2017 TOYOTA YARIS GRMN engine overheat

TABLE OF CONTENTS4
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6-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ..........242
Cleaning and protecting
the vehicle interior ...........247
6-2. Maintenance
Maintenance
requirements....................250
6-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ......................253
Hood ..................................256
Positioning a floor jack .......258
Engine compartment..........260
Tires ...................................271
Replacing the tire ...............274
Tire inflation pressure ........282
Wheels ...............................284
Air conditioning filter ..........286
Electronic key battery ........289
Checking and replacing
fuses ................................292
Light bulbs .........................298
7-1. Essential information
Emergency flashers .......... 316
If your vehicle has to
be stopped in
an emergency ................. 317
7-2. Steps to take in
an emergency
If your vehicle needs to
be towed ......................... 319
If you think something is
wrong .............................. 325
Fuel pump shut off
system............................. 326
If a warning light turns on
or a warning buzzer
sounds ............................ 327
If a warning message is
displayed ......................... 332
If you have a flat tire .......... 336
If the engine will not
start ................................. 354
If the electronic key does
not operate properly ........ 356
If the vehicle battery is
discharged ...................... 359
If your vehicle overheats ... 363
If the vehicle becomes
stuck................................ 367
6Maintenance and care7When trouble arises

11Pictorial index
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Windshield wiper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 202
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 216
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . P. 244
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 207
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 207
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 373
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 271
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 376
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 216
Checking/rotation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 271
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 336
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 256
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 256
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 373
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 363
Camera*
Headlights/front position lights/
daytime running lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 196
Front turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 194
Front fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 201
Side turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 194
Tail light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 196
Rear turn signal lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 194
Stop lights
Hill-start assist control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 196
Rear fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 201
Back-up light
Shifting the shift lever to R. . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 192
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 196
Light bulbs of the exterior lights for driving
(Replacing method: P. 298, Watts: P. 377)
*: Refer to “Navigation and multimedia system Owner’s manual”.

992. Instrument cluster
2
Instrument cluster
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■ Outside temperature display
● In the following situations, the correct outside temperature may not be dis-
played, or the display may take longer than normal to change.
• When stopped, or driving at low speeds (less than 20 km/h [12 mph])
• When the outside temperature has changed suddenly (at the entrance/
exit of a garage, tunnel, etc.)
● When “--” or “E” is displayed, the system may be malfunctioning.
Take your vehicle to any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
● The temperature range that can be displayed is from -40°C (-40°F) to 50°C
(122°F).
NOTICE
■ To prevent damage to the engine and its components
● Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
● The engine may be overheating if the engine coolant temperature gauge is
in the red zone (“H”). In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. ( P. 363)

1784-1. Before driving
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WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■ When driving the vehicle
● Do not drive if you are unfamiliar with the location of the brake and accel-
erator pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake
pedal will result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to difficulty
in operating the pedals. Make su re to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the
vehicle only slightly. This allows you to depress the brake and accelera-
tor pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake
pedal using your left foot may delay response in an emergency, result-
ing in an accident.
● Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. These hot
parts may cause a fire if there is any flammable material nearby.
● During normal driving, do not turn off the engine. Turning the engine off
while driving will not cause loss of steering or braking control, but the
power assist to these systems will be lost. This will make it more difficult to
steer and brake, so you should pull over and stop the vehicle as soon as it
is safe to do so.
However, in the event of an emergency, such as if it becomes impossible
to stop the vehicle in the normal way: P. 317
● Use engine braking (downshift) to maintain a safe speed when driving
down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. ( P. 1 9 2 )
● Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
● Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle.

1804-1. Before driving
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WARNING
■If you hear a squealing or scraping noise (brake pad wear indicators)
Have the brake pads checked and replaced by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer as soon as
possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle w hen the wear limits of the brake pads
and/or those of the brake discs are exceeded.
■ When the vehicle is stopped
● Do not race the engine.
If the vehicle is in any gear other than N, the vehicle may accelerate sud-
denly and unexpectedly, causing an accident.
● If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.
● Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.
■ When the vehicle is parked
● Do not leave glasses, cigarette lighters, spray cans, or soft drink cans in
the vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a
fire.
• The temperature inside the vehicle may cause the plastic lenses and
plastic material of glasses to deform or crack.
• Soft drink cans may rupture, causing the contents to spray over the
interior of the vehicle, and may also cause a short circuit in the vehicle’s
electrical components.
● Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a
place such as the glove box or on the floor, it may be lit accidentally when
luggage is loaded or the seat is adjusted, causing a fire.

1814-1. Before driving
4
Driving
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WARNING
●Do not attach adhesive discs to the windshield or windows. Do not place
containers such as air fresheners on the instrument panel or dashboard.
Adhesive discs or containers may act as lenses, causing a fire in the vehi-
cle.
● Do not leave a door or window open if the curved glass is coated with a
metallized film such as a silver-colored one. Reflected sunlight may cause
the glass to act as a lens, causing a fire.
● Do not touch the exhaust pipes while the engine is running or immediately
after turning the engine off.
Doing so may cause burns.
■ When taking a nap in the vehicle
Always turn the engine off. Otherwise, if you accidentally move the shift
lever or depress the accelerator pedal, this could cause an accident or fire
due to engine overheating. Additionally, if the vehicle is parked in a poorly
ventilated area, exhaust gases may collect and enter the vehicle, leading to
death or a serious health hazard.
■ When braking
● When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause
one side of the vehicle to brake differently than the other side. Also, the
parking brake may not securely hold the vehicle.
● If the power brake assist function does not operate, do not follow other
vehicles closely and avoid hills or sharp turns that require braking.
In this case, braking is still possible, but the brake pedal should be
depressed more firmly than usual. Also, the braking distance will increase.
Have your brakes fixed immediately.
● Do not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted
brakes.
● The brake system consists of 2 individual hydraulic systems; if one of the
systems fails, the other will still operate. In this case, the brake pedal
should be depressed more firmly than usual and the braking distance will
increase. Have your brakes fixed immediately.

1894-2. Driving procedures
4
Driving
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■Auto power off function
If the vehicle is left in ACCESSORY or IGNITION ON mode (the engine is not
running) for more than an hour, the engine switch will automatically turn off.
However, this function cannot entirely prevent battery discharge. Do not leave
the vehicle with the engine switch in ACCESSORY or IGNITION ON mode for
long periods of time when the engine is not running.
■ Electronic key battery depletion
 P. 11 4
■ Conditions affecting operation
 P. 128
■ Notes for the entry function
 P. 129
■ If the engine does not start
The engine immobilizer system may not have been deactivated. ( P. 78)
Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
■ Steering lock
After turning the engine switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function. Operating the
engine switch again automatically cancels the steering lock.
■ When the steering lock cannot be released
■ Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the engine is turned on and off repeatedly in a short period of time.
In this case, refrain from operating the engine. After about 10 seconds, the
steering lock motor will resume functioning.
■ If the electronic key battery is depleted
 P. 289
“Steering lock active.” will be displayed on
the multi-information display.
Press the engine switch while turning the
steering wheel left and right.

2134-5. Using the driving support systems
4
Driving
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■ Sounds and vibrations caused by the ABS, brake assist, VSC, TRC, and
hill-start assist control systems
● A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the engine is started or just after the vehicle
begins to move. This sound does not indicate that a malfunction has
occurred in any of these systems.
● Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
■ Automatic reactivation of TRC and VSC systems
After turning the TRC and VSC systems off, the systems will be automatically
re-enabled in the following situations:
● When the engine switch is turned off
● If only the TRC system is turned off, the TRC will turn on when vehicle
speed increases
If both the TRC and VSC systems are turned off, automatic re-enabling will
not occur when vehicle speed increases.
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result.
Should this occur, refrain from excessive steering input or stop the vehicle
and turn the engine off. The EPS system should return to normal within 10
minutes.