2022 TOYOTA GR YARIS steering wheel

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4-5. Using the driving support systems
●If the operation conditions (P.176)
are no longer met while the lane cen- tering function is operating, the buzzer may sound to indicate that the func-
tion has been temporarily canceled.
■Steering assist function/lane cen- tering function
●Depending on the vehicle speed, lane departure situation, road conditions, etc., the driver may not feel the func-
tion is operating or the function may not operate at all.
●The steering control of the function is overridden by the driver’s steering wheel operation.
●Do not attempt to test the operation of the steering assist function.
■Lane departure alert function
●The warning buzzer may be difficult to hear due to external noise, audio play-
back, etc.
●If the edge of the course* is not clear
or straight, the lane departure alert function may not operate.
●Vehicle with BSM: It may not be possi-ble for the system to determine if there
is a danger of a collision with a vehicle in an adjacent lane.
●Do not attempt to test the operation of the lane departure alert function.*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
■Hands off steering wheel warning
In the following situations, a warning
message urging the driver to hold the steering wheel and the symbol shown in the illustration are displayed on the
multi-information display to warn the driver. The warning stops when the sys-tem determines that the driver holds the
steering wheel. Always keep your hands on the steering wheel when using this system, regardless of warnings.
●When the system determines that the
driver is driving without holding the steering wheel while the system is operating
If the driver continues to keep their
hands off of the steering wheel, the
buzzer sounds, the driver is warned and
the function is temporarily canceled.
This warning also operates in the same
way when the driver continuously oper-
ates the steering wheel only a small
amount.
●When the system determines that the vehicle may deviate from the lane
while driving around a curve while the lane centering function is operating.
Depending on the vehicle condition and
road conditions, the warning may not
operate. Also, if the system determines
that the vehicle is driving around a
curve, warnings will occur earlier than
during straight-lane driving.
●When the system determines that the driver is driving without holding the steering wheel while the steering
wheel assist of the steering assist function is operating.
If the driver continues to keep their
hands off of the steering wheel and the
steering wheel assist is operating, the
buzzer sounds and the driver is warned.
Each time the buzzer sounds, the con-
tinuing time of the buzzer becomes lon-
ger.
■Vehicle sway warning function
When the system determines that the
vehicle is swaying while the vehicle

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4-5. Using the driving support systems
This mode employs a radar to detect the presence of vehicles up to approx-
imately 100 m (328 ft.) ahead, d etermines the current vehicle-to-vehicle fol-
lowing distance, and operates to maintain a suitable following distance from
the vehicle ahead. The desired vehicle-to-vehicle distance can also be set
by operating the vehicle-to-vehicle distance switch.
When driving on downhill slopes, the vehicle-to-vehicle distanc e may become
shorter.
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver.
Example of deceleration cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed appe ars
When a vehicle is detected running ahead of you, the system automatically deceler-
ates your vehicle. When a greater reduction in vehicle speed is necessary, the sys-
tem applies the brakes (the stop lights will come on at this ti me). The system will
respond to changes in the speed of the vehicle ahead in order t o maintain the vehi-
cle-to-vehicle distance set by the driver. Approach warning war ns you when the sys-
tem cannot decelerate sufficiently to prevent your vehicle from closing in on the
vehicle ahead.
When the turn signal lever is operated and your vehicle moves t o an overtaking lane
while driving at 80 km/h (50 mph) or more, the vehicle will acc elerate to help to over-
take a passing vehicle.
The system’s identification of what is an overtaking lane may b e determined solely
based on the location of the steering wheel in the vehicle (lef t side driver position
Driving in vehicle-to-vehicle distance control mode

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4-5. Using the driving support systems
Driving
●Preceding vehicle has an extremely
high ground clearance
■Conditions under which the vehi-
cle-to-vehicle distance control mode may not function correctly
In the case of the following conditions,
operate the brake pedal (or accelerator pedal, depending on the situation) as necessary.
As the sensor may not be able to cor- rectly detect vehicles ahead, the system may not operate properly.
●When the road curves or when the lanes are narrow
●When steering wheel operation or your position in the lane is unstable
●When the vehicle ahead of you decel-
erates suddenly
●When driving on a road surrounded by
a structure, such as in a tunnel or on a bridge
●While the vehicle speed is decreasing to the set speed after the vehicle accelerates by depressing the accel-
erator pedal

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4-5. Using the driving support systems
Driving
●Installation and removal of electrical
components and wireless devices may affect the Stop & Start system. Contact any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer for details.
●When stopping the vehicle for a lon-ger period of time, turn the engine switch off to stop the engine com-
pletely.
●When the engine is restarted by the
Stop & Start system, the steering wheel may temporarily feel heavy.
■Operating conditions
●The Stop & Start system is operational when all of the following conditions are met:
• The vehicle has been driven a certain amount of time.• The clutch pedal is not depressed.
• The shift lever is in N. • The driver’s seat belt is fastened.• The driver’s door is closed.
• The selected driving modes are nor- mal mode and track mode.• The windshield defogger is off.
• The engine is adequately warmed up. • The outside temperature is -5°C (23°F) or higher.
• The hood and back door are closed. ( P.195)
●In the following situations the engine may not be stopped by the Stop & Start system. This is not a malfunction
of the Stop & Start system. • When the air conditioning system is being used.
• When the battery is undergoing a peri- odic recharge.• When the battery is not sufficiently
charged, such as if the vehicle has been parked for a long time and the battery charge has decreased, the
electric load is large, the battery fluid temperature is excessively low or the battery has deteriorated.
• When the brake booster vacuum is low.• When the elapsed time since the
engine was restarted is short. • When the vehicle is stopped fre-
quently, such as when in a traffic jam.
• When the engine coolant temperature or transmission fluid temperature is extremely low or high.
• When the steering wheel is being operated.• When the vehicle is being driven in a
high altitude area. • When the battery fluid temperature is extremely low or high.
• For a while after the battery terminals have been disconnected and recon-nected.
●When the engine is stopped by the S t o p & S t a r t s y s t e m , t h e e n g i n e w i l l b e
restarted automatically if any of the following conditions are met:
(To enable the engine to be stopped by
the Stop & Start system again, drive the
vehicle.)
• The air conditioning system is turned
on. • The windshield defogger is turned on.• The driver’s seat belt is unfastened.
• The driver’s door is opened. • The driving mode is changed from normal mode and track mode to
another mode. • The Stop & Start cancel switch is pressed.
• The steering wheel is operated. • The vehicle starts to roll on an incline.
●When the engine is stopped by the Stop & Start system, the engine may restart automatically in the following
situations: (To enable the engine to be stopped by the Stop & Start system again, drive the vehicle.)
• When the brake pedal is pumped or strongly depressed.• When the air conditioning system is
being used. • When a switch of the air conditioning system is operated (windshield defog-
ger switch, etc.). • If the battery charge becomes low.
■When the hood is opened
If the hood is opened while the engine is
stopped by the Stop & Start system, the engine will stall and will not be able to be

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4-5. Using the driving support systems
■The system can be operated when
●The engine switch is in ON.
●Toyota parking assist-sensor function is on.
●The vehicle speed is less than about 10 km/h (6 mph).
●Steering wheel is turned approxi-mately 90° or more (Front side sen-sors, rear side sensors) (if equipped)
●The parking brake is released.
■If “Clean Parking Assist Sensor” is
displayed on the multi-information display
A sensor may be covered with water
drops, ice, snow, dirt, etc. Remove the water drops, ice, snow, dirt, etc., from the sensor to return the system to nor-
mal.
Also, due to ice forming on a sensor at low temperatures, a warning message
may be displayed or the sensor may not be able to detect an object. Once the ice melts, the system will return to normal.
■Sensor detection information
The following situations may occur during use.
●The sensors may be able to only detect objects near the front and rear bumpers.
●Depending on the shape of the object and other factors, the detection dis-
tance may shorten, or detection may be impossible.
●If an object is extremely close to a sensor, it may not be detected.
●There will be a short delay between object detection and display. Even at low speeds, there is a possibility that
the object will come within the sen- sor’s detection areas before the dis-play is shown and the warning beep
sounds.
●It might be difficult to hear the buzzer
due to the volume of the audio system or air flow noise of the air conditioning system.
●It may be difficult to hear the buzzer if buzzers for other systems are sound-
ing.
■Objects which the system may not be properly detected
The shape of the object may prevent the
sensor from detecting it. Pay particular attention to the following objects:
●Wires, fences, ropes, etc.
●Cotton, snow and other materials that
absorb sound waves
WARNING
●Do not modify, disassemble or paint the sensors.
●Do not attach a license plate cover.
●Keep your tires properly inflated.
■When to disable the function
In the following situations, disable the function as it may operate even though there is no possibility of a colli-
sion.
●Failing to observe the warnings
above.
●A non-genuine Toyota suspension
(lowered suspension, etc.) is installed.
■Notes when washing the vehicle
Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.
●When using a high pressure washer to wash the vehicle, do not spray the sensors directly, as doing
so may cause a sensor to malfunc- tion.
●When using steam to clean the vehicle, do not direct steam too close to the sensors as doing so
may cause a sensor to malfunction.

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4-5. Using the driving support systems
Driving
authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer immediately.
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when
the brakes are applied suddenly, or
if the brakes are applied while driv-
ing on a slippery road surface
■Brake assist
Generates an increased level of
braking force after the brake pedal
is depressed when the system
detects a panic stop situation
■VSC (Vehicle Stability Control)
Helps the driver to control skidding
when swerving suddenly or turning
on slippery road surfaces.
■VSC+ (Vehicle Stability Con-
trol+)
Provides cooperative control of the
ABS, TRC, VSC and EPS.
Helps to maintain directional stabil-
ity when swerving on slippery road
surfaces by controlling steering per-
formance.
NOTICE
■To prevent the GPF system from
not operating properly
●Do not use fuel other than the spec- ified type
●Do not modify the exhaust pipes
Driving assist systems
To keep driving safety and per-
formance, the following sys-
tems operate automatically in
response to various driving sit-
uations. Be aware, however,
that these systems are supple-
mentary and should not be
relied upon too heavily when
operating the vehicle.
Summary of the driving
assist systems

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4-5. Using the driving support systems
■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
■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.
■Active Torque Split AWD sys-
tem
Automatically switches from front-
wheel drive to all-wheel drive
(AWD) according to the driving con-
ditions, helping to ensure reliable
handling and stability. Examples of
conditions where the system will
switch to AWD are when cornering,
going uphill, starting off or acceler-
ating, and when the road surface is
slippery due to snow, rain, etc.
■Emergency brake signal
When the brakes are applied sud-
denly, the emergency flashers auto-
matically flash to alert the vehicle
behind.
■The secondary Collision Brake
(if equipped)
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 systems are operating
The slip indicator light will flash while the
TRC/VSC 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 “TRC OFF” indicator light will come
on.
Press again to turn the system
back on.
■Turning off both TRC and VSC sys-
tems
To turn the TRC and VSC systems off,

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4-5. Using the driving support systems
able repairer.
■Operating conditions of hill-start
assist control
When the following four conditions are met, the hill-start assist control will oper-
ate:
●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
●Engine switch is turned to ON
■Automatic system cancelation of hill-start assist control
The hill-start assist control will turn off in
any of the following situations:
●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
●Engine switch is turned to OFF
■Sounds and vibrations caused by the ABS, brake assist, VSC, TRC and hill-start assist control sys-
tems
●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 malfunc-
tion.
■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 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-