heating TOYOTA YARIS 2018 User Guide

3966-1. Using the air conditioning system and defogger
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Seat heaters
: If equipped
WARNING
■Burns
● Use caution when seating the following persons in a seat with the seat
heater on to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the physically chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
● Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature
of the seat and may lead to overheating.
● Do not use the seat heater more than necessary. Doing so may cause
minor burns or overheating.
NOTICE
■ To prevent seat heater damage
Do not put heavy objects that have an uneven surface on the seat and do
not stick sharp objects (needles, nails, etc.) into the seat.
■ To prevent 12-volt battery discharge
Turn the seat heaters off when the hybrid system is off.

5188-2. Steps to take in an emergency
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*4
*5
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 retailer or Toyota autho-
rized repairer, or any reliable repairer.
*4
(Red warning light flashers or comes on)
*5
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. 581
*4
Hybrid system warning light (warning buzzer)
Indicates a malfunction in the hybrid system.
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
Malfunction indicator lamp
Indicates a malfunction in:
• The hybrid system;
• The hybrid transmission control system;
• The electronic engine control system;
• The electronic throttle control system; or
• The emission control system.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Warning lightWarning light/Details/Actions

5818-2. Steps to take in an emergency
8
When trouble arises
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If your vehicle overheats
●Vehicles with monochrome display: The high engine coolant tem-
perature warning light ( P. 518) comes on or flashes, or a loss of
hybrid system power is experienced. (For example, the vehicle
speed does not increase.)
Vehicles with color display:
• The needle of the engine coolant temperature gauge ( P. 1 1 7 )
enters the red zone or a loss of hybrid system power is experi-
enced.
(For example, the vehicle speed does not increase.)
• The warning message indicating overheat is shown on the multi-
information display. ( P. 531)
● Vehicles with monochrome display: If the hybrid system overheat
warning light ( P. 522) comes on.
Vehicles with color display: If the warning message indicating over-
heat is shown on the multi-information display. ( P. 535)
● Steam comes out from under the hood.
The following may indicate that your vehicle is overheating:

618Alphabetical index
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Care ................................... 414, 419
Aluminum wheels .................. 415
Exterior.................................. 414
Interior ................................... 419
Seat belts .............................. 423
CD player*................................ 330
Chains ....................................... 315
Child restraint system ............... 60
Fixed with a seat belt .............. 70
Fixed with an ISOFIX
rigid anchor........................... 77
Points to remember................. 61
Riding with children ................. 59
Types of child restraint
system installation
method..... ............................. 65
Using an anchor bracket ......... 83
Child safety ................................ 59
12-volt battery
precautions ................. 449, 580
Airbag precautions .................. 45
Back door precautions .......... 161
Child restraint system ............. 60
How your child should wear
the seat belt .......................... 39
Installing child restraints ......... 65
Power window lock switch .... 199
Power window precautions ... 202
Rear door child-protectors .... 157
Removed key battery
precautions......................... 480
Seat belt precautions .............. 41
Seat heater precautions........ 396
Child-protectors....................... 157
Cigarette lighter ....................... 409
Cleaning ........................... 414, 419
Aluminum wheels.................. 415
Exterior ................................. 414
Interior................................... 419
Seat belts .............................. 423
Clock ................................. 123. 130
Condenser ................................ 443
Consumption screen ............... 133
Coolant ..................................... 441
Capacity ................................ 596
Checking ............................... 441
Preparing and checking
before winter....................... 313
Cooling system ........................ 441
Hybrid system overheating ... 581
C

620Alphabetical index
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Electric motor
Location .................................. 86
Specification.......................... 592
Electric Power Steering
(EPS) ....................................... 303
Function ................................ 303
Warning light ......................... 519
Electronic key .......................... 140
Battery-saving function ......... 167
If the electronic key does not
operate properly ................. 573
Replacing the battery ............ 477
Emergency brake signal ......... 304
Emergency flashers................. 506
Emergency, in case of
If a warning message
is displayed ......................... 531
If the 12-volt battery is
discharged .......................... 576
If the electronic key does
not operate properly ........... 573
If the hybrid system
will not start......................... 571
If the warning buzzer
sounds ................................ 517
If the warning light turns on ... 517
If you have a flat tire ..... 537, 556
If you lose your key ............... 143
If you think something is
wrong.................................. 516
If your vehicle becomes
stuck ................................... 587
If your vehicle has to be
stopped in an emergency ... 507
If your vehicle needs to be
towed .................................. 509
If your vehicle overheats ....... 581
Energy monitor ........................ 133
Engine
“ACC” position ...................... 217
Accessory mode ................... 222
Compartment ........................ 437
Engine switch................ 216, 220
Hood ..................................... 433
How to start
the hybrid system ....... 216, 220
Identification number ............ 591
If your vehicle has to be
stopped in an emergency ... 507
Ignition switch
(power switch) ............ 216, 220
Overheating .......................... 581
Power switch................. 216, 220
E

623Alphabetical index
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Hybrid battery air vent............... 91
Hybrid system ............................ 86
Emergency shut off system..... 91
Energy monitor/consumption
screen................................. 133
EV drive mode ...................... 229
High voltage components ....... 90
Hybrid System Indicator ........ 115
Hybrid system precautions...... 90
Hybrid vehicle driving tips ..... 310
If the hybrid system will
not start............................... 571
Overheating .......................... 581
Power switch ................. 216, 220
Regenerative braking .............. 88
Starting the hybrid
system ........................ 216, 220
Hybrid System Indicator ......... 115
Hybrid system overheat
warning light .......................... 522
Hybrid system overheat
warning message .................. 531
Hybrid transmission ................ 232
Identification ............................ 591
Engine................................... 591
Vehicle .................................. 591
Ignition switch
(Power switch) ............... 216, 220
Auto power off function ......... 225
Changing power switch
positions ............................. 217
Changing the power switch
modes................................. 222
If your vehicle has to be
stopped in an emergency ... 507
Starting the hybrid
system ........................ 216, 220
Ignition switch light
(Power switch light) .............. 398
Illuminated entry system ........ 399
Immobilizer system ................... 96
Indicators ................................. 111
Initialization
Items to initialize ................... 610
Tire pressure warning
system ................................ 454
Inside rear view mirror ............ 193
Instrument cluster light
control ............................ 115, 118
Interior lights............................ 398
Switch ................................... 398
Wattage ................................ 600
ISOFIX rigid anchors ................. 65
I
*: For vehicles with navigation/multimedia system, refer to
“Navigation and multimedia system Owner’s manual”.

625Alphabetical index
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Maintenance
Do-it-yourself
maintenance ....................... 430
Maintenance data ................. 590
Maintenance requirements ... 427
Malfunction indicator lamp ..... 518
Manual headlight
leveling dial ............................ 240
Meter ................................. 114, 117
Indicators .............................. 111
Instrument cluster light
control......................... 115, 118
Meters ........................... 114, 117
Multi-information
display ........................ 121, 125
Warning lights ....................... 109
Warning message ................. 531
Mirrors
Inside rear view mirror .......... 193
Outside rear view mirror
defoggers............................ 390
Outside rear view mirrors ...... 196
Vanity mirrors ........................ 407
MP3 disc*................................. 330
Multi-information
display ............................ 121, 125
Drive information ........... 122, 127
Energy monitor...................... 133
RSA (Road Sign Assist) ........ 293
Settings ................................. 128
Switching the display .... 121, 126
Warning message ................. 531
Multimedia system*
Navigation system*
Odometer.......................... 117, 122
Oil
Engine oil .............................. 593
Opener
Back door.............................. 160
Fuel filler door ....................... 254
Hood ..................................... 433
Outside rear view mirrors ....... 196
Adjusting and folding ............ 196
Outside rear view mirror
defoggers ........................... 390
Outside temperature
display ............................ 117, 121
Overheating.............................. 581
P position request warning
light......................................... 523
Parking brake ........................... 237
Operation .............................. 237
Parking brake engaged
warning buzzer ................... 517
PCS (Pre-Crash Safety
system)................................... 262
Function ................................ 262
PCS switch ........................... 266
Warning light ......................... 519
Warning messages ............... 277
MN
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P
*: For vehicles with navigation/multimedia system, refer to
“Navigation and multimedia system Owner’s manual”.