2019 TOYOTA YARIS HATCHBACK cooling

5027-3. Do-it-yourself maintenance
YARIS_F_OM_Europe_OM52A54E
■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.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -35 C [-31F])
For more details about coolant, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
■ 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 any authorized Toyota retailer or Toyota autho-
rized repairer, or any reli able repairer test the cap and check for leaks in the
cooling system.
WARNING
■ When the engine is hot
Do not remove the radiator 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 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.

6388-2. Steps to take in an emergency
YARIS_F_OM_Europe_OM52A54E
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 anything other than the intended ter-
minal.
● 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.
■ To prevent damage to the vehicle
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 engine drive belt.

6408-2. Steps to take in an emergency
YARIS_F_OM_Europe_OM52A54E
After the engine has cooled down sufficiently, inspect the hoses and
radiator core (radiator) for any leaks.
If a large amount of coolant leaks, immediately contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
The coolant level is satisfactory if it is between the “FULL” and
“LOW” lines on the reservoir.
3
1KR-FE engine2NR-FKE engine
Radiator
Cooling fan
1
2
4
1KR-FE engine2NR-FKE engine
Reservoir
“FULL”
“LOW”
Radiator cap
1
2
3
4

6418-2. Steps to take in an emergency
8
When trouble arises
YARIS_F_OM_Europe_OM52A54E
Add coolant if necessary.
Water can be used in an emergency if coolant is unavailable.
Start the engine and turn the air conditioning system on to check
that the radiator cooling fan operates and to check for coolant leaks
from the radiator or hoses.
The fan operates when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fan is operating by checking the fan
sound and air flow. If it is difficult to check these, turn the air conditioning
system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fan is not operating:
Stop the engine immediately and contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
If the fan is operating:
Have the vehicle inspected at the nearest authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer.
5
1KR-FE engine2NR-FKE engine
6
7

6428-2. Steps to take in an emergency
YARIS_F_OM_Europe_OM52A54E
WARNING
■To prevent an accident or injury when inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
● Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fan and belts while the engine is operating.
● Do not loosen the radiator cap or the coolant reservoir cap while the
engine and radiator are hot.
NOTICE
■ When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. Adding
cool coolant to a hot engine too quickly can cause damage to the engine.
■ To prevent damage to the cooling system
Observe the following precautions.
● Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
● Do not use any coolant additives.

6559-1. Specifications
9
Vehicle specifications
YARIS_F_OM_Europe_OM52A54E
Cooling system
Capacity
(Reference)
1KR-FE
engine4.7 L (5.0 qt., 4.1 Imp.qt.)
2NR-FKE
engine
Multidrive
5.7 L (6.0 qt., 5.0 Imp.qt.)
Manual transmission
5.5 L (5.8 qt., 4.8 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• A 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.
Ignition system
Spark plug
MakeDENSO FC16HR-Q8
Gap0.8 mm (0.031 in.)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

682Alphabetical index
YARIS_F_OM_Europe_OM52A54E
Child-protectors ....................... 159
Cigarette lighter ....................... 473
Cleaning............................ 478, 482
Aluminum wheels .................. 479
Exterior.................................. 478
Interior ................................... 482
Seat belts .............................. 483
Clock ................................. 125, 133
Clutch........................................ 657
Condenser ................................ 503
Coolant ..................................... 501
Capacity ................................ 655
Checking ............................... 501
Preparing and checking
before winter....................... 362
Cooling system ........................ 501
Engine overheating ............... 639
CRS (Child Restraint
System) .................................... 62
Cruise control .......................... 325
Warning lights ....................... 584
Warning messages ............... 328
Cup holders .............................. 464
Curtain shield airbags ............... 45
Customizable features ............ 666
Daytime running light
system .................................... 269
Replacing light bulbs ............. 565
Defogger
Outside rear view
mirrors ........................ 442, 453
Rear window ................. 442, 453
Windshield .................... 442, 452Dimensions .............................. 646
Display
Drive information........... 123, 129
Fuel consumption
information.......................... 137
Multi-information
display ........................ 122, 127
RSA (Road Sign Assist)........ 319
Warning messages ............... 581
Do-it-yourself maintenance .... 488
Door lock
Back door.............................. 161
Side doors............................. 154
Smart entry & start system ... 167
Wireless remote control ........ 143
Doors
Back door.............................. 161
Door glasses ......................... 214
Door lock....................... 154, 161
Open door warning buzzer ... 168
Open door warning light........ 584
Outside rear view mirrors...... 211
Rear door child-protector ...... 159
Side doors............................. 154
Side windows ........................ 214
Double locking system ........... 104
Driver’s seat belt reminder
light......................................... 585
Driving ...................................... 220
Break-in tips .......................... 223
Correct driving posture ........... 36
Procedures ........................... 220
Winter drive tips .................... 362
D