Scion iQ. Service Manual - part 11

185

4-1. Maintenance and care

4

Mainten

ance an

d ca

re

CAUTION

■

Caution about the exhaust pipe

Exhaust gasses cause the exhaust pipe to become quite hot.

When washing the vehicle, be careful not to touch the pipe until it has cooled
sufficiently, as touching a hot exhaust pipe can cause burns.

NOTICE

■

To prevent paint deterioration and corrosion on the body and compo-
nents

●

Wash the vehicle immediately in the following cases:

• After driving near the sea coast
• After driving on salted roads
• If you see coal tar or tree sap on the paint surface
• If you see dead insects, insect droppings or bird droppings on the paint
• After driving in an area contaminated with soot, oily smoke, mine dust,

iron powder or chemical substances

• If the vehicle becomes heavily soiled in dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface

●

If the paint is chipped or scratched, have it repaired immediately.

●

To prevent the wheels from corroding, remove any dirt and store in a place
with low humidity when storing the wheels.

■

Cleaning the exterior lights

●

Wash carefully. Do not use organic substances or scrub with a hard brush. 
This may damage the surfaces of the lights.

●

Do not apply wax on the surfaces of the lights. 
Wax may cause damage to the lenses.

■

Antenna installation and removal precautions

●

Before driving, ensure that the antenna is installed.

●

When the antenna is removed, such as before entering an automatic car
wash, make sure to store it in a suitable place so as not to lose it. Also,
before driving, make sure to reinstall the antenna in its original position.

186

4-1. Maintenance and care

NOTICE

■

To prevent damage to the windshield wiper arms

When lifting the wiper arms away from the windshield, pull the driver side
wiper arm upward first, and repeat for the passenger side. When returning
the wipers to their original position, do so from the passenger side first.

187

4-1. Maintenance and care

4

Mainten

ance an

d ca

re

Cleaning and protecting the vehicle interior

The following procedures will help protect your vehicle’s interior and

keep it in top condition:

■

Protecting the vehicle interior

Remove dirt and dust using a vacuum cleaner. Wipe dirty sur-
faces with a cloth dampened with lukewarm water.

■

Cleaning the leather areas
● Remove dirt and dust using a vacuum cleaner.
● Wipe any excess dirt and dust with a soft cloth dampened with

diluted detergent.

Use a diluted water solution of approximately 5% neutral wool deter-
gent.

● Wring out any excess water from the cloth and thoroughly

wipe off all remaining traces of detergent.

● Wipe the surface with a dry, soft cloth to remove any remain-

ing moisture. Allow the leather to dry in a shaded ventilated
area.

■

Cleaning the synthetic leather areas
● Remove loose dirt using a vacuum cleaner.
● Apply a mild soap solution to the synthetic leather using a

sponge or soft cloth.

● Allow the solution to soak in for a few minutes. Remove the

dirt and wipe off the solution with a clean, damp cloth.

188

4-1. Maintenance and care

■

Caring for leather areas

Scion recommends cleaning the interior of the vehicle at least twice a year to
maintain the quality of the vehicle’s interior.

■

Shampooing the carpets

There are several commercial foaming-type cleaners available. Use a
sponge or brush to apply the foam. Rub in overlapping circles. Do not apply
water. Excellent results are obtained when keeping the carpet as dry as pos-
sible.

■

Seat belts

Clean with mild soap and lukewarm water using a cloth or sponge. Also
check the belts periodically for excessive wear, fraying or cuts.

CAUTION

■

Water in the vehicle

●

Do not splash or spill liquid in the vehicle. Doing so may cause the electri-
cal components etc. to malfunction or catch fire.

●

Do not get any of the SRS components or wiring in the vehicle interior wet. 
(

P. 69)

Electrical malfunction may cause the airbags to deploy or not function
properly, resulting in death or severe injury.

■

Cleaning the interior (especially instrument panel)

Do not use polish wax or polish cleaner. The instrument panel may reflect off
the windshield, obstructing the driver’s view and leading to an accident,
resulting in death or serious injury.

189

4-1. Maintenance and care

4

Mainten

ance an

d ca

re

NOTICE

■

Cleaning detergents

●

Do not use organic substances such as benzene or gasoline, acidic or
alkaline solutions, dye, bleach or other detergent. Doing so may discolor
the vehicle interior or cause streaks or damage to painted surfaces.

●

Do not use polish wax or polish cleaner. The instrument panel’s or other
interior part’s painted surface may be damaged.

■

Preventing damage to leather surfaces

Observe the following precautions to avoid damage to and deterioration of
leather surfaces.

●

Remove any dust or dirt on leather surfaces immediately.

●

Do not expose the vehicle to direct sunlight for extended periods of time.
Park the vehicle in the shade, especially during summer.

●

Do not place items made of vinyl, plastic, or that contain wax on the uphol-
stery, as they may stick to the leather surface if the vehicle interior heats
up significantly.

■

Water on the floor

Do not wash the vehicle floor with water. 
Vehicle systems such as the audio system may be damaged if water comes
into contact with electrical components under the floor of the vehicle, and
may also cause the body to rust.

■

Cleaning the inside of the rear window

●

Do not use glass cleaner to clean the rear window, as this may cause
damage to the rear window defogger heater wires. Use a cloth dampened
with lukewarm water to gently wipe the window clean. Wipe the window in
strokes running parallel to the heater wires.

●

Be careful not to scratch or damage the heater wires.

190

4-2. Maintenance

Maintenance requirements

■

Repair and replacement

It is recommended that genuine Scion parts be used for repair to ensure per-
formance of each system. If non-Scion parts are used in replacement or if a
repair shop other than Scion dealer performs repairs, confirm the warranty
coverage.

■

Resetting the maintenance required remainder light (except Canada)

After the required maintenance is performed according to the maintenance
schedule, please reset the remainder light.
To reset the data, follow the procedures described below:

Switch the display to the trip meter A (

P. 127) when the engine is

running.

To ensure safe and economical driving, day-to-day care and regular

maintenance is essential. It is the owner’s responsibility to perform

regular checks. Scion recommends the following maintenance.

■

General maintenance

Should be performed on a daily basis. This can be done by your-
self or by a Scion dealer.

■

Scheduled maintenance

Should be performed at specified intervals according to the
maintenance schedule.

For details about maintenance items and schedules, refer to the
“Scheduled Maintenance Guide” or “Owner’s Manual Supplement”.

■

Do-it-yourself maintenance

You can perform some maintenance procedures yourself. 
Please be aware that do-it-yourself maintenance may affect war-
ranty coverage.

The use of Scion Repair Manuals is recommended.

For details about warranty coverage, see the separate “Owner’s
Warranty Information Booklet”, “Owner’s Manual Supplement”.

191

4-2. Maintenance

4

Mainten

ance an

d ca

re

Turn the engine switch to the LOCK position.

While pressing the MODE button, turn the engine switch to the ON
position (but do not start the engine because otherwise the reset
mode will be cancelled). Continue to press and hold the button until
the trip meter displays “000000”.

■

Allow inspection and repairs to be performed by a Scion dealer

●

Scion technicians are well-trained specialists and are kept up to date with
the latest service information. They are well informed about the opera-
tions of all systems on your vehicle.

●

Keep a copy of the repair order. It proves that the maintenance that has
been performed is under warranty coverage. If any problem should arise
while your vehicle is under warranty, your Scion dealer will promptly take
care of it.

CAUTION

■

If your vehicle is not properly maintained

It could result in serious damage to the vehicle and possible serious injury or
death.

■

Warning in handling of battery

●

Engine exhaust, some of its constituents, and a wide variety of automobile
components contain or emit chemicals known to the State of California to
cause cancer and birth defects and other reproductive harm. Work in a
well ventilated area.

●

Oils, fuels and fluids contained in vehicles as well as waste produced by
component wear contain or emit chemicals known to the State of
California to cause cancer and birth defects or other reproductive harm.
Avoid exposure and wash any affected area immediately.

●

Battery posts, terminals and related accessories contain lead and lead
compounds which are known to cause brain damage. Wash your hands
after handling. (

P. 218)

192

4-2. Maintenance

General maintenance

Engine compartment

Items

Check points

Battery

Maintenance-free.

(

P. 218)

Brake fluid

At the correct level?

(

P. 217)

Engine coolant

At the correct level?

(

P. 215)

Engine oil

At the correct level?

(

P. 211)

Exhaust system

No fumes or strange sounds?

Radiator/condenser/hoses

Not blocked with foreign matter? 

(

P. 216)

Washer fluid

At the correct level?

(

P. 220)

Listed below are the general maintenance items that should be per-

formed at the intervals specified in the “Owner’s warranty Informa-

tion Booklet” or “Owner’s Manual Supplement/Scheduled

Maintenance Guide”. It is recommended that any problem you notice

should be brought to the attention of your Scion dealer or qualified

service shop for advice.

193

4-2. Maintenance

4

Mainten

ance an

d ca

re

Vehicle interior

Items

Check points

Accelerator pedal

• Moves smoothly (without uneven 

pedal effort or catching)?

Automatic transmission “Park” 
mechanism

• Can the vehicle be hold securely 

on an incline with the shift lever in 
P?

Brake pedal

• Moves smoothly?
• Does it have appropriate clear-

ance and correct amount of free 
play?

Brakes

• Not pull to one side when 

applied?

• Loss of brake effectiveness?
• Spongy feeling brake pedal?
• Pedal almost touches floor?

Head restraints

• Move smoothly and lock 

securely?

Indicators/buzzers

• Function properly?

Lights

• Do all the lights come on?
• Headlights aimed correctly?

Parking brake

• Moves smoothly?
• Can hold the vehicle securely on 

an incline?

Seat belts

• Does the seat belt system oper-

ate smoothly?

• Are the belts undamaged?

Seats

• Do the seat controls operate 

properly?

Steering wheel

• Moves smoothly?
• Has correct free play?
• No strange noises?

194

4-2. Maintenance

Vehicle exterior

Items

Check points

Doors

• Operate smoothly?

Engine hood

• The lock system works properly?

Fluid leaks

• Is there any leakage after park-

ing?

Tires

• Inflation pressure is correct?
• Tire surfaces not worn or dam-

aged?

• Tires rotated according to the 

maintenance schedule?

• Wheel nuts are not loose?

Windshield wipers/rear window 
wiper

• The wiper blades should not 

show any signs of cracking, 
splitting, wear, contamination or 
deformation.

• The wiper blades should clear 

the windshield/rear window 
without streaking or skipping.

CAUTION

■

If the engine is running

Turn the engine off and ensure that there is adequate ventilation before per-
forming maintenance checks.

195

4-2. Maintenance

4

Mainten

ance an

d ca

re

Emission inspection and maintenance (I/M) programs

Some states have vehicle emission inspection programs which

include OBD (On Board Diagnostics) checks. The OBD system moni-

tors the operation of the emission control system.

■

If the malfunction indicator lamp comes on

The OBD system determines that a problem exists somewhere
in the emission control system. Your vehicle may not pass the I/
M test and may need to be repaired. Contact your Scion dealer
to service the vehicle.

■

Your vehicle may not pass the I/M test:
● When the battery is disconnected or discharged

Readiness codes that are set during ordinary driving are
erased.
Also, depending on your driving habits, the readiness codes
may not be completely set.

● When the fuel tank cap is loose

The malfunction indicator lamp comes on as a temporary mal-
function and your vehicle may not pass the I/M test.

■

When the malfunction indicator lamp goes off after several
driving trips

The error code in the OBD system will not be cleared unless the
vehicle is driven 40 or more times.

■

If your vehicle does not pass the I/M test

Contact your Scion dealer to prepare the vehicle for re-testing.

196

4-3. Do-it-yourself maintenance

Do-it-yourself service precautions

If you perform maintenance yourself, be sure to follow the correct

procedures as given in these sections.

Items

Parts and tools

Battery condition

(

P. 218)

• Warm  water
• Baking soda
• Grease
• Conventional wrench 

(for terminal clamp bolts)

Brake fluid level

(

P. 217)

• FMVSS No.116 DOT 3 or SAE 

J1703 brake fluid

• Rag or paper towel

Engine coolant level

(

P. 215)

• “Toyota Super Long Life Coolant” 

or similar high quality ethylene 
glycol based non-silicate, non-
amine, non-nitrite and non-borate 
coolant with long-life hybrid 
organic acid technology. 
Except Canada:
“Toyota Super Long Life Coolant” 
is pre-mixed with 50% coolant 
and 50% deionized water.
Canada:
“Toyota Super Long Life Coolant” 
is pre-mixed with 55% coolant 
and 45% deionized water.

• Funnel (used only for adding cool-

ant)

Engine oil level

P. 211)

• Toyota Genuine Motor Oil or 

equivalent

• Rag or paper towel
• Funnel (used only for adding oil)

Fuses

(

P. 244)

• Fuse with same amperage rating 

as original

197

4-3. Do-it-yourself maintenance

4

Mainten

ance an

d ca

re

CAUTION

The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.

■

When working on the engine compartment

●

Keep hands, clothing, and tools away from the moving fan and engine
drive belt.

●

Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.

●

Do not leave anything that may burn easily, such as paper or rags, in the
engine compartment.

●

Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.

●

Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.

Items

Parts and tools

Light bulbs

(

P. 255)

• Bulb with same number and watt-

age rating as original

• Flathead screwdriver

Radiator and condenser

(

P. 216)



Tire inflation pressure (

P. 230)

• Tire pressure gauge
• Compressed air source

Washer fluid

(

P. 220)

• Water washer fluid containing 

antifreeze (for winter use)

• Funnel (used only for adding 

washer fluid)

198

4-3. Do-it-yourself maintenance

CAUTION

■

When working on the engine compartment

●

Take care because brake fluid can harm your hands or eyes and damage
painted surfaces. 
If fluid gets on your hands or in your eyes, flush the affected area with
clean water immediately.

If you still experience discomfort, see a doctor.

■

When working near the electric cooling fan or radiator grille

Be sure the engine switch is in the LOCK position. 
With the engine switch in the ON position, the electric cooling fan may auto-
matically start to run if the air conditioning system is on and/or the coolant
temperature is high. (

P. 216)

■

Safety glasses

Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the eyes.

NOTICE

■

If you remove the air cleaner

Driving with the air cleaner removed may cause excessive engine wear due
to dirt in the air.

199

4-3. Do-it-yourself maintenance

4

Mainten

ance an

d ca

re

Hood

Release the lock from the inside of the vehicle to open the hood.

Pull the hood lock release
lever.

The hood will pop up slightly.

Pull up the hood catch lever
and lift the hood.

Hold the hood open by insert-
ing the supporting rod into the
slot.

200

4-3. Do-it-yourself maintenance

CAUTION

■

Pre-driving check

Check that the hood is fully closed and locked. 
If the hood is not locked properly, it may open while the vehicle is in motion
and cause an accident, which may result in death or serious injury.

■

When opening the hood

Make sure to use the support rod to support the hood when opening it,
ensuring that the rod is fixed correctly. The hood may stay open without sup-
port on slope, however, it is dangerous because the hood may suddenly
close.

NOTICE

■

When closing the hood

Be sure to return the support rod to its clip before closing the hood. Closing
the hood with the support rod up could cause the hood to bend.