cooling TOYOTA COROLLA 2017 11.G Owners Manual

1844-2. Driving procedures
COROLLA_TMMMS_TMMC_U (OM02494U)
*: To improve fuel efficiency and reduce noises, set the shift lever in D for
normal driving.
Press the switch.
Suitable for enhancing the fuel
economy, because the torque cor-
responding to the accelerator
pedal depression amount can be
generated more smoothly than it is
in normal conditions and the oper-
ation of the air conditioning system
(heating/cooling) will be minimized.
Press the switch again to return to
normal mode.
■When driving with the dynamic radar cruise control activated
Even when performing the following actions with the intent of enabling engine
braking, engine braking will not activate while downshifting to S because the
dynamic radar
cruise control will not be canceled. (→P. 240)
■Shift lock system
The shift lock system is a system to prevent accidental operation of the shift
lever in starting.
The shift lever can be shifted from P only when the engine switch is in the
“ON” position (vehicles without a smart key system) or IGNITION ON mode
(vehicles with a smart key system) and the brake pedal is being depressed.
Shift position purpose
Shift positionObjective or function
PParking the vehicle/starting the engine
RReversing
NNeutral
DNormal driving*
SEngine braking
BMaximum engine braking
Eco drive mode (if equipped)

3756-1. Using the air conditioning system and defogger
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Interior features
COROLLA_TMMMS_TMMC_U (OM02494U)
■For quick cooling (vehicles with air conditioning system)
Turn the dial to the “MAX A/C” position and select the recirculated air
mode.
■Fogging up of the windows
●Vehicles with the button: The windows will easily fog up when the
humidity in the vehicle is high. Turning on will dehumidify the air from
the outlets and defog the windshield effectively.
●Vehicles with the button: If you turn off, the windows may fog
up more easily.
●The windows may fog up if the recirculated air mode is used.
■Outside/recirculated air mode
When driving on dusty roads such as tunnels or in heavy traffic, set the out-
side/recirculated air mode button to the recirculated air mode. This is effective
in preventing outside air from entering the vehicle interior. During cooling
operation, setting the recirculated air mode will also cool the vehicle interior
effectively.
■When the outside temperature is low (vehicles with the button)
The air conditioning system 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. 457

3826-1. Using the air conditioning system and defogger
COROLLA_TMMMS_TMMC_U (OM02494U)
Open the vent
Close the vent
■Operation of the air conditioning system in Eco drive mode (if equipped)
In Eco drive mode, the air conditioning system is controlled as follows to pri-
oritize fuel efficiency:
●Engine speed controlled to restrict heating/cooling capacity.
●Outside/recirculated air mode may automatically switch depending on the
temperature setting or the inside temperature.
●Fan speed restricted when automatic mode is selected
To improve air conditioning performance, perform the following operations:
●Adjust the fan speed.
●Turn off Eco drive mode. (→P. 184)
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and
the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after is pressed.
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3836-1. Using the air conditioning system and defogger
6
Interior features
COROLLA_TMMMS_TMMC_U (OM02494U)■Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high.
Turning on will dehumidify the air from the outlets and defog the wind-
shield effectively.
●If you turn off, the windows may fog up more easily.
●The windows may fog up if the recirculated air mode is used.
■Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set the out-
side/recirculated air mode button to recirculated air mode. This is effective in
preventing outside air from entering the vehicle interior. During cooling oper-
ation, setting the recirculated air mode will also cool the vehicle interior
effectively.
●Outside/recirculated air mode may automatically switch depending on the
temperature setting or the inside temperature.

4287-3. Do-it-yourself maintenance
COROLLA_TMMMS_TMMC_U (OM02494U)
WARNING
■When working near the electric cooling fan 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 fan may automat-
ically start to run if the air conditioning is on and/or the coolant temperature
is high. (→P. 439)
Vehicles with a smart key system: Be sure the engine switch is off. With the
engine switch in IGNITION ON mode, the electric cooling fan may automat-
ically start to run if the air conditioning is on and/or the coolant temperature
is high. (→P. 439)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in 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.

4337-3. Do-it-yourself maintenance
7
Maintenance and care
COROLLA_TMMMS_TMMC_U (OM02494U)
Engine compartment
Washer fluid tank (→P. 443)
Engine oil filler cap
(→P. 435)
Engine oil level dipstick
(→P. 434)
Brake fluid reservoir
(→P. 439)Battery (→P. 441)
Fuse box (→P. 462)
Electric cooling fan
Engine coolant reservoir
(→P. 437)
Condenser (→P. 439)
Radiator (→P. 439)1
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4377-3. Do-it-yourself maintenance
7
Maintenance and care
COROLLA_TMMMS_TMMC_U (OM02494U)
The coolant level is satisfactory if it is between the “F” and “L” lines on
the reservoir when the engine is cold.
Reservoir cap
“F” line
“L” line
If the level is on or below the “L”
line, add coolant up to the “F” line.
(→P. 535)
■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.
For the U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% cool-
ant and 50% deionized water. (Minimum temperature: -31°F
[-35°C])
For Canada: “Toyota Super Long Life Coolant” is a mixture of 55% cool-
ant and 45% deionized water. (Minimum temperature: -44°F
[-42°C])
For more details about engine coolant, contact your Toyota 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 Toyota dealer test the cap and check for
leaks in the cooling system.
Engine coolant
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4387-3. Do-it-yourself maintenance
COROLLA_TMMMS_TMMC_U (OM02494U)
WARNING
■When the engine is hot
Do not remove the engine coolant reservoir cap or the radiator cap.
(→P. 537)
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 straight 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 it from damaging parts or paint.

5348-2. Steps to take in an emergency
COROLLA_TMMMS_TMMC_U (OM02494U)
WARNING
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the battery:
●Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with any other than the intended terminal.
●Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.
●Do not allow the + and - clamps of the jumper cables to come into contact
with each other.
●Do not smoke, use matches, cigarette lighters or allow open flame near
the battery.
■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
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fan or engine drive belt.

5358-2. Steps to take in an emergency
8
When trouble arises
COROLLA_TMMMS_TMMC_U (OM02494U)
●The engine coolant temperature gauge (→P. 79, 88) enters the red
zone or a loss of power is experienced.
●Steam comes out from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled
down sufficiently, inspect the
hoses and radiator core (radia-
tor) for any leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact your
Toyota dealer.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
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