Scion tC. Instruction - part 25

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5-2. Steps to take in an emergency

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SRS warning light

This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front), side impact sensors (rear), side impact
sensors (front door), driver’s seat position sensor, driver’s seat belt buckle
switch, front passenger occupant classification system (ECU and sensors),
“AIR BAG ON” indicator light, “AIR BAG OFF” indicator light, front passen-
ger’s seat belt buckle switch, seat belt pretensioners, airbags, interconnect-
ing wiring and power sources. (

P. 108)

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Front passenger detection sensor, passenger seat belt reminder and
warning buzzer

●

If luggage is placed on the front passenger seat, the front passenger
detection sensor may cause the warning light to flash and the warning
buzzer to sound even if a passenger is not sitting in the seat.

●

If a cushion is placed on the seat, the sensor may not detect a passen-
ger, and the warning light may not operate properly.

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Electric power steering system warning light (warning buzzer)

The electric power steering system warning light may come on and warning
buzzer may sound when the voltage is low or drops.

■

If the malfunction indicator lamp comes on while driving

First check the following:

●

Is the fuel tank empty?
If it is, fill the fuel tank immediately.

●

Is the fuel tank cap loose?
If it is, tighten it securely.

The malfunction indicator lamp will go off after taking driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Scion dealer as soon as possible.

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5-2. Steps to take in an emergency

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When the tire pressure warning light comes on (U.S.A. only)

Check the tire inflation pressure and adjust to the appropriate level.
Pushing the tire pressure warning reset switch will not turn off the tire
pressure warning light.

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The tire pressure warning light may come on due to natural causes
(U.S.A. only)

The tire pressure warning light may come on due to natural causes such
as natural air leaks and tire inflation pressure changes caused by tem-
perature. In this case, adjusting the tire inflation pressure will turn off the
warning light (after a few minutes).

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When a tire is replaced with a spare tire (U.S.A. only)

The compact spare tire is not equipped with a tire pressure warning
valve and transmitter. If a tire goes flat, the tire pressure warning light will
not turn off even though the flat tire has been replaced with the spare
tire. Replace the spare tire with the repaired tire and adjust the tire infla-
tion pressure. The tire pressure warning light will go off after a few min-
utes.

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If the tire pressure warning system is not functioning (U.S.A. only)

The system will be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)

●

If tires not equipped with tire pressure warning valves and transmit-
ters are used.

●

If the ID code on the tire pressure warning valves and transmitters is
not registered in the tire pressure warning computer.

●

If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm

2

 or bar) or

higher.

The tire pressure warning system may be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)

●

If electronic devices or facilities using similar radio wave frequencies
are nearby.

●

If a radio set at a similar frequency is in use in the vehicle.

●

If a window tint that affects the radio wave signals is installed.

●

If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings.

●

If non-genuine Scion wheels are used. (Even if you use Scion
wheels, the tire pressure warning system may not work properly with
some types of tires.)

●

If tire chains are used.

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If the tire pressure warning light frequently comes on after blinking
for 1 minute (U.S.A. only)

If the tire pressure warning light frequently comes on after blinking for
1 minute when the engine switch is turned to the “ON” position (vehicles
without a smart key system), “ENGINE START STOP” switch is turned to
IGNITION ON mode (vehicles with a smart key system), have it checked
by your Scion dealer.

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Customization that can be configured at Scion dealer

The vehicle speed linked seat belt reminder buzzer can be disabled. (Cus-
tomizable features (

P. 462) However, Scion recommends that the seat belt

reminder buzzer be operational to alert the driver and front passenger when
seat belts are not fastened.

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5-2. Steps to take in an emergency

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CAUTION

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When the electric power steering system warning light comes on

The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.

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If the tire pressure warning light comes on (U.S.A. only)

Be sure to observe the following precautions. Failure to do so could
cause a loss of vehicle control and result in death or serious injury.

●

Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.

●

If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is probable that you have a flat tire. Check the tires.
If a tire is flat, change it with the spare tire and have the flat tire
repaired by the nearest Scion dealer.

●

Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.

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If a blowout or sudden air leakage should occur (U.S.A. only)

The tire pressure warning system may not activate immediately.

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CAUTION

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Maintenance of the tires (U.S.A. only)

Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation pressure
label (tire and load information label). (If your vehicle has tires of a differ-
ent size than the size indicated on the vehicle placard or tire inflation
pressure label [tire and load information label], you should determine the
proper tire inflation pressure for those tires.)

As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS-tire pressure warning system) that
illuminates a low tire pressure telltale (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Accordingly,
when the low tire pressure telltale (tire pressure warning light) illumi-
nates, you should stop and check your tires as soon as possible, and
inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire tread life, and may
affect the vehicle’s handling and stopping ability.

Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper tire maintenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has not reached the
level to trigger illumination of the TPMS low tire pressure telltale (tire
pressure warning light).

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CAUTION

Your vehicle has also been equipped with a TPMS (tire pressure warning
system) malfunction indicator to indicate when the system is not operat-
ing properly. The TPMS (tire pressure warning system) malfunction indi-
cator is combined with the low tire pressure telltale (tire pressure
warning light). When the system detects a malfunction, the telltale will
flash for approximately one minute and then remain continuously illumi-
nated. This sequence will continue upon subsequent vehicle start-ups as
long as the malfunction exists. When the malfunction indicator is illumi-
nated, the system may not be able to detect or signal low tire pressure
as intended.

TPMS (tire pressure warning system) malfunctions may occur for a vari-
ety of reasons, including the installation of replacement or alternate tires
or wheels on the vehicle that prevent the TPMS (tire pressure warning
system) from functioning properly. Always check the TPMS (tire pres-
sure warning system) malfunction telltale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alter-
nate tires and wheels allow the TPMS (tire pressure warning system) to
continue to function properly.

NOTICE

■

To ensure the tire pressure warning system operates properly
(U.S.A. only)

Do not install tires with different specifications or makers, as the tire
pressure warning system may not operate properly.

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5-2. Steps to take in an emergency

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If you have a flat tire

Your vehicle is equipped with a spare tire. The flat tire can be

replaced with the spare tire.

■

Before jacking up the vehicle
● Stop the vehicle on a hard, flat surface.
● Set the parking brake.
● Shift the shift lever to P (automatic transmission) or R (instruction

transmission).

● Stop the engine.
● Turn on the emergency flashers.

■

Location of the spare tire, jack and tools

Jack handle

Jack

Wheel nut 

wrench

Spare tire

Towing eyelet

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Taking out the jack

Remove the luggage mat.

Take out the jack.

For loosening

For tightening

STEP 

1 

STEP 

2 

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Taking out the spare tire

Remove the luggage mat. (

P. 395)

Remove the tool tray.

Loosen the center fastener that
secures the spare tire.

STEP 

1 

STEP 

2 

STEP 

3 

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Replacing a flat tire

Chock the tires.

Slightly loosen the wheel nuts
(one turn).

STEP 

1 

Flat tire

Wheel chock positions

Front

Left-hand side

Behind the rear right-hand side tire

Right-hand side

Behind the rear left-hand side tire

Rear

Left-hand side

In front of the front right-hand side tire

Right-hand side

In front of the front left-hand side tire

STEP 

2 

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Turn the tire jack portion “A” by
hand until the notch of the jack is
in contact with the jack point.

The jack point guides are
located under the rocker panel.
They indicate the jack point
positions.

Raise the vehicle until the tire is
slightly raised off the ground.

Remove all the wheel nuts and
the tire.

When resting the tire on the
ground, place the tire so that the
wheel design faces up to avoid
scratching the wheel surface.

STEP 

3 

STEP 

4 

STEP 

5 

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Installing the spare tire

Remove any dirt or foreign mat-
ter from the wheel contact sur-
face.

If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is
in motion, causing the tire to
come off.

Install the spare tire and loosely
tighten each wheel nut by hand
by approximately the same
amount.

Tighten the wheel nuts until the
tapered portion comes into
loose contact with the disc
wheel seat.

Lower the vehicle.

STEP 

1 

STEP 

2 

Tapered portion

Disc wheel 

seat

STEP 

3 

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Firmly tighten each wheel nut
two or three times in the order
shown in the illustration.

Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)

Stow the flat tire, tire jack and all tools.

Stowing the flat tire

Before stowing the flat tire,
remove the center wheel orna-
ment by pushing from the
reverse side.

Put the flat tire on the center of
the luggage mat with the outer
side of the wheel facing up. Hook
the end of the belt to either rear
cargo hook.

STEP 

4 

STEP 

5 

STEP 

1 

STEP 

2 

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Pass the belts from between the
wheel spokes through the cen-
ter hole of the wheel.

Hook the other end of the belt to
the front cargo hook located
diagonally to the used rear hook.

STEP 

3 

STEP 

4 

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Jack point guide

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When storing the luggage mat

The jack point guides are located under
the rocker panel. They indicate the jack
point positions.

Hold the luggage mat as shown.