Scion FR-S. Service Manual - part 17

262

4-3. Do-it-yourself maintenance

NOTICE

■

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.

■

Low profile tires and wheels

Low profile tires may cause greater damage than usual to the tire wheel
when receiving impact from the road surface. Therefore pay attention to
the following:

●

Be sure to use proper tire inflation pressure. If tires are under-inflated,
they may be damaged more severely.

●

Avoid pot holes, uneven pavement, curbs and other road hazards. 
Failure to do so may lead to severe tire and wheel damage.

■

If tire inflation pressures become 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 is dis-
played on the tire and loading information label. (

P. 354)

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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 graduations of the gauge.

If the tire inflation pressure is not within the recommended
levels, adjust the pressure. 
If you add too much air, press the center of the valve to
lower.

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

Reinstall the tire valve cap.

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 refilling, 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 and 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 reinstall the tire valve caps. 
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 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:

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

■

Aluminum wheel precautions
● Use only Scion wheel nuts and wrenches designed for use

with your aluminum wheels.

● When rotating, repairing or changing your tires, check that the

wheel nuts are still tight after driving 1000 miles (1600 km).

● Be careful not to damage the aluminum wheels when using

tire chains.

● Use only Scion genuine balance weights or equivalent and a

plastic or rubber hammer when balancing your wheels.

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■

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
advanced warning in the event of a loss in tire inflation pressure. When-
ever wheels are replaced, the tire pressure warning valves and transmit-
ters must be installed. (

P. 257)

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 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 ends facing inward.
Installing the nuts with the tapered
ends facing outward can cause the
wheel to break and eventually cause
the 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 inflation 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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4-3. Do-it-yourself maintenance

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 and pull the glove box
toward you to disconnect the
claws.

STEP 

1 

STEP 

2 

STEP 

3 

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Lower the glove box slowly
until surface 

 is horizontal

with the floor, then pull it out.
(Simply pulling with gentle
force will disengage the lower
claws.)

Lower claw

Lower claw engagement
point

Do not forcibly pull the glove
box. Otherwise, the lower
claws or the lower claw
engagement points may be
deformed, making it difficult to
reinstall or close the glove box.

Remove the filter cover.

Remove the air conditioning
filter and replace it with a new
one.

The “

UP” marks shown on

the filter should be pointing up.

STEP 

4 

STEP 

5 

STEP 

6 

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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 removing the glove box

Do not forcibly pull the glove box. Otherwise, the lower claws or the lower
claw engagement points may be deformed, making it difficult to reinstall or
close the glove box.

■

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 key 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.

To prevent the buttons from
being disassembled, face the
button surface downward.

Remove the module.

Open the case cover using a
coin protected with tape etc.
and remove the depleted bat-
tery.

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.

■

When putting the module back

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.

Insert the module from directly above.
Inserting it on an angle may prevent the
key buttons from operating properly.

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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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4-3. Do-it-yourself maintenance

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 tabs in and lift the lid
off.

Instrument panel

Remove the lid.

STEP 

1 

STEP 

2 

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After a system failure, see “Fuse layout and amperage rat-
ings” (

P. 279) for details about which fuse to check.

Remove the fuse with the pull-
out tool.

Check if the fuse has blown.

Type A

Normal fuse

Blown fuse

Replace it with one of an
appropriate amperage rating.
The amperage rating can be
found on the fuse box lid.

Type B

Normal fuse

Blown fuse

Replace it with one of an
appropriate amperage rating.
The amperage rating can be
found on the fuse box lid.

STEP 

3 

STEP 

4 

STEP 

5