2021 TOYOTA YARIS engine

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-5. Using the driving support systems
Driving
teristics and by controlling the operation
of the air conditioning system (heat-
ing/cooling).
When the Eco drive mode is selected,
Eco drive mode indicator comes on.
■Operation of the air conditioning
system in Eco drive mode
Eco drive mode controls the heat-
ing/cooling operations and fan speed of
the air conditioning system to enhance
fuel efficiency. To improve air condition-
ing performance, perform the following
operations:
●Turn off air conditioning eco mode
(vehicles with an automatic air condi-
tioning system) (→P.285)
●Adjust the fan speed (→P.279, 284)
●Turn off Eco drive mode
■Automatic deactivation of power
mode
If the engine switch is turned off after
driving in power mode, the drive mode
will be changed to normal mode.
*: If equipped
■If “Exhaust Filter Full See Owner’s
Manual” is shown on the multi-
information display
●The message may be displayed while
high load driving with particulate mat-
ter accumulating.
●Engine output is restricted while the
message is displayed, however, it is
possible to drive the vehicle unless
the malfunction indicator lamp comes
on.
●Particulate matter can accumulate
more quickly if the vehicle is fre-
quently driven short trips or at low
speeds, or if the engine is regularly
started in an extremely cold environ-
ment. Excessive accumulation of par-
ticulate matter can be prevented by
periodically driving long distances
continuously with intermittent releas-
ing of the accelerator pedal, such as
when driving on highways and free-
ways.
■If the malfunction indicator lamp
comes on or “Engine Maintenance
Required Visit Your Dealer” is
shown on the multi-information
display
The amount of accumulated particulate
matter has exceeded a certain level.
Have the vehicle inspected by any
authorized Toyota retailer or Toyota
GPF (Gasoline Particu-
late Filter) system
*
The GPF system collects par-
ticulate matter in the exhaust
gas by using an exhaust gas
filter.
The system will operate to
regenerate the filter automati-
cally, depending on the vehicle
conditions.

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-5. Using the driving support systems
Driving
■Trailer Sway Control
Helps the driver to control trailer
sway by selectively applying brake
pressure for individual wheels and
reducing driving torque when trailer
sway is detected.
■TRC (Traction Control)
Helps to maintain drive power and
prevent the drive wheels from spin-
ning when starting the vehicle or
accelerating on slippery roads
■Active Cornering Assist (ACA)
Helps to prevent the vehicle from
drifting to the outer side by perform-
ing inner wheel brake control when
attempting to accelerate while turn-
ing
■Hill-start assist control
Helps to reduce the backward
movement of the vehicle when
starting on an uphill
■EPS (Electric Power Steering)
Employs an electric motor to
reduce the amount of effort needed
to turn the steering wheel.
■Emergency brake signal
When the brakes are applied sud-
denly, the emergency flashers auto-
matically flash to alert the vehicle
behind.
■Secondary Collision Brake
When the SRS airbag sensor
detects a collision and the system
operates, the brakes and brake
lights are automatically controlled
to reduce the vehicle speed and help reduce the possibility of further
damage due to a secondary colli-
sion.
■When the TRC/VSC/Trailer Sway
Control systems are operating
The slip indicator light will flash while the
TRC/VSC/Trailer Sway Control systems
are operating.
■Disabling the TRC system
If the vehicle gets stuck in mud, dirt or
snow, the TRC system may reduce
power from the engine to the wheels.
Pressing to turn the system off may
make it easier for you to rock the vehicle
in order to free it.
To turn the TRC system off, quickly
press and release .
The “Traction Control Turned OFF” will
be shown on the multi-information dis-
play.
Press again to turn the system
back on.
“Traction Control Turned OFF”

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-5. Using the driving support systems
■Turning off both TRC, VSC and
Trailer Sway Control systems
To turn the TRC, VSC and Trailer Sway
Control systems off, press and hold
for more than 3 seconds while the vehi-
cle is stopped.
The VSC OFF indicator light will come
on and the “Traction Control Turned
OFF” will be shown on the multi-infor-
mation display.
*
Press again to turn the system
back on.
*: On vehicles with PCS (Pre-Collision
System), PCS will also be disabled
(only Pre-Collision warning is avail-
able). The PCS warning light will
come on and a message will be dis-
played on the multi-information dis-
play. (→P.203)
■When the message is displayed on
the multi-information display show-
ing that TRC has been disabled
even if has not been pressed
TRC is temporary deactivated. If the
information continues to show, contact
any authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
■Operating conditions of hill-start
assist control
When the following conditions are met,
the hill-start assist control will operate:
●Vehicles with a Multidrive: The shift
lever is in a position other than P or N
(when starting off forward/backward
on an upward incline).
●Vehicles with a manual transmission:
The shift lever is in a position other
than R when starting off forward on an
upward incline, or the shift lever is in
R when starting off backward on an
upward incline.
●The vehicle is stopped
●The accelerator pedal is not
depressed
●The parking brake is not engaged
■Automatic system cancelation of
hill-start assist control
The hill-start assist control will turn off in
any of the following situations:
●Vehicles with a Multidrive: The shift
lever is shifted to P or N.
●Vehicles with a manual transmission:
The shift lever is shifted to R when
starting off forward on an upward
incline, or the shift lever is shifted to
other than R when starting off back-
ward on an upward incline.
●The accelerator pedal is depressed
●The parking brake is engaged
●2 seconds at maximum elapsed after
the brake pedal is released
■Sounds and vibrations caused by
the ABS, brake assist, VSC, Trailer
Sway Control, 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.
■Active Cornering Assist operation
sounds and vibrations
When the Active Cornering Assist is
operated, operation sounds and vibra-

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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).

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4-6. Driving tips
4-6.Driving tips
zUse fluids that are appropriate to
the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
z Have a service technician
inspect the condition of the bat-
tery.
z Have the vehicle fitted with four
snow tires or purchase a set of
tire chains for the front tires.
Ensure that all tires are the same size
and brand, and that chains match the
size of the tires.
Winter driving tips
Carry out the necessary prepa-
rations and inspections before
driving the vehicle in winter.
Always drive the vehicle in a
manner appropriate to the pre-
vailing weather conditions.
Pre-winter preparations
WARNING
■Driving with snow tires
Observe the following precautions to
reduce the risk of accidents. Failure to do so may result in a loss of vehicle control and cause death or
serious injury.
●Use tires of the size specified.
●Maintain the recommended level of air pressure.
●Do not drive at speeds in excess of the speed limit or the speed limit specified for the snow tires being
used.
●Use snow tires on all, not just some
wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.Failure to do so may result in the vehi-
cle being unable to be driven safely, and may cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains
being used, or 50 km/h (30 mph), whichever is lower.
●Avoid driving on bumpy road sur-faces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shift-ing operations that cause sudden
engine braking.
●Slow down sufficiently before enter-
ing a curve to ensure that vehicle control is maintained.
●Do not use LTA (Lane Tracing Assist) system. (if equipped)
●Do not use LDA (Lane Departure Alert with steering control) system. (if equipped)
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow tires from any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer or legitimate tire retailers.
This is because the removal and attachment of snow tires affects the operation of the tire pressure warning
valves and transmitters.

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5-1. Using the air conditioning system and defogger
Interior features
Press the rear window and outside
rear view mirror defoggers switch.
The defoggers will automatically turn off
after a while.
When the rear window and outside rear
view mirror defoggers switch is on, the
indicator illuminates on the rear window
and outside rear view mirror defoggers
switch.
■Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high.
Turning “A/C” switch is on will dehu- midify the air from the outlets and defog the windshield effectively.
●If you turn “A/C” switch is off, the win-dows may fog up more easily.
●The windows may fog up if the recir-culated air mode is used.
■When driving on dusty roads
Close all windows. If dust thrown up by the vehicle is still drawn into the vehicle after closing the windows, it is recom-
mended that the air intake mode be set to outside air mode and the fan speed to any setting except off.
■Outside/recirculated air mode
●Setting to the recirculated air mode
temporarily is recommended in pre- venting dirty air from entering the vehicle interior and helping to cool the
vehicle when the outside air tempera- ture is high.
●During cooling operation, setting the recirculated air mode will also cool the vehicle interior effectively.
■When the outside temperature falls
to nearly 0°C (32°F)
The dehumidification function may not operate even when “A/C” switch is
pressed.
■Ventilation and air conditioning
odors
●To let fresh air in, set the air condition-
ing system to the outside air mode.
●During use, various odors from inside
and outside the vehicle may enter into and accumulate in the air conditioning system. This may then cause odor to
be emitted from the vents.
●It is recommended that the air condi-
tioning system be set to outside air mode prior to turning the vehicle off.
■Air conditioning filter
→ P. 3 4 3
■Location of air outlets
The air outlets and air volume
WARNING
■To prevent the windshield from fogging up
Do not use the windshield defogger
switch during cool air operation in extremely humid weather. The differ-ence between the temperature of the
outside air and that of the windshield can cause the outer surface of the windshield to fog up, blocking your
vision.
■When the outside rear view mir-
ror defoggers are operating (if equipped)
Do not touch the outside rear view
mirror surfaces, as they can become very hot and burn you.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning sys-
tem on longer than necessary when the engine is off.
Air outlet layout and opera-
tions

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5-1. Using the air conditioning system and defogger
is pressed, the fan speed setting
mode toggles as follows.
Normal → “ECO” → “FAST” → Nor-
mal
When “ECO” is displayed on the air
conditioning screen, the air condi-
tioning is controlled with low fuel
consumption prioritized such as
reducing fan speed, etc.
When “FAST” is displayed on the
screen, fan speed will be
increased.
■Fogging up of the windows
●The windows will easily fog up when
the humidity in the vehicle is high.
Turning “A/C” on will dehumidify the
air from the outlets and defog the
windshield effectively.
●If you turn “A/C” off, the windows may
fog up more easily.
●The windows may fog up if the recir-
culated air mode is used.
■When driving on dusty roads
Close all windows. If dust thrown up by
the vehicle is still drawn into the vehicle
after closing the windows, it is recom-
mended that the air intake mode be set
to outside air mode and the fan speed to
any setting except off.
■Outside/recirculated air mode
●Setting to the recirculated air mode
temporarily is recommended in pre-
venting dirty air from entering the
vehicle interior and helping to cool the
vehicle when the outside air tempera-
ture is high.
●Outside/recirculated air mode may
automatically switch depending on the
temperature setting or the inside tem-
perature.
■Operation of the air conditioning
system in Eco drive mode
●In Eco drive mode, the air conditioning
system is controlled as follows to pri-
oritize fuel efficiency:
• Engine speed and compressor opera-
tion controlled to restrict heating/cool-
ing capacity
• Fan speed restricted when automatic
mode is selected
●To improve air conditioning perfor-
mance, perform the following opera-
tions:
• Adjust the fan speed
• Turn off Eco drive mode (→P.266)
●Even when the drive mode is set to
Eco drive mode, the air conditioning
eco mode can be turned off by press-
ing the “FAST/ECO” switch. (→P.285)
■When the outside temperature falls
to nearly 0°C (32°F)
The dehumidification function may not
operate even when “A/C” switch is
pressed.
■Ventilation and air conditioning
odors
●To let fresh air in, set the air condition-
ing system to the outside air mode.
●During use, various odors from inside
and outside the vehicle may enter into
and accumulate in the air conditioning
system. This may then cause odor to
be emitted from the vents.
●To reduce potential odors from occur-
ring:
• It is recommended that the air condi-
tioning system be set to outside air
mode prior to turning the vehicle off.
• The start timing of the blower may be
delayed for a short period of time
immediately after the air conditioning
system is started in automatic mode.
●When parking, the system automati-
cally switches to outside air mode to
encourage better air circulation
throughout the vehicle, helping to
reduce odors that occur when starting
the vehicle.

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5-1. Using the air conditioning system and defogger
Interior features
■Air conditioning filter
→ P. 3 4 3
■Customization
Some functions can be customized. ( →P.422)
1Press the automatic mode
switch.
2 Adjust the temperature setting.
3 To stop the operation, press the
off switch.
If the fan speed setting or air flow
modes are operated, the automatic
mode indicator goes off. However,
automatic mode for functions other
than that operated is maintained.
■Using automatic mode
Fan speed is adjusted automatically
according to the temperature setting and the ambient conditions.
Therefore, the fan may stop for a while
until warm or cool air is ready to flow immediately after the automatic mode switch pressed.
To turn on the “DUAL” mode, per-
form any of the following proce-
dures:
z Press the “DUAL” switch.
z Adjust the front passenger’s side
temperature setting.
The indicator on the “DUAL” switch
comes on when the “DUAL” mode is
on.
Pressing the “DUAL” switch when in
“DUAL” mode will disable “DUAL”
mode, and the temperature setting for
the front passenger’s side will become
linked to the driver’s side.
■Location of air outlets
The air outlets and air volume
changes according to the selected
air flow mode.
WARNING
■To prevent the windshield from fogging up
Do not use the windshield defogger
switch during cool air operation in extremely humid weather. The differ-ence between the temperature of the
outside air and that of the windshield can cause the outer surface of the windshield to fog up, blocking your
vision.
■When the outside rear view mir-
ror defoggers are operating (if equipped)
Do not touch the outside rear view
mirror surfaces, as they can become very hot and burn you.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning sys-
tem on longer than necessary when the engine is off.
Using automatic mode
Adjusting the temperature
for the driver and front pas-
senger seat separately (if
equipped)
Air outlet layout and opera-
tions