engine coolant TOYOTA YARIS HYBRID 2017 User Guide

4048-2. Steps to take in an emergency
YARIS_HV_OM_Europe_OM52G76E
If a war ning light tur ns on or a warning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(Red)
Brake system warning light (warning buzzer)*1
• Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released, the system is operating normally.
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Continuing to drive the vehicle may be dangerous.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low.
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
(Red warning light flashers or comes on)
High engine coolant temperature warning light
Indicates that the engine is overheating.
As the coolant temperature rises, it changes from flashing
to steady on.
 P. 455

4558-2. Steps to take in an emergency
8
When trouble arises
YARIS_HV_OM_Europe_OM52G76E
If your vehicle overheats
●The high engine coolant temperature warning light (P. 404)
comes on or flashes, or a loss of hybrid system power is experi-
enced. (For example, the vehicle speed does not increase.)
● If the hybrid system overheat warning light (P. 408) comes on.
● Steam comes out from under the hood.
■If the high engine coolant temperature warning light comes on
or flashes
Stop the vehicle in a safe place and turn off the air conditioning
system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently,
inspect the hoses and radia-
tor core (radiator) for any
leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact any
authorized Toyota dealer or
repairer, or another duly quali-
fied and equipped professional.
The following may indicate that your vehicle is overheating:
Correction procedures
1
2
3
1
2

4588-2. Steps to take in an emergency
YARIS_HV_OM_Europe_OM52G76E
Start the hybrid system and check for the hybrid system overheat
warning light.
If the warning light does not go off:
Stop the hybrid system and contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
If the warning light goes off:
Have the vehicle inspected at the nearest authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
WARNING
■ To prevent an accident or injury when inspecting under the hood of
your vehicle
● 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, caus-
ing serious injuries such as burns.
● Check that the “READY” indicator is off.
● On hybrid vehicles, the gasoline engine may automatically start, or the
cooling fan may suddenly operate even if the gasoline engine stops. Do
not touch or approach rotating parts such as the fan, which may lead to fin-
gers or clothing (especially a tie, a scarf or a muffler) getting caught,
resulting in serious injury.
● Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
Serious injuries, such as burns, may result from hot coolant and steam
released under pressure.
6

4598-2. Steps to take in an emergency
8
When trouble arises
YARIS_HV_OM_Europe_OM52G76E
NOTICE
■When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem too quickly can cause damage to the hybrid system.
■ 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.

4699-1. Specifications
9
Vehicle specifications
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Cooling system
Capacity
(Reference)
Gasoline engine
4.5 L (4.8 qt., 4.0 Imp.qt.)
Power control unit
1.6 L (1.7 qt., 1.4 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 FK16R-A8
Gap0.8 mm (0.031 in.)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
12-volt battery
Open voltage* at
20 C (68F):
12.5 V or over Fully charged
11 . 0  12.5 V Half charged
Under 11.0 V Discharged
(*: Voltage is checked 20 minutes after the
hybrid system and all lights are turned off.)
Charging rates 3  4 A max.

491Alphabetical index
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Engine
“ACC” position....................... 179
Accessory mode ................... 183
Compartment ........................ 335
Engine switch ................ 178, 182
Hood ..................................... 331
How to start
the hybrid system ....... 178, 182
Identification number............. 465
If your vehicle has to be
stopped in an emergency ... 395
Ignition switch
(power switch) ............ 178, 182
Overheating .......................... 455
Power switch ................. 178, 182
Engine coolant ......................... 339
Capacity ................................ 469
Checking ............................... 339
Preparing and checking
before winter....................... 253
Engine coolant temperature
warning light .......................... 404
Engine oil.................................. 336
Capacity ................................ 467
Checking ............................... 336
Oil pressure warning light ..... 404
Preparing and checking
before winter....................... 253
Engine switch .................. 178, 182
Auto power off function ......... 184
Changing the power switch
modes................................. 183
If your vehicle has to be stopped
in an emergency................. 395
Starting the hybrid
system ........................ 178, 182
EPS (Electric Power
Steering)................................. 244
Function ................................ 244
Warning light ......................... 405
EV drive mode.......................... 188
EV indicator................................ 77
Flat tire.............................. 415, 430
Floor mats .................................. 30
Fluid
Brake .................................... 470
Transmission ........................ 470
Washer ................................. 341
Fog lights ................................. 201
Replacing light bulbs..... 381, 389
Switch ................................... 201
Wattage ................................ 473
Follow me home system ......... 197
Front passenger’s seat belt
reminder light ........................ 407
Front position lights ................ 196
Light switch ........................... 196
Replacing light bulbs..... 383, 390
Wattage ................................ 473
F

501Alphabetical index
YARIS_HV_OM_Europe_OM52G76E
Warning lights ............................ 93
ABS ....................................... 405
Automatic High Beam ........... 406
Brake system ........................ 404
Charging system ................... 404
Cruise control indicator ......... 407
Electric power steering
system ................................ 405
High engine coolant
temperature ........................ 404
Hybrid system ....................... 405
Hybrid system overheat ........ 408
LDA
(Lane Departure Alert) ........ 407
Low engine oil pressure ........ 404
Low fuel level ........................ 407
Low traction battery............... 407
Malfunction indicator lamp .... 405
Open door ............................. 407
P position request ................. 408
PCS (Pre-Crash Safety
system)............................... 406
Seat belt reminder light ......... 407
Slip indicator ......................... 406
Smart entry & start system ... 407
SRS ...................................... 405
Tire pressure......................... 408
Washer.............................. 203, 207
Checking ............................... 341
Preparing and checking
before winter....................... 253
Switch ........................... 203, 207
Washing and waxing ............... 318
Weight....................................... 464
Wheels ...................................... 364
Replacing .............................. 415
Size ....................................... 471
Window glasses....................... 162
Window lock switch ................ 162