Toyota Grand Highlander 2024 User manual

Owner’s Manual Excerpt for
Driving Support Systems
Grand Highlander
2024
Toyota Safety Sense 3.0 software update...........233
Toyota Safety Sense 3.0......................................235
LTA (Lane Tracing Assist)...................................257
LCA (Lane Change Assist)..................................262
Emergency Driving Stop System......................... 298
Trafc Jam Assist ................................................301
This document contains excerpts from the vehicle’s Owner’s Manual
for certain driving support systems.
Refer to the full Owner’s Manual for detail on all vehicle systems.
All page numbers refer to the page of the Owner’s Manual.

233
4-5. Using the driving support systems
4
Driving
4-5.Using the driv ing support systems
This Owner’s Manual contains
information for Ver. 2. For the
latest information about the con-
trols, use, warnings/precautions,
etc. of each function of Toyota
Safety Sense 3.0, refer to the
Digital Owner’s Manual at the
Owner’s Manual website.
If the software of this system
has been updated after initial
purchase of the vehicle, before
using this system, be sure to
read the Owner’s Manual which
corresponds to the software ver-
sion of the system.
■ Precautions for use
● Be aware that some functions
may temporarily be disabled if a
legal or safety related issue
occurs.
● If a connected services contract
has not been entered or has
expired, software updates will not
be able to be performed
wirelessly.
If the software of this system
has been updated after initial
purchase of the vehicle, to
access the appropriate Owner’s
Manual, it is necessary to check
the software version of the sys-
tem and then visit the Owner’s
Manual website.
The software version of the sys-
tem can be checked using One-
App.
1Access the following URL
using a computer or
smartphone:
Toyota Safety Sense
3.0 software update
It is necessary to enter a
connected services con-
tract, provided by Toyota, to
use these functions. For
details, contact your Toyota
dealer.
WARNING
■ For safe use
When the Toyota Safety Sense
3.0 software is updated, the oper-
ating methods of functions may
change. Using this system without
knowing the correct operating
methods may lead to an accident
resulting in death or serious injury.
● Make sure to read the Digital
Owner’s Manual which corre-
sponds to the software version
of the system, available at the
Owner’s Manual website,
before using this system.
Content of the Toyota
Safety Sense 3.0 Owner’s
Manual
Checking your vehicle’s
Toyota Safety Sense 3.0
version
Checking the version
using OneApp
Selecting your vehicle’s
Toyota Safety Sense 3.0
version

234 4-5. Using the driving support systems
 For U.S.A. owners
https://www.toyota.com/
owners/resources/
warranty-owners-manuals/
manual?om=om0e126u.
grandhighlander.2024.2306.cv.vh
 For Canadian owners
https://www.toyota.ca/toyota/
owners/manual?
om=om0e126u.
grandhighlander.2024.2306.cv.vh
2Select the file which includes
the previously checked sys-
tem version.
If a software update is available,
a notification will be displayed
by OneApp. Follow the instruc-
tions displayed on the screen.
■ Software update precautions
● After a software update has been
performed, it will not be possible
to revert to a previous version.
● Depending on the communication
environment and the content of an
update, a software update may
take several hours. Although an
update will be suspended when
the engine switch is turned off, it
will resume when the engine
switch is changed back to ON.
● Toyota Safety Sense 3.0 can still
be used while a software update is
being performed.
■ What can be checked using the
OneApp
The following items can be checked
or performed.
● Software version, update details,
precautions, use methods, etc.
● Software update
Updating the software

235
4-5. Using the driving support systems
4
Driving
Toyota Safety Sense
3.0
The Toyota Safety Sense 3.0
consists of the driving
assist systems and contrib-
utes to a safe and comfort-
able driving experience:
WARNING
■ Toyota Safety Sense 3.0
The Toyota Safety Sense 3.0
operates under the assumption
that the driver will drive safely,
and is designed to help reduce
the impact to the occupants in a
collision and assist the driver
under normal driving conditions.
As there is a limit to the degree of
recognition accuracy and control
performance that this system can
provide, do not overly rely on this
system. The driver is solely
responsible for paying attention to
the vehicle’s surroundings and
driving safely.
■ For safe use
● Do not overly rely on this sys-
tem. The driver is solely respon-
sible for paying attention to the
vehicle’s surroundings and driv-
ing safely. This system may not
operate in all situations and pro-
vided assistance is limited.
Over-reliance on this system to
drive the vehicle safely may
lead to an accident resulting in
death or serious injury.
● Do not attempt to test the oper-
ation of the system, as it may
not operate properly, possibly
leading to an accident.
● If attention is necessary while
performing driving operations or
a system malfunction occurs, a
warning message or warning
buzzer will be operated. If a
warning message is displayed
on the display, follow the
instructions displayed.
● Depending on external noise,
the volume of the audio system,
etc. it may be difficult to hear the
warning buzzer. Also, depend-
ing on the road conditions, it
may be difficult to recognize the
operation of the system.
■ When it is necessary to dis-
able the system
In the following situations, make
sure to disable the system.
Failure to do so may lead to the
system not operating properly,
possibly leading to an accident
resulting in death or serious injury.
● When the vehicle is tilted due to
being overloaded or having a
flat tire
● When driving at extremely high
speeds
● When towing another vehicle
● When the vehicle is being trans-
ported by a truck, ship, train,
etc.
● When the vehicle is raised on a
lift and the tires are allowed to
rotate freely
● When inspecting the vehicle
using a drum tester such as a
chassis dynamometer or speed-
ometer tester, or when using an
on vehicle wheel balancer
● When the vehicle is driven in a
sporty manner or off-road
● When using an automatic car
wash

236 4-5. Using the driving support systems
■ AHB (Automatic High
Beam)
P.220
■ PCS (Pre-Collision System)
P.245
■ LTA (Lane Tracing Assist)
P.257
■ LDA (Lane Departure Alert)
P.265
■ LCA (Lane Change Assist)
*
P.262
*
: If equipped
■ FCTA (Front Cross Traffic
Alert)
*
P.277
*
: If equipped
■ PDA (Proactive Driving
Assist)
P.271
■ RSA (Road Sign Assist)
*
P.280
*
: If equipped
■ Dynamic radar cruise con-
trol
P.282
■ Cruise control
P.294
■ Emergency Driving Stop
System
*
P.298
*
: If equipped
■ Traffic Jam Assist
*
P.301
*
: If equipped
■ Driver monitor
*
P.243
*
: If equipped
Various sensors are used to
obtain the necessary informa-
tion for system operation.
WARNING
● When a sensor is misaligned or
deformed due to a strong
impact being applied to the sen-
sor or the area around the sen-
sor
● When accessories which
obstruct a sensor or light are
temporarily installed to the vehi-
cle
● When a compact spare tire or
tire chains are installed to the
vehicle or an emergency tire
puncture repair kit has been
used
● When the tires are excessively
worn or the inflation pressure of
the tires is low
● When tires other than the manu-
facturer specified size are
installed
● When the vehicle cannot be
driven stably, due to a collision,
malfunction, etc.
Driving assist systems
Sensors used by Toyota
Safety Sense 3.0

237
4-5. Using the driving support systems
4
Driving
■ Sensors which detect the
surrounding conditions
Front radar sensor
Front camera
Front side radar sensors*
Rear side radar sensors
*
: If equipped
■ Sensors which detect the
driver condition
Driver monitor camera*
*
: If equipped
WARNING
■ To prevent malfunction of the
radar sensors
Observe the following precau-
tions.
Failure to do so may lead to a
radar sensor not operating prop-
erly, possibly leading to an acci-
dent resulting in death or serious
injury.
A
B
C
A
● Keep the radar sensors and
radar sensor covers clean at all
times.
Clean the front of a radar sensor
or the front or back of a radar sen-
sor cover if it is dirty or covered
with water droplets, snow, etc.
When cleaning the radar sensor
and radar sensor cover, use a soft
cloth to remove dirt so as to not
damage them.
Radar sensor
Radar sensor cover
● Vehicles with front side radar
sensors: Keep the surrounding
area of the front side radar sen-
sors on the front bumper clean
at all times.
● Do not attach accessories,
stickers (including transparent
stickers), aluminum tape, etc. to
a radar sensor or radar sensor
cover and their surrounding
area.
A
B

238 4-5. Using the driving support systems
WARNING
● Do not subject a radar sensor or
its surrounding area to impact.
If a radar sensor, the front grille,
or front bumper has been sub-
jected to a impact, have the
vehicle inspected by your
Toyota dealer.
● Do not disassemble the radar
sensors.
● Do not modify or paint the radar
sensors or radar sensor cover,
or replace them with anything
other than Toyota genuine parts.
● In the following situations, recal-
ibration of the radar sensors will
be necessary. For details, con-
tact your Toyota dealer.
• When a radar sensor is
removed and installed, or
replaced
• When the front bumper or the
front grille has been replaced
■ To prevent malfunction of the
front camera
Observe the following precau-
tions.
Failure to do so may lead to the
front camera not operating prop-
erly, possibly leading to an acci-
dent resulting in death or serious
injury.
● Always keep the windshield
clean.
• If the windshield is dirty or cov-
ered with an oily film, water
droplets, snow, etc., clean the
windshield.
• Even if a glass coating agent is
applied to the windshield, it will
still be necessary to use the
windshield wipers to remove
water droplets, etc. from the
area of the windshield in front of
the front camera.
• If the inner side of the wind-
shield where the front camera is
installed is dirty, contact your
Toyota dealer.
● Do not attach stickers (including
transparent stickers) or other
items to the area of the wind-
shield in front of the front cam-
era (shaded area in the
illustration).
Approximately 1.6 in. (4 cm)
Approximately 1.6 in. (4 cm)
● If the part of the windshield in
front of the front camera is
fogged up or covered with con-
densation or ice, use the wind-
shield defogger to remove the
fog, condensation, or ice.
● If water droplets cannot be
properly removed from the area
of the windshield in front of the
front camera by the windshield
wipers, replace the wiper insert
or wiper blade.
● Do not attach window tint to the
windshield.
● Replace the windshield if it is
damaged or cracked.
If the windshield has been
replaced, recalibration of the
front camera will be necessary.
For details, contact your Toyota
dealer.
● Do not allow liquids to contact
the front camera.
● Do not allow bright lights to
shine into the front camera.
A
B

239
4-5. Using the driving support systems
4
Driving
WARNING
● Do not damage the lens of the
front camera or allow it to
become dirty.
When cleaning the inside of the
windshield, do not allow glass
cleaner to contact the lens of
the front camera. Do not touch
the lens of the front camera.
If the lens of the front camera is
dirty or damaged, contact your
Toyota dealer.
● Do not subject the front camera
to a strong impact.
● Do not change the position or
orientation of the front camera
or remove it.
● Do not disassemble the front
camera.
● Do not modify any parts around
the front camera, such as the
inside rear view mirror or ceil-
ing.
● Do not attach accessories
which may obstruct the front
camera to the hood, front grille,
or front bumper. For details,
contact your Toyota dealer.
● If a surfboard or other long
object is to be mounted on the
roof, make sure that it will not
obstruct the front camera.
● Do not modify or change the
headlights and other lights.
■ Front camera installation area
on the windshield
If the system determines that the
windshield may be fogged up, it
will automatically operate the
heater to defog the part of the
windshield around the front cam-
era. When cleaning, etc., be care-
ful not to touch the area around
the front camera until the wind-
shield has cooled sufficiently, as
touching it may cause burns.
■ Precautions for the driver
monitor camera (if equipped)
Observe the following precau-
tions.
Failure to do so may lead to mal-
function of the driver monitor cam-
era and the systems not operating
properly, possibly leading to an
accident resulting in death or seri-
ous injury.
● Do not subject the driver moni-
tor camera or its surrounding
area to strong impact.
If subjected to a strong impact,
the driver monitor camera may
move out of alignment and the
driver may no longer be detected
correctly. In this case, have the
vehicle inspected by your Toyota
dealer.
● Do not disassemble or modify
the driver monitor camera.
● Do not attach accessories,
stickers (including transparent
stickers), etc. to the driver moni-
tor camera or its surrounding
area.
● Do not allow the driver monitor
camera or its surrounding area
to get wet.
● Do not cover the driver monitor
camera or place anything in
front of it.
● Keep the lens of the driver mon-
itor camera free from damage.
● Do not touch the lens of the
driver monitor camera or allow it
to become dirty.
When there is dirt or fingerprints
on the camera lens, clean it with a
dry, soft cloth so as to not mark or
damage it.
● When cleaning the lens, do not
use detergents or organic sol-
vents that may damage plastic.

240 4-5. Using the driving support systems
■ Situations in which the sensors
may not operate properly
● When the height or inclination of
the vehicle has been changed due
to modifications
● When the windshield is dirty,
fogged up, cracked or damaged
● When the ambient temperature is
high or low
● When mud, water, snow, dead
insects, foreign matter, etc., is
attached to the front of the sensor
● When in inclement weather such
as heavy rain, fog, snow, or a
sandstorm
● When water, snow, dust, etc. is
thrown up in front of the vehicle, or
when driving through mist or
smoke
● When the headlights are not illu-
minated while driving in the dark,
such as at night or when in a tun-
nel
● When the lens of a headlight is
dirty and illumination is weak
● When the headlights are mis-
aligned
● When a headlight is malfunction-
ing
● When the headlights of another
vehicle, sunlight, or reflected light
shines directly into the front cam-
era
● When the brightness of the sur-
rounding area changes suddenly
● When driving near a TV tower,
broadcasting station, electric
power plant, radar equipped vehi-
cles, etc., or other location where
strong radio waves or electrical
noise may be present
● When a wiper blade is blocking
the front camera
● When in a location or near objects
which strongly reflect radio waves,
such as the following:
• Tunnels
• Truss bridges
• Gravel roads
• Rutted, snow-covered roads
• Walls
• Large trucks
• Manhole covers
• Guardrail
• Metal plates
● When near a step or protrusion
● When a detectable vehicle is nar-
row, such as a small mobility vehi-
cle
● When a detectable vehicle has a
small front or rear end, such as an
unloaded truck
● When a detectable vehicle has a
low front or rear end, such as a
low bed trailer
● When a detectable vehicle has
extremely high ground clearance
● When a detectable vehicle is car-
rying a load which protrudes from
its cargo area
● When a detectable vehicle has lit-
tle exposed metal, such as a vehi-
cle which is partially covered with
cloth, etc.
● When a detectable vehicle is
irregularly shaped, such as a trac-
tor, sidecar, etc.
● When the distance between the
vehicle and a detectable vehicle

241
4-5. Using the driving support systems
4
Driving
has become extremely short
● When a detectable vehicle is at an
angle
● When snow, mud, etc. is attached
to a detectable vehicle
● When driving on the following
kinds of roads:
• Roads with sharp curves or wind-
ing roads
• Roads with changes in grade,
such as sudden inclines or
declines
• Roads which is sloped to the left
or right
• Roads with deep ruts
• Roads which are rough and
unmaintained
• Roads which frequently undulate
or are bumpy
● When the steering wheel is being
operated frequently or suddenly
● When the vehicle is not in a con-
stant position within a lane
● When parts related to this system,
the brakes, etc. are cold or
extremely hot, wet, etc.
● When the wheels are misaligned
● When driving on slick road sur-
faces, such as when it is covered
with ice, snow, gravel, etc.
● When the course of the vehicle
differs from the shape of a curve
● When the vehicle speed is exces-
sively high when entering a curve
● When entering/exiting a parking
lot, garage, car elevator, etc.
● When driving in a parking lot
● When driving through an area
where there are obstructions
which may contact your vehicle,
such as tall grass, tree branches,
a curtain, etc.
● When driving in strong wind
■ Situations in which the lane
may not be detected
● When the lane is extremely wide
or narrow
● Immediately after changing lanes
or passing through an intersection
● When driving in a temporary lane
or lane regulated by construction
● When there are structures, pat-
terns, shadows which are similar
to lane lines in the surrounding
● When there are multiple white
lines for a lane line
● When the lane lines are not clear
or driving on a wet road surface
● When a lane line is on a curb
● When driving on a bright, reflec-
tive road surface, such as con-
crete
■ Situations in which some or all
of the functions of the system
cannot operate
● When a malfunction is detected in
this system or a related system,
such as the brakes, steering, etc.
● When the VSC, TRAC, or other
safety related system is operating
● When the VSC, TRAC, or other
safety related system is off
■ Changes in brake operation
sound and pedal response
● When the brakes have been oper-
ated, brake operation sounds may
be heard and the brake pedal
response may change, but this
does not indicate a malfunction.
● When the system is operating, the
brake pedal may feel stiffer than
expected or sink. In either situa-
tion the brake pedal can be
depressed further. Further
depress the brake pedal as nec-
essary.
■ Situations in which the driver
monitor may not operate prop-
erly (if equipped)
In situations such as the following,
the driver monitor camera may not
be able to detect the driver’s face,
and the function may not operate
properly.

242 4-5. Using the driving support systems
● When the inside of the vehicle is
hot, such as after the vehicle has
been parked in the sun
● When a very bright light, such as
the sun or the headlights of follow-
ing vehicle, shines onto the driver
monitor camera
● When the brightness inside the
vehicle changes frequently due to
the shadows of surrounding struc-
tures, etc.
● When a very bright light, such as
the sun or the headlights of an
oncoming vehicle, is shining onto
the driver’s face
● When light, either inside or out-
side of the vehicle, is being
reflected from the lenses of eye-
glasses or sunglasses
● When there are multiple faces in
the detection range of the driver
monitor camera, such as when a
front or rear passenger is leaning
toward the driver’s seat
● When the driver’s face is outside
of the detection range of the driver
monitor camera, such as when
leaned forward or when their head
is outside of the window
● When the driver monitor camera is
being blocked by the steering
wheel, a hand holding the steering
wheel, an arm, etc.
● When the driver is wearing a hat
● When the driver is wearing an
eyepatch
● When the driver is wearing eye-
glasses or sunglasses that do not
easily transmit infrared rays
● When the driver is wearing con-
tact lenses
● When the driver is wearing a face
mask
● When the driver is laughing or
their eyes are only slightly open
● When the driver’s eyes, nose,
mouth, or shape of their face is
blocked
● When the driver is wearing
makeup which makes it difficult to
detect their eyes, nose, mouth, or
shape of their face
● When the driver’s eyes are
blocked by the frame of eye-
glasses, sunglasses, hair, etc.
● When there is a device inside the
vehicle that radiates near infrared
rays, such as a non-genuine
driver monitoring system.

257
4-5. Using the driving support systems
4
Driving
When driving on a road with
clear lane lines with the
dynamic radar cruise control
operating, lane lines and pre-
ceding and surrounding vehi-
cles are detected using the
front camera and radar sen-
sor, and the steering wheel is
operated to maintain the vehi-
cle’s lane position.
Use the this function only on high-
ways and expressways.
If the dynamic radar cruise control
is not operating, the function will not
operate.
In situations where the lane lines
are difficult to see or are not visible,
such as when in a traffic jam, sup-
port will be provided using the path
of preceding and surrounding vehi-
cles.
If the system determines that the
steering wheel has not been oper-
ated for a certain amount of time or
the steering wheel is not being
firmly gripped, the driver will be
alerted and this function will be
temporarily canceled.
If the steering wheel is firmly
gripped, the function will begin
operating again.
When the function is operat-
ing, if the vehicle is likely to
depart from its lane, the driver
will be alerted via a display
and buzzer.
When the buzzer sounds, check
the area around the vehicle and
carefully operate the steering wheel
to move the vehicle back to the
center of the lane.
LTA (Lane Tracing
Assist)
LTA functions

258 4-5. Using the driving support systems
■ Operating conditions of func-
tion
This function is operable when all of
the following conditions are met:
● The LTA system detects lane lines
or the path of preceding or sur-
rounding vehicles.
● The dynamic radar cruise control
is operating.
● The lane width is approximately
10 to 13 ft. (3 to 4 m).
● The turn signal lever is not being
operated.
● The vehicle is not being driven
around a sharp curve.
● The vehicle is not accelerating or
decelerating more than a certain
amount.
● The steering wheel is not being
turned with a large force.
● The hands off steering wheel
warning (P.259) is not operat-
ing.
● The vehicle is being driven in the
center of a lane.
■ Temporary cancelation of func-
tions
● When the operating conditions are
no longer met, a function may be
temporarily canceled. However,
when the operation conditions are
met again, operation of the func-
tion will automatically be restored.
(P.258)
● If the operating conditions of a
function are no longer met while
the function is operating, a buzzer
may sound to indicate that the
function has been temporarily
canceled.
● The steering assist operation of
the function can be overridden by
the steering wheel operation of
the driver.
■ Lane departure warning func-
tion when the LTA is operating
● Even if the LDA warning method is
changed to vibration of the steer-
ing wheel, if the vehicle deviates
from the lane while the LTA is
operating, the warning buzzer will
WARNING
■ Before using the LTA system
● Do not overly rely on the LTA
system. The LTA system is not a
system which provides auto-
mated assistance in driving and
it is not a system which reduces
the amount of attention neces-
sary for safe driving. The driver
is solely responsible for paying
attention to their surroundings
and operating the steering
wheel as necessary to ensure
safety. Also, the driver is
responsible for taking adequate
breaks when fatigued, such as
when driving for a long time.
● Failure to perform appropriate
driving operations and pay care-
ful attention may lead to an
accident.
● When not using the LTA system,
turn it off using the LTA switch.

259
4-5. Using the driving support systems
4
Driving
sound to alert the driver.
● If steering wheel operation equiv-
alent to that necessary for a lane
change is detected, the system
will determine the vehicle is not
deviating from the lane and the
warning will not operate.
■ Hands off steering wheel warn-
ing operation
● When the system determines the
driver is not holding the steering
wheel, a message urging the
driver to grip the steering wheel
and the icon shown in the illustra-
tion will be displayed on the
multi-information display to warn
the driver. If the system detects
that the steering wheel is held, the
warning will be canceled. When
using the system, make sure to
grip the steering wheel firmly,
regardless of whether the warn-
ing is operating or not.
● If no operations are detected for a
certain amount of time, the warn-
ing will operate and the function
will be temporarily canceled. This
warning may also operate if the
driver only operates steering
wheel a small amount continu-
ously.
■ Situations in which the hands
off steering wheel warning may
not operate properly
● Depending on the condition of the
vehicle, handle control condition
and road surface, the warning
function may not operate.
● Vehicles with LCA: In the following
situations, the system may not be
able to detect when the driver’s
hands are off the steering wheel.
• When a steering wheel cover is
installed
• When the driver is wearing gloves
• When foreign matter is attached to
the steering wheel
• When the driver is gripping the
wood trim, seam of the leather,
spokes, or other part of the steer-
ing wheel that does not have sen-
sors
● Vehicles with LCA: In the following
situations, the hands off steering
wheel warning may not operate
and the LTA function may continue
operating even though the driver’s
hands are off the steering wheel:
• When something other than a
hand is contacting the steering
wheel
• When a wide object or arms are
held across the steering wheel
The LTA will change between
ON/OFF each time the LTA
switch is pressed.
When the LTA is ON, the LTA indi-
cator will illuminate.
Enabling/disabling the
system

260 4-5. Using the driving support systems
WARNING
■ Situations in which the func-
tions may not operate prop-
erly
In the following situations, the
functions may not operate prop-
erly and the vehicle may depart
from its lane. Do not overly rely on
these functions. The driver is
solely responsible for paying
attention to their surroundings
and operating the steering wheel
as necessary to ensure safety.
● When a preceding or surround-
ing vehicle changes lanes (Your
vehicle may follow the preced-
ing or surrounding vehicle and
also change lanes)
● When a preceding or surround-
ing vehicle is swaying (Your
vehicle may sway accordingly
and depart from the lane)
● When a preceding or surround-
ing vehicle departs from a lane
(Your vehicle may follow the
preceding or surrounding vehi-
cle and also depart from the
lane)
● When a preceding or surround-
ing vehicle is being driven
extremely close to the left/right
lane line (Your vehicle may fol-
low the preceding or surround-
ing vehicle accordingly and
depart from the lane)
● When there are moving objects
or structures in the surrounding
area (Depending on the position
of the moving object or structure
relative to your vehicle, your
vehicle may sway)
● When the vehicle is struck by a
crosswind or the turbulence of
other nearby vehicles
● Situations in which the sensors
may not operate properly:
P.240
● Situations in which the lane may
not be detected: P.241
● When it is necessary to disable
the system: P.235

261
4-5. Using the driving support systems
4
Driving
The operating state of the LTA system is indicated.
Operation display of steering wheel operation support
Indicator Lane dis-
play
Steering
icon Situation
White Grey/White Grey
LTA is on standby
Green Green Green
LTA is operating
Yellow
Flashing
Yellow
Flashing Green
The vehicle is departing the lane
toward the side which the lane dis-
play is flashing

262 4-5. Using the driving support systems
*
: If equipped
This function is linked to the LTA
and provides assistance in per-
forming lane changes through
steering wheel operations.
Use the this function only on high-
ways and expressways.
The steering assist operation can
be overridden by the steering wheel
operation of the driver.
The lane change assist function is
not designed to operate when
changing lanes at a junction.
■ Operating conditions of func-
tion
This function is operable when all of
the following conditions are met:
● The LTA is operating.
● The lane change assist function is
enabled by a customize setting.
● The vehicle speed is between
approximately 55 and 85 mph (90
and 140 km/h).
● The system detects a broken
white line on the side which the
lane change is to be performed.
● A vehicle is not detected in the
lane toward which the turn signal
is operated.
● The steering wheel is not being
turned with a large force.
● The hands off steering wheel
warning (P.259) is not operat-
LCA (Lane Change
Assist)
*
LCA functions
WARNING
■ Before using the LCA system
● Do not overly rely on the LCA
system.
The LCA system is not a system
which provides automated assis-
tance in driving and it is not a sys-
tem which reduces the need for
checking an adjacent lane for
other vehicles, approaching vehi-
cles, etc. when changing lanes.
The driver is solely responsible for
paying attention to their
surroundings and operating the
steering wheel as necessary to
ensure safety.
Also, do not use the LCA to
change lanes into which a lane
change should not be performed
(oncoming lanes, road shoulders,
etc.).
● Failure to perform appropriate
driving operations and pay care-
ful attention may lead to an
accident.

263
4-5. Using the driving support systems
4
Driving
ing.
■ Cancelation of functions
In the following situations, opera-
tion of the LCA may be canceled
with the display and buzzer:
● When the operating conditions
(P.262) are no longer met
● When the system can no longer
detect lane lines
● When the turn signal lever is oper-
ated to the second position
(P.263)
● When the turn signal lever is oper-
ated in the opposite direction of
the lane change
● When the system detects opera-
tion of the steering wheel, brake
pedal or accelerator pedal by the
driver.
If the system detects that a vehicle
is quickly approaching in the lane
toward which the turn signal is oper-
ated a buzzer will sound and a mes-
sage will be displayed to alert the
driver. At the same time the steering
wheel may be slightly operated to
help keep the vehicle away from the
approaching vehicle.
■ Hands off steering wheel warn-
ing operation
When the system determines the
driver is not holding the steering
wheel, a message urging the driver
to grip the steering wheel and the
icon shown in the illustration will be
displayed on the multi-information
display to warn the driver. If the sys-
tem detects that the steering wheel
is held, the warning will be
canceled. When using the system,
make sure to grip the steering wheel
firmly, regardless of whether the
warning is operating or not.
■ Situations in which the hands
off steering wheel warning may
not operate properly
● Depending on the condition of the
vehicle, handle control condition
and road surface, the warning
function may not operate.
● In the following situations, the sys-
tem may not be able to detect
when the driver’s hands are off
the steering wheel.
• When a steering wheel cover is
installed
• When the driver is wearing gloves
• When foreign matter is attached to
the steering wheel
• When the driver is gripping the
wood trim, seam of the leather,
spokes, or other part of the steer-
ing wheel that does not have sen-
sors
● In the following situations, the
hands off steering wheel warning
may not operate and the LCA
function may continue operating
even though the driver’s hands
are off the steering wheel:
• When something other than a
hand is contacting the steering
wheel
• When a wide object or arms are
held across the steering wheel
If the turn signal lever is held in
the first position, the lane
change direction will be dis-
played and the function will
operate.
Operating the LCA

264 4-5. Using the driving support systems
To change lanes by holding the turn
signal lever in the first position with-
out using the LCA, turn the custom-
ize setting of the LCA off.
1First position: LCA is opera-
tional
2Second position: LCA is not
operational
LCA can be enabled/disabled
through a customize setting.
(P.538)
The operating state of the LCA system is indicated.
WARNING
■ Situations in which the LCA
should not be used
● When driving on a one lane
road
● When there is no broken white
line between the current lane
and the lane to be changed to
Enabling/disabling the
system
Displays and system operation
LCA display Steering
icon Condition
Blue arrow and white
line Green
LCA is operating
Grey
Approaching vehicle detected while
LCA is operating
Not displayed
Grey
Lane line no longer detected while
LCA is operating

298 4-5. Using the driving support systems
*
: If equipped
Emergency Driving
Stop System
*
The emergency driving stop
system is a system which
automatically decelerates
and stops the vehicle within
its lane if the driver
becomes unable to continue
driving the vehicle, such as
if they have suffered a medi-
cal emergency, etc.
During LTA (Lane Tracing
Assist) control, if the sys-
tem does not detect driving
operations, such as if the
driver is not holding the
steering wheel, and deter-
mines the driver is not
responsive, the vehicle will
be decelerated and stopped
within its current lane to
help avoid a collision or
reduce the impact of a colli-
sion.
The vehicle will also
decelerate/stop during the
Traffic Jam Assist (if
equipped) controls, when
no driver’s response to the
vehicle’s warning to hold
the steering wheel is
detected.
WARNING
■ For safe use
● Driving safely is solely the
responsibility of the driver. Pay
careful attention to the sur-
rounding conditions in order to
ensure safe driving. The emer-
gency driving stop system is
designed to provide support in
an emergency where it is diffi-
cult for the driver to continue
driving, such as if they have had
a medical emergency. It is not
designed to support driving
while drowsy or in poor physical
health, or inattentive driving.
● Although the emergency driv-
ing stop system is designed to
decelerate the vehicle within its
lane to help avoid or help
reduce the impact of a collision
if the system determines that it
is difficult for the driver to con-
tinue driving, its effectiveness
may change according to vari-
ous conditions. Therefore, it
may not always be able to
achieve the same level of per-
formance. Also, if the operating
conditions are not met, this
function will not operate.
● After the emergency driving
stop system operates, if driving
becomes possible again, imme-
diately begin driving again or, if
necessary, park the vehicle on
the shoulder of the road and set
a warning reflector and flare to
warn other drivers of your
stopped vehicle.
● After this system operates, pas-
sengers should attend to the
driver as necessary and take
appropriate hazard prevention
measures, such as moving to a
place where safety can be
ensured, such as the shoulder
of the road or behind a guard-
rail.