engine overheat TOYOTA YARIS 2021 Owners Manual

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YARIS(HB) Owner's Manual_Europe_MK0001_en
TABLE OF CONTENTS
1
6
5
4
3
2
8
7
7-2. Steps to take in an emergency
If your vehicle needs to be towed
.......................................... 363
If you think something is wrong
.......................................... 366
Fuel pump shut off system .. 367
If a warning light turns on or a
warning buzzer sounds..... 368
If a warning message is dis-
played ............................... 377
If you have a flat tire (vehicles
with an emergency tire punc-
ture repair kit) ................... 379
If you have a flat tire (vehicles
with a spare tire) ............... 389
If the engine will not start .... 397
If you lose your keys ........... 399
If the electronic key does not
operate properly (vehicles with
a smart entry & start system)
.......................................... 399
If the vehicle battery is dis-
charged............................. 401
If your vehicle overheats ..... 405
If the vehicle becomes stuck
.......................................... 408
8-1. Specifications
Maintenance data (fuel, oil level,
etc.)................................... 410
Fuel information .................. 420
8-2. Customization
Customizable features ........ 422
8-3. Initialization
Items to initialize ................. 431
8-4. Certifications
Certifications ....................... 432
What to do if... (Troubleshooting)
.......................................... 552
Alphabetical Index .............. 555
8Vehicle specifications
Index

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YARIS(HB) Owner's Manual_Europe_MK0001_en
Pictorial index
Refueling method .............................................................................P.187
Fuel type/fuel tank capacity .............................................................P.413
Tires ................................................................................................P.330
Tire size/inflation pressure ...............................................................P.417
Winter tires/tire chains .....................................................................P.274
Checking/rotation/tire pressure warning system ..............................P.330
Coping with flat tires.................................................................P.379, 389
Hood ................................................................................................P.317
Opening ...........................................................................................P.317
Engine oil .........................................................................................P.413
Coping with overheating ..................................................................P.405
Headlights/front position lights/daytime running lights/turn signal
lights .......................................................................................P.171, 173
Front fog lights
*2............................................................................P.180
Tail lights/turn signal lights ..................................................P.171, 173
Stop lights
Side turn signal lights ...................................................................P.171
License plate light..........................................................................P.173
Rear fog light ..................................................................................P.180
Back-up light
Shifting the shift position to R ..................................................P.164, 168
*1: Vehicles with a smart entry & start system
*2: If equipped
Light bulbs of the exterior lights for driving
(Replacing method: P.351, Watts: P.419)

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YARIS(HB) Owner's Manual_Europe_MK0001_en
2-1. Instrument cluster
Vehicle status information and indicators
Engine coolant temperature gauge
Displays the engine coolant temperature
Display change button (→P. 8 7 )
■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 25 km/h [16 mph])
• When the outside temperature has changed suddenly (at the entrance/exit of a garage, tunnel, etc.)
●When “--” is displayed, the system may be malfunctioning. Take your
vehicle to any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■Liquid crystal display
→ P. 9 4
■Customization
The gauges and meters can be custom-
ized in of the multi-information dis-
play. ( →P.422)
■Changing the display
Press the display change button
until the desired item is displayed.
■Display items
z Odometer
Displays the total distance the vehicle
has been driven.
z Trip meter A/Trip meter B
Displays the distance the vehicle has
WARNING
■The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crys-tal information display. At extremely
low temperatures, the information dis- play monitor may respond slowly, and display changes may be delayed.
For example, there is a lag between the driver’s shifting and the new gear
number appearing on the display. This lag could cause the driver to downshift again, causing rapid and
excessive engine braking and possi- bly an accident resulting in death or injury.
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 com-pletely. ( →P.405)
Odometer and trip meter
display

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YARIS(HB) Owner's Manual_Europe_MK0001_en
2-1. Instrument cluster
Vehicle status information and indicators
Shift position indicator (Multidrive) (→P.164)
Gear Shift Indicator (manual transmission) (→P.170)
■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 25 km/h [16 mph]) • When the outside temperature has changed suddenly (at the
entrance/exit of a garage, tunnel, etc.)
●When “--” is displayed, the system
may be malfunctioning. Take your vehicle to any authorized Toyota retailer or Toyota authorized repairer,
or any reliable repairer.
■Liquid crystal display
→ P. 1 0 0
■Customization
The gauges and meters can be custom-
ized in of the multi-information dis-
play. ( →P.422)
■Changing the display
Press the display change button
until the desired item is displayed.
■Display items
z Odometer
Displays the total distance the vehicle
has been driven.
z Trip meter A/Trip meter B
Displays the distance the vehicle has
been driven since the meter was last
reset. Trip meters A and B can be used
WARNING
■The information display at low
temperatures
Allow the interior of the vehicle to warm up before using the liquid crys-
tal information display. At extremely low temperatures, the information dis-play monitor may respond slowly, and
display changes may be delayed.
For example, there is a lag between
the driver’s shifting and the new gear number appearing on the display. This lag could cause the driver to
downshift again, causing rapid and excessive engine braking and possi-bly an accident resulting in death or
injury.
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 com-
pletely. ( →P.405)
Odometer and trip meter
display

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-1. Before driving
Driving
WARNING
●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.164, 168)
●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.
■When driving on slippery road surfaces
●Sudden braking, acceleration and steering may cause tire slippage and reduce your ability to control
the vehicle.
●Sudden acceleration, engine brak-
ing due to shifting, or changes in engine speed could cause the vehi-cle to skid.
●After driving through a puddle, lightly depress the brake pedal to
make sure that the brakes are func- tioning properly. Wet brake pads may prevent the brakes from func-
tioning properly. If the brakes on only one side are wet and not func-tioning properly, steering control
may be affected.
■When shifting the shift lever
●Vehicles with a Multidrive: Do not let the vehicle roll backward while a forward driving position is selected,
or roll forward while the shift lever is in R.Doing so may cause the engine to
stall or lead to poor brake and steering performance, resulting in an accident or damage to the vehi-
cle.
●Vehicles with a Multidrive: Do not shift the shift lever to P while the vehicle is moving.
Doing so can damage the transmis- sion and may result in a loss of vehicle control.
●Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmis- sion and may result in a loss of vehicle control.
●Do not shift the shift lever to a driv-ing position while the vehicle is
moving backward. Doing so can damage the transmis-sion and may result in a loss of
vehicle control.
●Moving the shift lever to N while the
vehicle is moving will disengage the engine from the transmission. Engine braking is not available
when N is selected.
●Vehicles with a Multidrive: Be care-
ful not to shift the shift lever with the accelerator pedal depressed. Shift-ing the shift lever to any positions
other than P or N may lead to unex- pected rapid acceleration of the vehicle that may cause an accident
and result in death or serious injury.
■If you hear a squealing or scrap-
ing noise (brake pad wear indica- tors)
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
when the wear limits of the brake pads and/or those of the brake discs are exceeded.

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-1. Before driving
WARNING
■When the vehicle is stopped
●Do not race the engine.
If the vehicle is in any gear other than P (Multidrive) or N, the vehicle may accelerate suddenly and unex-
pectedly, causing an accident.
●Vehicles with a Multidrive: In order
to prevent accidents due to the vehicle rolling away, always keep depressing the brake pedal while
the engine is running, and apply the parking brake as necessary.
●If the vehicle is stopped on an incline, in order to prevent acci-dents 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 over-
heat, 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 follow-
ing:
• 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 fracture, caus-
ing 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.
●Do not attach adhesive discs to the windshield or windows. Do not
place containers such as air fresh- eners on the instrument panel or dashboard. Adhesive discs or con-
tainers may act as lenses, causing a fire in the vehicle.
●Do not leave a door or window open if the curved glass is coated with a metallized film such as a sil-
ver-colored one. Reflected sunlight may cause the glass to act as a lens, causing a fire.
●Always apply the parking brake, shift the shift lever to P (vehicles
with a Multidrive), stop the engine and lock the vehicle.Do not leave the vehicle unat-
tended while the engine is running. If the vehicle is parked with the shift lever in P but the parking brake is
not set, the vehicle may start to move, possibly leading to an acci-dent.
●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.

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-1. Before driving
Driving
■Transmission information
Multidrive
To maintain engine braking effi-
ciency and charging system perfor-
mance when using engine braking,
do not use the transmission in D,
must be in M and select gear step 4
or lower. ( →P.164)
Manual transmission
Refrain from driving in 6th gear to
maintain the effectiveness of
engine braking and to maintain
charging system performance.
■If the engine overheats
Towing a loaded trailer up a long,
steep incline in temperatures
exceeding 30°C (85°F) may result
in the engine overheating. If the
engine coolant temperature gauge
indicates that the engine is over-
heating, turn the air conditioning off
immediately, leave the road and
stop the vehicle in a safe place.
( →P.405)
■When parking the vehicle
Always place wheel chocks under
the wheels of both the vehicle and
trailer. Firmly set the parking brake
and shift the shift lever to P (Multid-
rive) and 1 or R (manual transmis-
sion).
WARNING
Follow all the instructions described in
this section. Failure to do so could cause an accident resulting in death or serious injury.
■Trailer towing precautions
When towing, make sure that none of the weight limits are exceeded.
( →P.153)
■Vehicle speed in towing
Observe the legal maximum speeds for trailer towing.
■Before descending hills or long declines
Reduce speed and downshift. How-
ever, never downshift suddenly while descending steep or long downhill grades.
■Operation of the brake pedal
Do not hold the brake pedal
depressed often or for long periods of time. Doing so may result in the brake overheating or reduce braking effects.
■To avoid accident or injury
●Vehicles with a compact spare tire:
Do not tow a trailer when the com- pact spare tire is installed on your vehicle.
●Vehicles with the emergency tire puncture repair kit: Do not tow a
trailer when the tire installed is repaired with the emergency tire puncture repair kit.
●Vehicles with a Dynamic radar cruise control: Do not use dynamic
radar cruise control when you are towing.
NOTICE
■Do not directly splice trailer
lights
Directly splicing trailer lights may damage your vehicle’s electrical sys-
tem and cause a malfunction.

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-2. Driving procedures
4-2.Driving pro cedu res
1Check that the parking brake is
set.
2 Check that the shift lever is in P
(Multidrive) or N (manual trans-
mission).
3 Firmly depress the brake pedal
(Multidrive) or clutch pedal
(manual transmission).
4 Turn the engine switch to
START to start the engine.
■If the engine does not start
The engine immobilizer system may not
have been deactivated. ( →P.76) Contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
■When the steering lock cannot be released
When starting the engine, the engine switch may seem stuck in OFF. To free it, turn the key while turning the steering
wheel slightly left and right.
1 OFF (“LOCK” position)
The steering wheel is locked and the
key can be removed. (vehicles with a
Multidrive: The key can be removed
only when the shift lever is in P.)
2 ACC (“ACC” position)
Engine (ignition) switch
(vehicles without a
smart entry & start sys-
tem)
Starting the engine
WARNING
■When starting the engine
Always start the engine while sitting in
the driver’s seat. Do not depress the accelerator pedal while starting the engine under any circum-
stances.Doing so may cause an acci- dent resulting in death or serious injury.
NOTICE
■When starting the engine
●Do not crank the engine for more
than 30 seconds at a time. This may overheat the starter and wiring system.
●Do not race a cold engine.
●If the engine becomes difficult to start or stalls frequently, have your vehicle checked by any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer immediately.
Changing the engine switch
positions

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-2. Driving procedures
engine switch mode.
■Engine switch illumination
In the following situations, the engine
switch is illuminated.
●When the driver’s or passenger’s door
is opened.
●When the engine switch is in ACC or
ON.
●When the engine switch mode is
changed from ACC or ON to off.
Also, in the following situation, the
engine switch flashes.
●When depressing the brake pedal
while carrying the electronic key.
■If the engine does not start
●The engine immobilizer system may
not have been deactivated. (→P.76)
Contact any authorized Toyota retailer
or Toyota authorized repairer, or any
reliable repairer.
●If a message related to start-up is
shown on the multi-information dis-
play, read the message and follow the
instructions.
■If the battery is discharged
The engine cannot be started using the
smart entry & start system. Refer to
P.401 to restart the engine.
■Electronic key battery depletion
→P. 1 1 2
■Conditions affecting operation
→P. 1 2 4
■Notes for the entry function
→P. 1 2 5
■Steering lock function
●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, “Push Engine Switch while
Turning Steering Wheel in Either
Direction” will be displayed on the
multi-information display.
Press the engine switch shortly and
firmly while turning the steering wheel
left and right.
●To prevent the steering lock motor
from overheating, operation of the
motor may be suspended if the engine
is turned on and off repeatedly in a
short period of time. In this case,
refrain from operating the engine
switch. After about 10 seconds, the
steering lock motor will resume func-
tioning.
■Electronic key battery
→P. 3 4 5
■Operation of the engine switch
●If the switch is not pressed shortly and
firmly, the engine switch mode may
not change or the engine may not
start.
●If attempting to restart the engine
immediately after turning the engine
switch off, the engine may not start in
some cases. After turning the engine
switch off, please wait a few seconds
before restarting the engine.

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4-5. Using the driving support systems
Driving
tions may be generated from the brake
system, but this is not a malfunction.
■EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunc- tion.
■Automatic reactivation of TRC, Trailer Sway Control and VSC sys-
tems
After turning the TRC, Trailer Sway Con- trol 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.
■Operating conditions of Active Cor-
nering Assist
The system operates when the following occurs.
●TRC/VSC can operate
●The driver is attempting to accelerate while turning
●The system detects that the vehicle is drifting to the outer side
●The brake pedal is released
■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 nor-mal within 10 minutes.
■Operating conditions of emergency
brake signal
When the following conditions are met, the emergency brake signal will oper-
ates:
●The emergency flashers are off
●Actual vehicle speed is over 55 km/h (35 mph)
●The system judges from the vehicle deceleration that it is a sudden brak-
ing operation.
■Automatic system cancelation of emergency brake signal
The emergency brake signal will be can-
celed in any of the following situations:
●The emergency flashers are turned
on.
●The system judges from the vehicle
deceleration that is not a sudden brak- ing operation.
■Secondary Collision Brake operat-ing conditions
The system operates when the SRS air- bag sensor detects a collision while the vehicle is in motion.
However, the system does not operate when components are damaged.
■Secondary Collision Brake auto-matic cancelation
The system is automatically canceled in any of the following situations.
●The vehicle speed drops approxi-mately 0 km/h (0 mph)
●A certain amount of time elapses during operation
●The accelerator pedal is depressed a large amount
WARNING
■The ABS does not operate effec-
tively when
●The limits of tire gripping perfor- mance have been exceeded (such
as excessively worn tires on a snow covered road).