cooling TOYOTA YARIS HATCHBACK 2018 User Guide

4548-2. Steps to take in an emergency
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the air conditioning system on to check
that the radiator cooling fan opera tes 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 your Toyota dealer.
If the fan is operating:
Have the vehicle in spected at the nearest Toyota dealer.
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4558-2. Steps to take in an emergency
8
When trouble arises
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 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.

4659-1. Specifications
9
Vehicle specifications
Oil viscosity (5W-30 is explained here as an example): • The 5W in 5W-30 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 30 in 5W-30 indicates the viscosity characteristic of the oil when the oil is at high temperature. An oil with a higher viscosity
(one with a higher value) may be better suited if the vehicle is
operated at high speeds, or under extreme load conditions.
How to read oil container label:
The International Lubricant
Specification Advisory Commit-
tee (ILSAC) Certification Mark
is added to some oil containers
to help you select the oil you
should use.
Cooling system
Capacity
(Reference)
Automatic transmission
4.9 qt. (4.6 L, 4.0 Imp.qt.)
Manual transmission
5.0 qt. (4.7 L, 4.1 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.

511Alphabetical index
Child-protectors......................... 99
Cleaning ........................... 340, 344Aluminum wheels.................. 341
Exterior ................................. 340
Interior................................... 344
Seat belts .............................. 345
Clock ........................................... 87
Clutch ....................................... 467
Condenser ................................ 365
Coolant ..................................... 364
Capacity ................................ 465
Checking ............................... 364
Preparing and checking before winter....................... 221
Cooling system ........................ 364 Engine overheating ............... 453
CRS (Child Restraint System) .................................... 57
Cruise control .......................... 201
Warning lights ....................... 425
Cup holders.............................. 331
Curtain shield airbags ............... 36
Customizable features ............ 488 Deck board ............................... 335
Defogger
Outside rear view mirrors ..... 322
Rear window ......................... 322
Windshield ............................ 321
Dimensions .............................. 460
Display Drive information .................... 86
Fuel consumption information ........................... 89
Multi-information display ......... 85
Do-it-yourself maintenance .... 353
Door lock Back door ............................. 101
Side doors .............................. 96
Wireless remote control .......... 93
Doors Back door ............................. 101
Door glasses......................... 122
Door lock ................................ 96
Open door warning buzzer ... 425
Open door warning light ....... 425
Outside rear view mirrors ..... 120
Rear door child-protector ........ 99
Side doors .............................. 96
Side windows........................ 122
Driver’s seat belt reminder light ........................................ 425
Driving ...................................... 126 Break-in tips.......................... 129
Correct driving posture ........... 26
Procedures ........................... 126
Winter drive tips .................... 221D
*: For vehicles with Entune Audio Plus,
refer to the “MULTIMEDIA SYSTEM OWNER’S MANUAL”