overheating TOYOTA YARIS 2019 Owners Manual (in English)

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YARIS SEDAN_OM_OM99S50z_(U)
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5-1. Essential InformationIntroduction ....................... 432
5-2. Scheduled Maintenance Maintenance Monitor......... 434
5-3. Owner Maintenance Owner Maintenance Precautions ..................... 437
Hood.................................. 439
Engine Compartment Overview ......................... 441
Engine Oil.......................... 442
Engine Coolant.................. 445
Brake/Clutch Fluid ............. 448
Window Washer Fluid ....... 449
Body Lubrication ............... 450
Wiper Blades ..................... 451
Battery ............................... 454
Key Battery Replacement ................... 456
Tires .................................. 459
Light Bulbs ........................ 465
Fuses ................................ 475
5-4. Appearance Care Exterior Care ..................... 482
Interior Care ...................... 490 6-1. Parking in an Emergency
Parking in an Emergency ...................... 496
6-2. Flat Tire Spare Tire and Tool Storage ............................ 497
Changing a Flat Tire .......... 501
6-3. Battery Runs Out Jump-Starting .................... 511
6-4. Emergency Starting Starting a Flooded Engine ............................. 515
Push-Starting ..................... 516
6-5. Overheating Overheating ....................... 517
6-6. Emergency Towing Towing Description ............ 519
Tiedown Hooks .................. 520
6-7. Warning/Indicator Lights and Warning Sounds
If a Warning Light Turns On or Flashes .................. 522
Message Indicated on Display............................. 533
Warning Sound is Activated.......................... 535
6-8. When Trunk Lid Cannot be Opened
When Trunk Lid Cannot be Opened....................... 539
5Maintenance and Care6If Trouble Arises

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YARIS SEDAN_OM_OM99S50z_(U)
2-9. Driving Tips
Rocking the Vehicle
If you must rock the vehicle to free it from snow, sand or mud, depress
the accelerator slightly and slow ly move the shift lever from 1 (D) to R
position.
WARNING
■ Do not spin the wheels at more th an 35 mph (56 km/h), and do not
allow anyone to stand behind a wheel when pushing the vehicle
When the vehicle is stuck, spinning the wheels at high speed is dangerous.
The spinning tire could overheat and explode. This could cause serious
injuries.
NOTICE
Too much rocking may cause engine overheating, transaxle failure, and tire
damage.

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YARIS SEDAN_OM_OM99S50z_(U)
3-3. Transaxle
■Passing
For extra power when passing another vehicle or climbing steep
grades, depress the accelerator fully. The transaxle will shift to a
lower gear, depending on vehicle speed.
Some models:
The accelerator pedal may initially feel heavy as it is being d epressed,
then feel lighter as it is depressed further. This change in pe dal force
aids the engine control system in determining how much the acce lerator
pedal has been depressed for performing kickdown, and functions to
control whether or not kickdown should be performed.
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Climbing steep gra des from a stop
To climb a steep grade from a stopped position: Depress the brake pedal.
Shift to D or M1, depending on the load weight and grade steep-
ness.
Release the brake pedal wh ile gradually accelerating.
■Descending steep grades
When descending a steep grade, shift to lower gears, depending on
load weight and grade steepnes s. Descend slowly, using the
brakes only occasionally to p revent them from overheating.
Driving Tips
WARNING
■Do not let the vehicle move in a direction opposite to the direction
selected by the selector lever
Do not let the vehicle move backward with the selector lever in a forward
position, or do not let the vehicle move forward with the selec tor lever in the
reverse position. Otherwise, the engine may stop, causing the loss of the
power brake and power steering f unctions, and make it difficult to control
the vehicle which could result in an accident.
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YARIS SEDAN_OM_OM99S50z_(U)
3-4. Switches and Controls
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When Driving
Windshield Wipers and Washer
The ignition must be switched ON to use the wipers.
Because heavy ice and snow can jam the wiper blades, the wiper motor is
protected from motor breakdown, overheating and possible fire b y a circuit
breaker. This mechanism will automatically stop operation of th e blades, but
only for about 5 minutes.
If this happens, turn off the wiper switch and park off the rig ht-of-way, and
remove the snow and ice.
After 5 minutes, turn on the switch and the blades should opera te normally. If
they do not resume functioning, consult your Toyota dealer as s oon as possi-
ble. Drive to the side of the road and park off the right-of-wa y. Wait until the
weather clears before trying to drive with the wipers inoperative.
WARNING
■ Use only windshield washer fluid or plain water in the reservoir
Using radiator antifreeze as washer fluid is dangerous. If sprayed on the
windshield, it will dirty the windshield, affect your visibilit y, and could result
in an accident.
■ Only use windshield washer fluid mixed with anti-freeze protect ion in
freezing weather conditions
Using windshield washer fluid without anti-freeze protection in freezing
weather conditions is dangerous as it could freeze on the winds hield and
block your vision which could cause an accident. In addition, m ake sure the
windshield is sufficiently warmed using the defroster before spraying the
washer fluid.

YARIS SEDAN_OM_OM99S50z_(U)
2534-1. Climate Control System
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Interior Features
Set the mode selector dial to the position.
Set the temperature control dial to the cold position.
Set the fan control dial to the desired speed.
Turn on the air conditioner by pressing the A/C switch.
After cooling begins, adjust the fan control dial and temperature
control dial as needed to maintain maximum comfort.
● When maximum cooling is desired, set the temperature control di al to the
extreme cold position and set the air intake selector to the re circulated air
position, then turn the fan control dial fully clockwise.
● If warmer air is desired at floor level, set the mode selector dial to the
position and adjust the temperature control dial to maintain ma ximum com-
fort.
● The air to the floor is warmer than air to the face (except when the tempera-
ture control dial is set at the extreme hot or cold position).
Cooling
NOTICE
If the air conditioner is used while driving up long hills or in heavy traffic,
monitor the engine coolant temperature warning light to see if it is illumi-
nated or flashing ( P. 154).
The air conditioner may cause engine overheating. If the warnin g light is
illuminated or flashing, turn the air-conditioning off ( P. 517).
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YARIS SEDAN_OM_OM99S50z_(U)
6If Trouble Arises
6-1. Parking in an EmergencyParking in an Emergency ...................... 496
6-2. Flat Tire Spare Tire and Tool Storage ........................... 497
Changing a Flat Tire ......... 501
6-3. Battery Runs Out Jump-Starting.................... 511
6-4. Emergency Starting Starting a Flooded Engine............................. 515
Push-Starting .................... 516
6-5. Overheating Overheating ...................... 517
6-6. Emergency Towing Towing Description ........... 519
Tiedown Hooks ................. 520
6-7. Warning/Indicator Lights and Warning Sounds
If a Warning Light Turns On or Flashes ................. 522
Message Indicated on Display ............................ 533
Warning Sound is Activated ......................... 535
6-8. When Trunk Lid Cannot be Opened
When Trunk Lid Cannot be Opened ...................... 539

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YARIS SEDAN_OM_OM99S50z_(U)
6-5. Overheating
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If Trouble Arises
Overheating
If the high engine coolant temperature warning light turns on:
Drive safely to the side of the road and park off the right-of-way.
Put a vehicle with an automatic t ransaxle in park (P), a manual tran-
saxle in neutral.
Apply the parking brake.
Turn off the air conditioner.
Check whether coolant or steam is escaping from the engine com-
partment.
If steam is coming from the engine compartment
Do not go near the front of t he vehicle. Stop the engine.
Wait until the steam dissipates, then open the hood and start the
engine.
If neither coolant nor steam is escaping
Open the hood and idle t he engine until it cools.
Make sure the cooling fan is operating, then turn off the engin e after
the temperature has decreased.
When cool, check th e coolant level.
If it is low, look for coolant lea ks from the radiator and hoses.
■If you find a leak or other damage, or if coolant is still leak ing:
Stop the engine and call your Toyota dealer.
Cooling fan
Cooling system cap
Coolant reservoir
If the high engine coolant temperature warning light turns on,
the vehicle loses power, or you hear a loud knocking or pinging
noise, the engine is probably too hot.
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5186-5. Overheating
YARIS SEDAN_OM_OM99S50z_(U)■
If you find no problems, the engine is cool, and no leaks are
obvious:
Carefully add coolant as required (
P. 445).
WARNING
■ Pull over to a safe location, then switch the ignition to off and
make sure the fan is not running before attempting to work near the
cooling fan
Working near the cooling fan when it is running is dangerous. T he fan could
continue running indefinitely even if the engine has stopped an d the engine
compartment temperature is high. You could be hit by the fan an d seriously
injured.
■ Do not remove either cooling system cap when the engine and
radiator are hot
When the engine and radiator are hot, scalding coolant and steam may
shoot out under pressure and cause serious injury.
■ Open the hood ONLY after steam is no longer escaping from the e ngine
Steam from an overheated engine is dangerous. The escaping stea m could
seriously burn you.
NOTICE
● If the cooling fan does not operate while the engine is running, the engine
temperature will increase. Stop the engine and call your Toyota dealer.
● If the engine continues to overheat or frequently overheats, ha ve the cool-
ing system inspected. The engine could be seriously damaged unl ess
repairs are made. Consult your Toyota dealer.

5246-7. Warning/Indicator Lights and Warning Sounds
YARIS SEDAN_OM_OM99S50z_(U)
(Red)
High Engine Coolant Temperature Warning Light
The light flashes when the engine coolant temperature is
extremely high, and illuminates when the engine coolant
temperature increases further.
Handling Procedure:
• Flashing light
Drive slowly to reduce engine load until you can find a
safe place to stop the vehicle and wait for the engine to
cool down.
• Illuminated light This indicates the possibility of overheating. Park the
vehicle in a safe place immediately and stop the engine.
Refer to Overheating P. 517.
Power Steering Malfunction Indicator Light
The light illuminates/flashes if the electric power steering
has a malfunction.
If the light illuminates/flashes, stop the vehicle in a safe
place and do not operate the steering wheel. There is no
problem if the light turns off after a while. Contact your
Toyota dealer if the light illuminates/flashes continuously.
SignalWarning

595Alphabetical index
YARIS SEDAN_OM_OM99S50z_(U)
Interior Care ............................. 490Cleaning the Lap/Shoulder
Belt Webbing ...................... 493
Cleaning the Upholstery and Interior Trim ........................ 491
Cleaning the Window Interiors .............................. 493
Dashboard Precautions ........ 490
Interior Lights .......................... 421 Map Lights ............................ 421
Overhead Lights ................... 421
Trunk Light ............................ 422
Jack........................................... 497
Jump-Starting .......................... 511
Key Left-in-trunk Compartment Warning Beep (With the
advanced keyless
function) ................................. 537
Key Left-in-vehicle Warning
Beep (With the advanced
keyless function) ................... 538
Key removed from vehicle warning beep ......................... 537
Key Suspend Function.............. 94
Keyless Entry System ............... 88
Keys ............................................ 86 Key suspend function ............. 94
Smart Key ............................... 89
Label Information .................... 576
Lane-Change Signals .............. 189
Laser Sensor ............................ 223
Leaving Home Light ................ 186
Light Bulbs Replacement......................... 465
Specifications........................ 581 Lighting Control ...................... 181
Lights-on reminder.................. 535
Lubricant Quality ..................... 579
Maintenance
Information............................ 432
Maintenance Monitor .............. 434
Manual Transaxle
Operation ............................... 166
Recommendations for
shifting ................................ 168
Map Lights ............................... 421
Message Indi cated on
Display ................................... 533
Meters and Gauges ................. 154
Mirror Defogger ....................... 196
Mirrors Outside Mirrors ..................... 120
Rearview Mirror .................... 121
Odometer and Trip Meter ...................................... 155
Outside Mirrors........................ 120
Outside Te mperature
Display ................................... 159
Overhead Console................... 427
Overhead Lights ...................... 421
Overheating ............................. 517
Overloading ............................. 141
Owner Maintenance Closing the Hood .................. 440
Engine Compartment
Overview ............................ 441
Key battery replacement....... 456
Opening the Hood ................ 439
Owner Maintenance Precautions ........................ 437
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