Scion xB. Service Manual - part 16

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If you push the tire pressure warning reset button accidentally

If initialization is performed, adjust the tire inflation pressure to the speci-
fied level and initialize the tire pressure warning system again.

■

When the initialization of the tire pressure warning system has
failed

Initialization can be completed in a few minutes. However, in the follow-
ing cases, the settings have not been recorded and the system will not
operate properly. If repeated attempts to record tire inflation pressure
settings are unsuccessful, have the vehicle inspected by your Scion
dealer.

●

When operating the tire pressure warning reset button, the tire pres-
sure warning light does not blink 3 times.

●

After driving for a certain period of time since the initialization has
been completed, the warning light comes on after blinking for 1
minute.

■

Tire pressure warning system certification

FCC ID: PAXPMV107J

FCC ID: HYQ13BCX

For vehicles sold in the U.S.A.

This device complies with Part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.

FCC WARNING: 
Changes or modifications not expressly approved by the party responsi-
ble for compliance could void the user’s authority to operate the equip-
ment. 

For vehicles sold in Canada

Operation is subject to the following two conditions: (1) this device may
not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.

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CAUTION

■

When inspecting or replacing tires

Observe the following precautions to prevent accidents. 
Failure to do so may cause damage to parts of the drive train as well as
dangerous handling characteristics, which may lead to an accident
resulting in death or serious injury.

●

Do not mix tires of different makes, models or tread patterns. 
Also, do not mix tires of remarkably different treadwear.

●

Do not use tire sizes other than those recommended by Scion.

●

Do not mix differently constructed tires (radial, bias-belted or bias-ply
tires).

●

Do not mix summer, all season and snow tires.

●

Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.

●

Do not tow if your vehicle has a compact spare tire installed.

■

When initializing the tire pressure warning system

Do not operate the tire pressure warning reset button without first adjust-
ing the tire inflation pressure to the specified level. Otherwise, the tire
pressure warning light may not come on even if the tire inflation pressure
is low, or it may come on when the tire inflation pressure is actually nor-
mal.

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NOTICE

■

Repairing or replacing tires, wheels, tire pressure warning valves,
transmitters and tire valve caps

●

When removing or fitting the wheels, tires or the tire pressure warning
valves and transmitters, contact your Scion dealer as the tire pressure
warning valves and transmitters may be damaged if not handled cor-
rectly.

●

When replacing tire valve caps, do not use tire valve caps other than
those specified. The cap may become stuck.

■

To avoid damage to the tire pressure warning valves and transmit-
ters

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. 239)

■

Driving on rough roads

Take particular care when driving on roads with loose surfaces or pot-
holes.
These conditions may cause losses in tire inflation pressure, reducing
the cushioning ability of the tires. In addition, driving on rough roads may
cause damage to the tires themselves, as well as the vehicle’s wheels
and body.

■

If tire inflation pressure of each tire becomes low while driving

Do not continue driving, or your tires and/or wheels may be ruined.

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Tire inflation pressure

■

Tire inflation pressure

The recommended cold tire inflation pressure and tire size are
displayed on the tire and loading information label. (

P. 340)

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Tire inflation pressure check interval

You should check tire inflation pressure every two weeks, or at least
once a month.
Do not forget to check the spare.

■

Inspection and adjustment procedure

Tire valve

Tire pressure gauge

Remove the tire valve cap.

Press the tip of the tire pressure gauge onto the tire valve.

Read the pressure using the gauge gradations.

If the tire inflation pressure is not at the recommended
level, adjust the pressure.
If you add too much air, press the center of the valve to
deflate.

After completing the tire inflation pressure measurement
and adjustment, apply soapy water to the valve and check
for leakage.

Put the tire valve cap back on.

STEP 

1 

STEP 

2 

STEP 

3 

STEP 

4 

STEP 

5 

STEP 

6 

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Effects of incorrect tire inflation pressure

Driving with incorrect tire inflation pressure may result in the following:

●

Reduced fuel economy

●

Reduced driving comfort and poor handling

●

Reduced tire life due to wear

●

Reduced safety

●

Damage to the drive train

If a tire needs frequent inflating, have it checked by your Scion dealer.

■

Instructions for checking tire inflation pressure

When checking tire inflation pressure, observe the following:

●

Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been
driven for more than 1 mile or 1.5 km, you will get an accurate cold
tire inflation pressure reading.

●

Always use a tire pressure gauge.
It is difficult to judge if a tire is properly inflated based only on its
appearance.

●

It is normal for the tire inflation pressure to be higher after driving as
heat is generated in the tire. Do not reduce tire inflation pressure after
driving.

●

Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle
is balanced.

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CAUTION

■

Proper inflation is critical to save tire performance

Keep your tires properly inflated.
If the tires are not properly inflated, the following conditions may occur
which could lead to an accident resulting in death or serious injury:

●

Excessive wear

●

Uneven wear

●

Poor handling

●

Possibility of blowouts resulting from overheated tires

●

Air leaking from between tire and wheel

●

Wheel deformation and/or tire damage

●

Greater possibility of tire damage while driving (due to road hazards,
expansion joints, sharp edges in the road, etc.)

NOTICE

■

When inspecting and adjusting tire inflation pressure

Be sure to put the tire valve caps back on.
If a valve cap is not installed, dirt or moisture may get into the valve and
cause an air leak, resulting in decreased tire inflation pressure.

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Wheels

If a wheel is bent, cracked or heavily corroded, it should be

replaced.

Otherwise, the tire may separate from the wheel or cause a loss

of handling control.

■

Wheel selection

When replacing wheels, care should be taken to ensure that
they are equivalent to those removed in load capacity, diameter,
rim width, and inset

*

.

Replacement wheels are available at your Scion dealer.

*

: Conventionally referred to as “offset”.

Scion does not recommend using the following:

● Wheels of different sizes or types
● Used wheels
● Bent wheels that have been straightened

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When replacing wheels

The wheels of your vehicle are equipped with tire pressure warning
valves and transmitters that allow the tire pressure warning system to
provide advance warning in the event of a loss in tire inflation pressure.
Whenever wheels are replaced, tire pressure warning valves and trans-
mitters must be installed. (

P. 239)

CAUTION

■

When replacing wheels

●

Do not use wheels that are a different size from those recommended in
the Owner’s Manual, as this may result in a loss of handling control.

●

Never use an inner tube in a leaking wheel which is designed for a
tubeless tire. Doing so may result in an accident, causing death or seri-
ous injury.

■

When installing the wheel nuts

●

Never use oil or grease on the wheel bolts or wheel nuts. 
Oil and grease may cause the wheel nuts to be excessively tightened,
leading to bolt or disc wheel damage. In addition, the oil or grease can
cause the wheel nuts to loosen and the wheel may fall off, causing an
accident and resulting in death or serious injury. Remove any oil or
grease from the wheel bolts or wheel nuts.

●

Be sure to install the wheel nuts with
the tapered end facing inward. Install-
ing the nuts with the tapered end fac-
ing outward can cause wheel to
break and eventually cause a wheel
to come off while driving, which could
lead to an accident resulting in death
or serious injury.

Tapered
portion

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NOTICE

■

Replacing tire pressure warning valves and transmitters

●

Because tire repair or replacement may affect the tire pressure warn-
ing valves and transmitters, make sure to have tires serviced by your
Scion dealer or other qualified service shop. In addition, make sure to
purchase your tire pressure warning valves and transmitters at your
Scion dealer.

●

Ensure that only genuine Scion wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly
with non-genuine wheels. 

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Air conditioning filter

The air conditioning filter must be changed regularly to maintain air

conditioning efficiency.

■

Removal method

Turn the engine switch off.

Open the glove box. Slide off
the damper.

Push in each side of the glove
box to disconnect the claws.

Remove the filter cover.

STEP 

1 

STEP 

2 

STEP 

3 

STEP 

4 

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Remove the filter.

■

Replacement method

Replace the air conditioning
filter with a new one.

The 

“

UP” marks shown on

the filter should be pointing up.

STEP 

5 

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Checking interval

Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement
may be required. (For scheduled maintenance information, please refer to
the “Scheduled Maintenance Guide” or “Owner’s Manual Supplement”.)

■

If air flow from the vents decreases dramatically

The filter may be clogged. Check the filter and replace if necessary.

NOTICE

■

When using the air conditioning system

Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.

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Wireless remote control battery

Replace the battery with a new one if it is depleted.

■

You will need the following items:
● Flathead screwdriver 
● Lithium battery (CR2016)

■

Replacing the battery

Remove the cover.

To prevent damage to the key,
cover the tip of the screwdriver
with a rag.

Remove the module.

Remove the battery cover and
the depleted battery.

Insert a new battery with the
“+” terminal facing up.

STEP 

1 

STEP 

2 

STEP 

3 

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Use a CR2016 lithium battery

●

Batteries can be purchased at your Scion dealer, local electrical appli-
ance shops or camera stores.

●

Replace only with the same or equivalent type recommended by the
manufacturer.

●

Dispose of used batteries according to local laws.

■

If the key battery is depleted

The following symptoms may occur:

●

The wireless remote control will not function properly.

●

The operational range will be reduced.

CAUTION

■

Removed battery and other parts

These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.

NOTICE

■

For normal operation after replacing the battery

Observe the following precautions to prevent accidents:

●

Always work with dry hands.
Moisture may cause the battery to rust.

●

Do not touch or move any other component inside the remote control.

●

Do not bend either of the battery terminals.

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Checking and replacing fuses

If any of the electrical components do not operate, a fuse may have

blown. If this happens, check and replace the fuses as necessary.

Turn the engine switch off.

Open the fuse box cover.

Engine compartment

Push the tab in and lift the lid
off.

Under the driver’s side instrument panel

Remove the lid.

STEP 

1 

STEP 

2