2017 TOYOTA YARIS cooling

3307-2. Steps to take in an emergency
If your vehicle overheats
●The high engine coolant temperature warning light ( →P. 302)
comes on or flashes, or a loss of engine power is experienced. (For
example, the vehicle sp eed does not increase.)
● 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 sufficient ly, 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 coolant level is satisfactory
if it is between the “FULL” and
“LOW” lines on the reservoir.Reservoir
“FULL”
“LOW”
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
1
2
4
1
2
3

3317-2. Steps to take in an emergency
7
When trouble arises
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.
5
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.
6
7

3327-2. Steps to take in an emergency
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.

3418-1. Specifications
8
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 labels:
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.

386Alphabetical index
Care................................... 224, 227Aluminum wheels.................. 225
Exterior ................................. 224
Interior................................... 227
Seat belts .............................. 228
Chains....................................... 198
Child restraint system ............... 53 Infant seats, definition ............. 54
Infant seats, installation .......... 59
Convertible seat, definition ..... 54
Convertible seat,installation ...................... 59, 60
Installing CRS with LATCH
anchors................................. 58
Installing CRS with seat belts .............................. 59
Installing CRS with top tether strap ........................... 63
Booster seats, definition ......... 54
Booster seats, installation ....... 62
Child safety ................................ 52 Airbag precautions .................. 36
Back door precautions ............ 95
Battery precautions ............... 250
Child restraint system ............. 53
How your child should wear
the seat belt .......................... 29
Installing child restraints ......... 57
Power window lock switch .... 113
Power window precautions ... 114
Rear door child-protectors ...... 92
Removed key battery
precautions ......................... 272
Seat belt precautions .............. 30
Child-protectors......................... 92
Cleaning ........................... 224, 227 Aluminum wheels.................. 225
Exterior ................................. 224
Interior................................... 227
Seat belts .............................. 228 Clock........................................... 81
Clutch ....................................... 343
Condenser................................ 248
Coolant ..................................... 246
Capacity................................ 341
Checking............................... 246
Preparing and checking before winter ...................... 197
Cooling system........................ 246 Engine overheating............... 330
CRS (Child Restraint System) .................................... 53
Cruise control .......................... 188
Warning lights ....................... 304
Cup holders ............................. 215
Curtain shield airbags............... 34
Customizable features ............ 363
C