TOYOTA HIGHLANDER HYBRID 2023 Owners Manual

2614-5. Using the driving support systems
4
Driving
This function operates when all of
the following cond itions are met.
• LTA is turned on.
• Vehicle speed is approximately 32
mph (50 km/h) 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 operat e only for the
recognized side.)
• Width of traffic lane is approxi- mately 9.8 ft. ( 3 m) or more.
• Turn signal lever is not operated.
(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.263)
*1: The function opera tes even if the
vehicle speed is less than
approximately 32 mph (50 km/h)
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 oper ates 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
decelerated by a fixed amount or
more.
• Steering wheel is not operated
with a steering force level suitable
for changing lanes.
• ABS, VSC, TRAC and PCS are
not operating.
• TRAC or VSC is not turned off.
●Vehicle sway warning function
This function oper ates when all of
the following cond itions are met.
• Setting for “Sway Warning” in of the multi-information display is
set to “ON”. ( P.102, 112) • Vehicle speed is approximately 32
mph (50 km/h) or more.
• Width of traffic lane is approxi-
mately 9.8 ft. (3 m) or more.
• No system malfunctions are detected. ( P.263)
●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 are
set to “ON”. ( P.102, 112)
• This function recognizes white
(yellow) lane lines or the position
of a preceding v ehicle (except
when the preceding vehicle is
small, such as a motorcycle).
• The dynamic radar cruise control with full-speed ran ge is operating
in vehicle-to-vehicle distance con-
trol mode.
• Width of traffic lane is approxi-
mately 10 to 13 ft. (3 to 4 m).
• Turn signal lever is not operated.
• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. ( P.263)
• Vehicle does not accelerate or decelerate by a fixed amount or
more.
• Steering wheel is not operated with a steering force level suitable
for changing lanes.
• ABS, VSC, TRAC and PCS are
not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning
is not displayed. ( P.262)
• The vehicle is being driven in the
center of a lane.
• Steering assist function is not operating.
■Temporary cancelation of func-
tions
●When operation conditions are no
longer met, a function may be
temporarily canceled. However,
when the operation conditions are
met again, operation of the func-
tion is automatically restored.

2624-5. Using the driving support systems
( P.260)
●If the operation conditions
( P.260) are no longer met while
the lane centering function is
operating, the buzzer may sound
to indicate that the function has
been temporarily canceled.
■Steering assist function/lane
centering function
●Depending on the vehicle speed,
lane departure situation, road con-
ditions, etc., the driver may not
feel the function is operating or
the function may not operate at
all.
●The steering control of the func-
tion is overridden by the driver’s
steering wheel operation.
●Do not attempt to test the opera-
tion of the steering assist function.
■Lane departure alert function
●The warning buzzer may be diffi-
cult to hear due to external noise,
audio playback, etc.
●If the edge of the course* is not
clear or straight, the lane depar-
ture alert function may not oper-
ate.
●It may not be possi ble for the sys-
tem to determine i f there is a dan-
ger of a collision with a vehicle in
an adjacent lane.
●Do not attempt to test the opera-
tion 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 warn-
ing
In the following situations, a warning
message urging the driver to hold
the steering wheel and the symbol
shown in the illustration are dis-
played on the multi-information dis-
play 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 the
driver is not hold
ing the steering
wheel while the lane centering
function 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 can-
celed. This warning also operates in
the same way when the driver con-
tinuously operates the steering
wheel only a s mall 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.
●When the system determines that
the driver is driving without hold-
ing the steering wheel while the
steering wheel assi st of the steer-
ing assist function is operating.
If the driver continues to keep their
hands off of the steering wheel and
the steering wheel assist is operat-
ing, the buzzer sounds and the
driver is warned. Each time the
buzzer sounds, the continuing time
of the buzzer becomes longer.
■Vehicle sway warning function
When the system determines that
the vehicle is swaying while the

2634-5. Using the driving support systems
4
Driving
vehicle sway warning function is
operating, a buzzer sounds and a
warning message urging the driver
to rest and the symbol shown in the
illustration are simultaneously dis-
played on the multi-information dis-
play.
Depending on the vehicle and road
conditions, the warning may not
operate.
■Warning message
If the follo wing warning message is
displayed on the multi-information
display and the LT A indicator illumi-
nates in orange, follow the appropri-
ate troubleshooting procedure. Also,
if a different warning message is
displayed, follow the instructions
displayed on the screen.
●“LTA Malfunction Visit Your
Dealer”
The system may not be operating
properly. Have the vehicle inspected
by your Toyota dealer.
●“LTA Unavailable”
The system is tempo rarily canceled
due to a malfuncti on in a sensor
other than the front camera. Turn
the LTA system off, wait for a little
while, and then turn the LTA system
back on.
●“LTA Unavailable at Current
Speed”
The function cannot be used as the
vehicle speed exceeds the LTA
operation range. Drive slower.
■Customization
Function settings can be changed.
(Customizable features: P.510)
■Meter display
Multi-information display
Set speed
Dynamic radar cruise
control with full-speed
range
In vehicle-to-vehicle dis-
tance control mode, the
vehicle automatically accel-
erates, decelerates and
stops to match the speed
changes of the preceding
vehicle even if the accelera-
tor pedal is not depressed.
In constant speed control
mode, the vehicle runs at a
fixed speed.
Use the dynamic radar
cruise control with
full-speed range on free-
ways and highways.
 Vehicle-to-vehicle distance
control mode ( P.266)
 Constant speed control
mode ( P.271)
System Components

2644-5. Using the driving support systems
Indicators
■Operation switchesVehicle-to-vehicle distance
switch
“+RES” switch
Cruise control main switch
Cancel switch
“-SET” switch
WARNING
■Before using dynamic radar
cruise control with full-speed
range
●Driving safely is the sole
responsibility of the driver. Do
not rely solely o n the system,
and drive safely by always pay-
ing careful attention to your sur-
roundings.
●The dynamic radar cruise con-
trol with full-speed range pro-
vides driving assistance to
reduce the driver’s burden.
However, there are limitations to
the assistance provided.
Read the following conditions
carefully. Do not overly rely on
this system and always drive
carefully.
• When the sensor may not be correctly detect ing the vehicle
ahead:
P.273
• Conditions under which the vehicle-to-vehicle distance con-
trol mode may not function cor-
rectly:
P. 2 7 4
●Set the speed appropriately
depending on the speed limit,
traffic flow, road conditions,
weather conditions, etc. The
driver is responsible for check-
ing the set speed.
●Even when the system is func-
tioning normally, the condition of
the preceding vehicle as
detected by the system may dif-
fer from the condition observed
by the driver. Therefore, the
driver must always remain alert,
assess the danger of each situ-
ation and drive safely. Relying
solely on this system or assum-
ing the system ensures safety
while driving can lead to an
accident, resulting in death or
serious injury.
●Switch the dynamic radar cruise
control with full-speed range
setting to off, using the cruise
control main switch when not in
use.
■Cautions regarding the driv-
ing assist systems
Observe the following precau-
tions, as there ar e limitations to
the assistance provided by the
system. Failure to do so may
cause an accident resulting in
death or serious injury.

2654-5. Using the driving support systems
4
Driving
WARNING
●Assisting the driver to measure
following distance
The dynamic radar cruise control
with full-speed range is only
intended to help the driver in
determining the following distance
between the driver’s own vehicle
and a designated vehicle traveling
ahead. It is not a mechanism that
allows careless or inattentive driv-
ing, and it is not a system that can
assist the driver in low-visibility
conditions.
It is still necessary for driver to
pay close attention to the vehi-
cle’s surroundings.
●Assisting the driver to judge
proper following distance
The dynamic radar cruise control
with full-speed range determines
whether the follo wing distance
between the driver’s own vehicle
and a designated vehicle traveling
ahead is within a set range. It is
not capable of making any other
type of judgement. Therefore, it is
absolutely necessary for the
driver to remain vigilant and to
determine whether or not there is
a possibility of danger in any
given situation.
●Assisting the driver to operate
the vehicle
The dynamic radar cruise control
with full-speed range does not
include function s which will pre-
vent or avoid collisions with vehi-
cles ahead of your vehicle.
Therefore, if there is ever any
possibility of da nger, the driver
must take immediate and direct
control of the vehicle and act
appropriately in order to ensure
the safety of all involved.
■Situations unsuitable for
dynamic radar cruise control
with full-speed range
Do not use dynamic radar cruise
control with full-speed range in
any of the following situations.
Doing so may result in inappropri-
ate speed control and could
cause an accident resulting in
death or serious injury.
●Roads where there are pedes-
trians, cyclists, etc.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as
those covered with rain, ice or
snow
●On steep downhills, or where
there are sudden changes
between sharp up and down
gradients
Vehicle speed may exceed the
set speed when d riving down a
steep hill.
●At entrances to freeways and
highways
●When weather conditions are
bad enough that they may pre-
vent the sensors from detecting
correctly (fog, snow, sand-
storm, heavy rain, etc.)
●When there is rain, snow, etc.
on the front surface of the radar
or front camera
●In traffic conditions that require
frequent repeated acceleration
and deceleration
●When your vehicle is towing a
trailer or during emergency tow-
ing
●When an approach warning
buzzer is heard often

2664-5. Using the driving support systems
This mode employs a radar to detect the presence of vehicles up to
approximately 328 ft. (100 m) ahead, determines the current vehi-
cle-to-vehicle following distance, and operates to maintain a s uitable
following distance from the vehicle ahead. The desired vehi-
cle-to-vehicle distance can also be set by operating the vehi-
cle-to-vehicle distance switch.
When driving on downhill slopes, t he vehicle-to-vehicle distance may
become shorter.
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver.
Example of deceleration crui sing and follow-up cruising
When a preceding vehicle driving slower than the set speed
appears
When a vehicle is detected runni ng ahead of you, the system automatically
decelerates your vehicle. When a greater reduction in vehicle s peed is nec-
essary, the system applies the brakes (the stop lights will come on at this
time). The system will respond to changes in the speed of the vehicle
ahead in order to maintain the vehicle-to-vehicle distance set by the driver.
Approach warning warns you when the system cannot decelerate suffi-
ciently to prevent your vehicle from closing in on the vehicle ahead.
When the vehicle ahead of you st ops, your vehicle will also stop (vehicle is
stopped by system control). Afte r the vehicle ahead starts off, pressing the
“+RES” switch or depressing the accelerator pedal (start-off operation) will
resume follow-up cruising. If the start-off operation is not pe rformed, system
control continues to keep your vehicle stopped.
Driving in vehicle-to-vehicle distance control mode

2674-5. Using the driving support systems
4
Driving
When the turn signal lever is operated and your vehicle moves to an over-
taking lane while driving at 50 mph (80 km/h) or more, the vehi cle will accel-
erate to help to overt ake a passing vehicle.
The system’s identification of what is an overtaking lane may be determined
solely based on the location of the steering wheel in the vehicle (left side
driver position versus right side driver position.) If the vehi cle is driven to a
region where the overtaking lane is on a different side from wh ere the vehi-
cle is normally driven, the vehicle may accelerate when the tur n signal lever
is operated in the opposite direction to the overtaking lane (e .g., if the driver
normally operates the vehicle in a region where the overtaking lane is to the
right but then drives to a region where the overtaking lane is to the left, the
vehicle may accelerate when the right turn signal is activated).
Example of acceleration
When there are no longer any preceding vehicles driving slower
than the set speed
The system accelerates until the set speed is reached. The system then
returns to constan t speed cruising.
1Press the cruise control main
switch to activate the cruise
control.
Dynamic radar cruise control indi-
cator will come on and a message
will be displayed on the multi-infor-
mation display. Press the switch
again to deactivate the cruise con-
trol.
If the cruise cont rol main switch is
pressed and held for 1.5 seconds
or more, the syste m turns on in
constant speed control mode. (
 P.271)
2 Accelerate or decelerate,
with accelerator pedal opera-
tion, to the desired vehicle
speed (at or above approxi-
mately 20 mph [30 km/h])
and press the “-SET” switch
to set the speed.
Cruise control “SET” indicator will
come on.
The vehicle speed at the moment
the switch is released becomes the
Setting the vehicle speed
(vehicle-to-vehicle dis-
tance control mode)

2684-5. Using the driving support systems
set speed.
Adjusting the set speed by the
switch
To change the set speed, press
the “+RES” or “-SET” switch
until the desired set speed is
displayed.
1 Increases the speed (Except
when the vehicle has been
stopped by system control in
vehicle-to-vehicle distance
control mode)
2 Decreases the speed
Fine adjustment: Press the switch.
Large adjustment: Press and hold
the switch to change the speed,
and release when the desired
speed is reached.
In the vehicle-to-vehicle dis-
tance control mode, the set speed will be increased or
decreased as follows:
For the U.S. mainland and
Hawaii
Fine adjustment: By 1 mph (1.6
km/h)
*1 or 1 km/h (0.6 mph)*2 each
time the switch is pressed
Large adjustment: Increases or
decreases in 1 mph (1.6 km/h)
*1 or
1 km/h (0.6 mph)
*2 increments for
as long as the switch is held
For Canada and Puerto Rico
Fine adjustment: By 1 mph (1.6
km/h)
*1 or 1 km/h (0.6 mph)*2 each
time the switch is pressed
Large adjustment: Increases or
decreases in 5 mph (8 km/h)
*1 or 5
km/h (3.1 mph)
*2 increments for as
long as the switch is held
In the constant speed control
mode ( P.271), the set speed
will be increased or decreased
as follows:
Fine adjustment: By 1 mph (1.6
km/h)
*1 or 1 km/h (0.6 mph)*2 each
time the switch is pressed
Large adjustmen t: The speed will
continue to change while the switch
is held.
*1: When the set speed is shown in “MPH”
*2: When the set speed is shown in “km/h”
 Increasing the set speed by
the accelerator pedal
1 Accelerate with accelerator
pedal operation to the
desired vehicle speed
Adjusting the set speed

2694-5. Using the driving support systems
4
Driving
2Press the “-SET” switch
Pressing the switch changes the
vehicle-to-vehicle distance as
follows:
1 Long
2 Medium
3 Short
If a vehicle is running ahead of you,
the preceding vehicle mark will
also be displayed.
Select a distance from the table
below. Note that the distances
shown correspond to a vehicle
speed of 50 mph (80 km/h).
Vehicle-to-vehicle distance
increases/decreases in accor-
dance with vehicle speed. When
the vehicle is stopped by system
control, the vehicle stops at a certain vehicle-to-vehicle dis-
tance depending on the situa-
tion.
After the vehicle ahead of you
starts off, press the “+RES”
switch.
Your vehicle will also resume
follow-up cruising if the acceler-
ator pedal is depressed after the
vehicle ahead of you starts off.
Changing the vehi-
cle-to-vehicle distance
(vehicle-to-vehicle dis-
tance control mode)
Vehicle-to-vehicle dis-
tance settings (vehi-
cle-to-vehicle distance
control mode)
Distance
optionsVehicle-to-vehicle dis- tance
LongApproximately 160 ft. (50 m)
MediumApproximately 130 ft. (40 m)
ShortApproximately 100 ft. (30 m)
Resuming follow-up
cruising when the vehicle
has been stopped by sys-
tem control (vehi-
cle-to-vehicle distance
control mode)

2704-5. Using the driving support systems
1Pressing the cancel switch
cancels the speed control.
The speed control is also canceled
when the brake pedal is depressed.
(When the vehicle has been
stopped by system control,
depressing the brake pedal does
not cancel the setting.)
2Pressing the “+RES” switch
resumes the cruise control
and returns vehicle speed to
the set speed.
When your vehicle is too close
to a vehicle ahead, and suffi-
cient automatic deceleration via
the cruise control is not possi-
ble, 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 following a
vehicle. Depress the brake
pedal to ensure an appropriate
vehicle-to-vehicle distance.
■Warnings may not occur
when
In the following instances, warn-
ings may not occur even when
the vehicle-to-vehicle distance is
small.
 When the speed of the pre-
ceding vehicle matches or
exceeds your vehicle speed
 When the preceding vehicle is
traveling at an extremely slow
speed
 Immediately after the cruise
control speed was set
 When depressing the acceler-
ator pedal
While driving in vehicle-to-vehi-
cle distance control mode, this
function will reduce the vehicle
speed, if it is determined to be
necessary.
■Function operation
When the steering wheel begins
to be turned, the vehicle speed
will begin being reduced. When
Canceling and resuming
the speed control
Approach warning (vehi-
cle-to-vehicle distance
control mode)
Curve speed reduction
function