mount TOYOTA GR YARIS 2021 User Guide

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YARIS(GR) Owner's Manual_Europe_M52L09_en
4-5. Using the driving support systems
end, such as an unloaded truck
• If a preceding vehicle has a low rear
end, such as a low bed trailer
• If a vehicle ahead has extremely high
ground clearance
• If a vehicle ahead is carrying a load
which protrudes past its rear bumper
• If a vehicle ahead is irregularly
shaped, such as a tractor or side car
• For region A: If a vehicle ahead is a
child sized bicycle, a bicycle that is
carrying a large load, a bicycle ridden
by more than one person, or a
uniquely shaped bicycle (bicycle with
a child seat, tandem bicycle, etc.)
• For region A: If a pedestrian/or the rid-
ing height of a bicyclist ahead is
shorter than approximately 1 m (3.2
ft.) or taller than approximately 2 m
(6.5 ft.)
• For region A: If a pedestrian/bicyclist
is wearing oversized clothing (a rain
coat, long skirt, etc.), making their sil-
houette obscure
• For region A: If a pedestrian is bend-
ing forward or squatting or bicyclist is
bending forward
• For region A: If a pedestrian/bicyclist
is moving fast
• For region A: If a pedestrian is push-
ing a stroller, wheelchair, bicycle or
other vehicle
• When driving in inclement weather such as heavy rain, fog, snow or a
sandstorm
• When driving through steam or smoke
• When the surrounding area is dim,
such as at dawn or dusk, or while at
night or in a tunnel, making a detect-
able object appear to be nearly the
same color as its surroundings
• When driving in a place where the sur-
rounding brightness changes sud-
denly, such as at the entrance or exit
of a tunnel
• After the engine has started the vehi-
cle has not been driven for a certain
amount of time
• While making a left/right turn and for a
few seconds after making a left/right
turn
• While driving on a curve and for a few
seconds after driving on a curve
• If your vehicle is skidding
• If the front of the vehicle is raised or
lowered
• If the wheels are misaligned
• If a wiper blade is blocking the front
camera
• The vehicle is being driven at
extremely high speeds
• When driving on a hill
• If the radar sensor or front camera is
misaligned
• For region A: When driving in a traffic
lane separated by more than one lane
where oncoming vehicles are driving
while making a right/left turn
• For region A: When largely out of
place with the opposite facing tar-
geted oncoming vehicle during a
right/left turn

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4-5. Using the driving support systems
*: If equipped
While driving on a road with clear
white (yellow) lane lines, the LTA
system warns the driver if the vehi-
cle may deviate from the current
lane or course*, and also can
slightly operate the steering wheel
to help avoid deviation from the
lane or course*. Also, while the
dynamic radar cruise control is
operating, this system will operate
the steering wheel to maintain the
vehicle’s lane position.
The LTA system recognizes white
(yellow) lane lines or a course*
using the front camera. Additionally,
it detects preceding vehicles using
the front camera and radar.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
LTA (Lane Tracing
Assist)*
Summary of functions
WARNING
■Before using LTA system
●Do not rely solely upon the LTA sys-
tem. The LTA system does not automatically drive the vehicle or reduce the amount of attention that
must be paid to the area in front of the vehicle. The driver must always assume full responsibility for driving
safely by paying careful attention to the surrounding conditions and operating the steering wheel to cor-
rect the path of the vehicle. Also, the driver must take adequate breaks when fatigued, such as from
driving for a long period of time.
●Failure to perform appropriate driv-
ing operations and pay careful attention may lead to an accident, resulting in death or serious injury.
■Situations unsuitable for LTA system
In the following situations, use the LTA switch to turn the system off. Fail-ure to do so may lead to an accident,
resulting in death or serious injury.
●Vehicle is driven on a road surface
which is slippery due to rainy weather, fallen snow, freezing, etc.
●Vehicle is driven on a snow-cov-ered road.
●White (yellow) lines are difficult to see due to rain, snow, fog, dust, etc.
●Vehicle is driven in a temporary lane or restricted lane due to con-
struction work.
●Vehicle is driven in a construction
zone.
●A spare tire, tire chains, etc., are
equipped.
●When the tires have been exces-
sively worn, or when the tire infla- tion pressure is low.

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4-5. Using the driving support systems
WARNING
●Vehicle is driven where the road diverges, merges, etc.
●Repair marks of asphalt, white (yel-low) lines, etc., are present due to
road repair.
●There are shadows on the road that
run parallel with, or cover, the white (yellow) lines.
●The vehicle is driven in an area without white (yellow) lines, such as in front of a tollgate or checkpoint,
or at an intersection, etc.
●The white (yellow) lines are
cracked, “Raised pavement marker” or stones are present.
●The white (yellow) lines cannot be seen or are difficult to see due to sand, etc.
●The vehicle is driven on a road sur-face that is wet due to rain, pud-dles, etc.
●The traffic lines are yellow (which may be more difficult to recognize
than lines that are white).
●The white (yellow) lines cross over
a curb, etc.
●The vehicle is driven on a bright
surface, such as concrete.
●If the edge of the road is not clear
or straight.
●The vehicle is driven on a surface
that is bright due to reflected light, etc.
●The vehicle is driven in an area where the brightness changes sud-denly, such as at the entrances and
exits of tunnels, etc.
●Light from the headlights of an
oncoming vehicle, the sun, etc., enters the camera.
●The vehicle is driven on a slope.
●The vehicle is driven on a road
which tilts left or right, or a winding road.
●The vehicle is driven on an unpaved or rough road.
●The traffic lane is excessively nar-row or wide.
●The vehicle is extremely tilted due to carrying heavy luggage or having improper tire pressure.
●The distance to the preceding vehi-cle is extremely short.
●The vehicle is moving up and down a large amount due to road condi-
tions during driving (poor roads or road seams).

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YARIS(GR) Owner's Manual_Europe_M52L09_en
4-5. Using the driving support systems
Driving
■Lane departure alert function
When the system determines that
the vehicle might depart from its
lane or course*, a warning is dis-
played on the multi-information dis-
play, and a warning buzzer will
sound to alert the driver.
When the warning buzzer sounds,
check the area around your vehicle and
carefully operate the steering wheel to
move the vehicle back to the center of
the lane.
Vehicle with BSM: When the system
determines that the vehicle might
depart from its lane and that the possi-
bility of a collision with an overtaking
vehicle in the adjacent lane is high, the
lane departure alert will operate even if
the turn signals are operating.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
■Steering assist function
When the system determines that
the vehicle might depart from its
lane or course*, the system pro-
vides assistance as necessary by
operating the steering wheel in
small amounts for a short period of
time to keep the vehicle in its lane.
Vehicle with BSM: When the system
determines that the vehicle might
depart from its lane and that the possi-
bility of a collision with an overtaking
vehicle in the adjacent lane is high, the
steering assist function will operate
even if the turn signals are operating.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
WARNING
●When driving in a tunnel or at night with the headlights off or when a
headlight is dim due to its lens being dirty or it being misaligned.
●The vehicle is struck by a cross-wind.
●The vehicle is affected by wind from a vehicle driven in a nearby lane.
●The vehicle has just changed lanes or crossed an intersection.
●Tires which differ by structure, man-ufacturer, brand or tread pattern are used.
●When tires of a size other than specified are installed.
●Snow tires, etc., are equipped.
●The vehicle is being driven at extremely high speeds.
Functions included in LTA
system

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4-5. Using the driving support systems
Driving
• LTA is turned on.
• Vehicle speed is approximately 50
km/h (32 mph) or more.
*1
• System recognizes white (yellow) lane
lines or a course*2. (When a white
[yellow] line or course*2 is recognized
on only one side, the system will oper-
ate only for the recognized side.)
• Width of traffic lane is approximately 3
m (9.8 ft.) or more.
• Turn signal lever is not operated.
(Vehicle with BSM: Except when
another vehicle is in the lane on the side
where the turn signal was operated)
• Vehicle is not being driven around a
sharp curve.
• No system malfunctions are detected.
(→P.181)
*1: The function operates even if the
vehicle speed is less than approxi-
mately 50 km/h (32 mph) when the
lane centering function is operating.
*2: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
●Steering assist function
This function operates when all of the
following conditions are met in addition
to the operation conditions for the lane
departure alert function.
• Vehicle is not accelerated or deceler-
ated by a fixed amount or more.
• Steering wheel is not operated with a
steering force level suitable for chang-
ing lanes.
• ABS, VSC, TRC and PCS are not
operating.
• TRC or VSC is not turned off.
• Hands off steering wheel warning is
not displayed. (→P.180)
●Vehicle sway warning function
This function operates when all of the
following conditions are met.
• Setting for “Sway Warning” in of
the multi-information display is set to
“ON”. (→P.361)• Vehicle speed is approximately 50
km/h (32 mph) or more.
• Width of traffic lane is approximately 3
m (9.8 ft.) or more.
• No system malfunctions are detected.
(→P.181)
●Lane centering function
This function operates when all of the
following conditions are met.
• LTA is turned on.
• Setting for “Lane Center” in of the
multi-information display is set to “ON”
(→P.361)
• This function recognizes white (yel-
low) lane lines or the position of a pre-
ceding vehicle (except when the
preceding vehicle is small, such as a
motorcycle).
• The dynamic radar cruise control is
operating in vehicle-to-vehicle dis-
tance control mode.
• Width of traffic lane is approximately 3
to 4 m (10 to 13 ft.).
• Turn signal lever is not operated.
• Vehicle is not being driven around a
sharp curve.
• No system malfunctions are detected.
(→P.181)
• Vehicle does not accelerate or decel-
erate by a fixed amount or more.
• Steering wheel is not operated with a
steering force level suitable for chang-
ing lanes.
• ABS, VSC, TRC and PCS are not
operating.
• TRC or VSC is not turned off.
• Hands off steering wheel warning is
not displayed. (→P.180)
• The vehicle is being driven in the
center of a lane.
• Steering assist function is not operat-
ing.
■Temporary cancelation of functions
●When operation conditions are no lon-
ger met, a function may be temporar-
ily canceled. However, when the
operation conditions are met again,
operation of the function is automati-
cally restored. (→P.178)

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4-5. Using the driving support systems
●If the operation conditions (→P.178)
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
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.361)
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.194), 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.158, 323)
■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.187) 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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4-5. Using the driving support systems
Driving
signs, display the incorrect sign, etc.
However, this does not indicate a mal-
function.
●The front camera is misaligned due to
a strong impact being applied to the
sensor, etc.
●Dirt, snow, stickers, etc., are on the
windshield near the front camera.
●In inclement weather such as heavy
rain, fog, snow or sand storms.
●Light from an oncoming vehicle, the
sun, etc., enters the front camera.
●The sign is dirty, faded, tilted or bent.
●The contrast of electronic sign is low.
●All or part of the sign is hidden by the
leaves of a tree, a pole, etc.
●The sign is only visible to the front
camera for a short amount of time.
●The driving scene (turning, lane
change, etc.) is judged incorrectly.
●If a sign not appropriate for the cur-
rently traveled lane, but the sign exists
directly after a freeway branches, or in
an adjacent lane just before merging.
●Stickers are attached to the rear of the
preceding vehicle.
●A sign resembling a system compati-
ble sign is recognized.
●Side road speed signs may be
detected and displayed (if positioned
in sight of the front camera) while the
vehicle is traveling on the main road.
●Roundabout exit road speed signs
may be detected and displayed (if
positioned in sight of the front camera)
while traveling on a roundabout.
●The front of the vehicle is raised or
lowered due to the carried load.
●The surrounding brightness is not suf-
ficient or changes suddenly.
●When a sign intended for trucks, etc.,
is recognized.
●The vehicle is driven in a country with
a different direction of traffic.
●The navigation system map data is outdated.
●The navigation system is not operat-
ing.
●The speed information displayed on
the meter and on the navigation sys-
tem may be different due to the navi-
gation system using map data.
■Speed limit sign display
If the engine switch was last turned off
while a speed limit sign was displayed
on the multi-information display, the
same sign displays again when the
engine switch is turned to ON.
■If “RSA Malfunction Visit Your
Dealer” is shown
The system may be malfunctioning.
Have the vehicle inspected by any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
■Customization
Some functions can be customized.
(Customizable features: →P.361)

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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.197)
●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