cooling TOYOTA IQ 2013 Owners Manual

156
3-1. Using the air conditioning system and defogger
Air conditioning system
Adjusting the settings■ Adjusting the temperature setting
Turn the temperature control dial clockwise (warm) or counter-
clockwise (cool).
If is not pressed, the system will blow ambient temperature air or
heated air.
For quick cooling, turn the temperature control dial to the MAX A/C posi-
tion and press the recirculated air mode switch to turn on the recirculated
air mode.
■ Adjusting the fan speed
Turn the fan speed control dial clockwise (increase) or counter-
clockwise (decrease).
Set the dial to “0” to turn the fan off.
Air outlet
selection dial
Temperature control dial
Outside air or recirculated
air mode switch
Fan speed
control dial
Air conditioning
ON/OFF button

160 3-1. Using the air conditioning system and defogger
Right and left side outlets
Direct air flow to the left or
right, up or down.
Turn the knob to open or close
the vent.
■For quick cooling
Turn the temperature control dial to the “MAX A/C” position and select the
recirculated air mode.
■ Using the system in recirculated air mode
The windows will fog up more easily if the recirculated air mode is used for
an extended period.
■ When outside air temperat ure approaches 32°F (0°C)
The air conditioning system may not operate even when
is pressed.
■ When
is selected for the air outlets used
For your driving comfort, air flowing to the feet may be warmer than air flow-
ing to the upper body depending on the position of the temperature adjust-
ment dial.

196 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 condi tioning system is on and/or the coolant
temperature is high. ( P. 214)
■ 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.

208
4-3. Do-it-yourself maintenance
Engine compar tment
Engine oil filler cap ( P. 210)
Engine oil level dipstick ( P. 209)
Battery ( P. 216)
Brake fluid reservoir ( P. 215)
Fuse box ( P. 240)Washer fluid tank ( P. 218)
Radiator ( P. 214)
Electric cooling fan
Condenser ( P. 214)
Engine coolant reservoir ( P. 213)
Fuse box ( P. 240)

213
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine coolant
The coolant level is satisfactory if it is between the FULL and LOW
lines on the reservoir when the engine is cold.
Reservoir cap
FULL
LOW
If the level is on or below the
LOW line, add coolant up to the
FULL line.
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, reservoir cap, radiator cap, drain cock
and water pump.
If you cannot find a leak, have your Scion dealer pressure test the cap and
check for leaks in the cooling system.
■ Coolant selection
Only use “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 a mixture of 50% cool- ant and 50% deionized water. (Enabled: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Enabled: -44 F [-42 C])
For more details about engine coolant, contact your Scion dealer.

214 4-3. Do-it-yourself maintenance
Radiator and condenserCheck the radiator and condenser and clear any foreign objects.
If either of the above parts are ex tremely dirty or you are not sure of
their condition, have your vehicl e checked by your Scion dealer.
CAUTION
■When the engine is hot
Do not remove the coolant reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■When adding engine coolant
Coolant is neither plain water nor stra ight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent damage to parts or paint.
CAUTION
■When the engine is hot
Do not touch the radiator or condenser, as they may be hot and may cause
serious injuries, such as burns.

248 4-3. Do-it-yourself maintenance
■Under the driver’s side instrument panel
FuseAmpereCircuit
1 ECU-IG NO.1 7.5 A Vehicle stability control system,
shift lock control system, electric
power steering, automatic head-
light system, main body ECU, tire
pressure warning system
2 GAUGE 10 A Electric cooling fan, charging sys-
tem, emergency flashers, front
passenger’s seat belt reminder
light, back-up lights, multiport fuel
injection system/sequential multi-
port fuel injection system, wind-
shield wiper ECU
3 HTR-IG 10 A Air conditioning system, rear win-
dow defogger
4 WASHER RR 10 A Windshield washer
5 WIPER RR 10 A Rear window wiper
6 WIPER FR 25 A Windshield wipers
7 WASHER FR 10 A Windshield washer
8 OBD 7.5 A On-board diagnosis system
9 DOOR NO.2 20 A Power windows

5
When trouble arises
307
5-2. Steps to take in an emergency
CAUTION
■
Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while
related parts contain lead and lead compounds. Observe the following pre-
cautions when handling the battery.
●When working with the battery, always wear safety glasses and take care
not to allow any battery fluids (acid) to come into contact with skin, clothing
or the vehicle body.
● Do not lean over the battery.
● In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.
● Always wash your hands after handling the battery support, terminals, and
other battery-related parts.
● Do not allow children near the battery.
NOTICE
■When handling jumper cables
Be careful that the jumper cables do not become tangled in the cooling fan
or any of the belts when connecting or disconnecting them.

320 6-1. Specifications
The 0W portion of the oil viscosity rating indicates the characteristic of the
oil which allows cold startability. Oils with a lower value before the W allow
for easier starting of the engine in cold weather.
The 20 in 0W-20 indicates the oil viscosity when the oil is at its operating
temperature. An oil with a higher viscosity may be better suited if the vehi-
cle is operated at high speeds, or under extreme load conditions.
How to read oil container label:
The ILSAC (International Lubricant Standardization and Approval
Committee) Certification Mark is added to some oil containers to help
you select the oil you should use.
Cooling system
Capacity
(Reference) 5.2 qt. (4.9 L, 4.3 Imp. qt.)
Coolant typeUse either of the following.
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-silicate, non-amine, non-nitrite and
non-borate coolant with long-life hybrid
organic acid technology
Do not use plain water alone.

360 Alphabetical index
CareExterior .................................. 182
Interior ................................... 185
Seat belts .............................. 186
Cargo capacity ......................... 144
Chains ....................................... 150
Child restraint system Booster seats, definition ..........85
Booster seats, installation .......90
Convertible seats, definition ....85
Convertible seats,
installation .............................90
Front passenger occupant classification system .............79
Infant seat, definition ...............85
Infant seats, installation...........90
Installing CRS with LATCH system ..................................92
Installing CRS with seat belts ......................................93
Installing CRS with top tether straps ..........................97
Child safety
Airbag precautions ..................73
Battery precautions ....... 217, 307
Child restraint syst em..............85
How your child should wear the seat belt ..........................44
Installing child restraints ..........90
Power window lock switch.......53
Power window precautions .....55
Removed key battery
precautions ......................... 239
Seat belt extender precautions ...........................46
Seat belt precautions ..............45 Cleaning
Exterior.................................. 182
Interior ................................... 185
Seat belts .............................. 186
Clock ......................... 119, 124, 128
Condenser ................................ 214
Cooling system Engine overheating ............... 308
CRS ............................................. 85
Cup holders .............................. 170
Curtain shield airbags ............... 65
Customizable features ............ 339
Daytime running light system .................................... 132
Defogger
Rear window ................. 162, 163
Side mirrors........................... 163
Dimension ................................ 316
Do-it-yourself maintenance .... 194
Doors Back door ................................ 31
Door glasses ........................... 53
Door lock ................................ 28
Side doors ............................... 28
Side mirrors............................. 50
Warning light ......................... 276
Driver’s seat belt reminder
light ......................................... 276
Driving Break-in tips .......................... 103
Correct posture ....................... 63
Procedures............................ 102
Winter driving tips ................. 149C
D