2021 TOYOTA C-HR cooling

2824-5. Using the driving support systems
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Driving modes
●
“NORMAL” mode
Provides an optimal balance of fuel economy, quietness, and
dynamic performance. Suitable for city driving.
● “SPORT” mode
Controls the transmission and eng ine to provide quick, powerful
acceleration. This mode also chan ges the steering feel, making it
suitable for when agile driving response is desired, such as wh en
driving on roads with many curves.
When sport mode is selected, the “SPORT” indicator will illumin ate
on the multi-information display.
● “ECO” mode
Helps the driver accelerate in an eco-friendly manner and
improve fuel economy through moderate throttle characteristics
and by controlling the operation of the air conditioning system
(heating/cooling).
When Eco mode is selected, the “ECO MODE” indicator will illumi -
nate on the multi-information display.
While the air conditioning is being used, the system automatically
switches to air conditioning eco mode ( P. 317), allowing for driving
that leads to even better fuel economy.
■ Canceling driving modes
●Select another drive mode. Also, “SPORT” mode will be canceled automati-
cally when the engine switch is turned off.
● “NORMAL” mode and “ECO” mode will not be canceled automatically until
another drive mode is selected, even if the engine switch is tu rned off.

3175-1. Using the air conditioning system and defogger
5
Interior features
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■Using automatic mode
Fan speed is adjusted automatically according to the temperatur e 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.
■ 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
windshield effectively.
● If you turn off, the windows may fog up more easily.
● The windows may fog up if the recirculated air mode is used.
■ When driving on dusty roads
Close all windows. If dust thrown up by the vehicle is still drawn into the vehi-
cle after closing the windows, it is recommended that the air intake mode be
set to outside air mode and the fan speed to any setting except off.
■ Outside/recirculated air mode
●Setting to the recirculated air mode temporarily is recommended in prevent-
ing dirty air from entering the vehicle interior and helping to cool the vehicle
when the outside air temperature is high.
● Outside/recirculated air mode may automatically switch dependin g on the
temperature setting or the inside temperature.
■ Operation of the air conditioning system in Eco drive mode
●In Eco drive mode, the air conditioning system is controlled as follows to pri-
oritize fuel efficiency:
• Engine speed and compressor operation controlled to restrict h eating/
cooling capacity
• Fan speed restricted when automatic mode is selected
● To improve air conditioning performance, perform the following operations:
• Adjust the fan speed
• Adjust the temperature setting
• Turn off Eco drive mode
● Even when the drive mode is set to Eco drive mode, the air cond itioning eco
mode can be turned off by pressing .

3576-3. Do-it-yourself maintenance
6
Maintenance and care
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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 co olant temperature
is high. ( P. 366)
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 co olant temperature
is high. ( P. 366)
■ 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.

3616-3. Do-it-yourself maintenance
6
Maintenance and care
C-HR_OM_USA_OM10684U
Engine compartment
Washer fluid tank (P. 373)
Engine coolant reservoir ( P. 365)
Fuse boxes ( P. 401)
Engine oil filler cap ( P. 363)
Engine oil level dipstick ( P. 362) Battery
( P. 369)
Brake fluid reservoir ( P. 367)
Electric cooling fan
Condenser ( P. 366)
Radiator ( P. 366)

3656-3. Do-it-yourself maintenance
6
Maintenance and care
C-HR_OM_USA_OM10684U
The coolant level is satisfactory if it is between the “FULL” a nd “LOW”
lines on the reservoir wh en 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.
■ 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-bora te coolant with
long-life hybrid organic acid technology.
For the U.S.A.: “Toyota Super Long Life Coolant” is a mixture o f 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 deal er.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir ca ps, 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

3666-3. Do-it-yourself maintenance
C-HR_OM_USA_OM10684U
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehic le inspected by your Toyota dea ler.
WARNING
■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 straight antifreeze. The cor rect 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 p arts or paint.
Radiator and condenser
WARNING
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and c ause seri-
ous injuries, such as burns.

4697-2. Steps to take in an emergency
7
When trouble arises
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NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not beco me entan-
gled in the cooling fan or engine drive belt.

4707-2. Steps to take in an emergency
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If your vehicle overheats
●The needle of the engine coolant temperature gauge ( P. 9 6 )
enters the red zone or a loss of engine power is experienced (f or
example, the vehicle speed does not increase).
● Steam comes out f rom under the hood.
Stop the vehicle in a safe place and turn off the air condition ing 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.
The following may indicate that your vehicle is overheating.
Correction procedures
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