2014 TOYOTA IQ Owners Manual

233
4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
■Proper inflation is critical
to save tire performance
Keep your tires properly inflated. Otherwise, the following conditions
may occur and result in an accident causing death or serious injury.
●Excessive wear
●Uneven wear
●Poor handling
●Possibility of blowouts resu lting from overheated tires
●Poor sealing of the tire bead
●Wheel deformation and/or tire separation
●A greater possibility of tire damage from road hazards
NOTICE
■When inspecting and adjusting tire inflation pressure
Be sure to reinstall the tire valve caps.
Without the valve caps, dirt or mo isture could get into the valve and
cause air leakage, which could result in an accident. If the caps have
been lost, replace them as soon as possible.

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4-3. Do-it-yourself maintenance
Wheels
■When replacing wheels
The wheels of your Scion 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. When-
ever wheels are replaced, tire pressure warning valves and transmitters
must be installed. ( P. 223)
If a wheel is bent, cracked or heavily corroded, it should be
replaced.
Otherwise, the tire may separate from the wheel or cause 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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4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
■When replacing wheels
●Do not use wheels that are a different size from those recommended in
the Owner’s Manual, as this may re
sult in 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.
●Be sure to install the wheel nuts with the tapered end facing inward.
(  P. 209)
NOTICE
■Replacing tire pressure warning valves and transmitters
●Because tire repair or replacement may affect the tire pressure warn-
ing valves and transmitters, make su re to have tires serviced by your
Scion dealer or other qualified servic e 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.

236
4-3. Do-it-yourself maintenance
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to
maintain air conditioning efficiency.
■ Removal method
Turn the engine switch to the LOCK position.
Remove the filter cover.
Remove the air conditioning
filter from between the knee
airbag support and dash panel
insulator.
When removing the air condi-
tioning filter, make sure that
dust or dirt does not enter the
air conditioning system.
UP
E
Knee
airbag
support
Dash
panel
insulator

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4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Cleaning method
If the filter is dirty, clean by blowing compressed air through the
filter as shown in the illustration.
Ty p e A
Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at 72
psi (500 kPa, 5.0 kgf/cm
2 or
bar).
Ty p e B Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at 72
psi (500 kPa, 5.0 kgf/cm
2 or
bar).
If it is not available, have the filter cleaned by your Scion dealer.

238 4-3. Do-it-yourself maintenance
■Restoration method
Ty p e A
The“ UP” marks shown on
the filter should be pointing up.
■ Replacement method
Replace the air conditioning filter with a new one.
Ty p e B
The“ UP” marks shown on
the filter should be pointing up.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Checking interval
Inspect, clean and replace the air conditioning filter according to the mainte-
nance schedule. In dusty areas or areas with heavy traffic flow, more fre-
quent cleaning or 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.
●Type A: Check the filter and clean if necessary.
● Type B: Check the filter and replace if necessary.
NOTICE
■To prevent damage to the system
●When using the air conditioning system, make sure that a filter is always
installed.
● Type B: When cleaning the filter, do not clean the filter with water.

240
4-3. Do-it-yourself maintenance
Key batter y
Replace the battery with a new one if it is discharged.
■You will need the following items:
●Flathead screwdriver (To prevent damage to the key, cover
the tip of the screwdriver with tape.)
● Small flathead screwdriver
● Lithium battery
For types A and B electronic key ( P. 24): CR2016
For type C electronic key ( P. 24): CR1620
■ Replacing the battery
For types A and B electronic key ( P. 24)
Remove the cover.
Remove the module.