brake TOYOTA GR YARIS 2022 Owner's Guide

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4-5. Using the driving support systems
Driving
speed of 80 km/h (50 mph). Vehi-
cle-to-vehicle distance
increases/decreases in accor-
dance with vehicle speed.
1 Pressing the cancel switch can-
cels the speed control.
The speed control is also canceled
when the brake pedal is depressed.
2 Pressing the “+RES” switch
resumes the cruise control and
returns vehicle speed to the set
speed.
However, cruise control does not
resume when the vehicle speed is
approximately 25 km/h (16 mph) or
less.
When your vehicle is too close to a
vehicle ahead, and sufficient auto-
matic deceleration via the cruise
control is not possible, the display
will flash and the buzzer will sound
to alert the driver. An example of
this would be if another driver cuts
in front of you while you are follow-
ing a vehicle. Depress the brake
pedal to ensure an appropriate
vehicle-to-vehicle distance.
■Warnings may not occur when
In the following instances, warnings
may not occur even when the vehi-
cle-to-vehicle distance is small.
 When the speed of the preceding
vehicle matches or exceeds your
vehicle speed
 When the preceding vehicle is
traveling at an extremely slow
speed
 Immediately after the cruise con-
trol speed was set
 When depressing the accelerator
pedal
Distance
options
Vehicle-to-vehicle dis-
tance
LongApproximately 50 m (160
ft.)
MediumApproximately 40 m (130
ft.)
ShortApproximately 30 m (100
ft.)
Canceling and resuming the
speed control
Approach warning (vehicle-
to-vehicle distance control
mode)

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Driving
higher than the recognized
speed limit
Press and hold the “-SET” switch.
Dynamic Radar Cruise Control with
Road Sign Assist can be
enabled/disabled in on the
multi-information display. ( P.359)
When the Dynamic Radar Cruise
Control with Road Sign Assist is
operating, while driving down a hill,
the vehicle speed may exceed the
set speed.
In this case, the displayed set vehi-
cle speed will be highlighted and a
buzzer will sound to alert the driver.
■Dynamic radar cruise control can be set when
●The shift lever is in range 2nd or higher.
●Depending on the control mode, this item can be set at the following
speeds. • Vehicle-to-vehicle distance control mode: Approximately 30 km/h (20
mph) or more
• Constant speed control mode:
Approximately 30 km/h (20 mph) or more
■Accelerating after setting the vehi-cle speed
The vehicle can accelerate by operating the accelerator pedal. After accelerat-ing, the set speed resumes. However,
during vehicle-to-vehicle distance con- trol mode, the vehicle speed may decrease below the set speed in order
to maintain the distance to the preceding vehicle.
■Shift position selection
Select a shift position according to the
vehicle speed. If the engine speed is too high or too low, control may be automat-ically canceled.
■Automatic cancelation of vehicle-
to-vehicle distance control mode
Vehicle-to-vehicle distance control mode is automatically canceled in the follow-
ing situations.
●Actual vehicle speed falls below
approximately 25 km/h (16 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is turned off.
●The sensor cannot detect correctly because it is covered in some way.
●Pre-collision braking is activated.
●When the shift lever is in N or the
clutch pedal is depressed for a certain amount of time or more.
●The parking brake is operated.
If vehicle-to-vehicle distance control mode is automatically canceled for any
reasons other than the above, there may be a malfunction in the system. Contact any authorized Toyota retailer
or Toyota authorized repairer, or any reli- able repairer.
■Automatic cancelation of constant speed control mode
Constant speed control mode is auto-
Enabling/Disabling the
Dynamic Radar Cruise Con-
trol with Road Sign Assist

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4-5. Using the driving support systems
matically canceled in the following situa-
tions:
●Actual vehicle speed is more than
approximately 16 km/h (10 mph) below the set vehicle speed.
●Actual vehicle speed falls below approximately 30 km/h (20 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is turned off.
●Pre-collision braking is activated.
●When the shift lever is in N or the clutch pedal is depressed for a certain amount of time or more.
●The parking brake is operated.
If constant speed control mode is auto-
matically canceled for any reasons other than the above, there may be a malfunc-tion in the system. Contact any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■The Dynamic Radar Cruise Control
with Road Sign Assist may not operate properly when
As the Dynamic Radar Cruise Control
with Road Sign Assist may not operate properly in conditions in which RSA may not operate or detect correctly
( P.192), when using this function, make sure to check the speed limit sign displayed.
In the following situations, the set speed may not be changed to the recognized speed limit by pressing and holding the
“+RES”/“-SET” switch.
●If speed limit information is not avail-
able
●When the recognized speed limit is
the same as the set speed
●When the recognized speed limit is
outside of the speed range that the dynamic radar cruise control system can operate
■Brake operation
A brake operation sound may be heard and the brake pedal response may change, but these are not malfunctions.
■Warning messages and buzzers for
dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for cau- tion while driving. If a warning message is shown on the multi-information dis-
play, read the message and follow the instructions. ( P.156, 321)
■When the sensor may not be cor- rectly detecting the vehicle ahead
In the case of the following and depend- ing on the conditions, operate the brake pedal when deceleration of the system
is insufficient or operate the accelerator pedal when acceleration is required.
As the sensor may not be able to cor-
rectly detect these types of vehicles, the approach warning ( P.185) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the
same lane
●Vehicles with small rear ends (trailers
with no load on board, etc.)
●Motorcycles traveling in the same lane
●When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor
●When your vehicle is pointing
upwards (caused by a heavy load in the luggage compartment, etc.)

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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
■Stopping the engine
1 Fully depress the clutch pedal
and depress the brake pedal to
stop the vehicle.
2 Move the shift lever to N and
release the clutch pedal. The
engine will stop automatically.
When the engine is stopped by the Stop
& Start system, the Stop & Start indica- tor will illuminate.
■Restarting the engine
With the shift lever in N, depress
the clutch pedal. The engine will
start automatically.
When the engine starts, the Stop &
Start indicator will turn off.
Press the Stop & Start cancel
switch to disable the Stop & Start
system.
The Stop & Start cancel indicator
will illuminate.
Pressing the switch again will enable
the Stop & Start system and the Stop &
Start cancel indicator will turn off.
■Automatic enabling of the Stop & Start system
If the Stop & Start system is disabled
using the Stop & Start cancel switch, it will be automatically re-enabled once the engine switch is turned off and then
the engine is started.
■Points for use
●If the engine switch is pressed when
the engine is stopped by the Stop & Start system, the engine will not be
able to be restarted by the automatic engine start function. In this case, restart the engine using the normal
engine starting procedure. ( P.134)
●When the engine is being restarted by
the Stop & Start system, the power outlets may be temporarily unusable, but this does not indicate a malfunc-
tion.
Stop & Start system
The Stop & Start system stops
and starts the engine accord-
ing to clutch pedal or shift
lever operation when the vehi-
cle is stopped, such as at a
stoplight, inters ection, etc., in
order to improve fuel economy
and reduce noise pollution
caused by the engine idling.
Stop & Start system opera-
tion
Disabling the Stop & Start
system

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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
WARNING
■When the Stop & Start system is operating
Make sure to disable the Stop & Start system while the vehicle is in a poorly ventilated area.
If not disabled, the engine may be automatically restarted unexpectedly, causing exhaust gases to collect and
enter the vehicle, possibly resulting in death or a serious health hazard.
●Do not leave the vehicle while the
engine is stopped by the Stop & Start system (while the Stop & Start indicator is on). An accident may
occur due to the automatic engine start function.
●Depress the brake pedal and apply the parking brake when necessary while the engine is stopped by the
Stop & Start system (while the Stop & Start indicator is on).
NOTICE
■To ensure the system operates correctly
If any of the following situations occur, the Stop & Start system may not oper-ate correctly. Have your vehicle
inspected by any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
●While the driver’s seat belt is fas-tened, the driver’s and front pas-senger’s seat belt reminder light
flashes.
●Even though the driver’s seat belt is
not fastened, the driver’s and front passenger’s seat belt reminder light does not illuminate.
●Even though the driver’s door is closed, the open door warning light
is illuminated or the interior light is illuminated when the interior light switch is in the door position.
●Even though the driver’s door is open, the open door warning light does not illuminate or the interior
light does not illuminate when the interior light switch is in the door position.
■If the engine stalls
If the Stop & Start system is enabled
and the clutch pedal is depressed quickly, the engine may restart.

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■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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Driving
●Sharply-angled objects
●Low objects
●Tall objects with upper sections pro- jecting outwards in the direction of your vehicle
■Situations in which the system may
not operate properly
Certain vehicle conditions and the sur- rounding environment may affect the
ability of a sensor to correctly detect objects. Particular instances where this may occur are listed below.
●There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors
will resolve this problem.)
●A sensor is frozen. (Thawing the area
will resolve this problem.) In especially cold weather, if a sensor is frozen the sensor display may be
displayed abnormally, or objects, such as a wall, may not be detected.
●When a sensor or the area around a sensor is extremely hot or cold.
●On an extremely bumpy road, on an incline, on gravel, or on grass.
●When vehicle horns, vehicle detec-tors, motorcycle engines, air brakes of large vehicles, the clearance sonar of
other vehicles or other devices which produce ultrasonic waves are near the vehicle
●A sensor is coated with a sheet of spray or heavy rain.
●If objects draw too close to the sensor.
●Pedestrians that are hard to reflect ultrasonic waves (ex. skirts with gath-ers or frills).
●When objects that are not perpendicu-
lar to the ground, not perpendicular to
the vehicle traveling direction, uneven, or waving are in the detection range.
●Strong wind is blowing
●When driving in inclement weather such as fog, snow or a sandstorm
●When an object that cannot be detected is between the vehicle and a detected object
●If an object such as a vehicle, motor-cycle, bicycle or pedestrian cuts in
front of the vehicle or runs out from the side of the vehicle
●If the orientation of a sensor has been changed due to a collision or other impact
●When equipment that may obstruct a sensor is installed, such as a towing
eyelet, bumper protector (an addi- tional trim strip, etc.), bicycle carrier, or snow plow
●If the front of the vehicle is raised or lowered due to the carried load
●If the vehicle cannot be driven in a stable manner, such as when the
vehicle has been in an accident or is malfunctioning
●When a tire chains, compact spare tire or an emergency tire puncture repair kit is used
■Situations in which the system may
operate even if there is no possibil- ity of a collision
In some situations, such as the follow-
ing, the system may operate even though there is no possibility of a colli-sion.
●When driving on a narrow road

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4-5. Using the driving support systems
●When driving toward a banner, flag,
low-hanging branch or boom barrier (such as those used at railroad cross-ings, toll gates and parking lots)
●When there is a rut or hole in the sur-face of the road
●When driving on a metal cover (grat-ing), such as those used for drainage
ditches
●When driving up or down a steep
slope
●If a sensor is hit by a large amount of
water, such as when driving on a flooded road
●There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors will resolve this problem.)
●A sensor is coated with a sheet of spray or heavy rain
●When driving in inclement weather such as fog, snow or a sandstorm
●When strong winds are blowing
●When vehicle horns, vehicle detec-tors, motorcycle engines, air brakes of large vehicles, the clearance sonar of
other vehicles or other devices which produce ultrasonic waves are near the vehicle
●If the front of the vehicle is raised or lowered due to the carried load
●If the orientation of a sensor has been changed due to a collision or other
impact
●The vehicle is approaching a tall or
curved curb
●Driving close to columns (H-shaped
steel beams, etc.) in multi-story park- ing garages, construction sites, etc.
●If the vehicle cannot be driven in a
stable manner, such as when the vehicle has been in an accident or is malfunctioning
●On an extremely bumpy road, on an incline, on gravel, or on grass
●When a tire chains, compact spare tire or an emergency tire puncture repair
kit is used
■Detection range of the sensors
Approximately 100 cm (3.3 ft.)
Approximately 150 cm (4.9 ft.)
Approximately 60 cm (2.0 ft.)
The diagram shows the detection range
of the sensors. Note that the sensors
cannot detect objects that are
Sensor detection display,
object distance