tires TOYOTA tC 2012 (in English) Owner's Guide

5
When trouble arises
389
5-2. Steps to take in an emergency
Scion_tC_U_(OM21041U)
■After completing the tire change (U.S.A. only)
The tire pressure warning
system must be reset. (P. 3 1 1 )
■When using the compact spare tire (U.S.A. only)
As the compact spare tire is not equipped with a tire pressure warning
valve and transmitter, low inflation pressure of the spare tire will not be
indicated by the tire pressure warn ing system. Also, if you replace the
compact spare tire after the tire pressure warning light comes on, the
light remains on.
■If you have a flat front tire on a road covered with snow or ice
Install the compact spare tire on one of the rear wheels of the vehicle.
Perform the following steps and fit tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with t he tire removed from the rear of
the vehicle.
Fit tire chains to the front tires.
STEP 1
STEP 2
STEP 3

5
When trouble arises
391
5-2. Steps to take in an emergency
Scion_tC_U_(OM21041U)
CAUTION
■Using the tire jack
Improper use of the tire jack may cause the vehicle to suddenly fall off
the jack, leading to death or serious injury.
●Do not use the tire jack for any pu
rpose other than replacing tires or
installing and removing tire chains.
●Only use the tire jack that comes wi th this vehicle for replacing a flat
tire. 
Do not use it on other vehicles, and do not use other tire jacks for
replacing tires on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle while it is supported
by the jack.
●Do not start or run the engine while your vehicle is supported by the
jack.
●Do not raise the vehicle while someone is inside.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a heigh t greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that no one
working on or near the vehicle may be injured.

394 5-2. Steps to take in an emergency
Scion_tC_U_(OM21041U)
NOTICE
■Do not drive the vehicle with a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a fl at tire can damage the tire and the
wheel beyond repair.
■Be careful when driving over bumps with the compact spare tire
installed on the vehicle
The vehicle becomes lower when driving with the compact spare tire
compared to when drivin g with standard tires. Be careful when driving
over uneven road surfaces.
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire. 
Tire chains may damage the vehicle body and adversely affect driving
performance.
■When replacing the tires (U.S.A. only)
When removing or fitting the wheels, tires or the tire pressure warning
valve and transmitter, contact your Scion dealer as the tire pressure
warning valve and transmitter may be damaged if not handled correctly.
■To avoid damage to the tire pressure warning valves and transmit-
ters (U.S.A. only)
When a tire is repaired with liquid sealants, the tire pressure warning
valve and transmitter may not operate properly. If a liquid sealant is
used, contact your Scion dealer or other qualified service shop as soon
as possible. Make sure to replace the tire pressure warning valve and
transmitter when replacing the tire. ( P. 3 1 1 )

5
When trouble arises
411
5-2. Steps to take in an emergency
Scion_tC_U_(OM21041U)
If the vehicle becomes stuck
CAUTION
■When attempting to free a stuck vehicle
If you choose to push the vehicle back and forth to free it, make sure the sur-
rounding area is clear to avoid striki ng other vehicles, objects or people. The
vehicle may also lunge forward or lu nge back suddenly as it becomes free.
Use extreme caution.
■ When shifting the shift lever (vehic les with an automatic transmission)
Be careful not to shift the shift lever with the accelerator pedal depressed. 
This may lead to unexpected rapid acceleration of the vehicle that may
cause an accident resulting in death or serious injury.
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Stop the engine. Set the parki ng brake and shift the shift
lever to P (automatic transmission) or N (manual transmis-
sion).
Remove the mud, snow or sand from around the stuck tire.
Place wood, stones or some other material under the tires
to help provide traction.
Restart the engine.
Shift the shift lever to the D or R position (automatic trans-
mission) or 1 or R position (manual transmission) and care-
fully apply the accelerator to free the vehicle. 
Turn off TRAC and VSC if these functions are hampering
your attempts to free the vehicle. ( P. 212)STEP 1
STEP 2
STEP 3
STEP 4
STEP 5

425
6-1. Specifications
6
Vehicle specifications
Scion_tC_U_(OM21041U)
Tires and wheels
17-inch tires
18-inch tires
Tire size P215/50R17 90W,

T145/80D16 105M (spare)
Front and rear tire inflation
pressure
(Recommended cold tire
inflation pressure) Front:
33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear:
30 psi (210 kPa, 2.1 kgf/cm
2 or bar)
Spare:
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size 17  7J, 16  4T (spare)
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire size P225/45R18 91W,

T145/80D16 105M (spare)
Front and rear tire inflation
pressure
(Recommended cold tire
inflation pressure) Front:
33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear:
30 psi (210 kPa, 2.1 kgf/cm
2 or bar)
Spare:
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size 18  7 1/2J, 16  4T (spare)
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)

431
6-1. Specifications
6
Vehicle specifications
Scion_tC_U_(OM21041U)
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the
strands which form the plies in a tire.
Summer tires or all season tires
( P. 316)
An all season tire has “M+S” on the sidewall. A tire not marked
“M+S” is a summer tire.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked
“RADIAL” is a bias-ply tire.
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly put into the
tire. A tube type tire has a tube inside the tire and the tube main-
tains the air pressure.
Load limit at maximum cold tire inflation pressure ( P. 315)
Maximum cold tire in flation pressure ( P. 425)
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
“TEMPORARY USE ONLY” ( P. 388)
A compact spare tire is identified by the phrase “TEMPORARY USE
ONLY” molded on its sidewall. This tire is designed for temporary
emergency use only.

434 6-1. Specifications
Scion_tC_U_(OM21041U)
Tire section namesBead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
Uniform Tire Quality GradingThis information has been prepared in accordance with regulations
issued by the National Highway Tr affic Safety Administration of the
U.S. Department of Transportation. 
It provides the purchasers and/or prospective purchasers of Scion
vehicles with information on uniform tire quality grading.
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 Federal Safety
Requirements in addition to these grades. Quality grades can be
found where applicable on the tire sidewall between tread shoulder
and maximum section width.
For example: Treadwear 200 Traction AA Temperature A

435
6-1. Specifications
6
Vehicle specifications
Scion_tC_U_(OM21041U)
■
Treadwear
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested under controlled conditions on a speci-
fied 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 de pends upon the actual conditions
of their use. Performance may diff er 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 conditions 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 (turn-
ing) traction.

436 6-1. Specifications
Scion_tC_U_(OM21041U)
■Temperature A, B, C
The temperature grades are A (the highest), B, and C, represent-
ing the tire’s resistance to the generation of heat and its ability to
dissipate heat when tested under controlled conditions on a speci-
fied 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 passen-
ger car tires must meet under the Federal Motor Vehicle Safety Stan-
dard No.109.
Grades B and A represent higher levels of performance on the labo-
ratory test wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that 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 fail-
ure.

469
Alphabetical index
Scion_tC_U_(OM21041U)
Maintenance
Do-it-yourself 
maintenance ...................... 285
General maintenance ........... 280
Maintenance data ................. 416
Maintenance requirements ... 277
Manual transmission .............. 183
Meter Instrument panel light 
control ................................ 190
Meters .................................. 188
Microphone .............................. 245
Mirrors
Inside rear view mirror ............ 86
Side mirror heater................. 242
Side mirrors ............................ 87
Vanity mirrors ....................... 257
Moon roof................................... 91
Noise from under vehicle ......... 20
Odometer ................................. 188
Oil
Engine oil.............................. 295
Opener Back door ............................... 62
Fuel filler door......................... 95
Hood ..................................... 290
Outside rear view mirrors
Adjusting and folding .............. 87
Outside temperature 
display ................................... 190
Overheating, Engine ............... 408 Parking brake ...........................186
Parking lights
Replacing light bulbs .............341
Switch....................................197
Wattage .................................426
Personal/interior lights
Personal/interior light ............247
Switch....................................248
Wattage .................................426
Power outlet .............................259
Power windows ..........................89
Radiator ....................................301
Rear seats Adjustment ..............................74
Folding down ...........................74
Seat adjustment ......................74
Rear side marker lights Replacing light bulb ...............341
Wattage .................................426
Rear turn signal lights
Replacing light bulbs .............341
Wattage .................................426
Rear window defogger ............242
Rear window wiper ..................204
Replacing Fuses ....................................330
Key battery ............................326
Light bulbs .............................341
Tires ......................................380
Wireless remote control 
battery .................................326
Reporting safety defects for 
U.S.A. owners ........................450
Reset the maintenance 
data .........................................278M
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