Scion iA. Service Manual - part 27

Mainten

Engine Coolant

Inspect the antifreeze protection and coolant level in the coolant res-
ervoir at least once a year—at the beginning of the winter season—
and before traveling where temperatures may drop below freezing.

Inspect the condition and connections of all cooling system and
heater hoses.

Replace any that are swollen or deteriorated.

The coolant should be at full in the
radiator and between the F and L
marks on the coolant reservoir
when the engine is cool.

Cooling fan

Cooling system cap

Coolant reservoir

If it is at or near L, add enough coolant to the coolant reservoir to pro-
vide freezing and corrosion protection and to bring the level to F.

Securely tighten the coolant reservoir tank cap after adding coolant.

If the coolant reservoir is empty or new coolant is required frequently,
consult your Scion dealer.

Changing the coolant should be done by your Scion dealer.

Inspecting Coolant Level

1
2
3

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WARNING

■

Do not use a match or live flame in the engine compartment. DO NOT
ADD COOLANT WHEN THE ENGINE IS HOT
A hot engine is dangerous. If the engine has been running, parts of the
engine compartment can become very hot. You could be burned. Carefully
inspect the engine coolant in the coolant reservoir, but do not open it.

■

Switch the ignition to off and make sure the fan is not running

before attempting to work near the cooling fan
Working near the cooling fan when it is running is dangerous. The fan could
continue running indefinitely even if the engine has stopped and the engine
compartment temperature is high. You could be hit by the fan and seriously
injured.

■

Do not remove either cooling system cap when the engine and

radiator are hot
When the engine and radiator are hot, scalding coolant and steam may
shoot out under pressure and cause serious injury.

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NOTICE

●

Radiator coolant will damage paint. Rinse it off quickly if spilled.

●

Use only soft (deionized) water in the coolant mixture. Water that contains
minerals will cut down on the coolant’s effectiveness.

●

Do not add only water. Always add a proper coolant mixture.

●

The engine has aluminum parts and must be protected by an ethylene-gly-
col- based coolant to prevent corrosion and freezing.

●

DO NOT USE coolants Containing Alcohol, methanol, Borate or Silicate.
These coolants could damage the cooling system.

●

DO NOT MIX alcohol or methanol with the coolant. This could damage the
cooling system.

●

Do not use a solution that contains more than 60% antifreeze.
This would reduce effectiveness.

●

Use of engine coolant specifically designed for the Scion iA is required
when replacing engine coolant. Using engine coolant that is not specifi-
cally designed for this vehicle may cause serious damage to the engine
and cooling system. For questions on how to obtain this specially
designed coolant, contact your Scion dealer.

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Brake/Clutch Fluid

The brakes and clutch draw fluid
from the same reservoir.

Inspect the fluid level in the reser-
voir regularly. It should be kept
between the MAX and MIN lines.

The level normally drops with
accumulated distance, a condition
associated with wear of brake and
clutch linings. If it is excessively
low, have the brake/clutch system
inspected by your Scion dealer.

Inspecting Brake/Clutch Fluid Level

WARNING

■

If the brake/clutch fluid level is low, have the brakes inspected
A low brake/clutch fluid level is dangerous.
A low level could indicate brake lining wear or a brake system leak which
could cause the brakes to fail and lead to an accident.

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Mainten

Window Washer Fluid

Inspect fluid level in the washer
fluid reservoir; add fluid if neces-
sary.

Use plain water if washer fluid is unavailable.
But use only washer fluid in cold weather to prevent it from freezing.

●

State or local regulations may restrict the use of volatile organic compounds
(VOCs), which are commonly used as anti-freeze agents in washer fluid. A
washer fluid with limited VOC content should be used only if it provides ade-
quate freeze resistance for all regions and climates in which the vehicle will
be operated.

Inspecting Washer Fluid Level

WARNING

■

Use only windshield washer fluid or plain water in the reservoir
Using radiator antifreeze as washer fluid is dangerous. If sprayed on the
windshield, it will dirty the windshield, affect your visibility, and could result
in an accident.

■

Using Washer Fluid Without Anti-freeze Protection in Cold Weather
Operating your vehicle in temperatures below 4 degrees C (40 degrees F)
using washer fluid without anti-freeze protection is dangerous as it could
cause impaired windshield vision and result in an accident. In cold weather,
always use washer fluid with anti- freeze protection.

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Body Lubrication

All moving points of the body, such as door and hood hinges
and locks, should be lubricated each time the engine oil is
changed. Use a nonfreezing lubricant on locks during cold
weather.

Make sure the hood’s secondary latch keeps the hood from
opening when the primary latch is released.

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Mainten

Wiper Blades

Contamination of either the windshield or the blades with for-
eign matter can reduce wiper effectiveness. Common sources
are insects, tree sap, and hot wax treatments used by some
commercial car washes.

If the blades are not wiping properly, clean the window and
blades with a good cleaner or mild detergent; then rinse thor-
oughly with clean water. Repeat if necessary.

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When the wipers no longer clean well, the blades are probably worn
or cracked.
Replace them.

Raise the wiper arm and turn
the blade assembly to expose
the plastic locking clip.
Compress the clip and slide the
assembly downward; then lift it
off the arm.

Hold the end of the rubber and
pull until the tabs are free of the
metal support.

Metal support

Tab

Remove the metal stiffeners
from each blade rubber and
install them in the new blade.

Carefully insert the new blade
rubber. Then install the blade
assembly in the reverse order
of removal.

Replacing Windshield Wiper Blades

Plastic locking clip

1
2

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●

When raising both windshield wiper arms, raise the driver’s side wiper arm
first. When lowering the wiper arms, slowly lower the wiper arm from the
passenger’s side first while supporting it with your hand. Forcefully lowering
the wiper arms could damage the wiper arm and blade, and may scratch or
crack the windshield.

●

Install the blade so that the tabs are toward the bottom of the wiper arm.

NOTICE

●

Hot waxes applied by automatic car washers have been known to affect
the wiper’s ability to clean windows.

●

To prevent damage to the wiper blades, do not use gasoline, kerosene,
paint thinner, or other solvents on or near them.

●

To prevent damage to the wiper arms and other components, do not try to
sweep the wiper arm by hand.

●

To prevent damage to the windshield let the wiper arm down easily, don’t
let it slap down on the windshield.

●

Do not bend or discard the stiffeners. You need to use them again.

●

If the metal stiffeners are switched, the blade’s wiping efficiency could be
reduced.
So don’t use the driver’s side metal stiffeners on the passenger’s side, or
vice versa.

●

Be sure to reinstall the metal stiffeners in the new blade rubber so that the
curve is the same as it was in the old blade rubber.

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Battery

Before performing battery mainte-
nance, remove the battery cover
by pressing the tab.

To get the best service from a battery:

● Keep it securely mounted.
● Keep the top clean and dry.
● Keep terminals and connec-

tions clean, tight, and coated
with petroleum jelly or terminal
grease.

● Rinse off spilled electrolyte

immediately with a solution of
water and baking soda.

● If the vehicle will not be used for an extended time, disconnect the

battery cables and charge the battery every six weeks.

Contact your Scion dealer for a battery replacement purchase.

Tab

Battery Maintenance

Battery Replacement

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WARNING

■

Wash hands after handling the battery and related accessories
Battery posts, terminals and related accessories contain lead and lead com-
pounds, chemicals known to the State of California to cause cancer and
reproductive harm.

■

Read the following precautions carefully before using the bat-

tery or inspecting to ensure safe and correct handling

■

Always wear eye protection when working near the battery

Working without eye protection is dangerous. Battery fluid contains SULFU-
RIC ACID which could cause blindness if splashed into your eyes. Also,
hydrogen gas produced during normal battery operation, could ignite and
cause the battery to explode.

■

Wear eye protection and protective gloves to prevent contact

with battery fluid
Spilled battery fluid is dangerous.

Battery fluid contains SULFURIC ACID which could cause serious injuries if
it gets in eyes, or on the skin or clothing. If this happens, immediately flush
your eyes with water for 15 minutes or wash your skin thoroughly and get
medical attention.

■

Always keep batteries out of the reach of children

Allowing children to play near batteries is dangerous. Battery fluid could
cause serious injuries if it gets in the eyes or on the skin.

■

Keep flames and sparks away from open battery cells and do

not allow metal tools to contact the positive (+) or negative (-) terminal
of the battery when working near a battery. Do not allow the positive (+)
terminal to contact the vehicle body
Flames and sparks near open battery cells are dangerous. Hydrogen gas,
produced during normal battery operation, could ignite and cause the bat-
tery to explode. An exploding battery can cause serious burns and injuries.
Keep all flames including cigarettes and sparks away from open battery
cells.

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WARNING

■

Keep all flames, including cigarettes, and sparks away from

open battery cells
Flames and sparks near open battery cells are dangerous. Hydrogen gas,
produced during normal battery operation, could ignite and cause the bat-
tery to explode. An exploding battery can cause serious burns and injuries.

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Mainten

Key Battery Replacement

If the buttons on the smart Key are inoperable and the operation indi-
cator light does not flash, the battery may be dead.

Replace with a new battery before the smart Key becomes unusable.

The following conditions indicate that the battery power is low:
● The KEY indicator light (green) flashes in the instrument cluster for

about 30 seconds after the engine is turned off.

● The system does not operate and the operation indicator light on

the smart Key does not flash when the buttons are pressed.

● The system’s operational range is reduced.
Replacing the battery at your Scion dealer is recommended to prevent
damage to the key. If replacing the battery by yourself, follow the
instruction below.

■

Replacing the key battery

Press the knob and pull out
the auxiliary key.

Twist a tape-wrapped flat-
head screwdriver in the
direction of the arrow and
open the cover slightly.

Knob

Cover

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Insert the tape-wrapped flat-
head screwdriver into the
gap and slide it in the direc-
tion of the arrow.

Twist the flathead screw-
driver in the direction of the
arrow and remove the cover.

Remove the battery cap,
then remove the battery.

Insert a new battery with the
positive pole facing up, and
then cover the battery with
the battery cap.

Cover

Gap

Cover

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Close the cover.

Reinsert the auxiliary key.

NOTICE

●

Make sure the battery is installed correctly. Battery leakage could occur if it
is not installed correctly.

●

When replacing the battery, be careful not to touch any of the internal cir-
cuitry and electrical terminals, bend the electrical terminals, or get dirt in
the smart Key as the smart Key could be damaged.

●

There is the danger of explosion if the battery is not correctly replaced.

●

Dispose of used batteries according to the following instructions.

• Insulate the plus and minus terminals of the battery using cellophane or

equivalent tape.

• Never disassemble.
• Never throw the battery into fire or water.
• Never deform or crush.

●

Replace only with the same type battery (CR2025 or equivalent).

●

Be careful not to allow the rubber ring shown in the figure to be scratched
or damaged.

●

If the rubber ring detaches, reattach it
before inserting a new battery.

Rubber ring

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