cooling TOYOTA tC 2015 Owners Manual (in English)

238
tC_OM_OM21057U_(U)
3-1. Using the air conditioning system and defogger
Air conditioning system
Fan speed control knob
Air outlet selector knob
Outside/recirculated air mode button Cooling and dehumidification
function on/off buttonTemperature control knob

241
3-1. Using the air conditioning system
and defogger
3
Interior features
tC_OM_OM21057U_(U)
Air flows to the feet and the
windshield defogger operates.
The air intake is automatically
switched to outside air mode. It is
not possible to return to recircu-
lated air mode even by pressing
.
Pressing to turn the cooling
and dehumidification function on
clears the windshield and side
windows faster.
Air flows to the windshield and
side windows.
The air intake is automatically
switched to outside air mode. It is
not possible to return to recircu-
lated air mode even by pressing
.
Pressing to turn the cooling
and dehumidification function on
clears the windshield and side
windows faster.
■Switching between outside air and recirculated air modes
Press .
The mode switches between outside air mode (introduces air from out-
side the vehicle) (indicator off) and recirculated air mode (recycles air
inside the vehicle) (indicator on) each time the button is pressed.
: Canada only

244 3-1. Using the air conditioning system and defogger
tC_OM_OM21057U_(U)
■When outside air temperature is below 32 °F (0 °C)
The cooling and dehumidification function may not operate even when

is pressed.
■ Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
● During use, various odors from inside and outside the vehicle may enter
into and accumulate in the air conditioning system. This may then cause
odor to be emitted from the vents.
● To reduce potential odors from occurring:
It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
■ Air conditioning filter
P. 332
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The
difference between the temperature of the outside air and that of the wind-
shield can cause the outer surface of the windshield to fog up, blocking your
vision.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is stopped.

293
4-3. Do-it-yourself maintenance
4
Maintenance and care
tC_OM_OM21057U_(U)
CAUTION
■
When working near the electric c ooling fans or radiator grille
Vehicles without a smart key system
Be sure the engine switch is off. With the engine switch in the “ON” position,
the electric cooling fans may automatically start to run if the air conditioning
is on and/or the coolant temperature is high. ( P. 305)
Vehicles with a smart key system
Be sure the “ENGINE START STOP” switch is off. With the “ENGINE START
STOP” switch in IGNITION ON mode, the electric cooling fans may automat\
-
ically start to run if the air conditioning is on and/or the coolant temperature
is high. ( P. 305)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.

298
4-3. Do-it-yourself maintenance
tC_OM_OM21057U_(U)
Engine compar tment
Washer fluid tank (P. 312)
Engine coolant reservoir ( P. 303)
Engine oil filler cap ( P. 300)
Engine oil level dipstick ( P. 299)Brake fluid reservoir
( P. 305)
Fuse box ( P. 341)
Battery ( P. 308)
Electric cooling fans
Condenser ( P. 305)
Radiator ( P. 305)

303
4-3. Do-it-yourself maintenance
4
Maintenance and care
tC_OM_OM21057U_(U)
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” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line. (P. 421)
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44 F [-42 C])
For more details about engine coolant, contact your Scion dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock
and water pump.
If you cannot find a leak, have your Scion dealer test the cap and check for
leaks in the cooling system.

304 4-3. Do-it-yourself maintenance
tC_OM_OM21057U_(U)
CAUTION
■When the engine is hot
Do not remove the engine 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 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 damaging parts or paint.

344 4-3. Do-it-yourself maintenance
tC_OM_OM21057U_(U)
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1
FAN NO.230 AElectric cooling fan
2 FAN NO.1 40 A Electric cooling fan
3 ABS NO.2 30 A ABS, VSC
4 ABS NO.1 50 A ABS, VSC
5 HTR 50 A Air conditioning system
6 ALT 120 A Charging system
7 EPS 80 A Electric power steering system
8 P/I-B 50 A EFI NO.1, EFI NO.2, HORN, IG2

349
4-3. Do-it-yourself maintenance
4
Maintenance and care
tC_OM_OM21057U_(U)
14 ACC
5 ABody ECU, clock, outside rear view
mirror, shift lock system, audio sys-
tem
15 IG 5 ARear window defoggers, electric
cooling fan, multiport fuel injection
system/sequential multiport fuel
injection system
16 TAIL 10 AParking lights, tail lights, accessory
lights, side marker lights, license
plate lights, multiport fuel injection
system/sequential multiport fuel
injection system
17 IGN 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system, automatic transmission,
clock, smart key system, steering
lock system, SRS airbag system,
fuel pump, front passenger occu-
pant classification system
18 PANEL 5 AGauges and meters, air condition-
ing system, seat heater, VSC OFF
switch, shift lever illumination,
steering switch, clock, audio sys-
tem
19 S/HTR FL 10 A Seat heater (driver’s side)
20 MET 7.5 A Gauges and meters
FuseAmpereCircuit

420 5-2. Steps to take in an emergency
tC_OM_OM21057U_(U)
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.
■ To prevent damage to the vehicle (vehicles with a manual transmis-
sion)
Do not pull- or push-start the vehicle as the three-way catalytic converter
may overheat and become a fire hazard.
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fans or belt.