................ 302
Storage feature ........................ 176
Stuck If the vehicle becomes stuck ................................... 291
Sun visors ................................ 185 Switches
Audio remote control
switches ............................. 188
Cruise control switch ............ 151
Door lock switches.................. 89
Emergency flashers switch ................................. 252
Engine switch ....................... 128
Ignition switch ....................... 128
Light switches ....................... 139
Meter control switches ............ 78
Outside rear view mirror
switches ............................. 104
Power door lock switch ........... 89
Power window switches........ 106
Rear window and outside rear view mirror
defoggers switch ................ 169
Sport mode switch ................ 132
Talk switch ............................ 188
Telephone switches ............................. 188
Tire pressure warning reset
switch ................................. 222
“TRIP” switch .......................... 77
VSC OFF switch ................... 157
Window lock switch .............. 106
Windshield wiper and washer switch..................... 143