2021 TOYOTA YARIS HATCHBACK lane assist

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4
Driving
Driving
4-1. Before driving
Driving the vehicle ............ 144
Cargo and luggage ........... 151
Trailer towing (vehicles without
towing packages - including
Reunion) ......................... 152
Trailer towing (vehicles with
towing packages - except for
Reunion) ......................... 152
4-2. Driving procedures
Engine (ignition) switch (vehi-
cles without a smart entry &
start system) ................... 158
Engine (ignition) switch (vehi-
cles with a smart entry & start
system) ........................... 159
Multidrive .......................... 164
Manual transmission......... 168
Turn signal lever ............... 171
Parking brake ................... 171
4-3. Operating the lights and wip-
ers
Headlight switch ............... 173
Automatic High Beam ....... 177
Fog light switch ................. 180
Windshield wipers and washer
....................................... 181
Rear window wiper and washer
....................................... 184
4-4. Refueling
Opening the fuel tank cap. 186
4-5. Using the driving support
systems
Toyota Safety Sense ......... 188
PCS (Pre-Collision System)
........................................ 193
LTA (Lane Tracing Assist) . 203
Dynamic radar cruise control
........................................ 213
Speed limiter ..................... 224
RSA (Road Sign Assist) .... 226
Stop & Start system .......... 230
BSM (Blind Spot Monitor) . 237
Toyota parking assist-sensor
........................................ 242
RCTA (Rear Crossing Traffic
Alert) ............................... 247
PKSB (Parking Support Brake)
........................................ 251
Parking Support Brake function
(static objects) ................ 256
Parking Support Brake function
(rear-crossing vehicles) .. 262
Driving mode select switch 266
GPF (Gasoline Particulate Fil-
ter) system ...................... 267
Driving assist systems ...... 268
4-6. Driving tips
Winter driving tips ............. 274

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4-5. Using the driving support systems
4-5.Using the d riving s upport sy ste ms
*: If equipped
■PCS (Pre-Collision System)
→ P. 1 9 3
■LTA (Lane Tracing Assist)
→ P. 2 0 3
■AHB (Automatic High Beam)
→ P. 1 7 7
■RSA (Road Sign Assist) (if
equipped)
→ P. 2 2 6
■Dynamic radar cruise control
→ P. 2 1 3
Two types of sensors, located
behind the front grille and wind-
shield, detect information neces-
sary to operate the drive assist
systems.
Radar sensor
Front camera
Toyota Safety Sense*
The Toyota Safety Sense con-
sists of the following drive
assist systems and contrib-
utes to a safe and comfortable
driving experience:
Driving assist system
WARNING
■Toyota Safety Sense
The Toyota Safety Sense is designed to operate under the assumption that the driver will drive safely, and is
designed to help reduce the impact to the occupants and the vehicle in the case of a collision or assist the driver
in normal driving conditions. As there is a limit to the degree of rec-ognition accuracy and control perfor-
mance that this system can provide, do not overly rely on this system. The driver is always responsible for paying
attention to the vehicle’s surroundings and driving safely.
Sensors
WARNING
■To avoid malfunction of the radar sensor
Observe the following precautions.
Otherwise, the radar sensor may not operate properly, possibly leading to an accident resulting in death or seri-
ous injury.

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4-5. Using the driving support systems
steering, emergency steering assist
will assist the steering movements
to help enhance the vehicle stability
and for lane departure prevention.
■Intersection right/left turn
assistance
If the system determines that there
is a high possibility of a collision in
the following situations, it will assist
with a Pre-collision warning and, if
necessary Pre-collision braking.
Depending on the configuration of
the intersection, it may not be pos-
sible to support.
z When you turn right/left at an
intersection and cross the path of
an oncoming vehicle
z When you turn right/left, pedes-
trian is detected in the forward
direction and estimated to enter
your vehicle’s path (bicyclists are
not detected.)
WARNING
■Limitations of the pre-collision system
●The driver is solely responsible for safe driving. Always drive safely, taking care to observe your sur-
roundings. Do not use the pre-collision system instead of normal braking opera-
tions under any circumstances. This system will not prevent colli-sions or lessen collision damage or
injury in every situation. Do not overly rely on this system. Failure to do so may lead to an accident,
resulting in death or serious injury.
●Although this system is designed to
help avoid a collision or help reduce the impact of the collision, its effec-tiveness may change according to
various conditions, therefore the system may not always be able to achieve the same level of perfor-
mance. Read the following conditions care-fully. Do not overly rely on this sys-
tem and always drive carefully.
• Conditions under which the system
may operate even if there is no pos- sibility of a collision: →P. 1 9 9
• Conditions under which the system may not operate properly: →P. 2 0 1

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4-5. Using the driving support systems
Driving
WARNING
●Do not attempt to test the operation of the pre-collision system yourself.
Depending on the objects used for testing (dummies, cardboard objects imitating detectable objects,
etc.), the system may not operate properly, possibly leading to an accident.
■Pre-collision braking
●When the pre-collision braking
function is operating, a large amount of braking force will be applied.
●If the vehicle is stopped by the operation of the pre-collision brak-
ing function, the pre-collision brak- ing function operation will be canceled after approximately 2 sec-
onds. Depress the brake pedal as necessary.
●The pre-collision braking function may not operate if certain opera-tions are performed by the driver. If
the accelerator pedal is being depressed strongly or the steering wheel is being turned, the system
may determine that the driver is tak- ing evasive action and possibly pre-vent the pre-collision braking
function from operating.
●In some situations, while the pre-
collision braking function is operat- ing, operation of the function may be canceled if the accelerator pedal
is depressed strongly or the steer- ing wheel is turned and the system determines that the driver is taking
evasive action.
●If the brake pedal is being
depressed, the system may deter- mine that the driver is taking eva-sive action and possibly delay the
operation timing of the pre-collision braking function.
■Emergency steering assist
●As emergency steering assist oper-ation will be canceled when the sys-
tem determines that lane departure prevention function has been com-pleted.
●Emergency steering assist may not operate or may be cancel in the fol-
lowing cases as the system may determine the driver is taking actions.
• If the accelerator pedal is being depressed strongly, the steering
wheel is being operated sharply, the brake pedal is being depressed or the driver is giving turn signal. In
this case the system may deter- mine that the driver is taking eva-sive action and the emergency
steering assist may not operate.
• In some situations, while the emer-
gency steering assist is operating, operation of the function may be canceled if the accelerator pedal is
depressed strongly, the steering wheel is operated sharply or the brake pedal is being depressed and
the system determines that the driver is taking evasive action.
• When the emergency steering assist is operating, if the steering wheel is held firmly or is operated in
the opposite direction to that which the system is generating torque, the function may be canceled.
■When to disable the pre-colli-sion system
In the following situations, disable the system, as it may not operate prop-erly, possibly leading to an accident
resulting in death or serious injury:
●When the vehicle is being towed
●When your vehicle is towing another vehicle

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4-5. Using the driving support systems
Driving
●Intersection right/left turn assistance (pre-collision braking)
When the turn signal is not operating, support for turning left or right at an intersec-
tion which targets oncoming vehicles does not work.
■Object detection function
The system detects objects based on
their size, profile, motion, etc. However,
an object may not be detected depend-
ing on the surrounding brightness and
the motion, posture, and angle of the
detected object, preventing the system
from operating properly. (→P.201)
The illustration shows an image of
detectable objects.
■Conditions under which the system
may operate even if there is no pos-
sibility of a collision
●In some situations such as the follow-
ing, the system may determine that
there is a possibility of a frontal colli-
sion and operate.
• When passing a detectable object,
etc.
• When changing lanes while overtak-
ing a detectable object, etc.
• When approaching a detectable
object in an adjacent lane or on the
roadside, such as when changing the
course of travel or driving on a wind-
ing road• When rapidly closing on a detectable
object, etc.
• When approaching objects on the
roadside, such as detectable objects,
guardrails, utility poles, trees, or walls
• When there is a detectable object or
other object by the roadside at the
entrance of a curve
• When there are patterns or paint in
front of your vehicle that may be mis-
taken for a detectable object
• When the front of your vehicle is hit by
water, snow, dust, etc.
• When overtaking a detectable object
that is changing lanes or making a
right/left turn
Detectable
objectsVehicle speedOncoming vehicle
speedRelative speed
between your vehicle
and object
Ve hi cl e sApprox. 15 to 25 km/h
(10 to 15 mph)Approx. 30 to 45 km/h
(20 to 28 mph)Approx. 45 to 70 km/h
(28 to 43 mph)
PedestriansApprox. 10 to 25 km/h
(7 to 15 mph)-Approx. 10 to 25 km/h
(7 to 15 mph)

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4-5. Using the driving support systems
• If a pedestrian/bicyclist is wearing
oversized clothing (a rain coat, long
skirt, etc.), making their silhouette
obscure
• If a pedestrian is bending forward or
squatting or bicyclist is bending for-
ward
• If a pedestrian/bicyclist is moving fast
• If a pedestrian is pushing 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
• When driving in a traffic lane sepa-rated by more than 2 lanes where
oncoming vehicles are driving while
making a right/left turn
• When largely out of place with the
opposite facing targeted oncoming
vehicle during a right/left turn
• While making a right/left turn, when a
pedestrian approaches from behind or
side of your vehicle
●In addition to the above, in some situ-
ations, such as the following, the
emergency steering assist may not
operate.
• When the white (yellow) lane lines are
difficult to see, such as when they are
faint, diverging/merging, or a shadow
is cast upon them
• When the lane is wider or narrower
than normal
• When there is a light and dark pattern
on the road surface, such as due to
road repairs
• When a pedestrian is detected near
the centerline of the vehicle
• When there is insufficient safe or
unobstructed space for the vehicle to
be steered into
• If oncoming vehicle is present
• If VSC function is operating
●In some situations such as the follow-
ing, sufficient braking force or steering
force may not be obtained, preventing
the system from performing properly:

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4-5. Using the driving support systems
Driving
• If the braking functions cannot operate
to their full extent, such as when the
brake parts are extremely cold,
extremely hot, or wet
• If the vehicle is not properly main-
tained (brakes or tires are excessively
worn, improper tire inflation pressure,
etc.)
• When the vehicle is being driven on a
gravel road or other slippery surface
• When the road surface has deep
wheel tracks
• When driving on a hill road
• When driving on a road that has
inclines to the left or right
■If VSC is disabled
●If VSC is disabled (→P.270), the pre-
collision brake assist and pre-collision
braking functions are also disabled.
●The PCS warning light will turn on and
“VSC Turned OFF Pre-Collision Brake
System Unavailable” will be displayed
on the multi-information display.
*: If equipped
LTA (Lane Tracing
Assist)
*
When driving on highways and
freeways with white (yellow)
lane lines, this function alerts
the driver when the vehicle
might depart from its lane or
course
* and provides assis-
tance by operating the steering
wheel to keep the vehicle in its
lane or course
*. Furthermore,
the system provides steering
assistance when dynamic
radar cruise control is operat-
ing to keep the vehicle in its
lane.
The LTA system recognizes
white (yellow) lane lines or a
course
* using the front cam-
era. Additionally, it detects pre-
ceding vehicles using the front
camera and radar.
*: Boundary between asphalt and the
side of the road, such as grass,
soil, or a curb

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4-5. Using the driving support systems
Driving
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,
or a curb
■Vehicle sway warning function
When the vehicle is swaying within
a lane, the warning buzzer will
sound and a message will be dis-
played on the multi-information dis-
play to alert the driver.