Toyota Highlander Hybrid (2023 year). Manual in english

302

4-5. Using the driving support systems



Figure 3 When brake control operates

Hybrid system output
Braking force
Time
Hybrid system output restriction control begins operating
System determines that possibility of collision with detected
object is high
Hybrid system output reduced
System determines that possibility of collision with detected
object is extremely high
Brake control begins operating
Brake control strength increased
Example: Multi-information display: “BRAKE!”
Example: Multi-information display: “Switch to Brake”

■

If the Parking Support Brake

has operated

If the vehicle is stopped due to oper-

ation of the Parking Support Brake,

the Parking Support Brake will be

disabled and the PKSB OFF indica-

tor will illuminate. If the Parking Sup-

port Brake operates unnecessarily,

brake control can be canceled by

depressing the brake pedal or wait-

ing for approximately 2 seconds for

it to automatically be canceled.

Then, the vehicle can be operated

by depressing the accelerator pedal.

■

Re-enabling the Parking Sup-

port Brake

To re-enable the Parking Support

Brake when it has been disabled

due to system operation perform

any of the following operations.
At this time, the PKSB OFF indicator

will turn off. (



P.84)

●

Turn the PKSB (Parking Support

303

4-5. Using the driving support systems

ing

Brake) on (



P.299)

●

The shift lever is in P.

●

Drive with no operation targets in

the traveling direction of the vehi-

cle

●

Change the traveling direction of

the vehicle

■

If “PKSB Unavailable” is dis-

played on the multi-information

display and the PKSB OFF indi-

cator is flashing

●

If this message is displayed only

when the shift lever is in any posi-

tion other than R, a sensor on the

front or rear bumper may be dirty.

Clean the sensors and their sur-

rounding area on the bumpers.

■

If “PKSB Unavailable” and

“Parking Support Brake

Unavailable Remove the Dirt of

Rear Camera” is displayed on

the multi-information display

and the PKSB OFF indicator is

flashing

●

A sensor may be covered with ice,

snow, dirt, etc. Remove the ice,

snow, dirt, etc., from the sensor to

return the system to normal.

If this message is shown even

after removing dirt from the sen-

sor, or shown when the sensor

was not dirty to begin with, have

the vehicle inspected by your Toy-

ota dealer.

●

A sensor may be frozen. Once the

ice melts, the system will return to

normal.

●

Water may be continuously flow-

ing over the sensor surface, such

as in a heavy rain. When the sys-

tem determines that it is normal,

the system will return to normal.

■

If a 12-volt battery terminal has

been disconnected and recon-

nected

The system needs to be initialized.

To initialize the system, drive the

vehicle straight ahead for 5 seconds

or more at a speed of approximately

22 mph (35 km/h) or more.

306

4-5. Using the driving support systems

■

The Parking Support Brake

function (static object) will

operate when

The function will operate when the

PKSB OFF indicator is not illumi-

nated or flashing (



P.83, 84) and all

of the following conditions are met:

●

Hybrid system output restriction

control

• The Parking Support Brake is

enabled.

• The vehicle speed is approxi-

mately 9 mph (15 km/h) or less.

• There is a static object in the trav-

eling direction of the vehicle and

approximately 6 to 13 ft. (2 to 4 m)

away.

• The Parking Support Brake deter-

mines that a stronger-than-nor-

mal brake operation is necessary

to avoid a collision.

●

Brake control

• Hybrid system output restriction

control is operating.

• The Parking Support Brake deter-

mines that an immediate brake

operation is necessary to avoid a

collision.

■

The Parking Support Brake

function (static objects) will

stop operating when

The function will stop operating if

any of the following conditions are

met:

●

Hybrid system output restriction

control

• The Parking Support Brake is dis-

abled.

• The system determines that the

collision has become avoidable

with normal brake operation.

• The static object is no longer

approximately 6 to 13 ft. (2 to 4 m)

away from the vehicle or in the

traveling direction of the vehicle.

●

Brake control

• The Parking Support Brake is dis-

abled.

• Approximately 2 seconds have

elapsed since the vehicle was

stopped by brake control.

• The brake pedal is depressed

after the vehicle is stopped by

brake control.

• The static object is no longer

approximately 6 to 13 ft. (2 to 4 m)

away from the vehicle or in the

traveling direction of the vehicle.

■

Detection range of the Parking

Support Brake function (static

objects)

The detection range of the Parking

Support Brake function (static

objects) differs from the detection

range of the intuitive parking assist.

(



P.288) Therefore, even if the intu-

itive parking assist detects an object

and provides a warning, the Parking

Support Brake function (static

objects) may not start operating.

■

Situations in which the system

may not operate properly



P.286

■

Situations in which the system

may operate even if there is no

possibility of a collision



P.287

WARNING

■

If the Parking Support Brake

function (static objects) oper-

ates unnecessarily, such as

at a railroad crossing



P.302

■

Notes when washing the vehi-

cle



P.285

307

4-5. Using the driving support systems

ing

: If equipped

This function will operate in situ-
ation such as the following if a
vehicle is detected in the travel-
ing direction of the vehicle.

■

When reversing, a vehicle is
approaching and the brake
pedal is not depressed, or
is depressed late



P.279

■

The Parking Support Brake

function (rear-crossing vehi-

cles) will operate when

The function will operate when the

PKSB OFF indicator is not illumi-

nated or flashing (



P.83, 84) and all

of the following conditions are met:

●

Hybrid system output restriction

control

• The Parking Support Brake is

enabled.

• The vehicle speed is approxi-

mately 9 mph (15 km/h) or less.

• Vehicles which are approaching

from the right or left at the rear of

the vehicle at a traveling speed of

approximately 5 mph (8 km/h) or

more.

• The shift lever is in R.

• The Parking Support Brake deter-

mines that a stronger than normal

brake operation is necessary to

avoid a collision with an approach-

ing vehicle.

●

Brake control

• Hybrid system output restriction

control is operating.

• The Parking Support Brake deter-

mines that an emergency brake

operation is necessary to avoid a

collision with an approaching vehi-

cle.

Parking Support Brake function (rear-crossing

vehicles)

If a rear radar sensor detects a vehicle approaching from the
right or left at the rear of the vehicle and the system deter-
mines that the possibility of a collision is high, this function
will perform brake control to reduce the likelihood of an
impact with the approaching vehicle.

Example of function operation

Types of sensors

WARNING

■

To ensure the system can

operate properly



P.279

308

4-5. Using the driving support systems

■

The Parking Support Brake

function (rear-crossing vehi-

cles) will stop operating when

The function will stop operating if

any of the following conditions are

met:

●

Hybrid system output restriction

control

• The Parking Support Brake is dis-

abled.

• The collision becomes avoidable

with normal brake operation.

• A vehicle is no longer approaching

from the right or left at the rear of

the vehicle.

●

Brake control

• The Parking Support Brake is dis-

abled.

• Approximately 2 seconds have

elapsed since the vehicle was

stopped by brake control.

• The brake pedal is depressed

after the vehicle is stopped by

brake control.

• A vehicle is no longer approaching

from the right or left at the rear of

the vehicle.

■

Detection area of the Parking

Support Brake function

(rear-crossing vehicles)

The detection area of the Parking

Support Brake function (rear-cross-

ing vehicles) differs from the detec-

tion area of the RCTA function

(



P.293). Therefore, even if the

RCTA function detects a vehicle and

provides an alert, the Parking Sup-

port Brake function (rear-crossing

vehicles) may not start operating.

■

Situations in which the system

may not operate properly



P.295

■

Situations in which the system

may operate even if there is no

possibility of a collision



P.296

Multi-information display
Driving mode select switch

Operate the driving mode select
switch forward or backward to
select the desired driving mode on
the multi-information display.

Normal mode

Provides an optimal balance of fuel
economy, quietness, and dynamic
performance. Suitable for normal
driving.

Sport mode

Controls the hybrid system to pro-
vide quick, powerful acceleration.
This mode also changes the steer-
ing feel, making it suitable for when
agile driving response is desired,
such as when driving on roads with

Driving mode select

switch

The driving modes can be
selected to suit the driving
and usage conditions.

Selecting a driving mode

309

4-5. Using the driving support systems

ing

many curves.
When Sport mode is selected,
Sport mode indicator comes on.

Eco drive mode

Helps the driver accelerate in an
eco-friendly manner and improve
fuel economy through moderate
throttle characteristics and by con-
trolling the operation of the air con-
ditioning system (heating/cooling).
When Eco drive mode is selected,
Eco drive mode indicator comes
on.

■

Air conditioning system opera-

tion in Eco drive mode

In Eco drive mode, heating/cooling

operations and the fan speed is con-

trolled to improve fuel efficiency.

Perform the following procedures to

increase the air conditioning perfor-

mance.

●

Vehicle with 12.3-inch audio sys-

tem screen: Turn eco air condi-

tioning mode off (



P.333)

●

Adjust the fan speed (



P.329)

●

Cancel Eco drive mode

■

Canceling a driving mode

●

Sport mode is automatically can-

celed and the driving mode

returns to normal mode when the

power switch is off.

●

Normal mode and Eco drive mode

are not canceled until another

driving mode is selected. (Even if

the power switch is off, normal

mode and Eco drive mode will not

be automatically canceled.)

Press the Trail Mode switch

When the switch is pressed, Trail
Mode turns on and the Trail Mode
indicator illuminates on the
multi-information display.
When the switch is pressed again,
the Trail Mode indicator turns off.

Trail Mode (AWD mod-

els)

Trail Mode is a system that
performs integrated control
for the AWD, brake and
drive force control systems
to assist the drive power on
bumpy roads, etc.

WARNING

■

Before using Trail Mode

Make sure to observe the follow-

ing precautions. Failure to

observe these precautions may

result in an unexpected accident.

●

Check that the Trail Mode indi-

cator is illuminated before driv-

ing. Trail Mode will not operate

when the indicator is off.

●

Trail Mode is not intended to

expand the limits of the vehicle.

Thoroughly check the road con-

ditions and drive with caution.

●

Thoroughly check the road con-

ditions before driving. As Trail

Mode is suitable for driving on

bumpy roads, there is a chance

that Trail Mode may not be the

most appropriate in terms of

other road conditions.

Turning Trail Mode on

310

4-5. Using the driving support systems

■

Trail Mode

●

Trail Mode is intended for use

when driving on bumpy roads. Do

not turn the switch on in other situ-

ations.

●

Trail Mode controls the vehicle so

that it can use the maximum

amount of drive force when driving

on bumpy roads. As a result, fuel

efficiency may diminish when

compared to driving with Trail

Mode off.

●

If Trail Mode is continuously used

for a long period of time, the load

on related parts increases and the

system may be unable to operate

effectively.

■

When Trail Mode is canceled

In the following situations, Trail

Mode is automatically canceled

even if it is turned on.

●

When the driving mode is

changed (



P.308)

●

When the power switch is turned

off

■

During Trail Mode operation

The following types of situations

may occur, but they are not malfunc-

tions.

●

Vibrations may be felt throughout

the vehicle or steering wheel

●

Operating noise may be heard

from the engine compartment

■

When an inspection at your

Toyota dealer is necessary

In the following situations, the sys-

tem may be malfunctioning. Have

the vehicle inspected by your Toyota

dealer immediately.

●

When the slip indicator illuminates

while Trail Mode is on

●

When the Trail Mode indicator

does not illuminate even though

the Trail Mode switch is pressed

311

4-5. Using the driving support systems

ing

■

ECB (Electronically Con-
trolled Brake System)

The electronically controlled
system generates braking force
corresponding to the brake
operation

■

ABS (Anti-lock Brake Sys-
tem)

Helps to prevent wheel lock
when the brakes are applied
suddenly, or if the brakes are
applied while driving on a slip-
pery road surface

■

Brake assist

Generates an increased level of
braking force after the brake
pedal is depressed when the
system detects a panic stop sit-
uation

■

VSC (Vehicle Stability Con-
trol)

Helps the driver to control skid-
ding when swerving suddenly or
turning on slippery road sur-
faces

■

Enhanced VSC (Enhanced
Vehicle Stability Control)

Provides cooperative control of
the ABS, TRAC, VSC and EPS.
Helps to maintain directional
stability when swerving on slip-
pery road surfaces by con-
trolling steering performance.

■

Trailer Sway Control

Helps the driver to control trailer
sway by selectively applying
brake pressure for individual
wheels and reducing driving
torque when trailer sway is
detected.

■

TRAC (Traction Control)

Helps to maintain drive power
and prevent the drive wheels
from spinning when starting the
vehicle or accelerating on slip-
pery roads

■

Active Cornering Assist
(ACA)

Helps to prevent the vehicle
from drifting to the outer side by
performing inner wheel brake
control when attempting to
accelerate while turning

■

Hill-start assist control

Helps to reduce the backward
movement of the vehicle when

Driving assist systems

To keep driving safety and
performance, the following
systems operate automati-
cally in response to various
driving situations. Be
aware, however, that these
systems are supplementary
and should not be relied
upon too heavily when oper-
ating the vehicle.

Summary of the driving
assist systems

312

4-5. Using the driving support systems

starting on an uphill

■

EPS (Electric Power Steer-
ing)

Employs an electric motor to
reduce the amount of effort
needed to turn the steering
wheel

■

E-Four (Electronic
On-Demand AWD system)
(AWD models)

Automatically controls the drive
system such as to front-wheel
drive or AWD (all wheel drive)
according to various running
conditions including normal driv-
ing, during cornering, on a
uphill, when starting off, during
acceleration, on a slippery roads
due to snow or rain, thus con-
tributing to stable operability and
driving stability.

■

VDIM (Vehicle Dynamics
Integrated Management)

Provides integrated control of
the ABS, brake assist, TRAC,
VSC, hill-start assist control and
EPS systems
Helps to maintain vehicle stabil-
ity when swerving on slippery
road surfaces by controlling the
brakes, hybrid system output
and steering assist.

■

The Secondary Collision
Brake

When the SRS airbag sensor
detects a collision and the sys-
tem operates, the brakes and
brake lights are automatically

controlled to reduce the vehicle
speed and help reduce the pos-
sibility of further damage due to
a secondary collision.

■

When the

TRAC/VSC/ABS/Trailer Sway

Control systems are operating

The slip indicator light will flash

while the TRAC/VSC/ABS/Trailer

Sway Control systems are operat-

ing.

■

Disabling the TRAC system

If the vehicle gets stuck in mud, dirt

or snow, the TRAC system may

reduce power from the hybrid sys-
tem to the wheels. Pressing the

switch to turn the system off may

make it easier for you to rock the

vehicle in order to free it.
To turn the TRAC system off, quickly
press and release the

switch.

The “Traction Control Turned OFF”
will be shown on the multi-informa-
tion display.

Press the

switch again to turn

the system back on.

313

4-5. Using the driving support systems

ing

■

Turning off both TRAC, VSC

and Trailer Sway Control sys-

tems

To turn the TRAC, VSC and Trailer

Sway Control systems off, press
and hold the

switch for more

than 3 seconds while the vehicle is

stopped.
The VSC OFF indicator light will
come on and the “Traction Control
Turned OFF” will be shown on the
multi-information display.

Press the

switch again to turn

the system back on.

: On vehicles with PCS (Pre-Colli-

sion System), PCS will also be
disabled (only Pre-Collision warn-
ing is available). The PCS warning
light will come on and a message
will be displayed on the
multi-information display.
(



P.242)

■

When the message is dis-

played on the multi-information

display showing that TRAC has
been disabled even if the

switch has not been pressed

TRAC is temporary deactivated. If

the information continues to show,

contact your Toyota dealer.

■

Operating conditions of

hill-start assist control

When the following four conditions

are met, the hill-start assist control

will operate:

●

The shift lever is in a position

other than P or N (when starting

off forward/backward on an

upward incline)

●

The vehicle is stopped

●

The accelerator pedal is not

depressed

●

The parking brake is not engaged

■

Automatic system cancelation

of hill-start assist control

The hill-start assist control will turn

off in any of the following situations:

●

The shift lever is shifted to P or N

●

The accelerator pedal is

depressed

●

The parking brake is engaged

●

2 seconds at maximum elapsed

after the brake pedal is released

■

Sounds and vibrations caused

by the ABS, brake assist, VSC,

Trailer Sway Control, TRAC and

hill-start assist control systems

●

A sound may be heard from the

engine compartment when the

brake pedal is depressed repeat-

edly, when the hybrid system is

started or just after the vehicle

begins to move. This sound does

not indicate that a malfunction has

occurred in any of these systems.

●

Any of the following conditions

may occur when the above sys-

tems are operating. None of these

indicates that a malfunction has

occurred.

• Vibrations may be felt through the

vehicle body and steering.

• A motor sound may be heard also

after the vehicle comes to a stop.

■

ECB operating sound

ECB operating sound may be heard

in the following cases, but it does

not indicate that a malfunction has

occurred.

●

Operating sound heard from the

engine compartment when the

brake pedal is operated.

●

Motor sound of the brake system

heard from the front part of the

vehicle when the driver’s door is

opened.

●

Operating sound heard from the

engine compartment when one or

two minutes passed after the stop

of the hybrid system.

314

4-5. Using the driving support systems

■

Active Cornering Assist opera-

tion sounds and vibrations

When the Active Cornering Assist is

operated, operation sounds and

vibrations may be generated from

the brake system, but this is not a

malfunction.

■

Reduced effectiveness of the

EPS system

The effectiveness of the EPS sys-

tem is reduced to prevent the sys-

tem from overheating when there is

frequent steering input over an

extended period of time. The steer-

ing wheel may feel heavy as a

result. Should this occur, refrain

from excessive steering input or

stop the vehicle and turn the hybrid

system off. The EPS system should

return to normal within 10 minutes.

■

Automatic reactivation of

TRAC, Trailer Sway Control and

VSC systems

After turning the TRAC, Trailer

Sway Control and VSC systems off,

the systems will be automatically

re-enabled in the following situa-

tions:

●

When the power switch is turned

OFF

●

If only the TRAC system is turned

off, the TRAC will turn on when

vehicle speed increases

If both the TRAC and VSC sys-

tems are turned off, automatic

re-enabling will not occur when

vehicle speed increases.

■

Operating conditions of Active

Cornering Assist

The system operates when the fol-

lowing occurs.

●

TRAC/VSC can operate

●

The driver is attempting to accel-

erate while turning

●

The system detects that the vehi-

cle is drifting to the outer side

●

The brake pedal is released

■

If a message about AWD is

shown on the multi-information

display (AWD models)

Perform the following actions.

●

“AWD System Over-heated

Switching to 2WD Mode.” AWD

system is overheated. Stop the

vehicle in a safe place with the
hybrid system operating.

If the message disappears after a

while, there is no problem. If the

message remains, have the vehi-

cle inspected by your Toyota

dealer immediately.

●

“AWD System Over-heated 2WD

Mode Engaged.” AWD system

has been temporarily released

and switched to front-wheel drive

due to overheating. Stop the vehi-

cle in a safe place with the hybrid
system operating.

If the message disappears after a

while, AWD system will automati-

cally recover. If the message

remains, have the vehicle

inspected by your Toyota dealer

immediately.

●

“AWD system Malfunction 2WD

Mode Engaged Visit Your Dealer.”

A malfunction occurs in the AWD

system. Have the vehicle

inspected by your Toyota dealer

immediately.

: When stopping the vehicle, do not

stop the hybrid system until the
display message has turned off.

■

Secondary Collision Brake

operating conditions

The system operates when the SRS

airbag sensor detects a collision

while the vehicle is in motion.

However, the system does not oper-

ate when the components are dam-

aged.

315

4-5. Using the driving support systems

ing

■

Secondary Collision Brake

automatic cancellation

The system is automatically can-

celed in any of the following situa-

tions.

●

The vehicle speed drops to

approximately 0 mph (0 km/h)

●

A certain amount of time elapses

during operation

●

The accelerator pedal is

depressed a large amount

WARNING

■

The ABS does not operate

effectively when

●

The limits of tire gripping perfor-

mance have been exceeded

(such as excessively worn tires

on a snow covered road).

●

The vehicle hydroplanes while

driving at high speed on wet or

slick roads.

■

Stopping distance when the

ABS is operating may exceed

that of normal conditions

The ABS is not designed to

shorten the vehicle’s stopping dis-

tance. Always maintain a safe dis-

tance from the vehicle in front of

you, especially in the following sit-

uations:

●

When driving on dirt, gravel or

snow-covered roads

●

When driving with tire chains

●

When driving over bumps in the

road

●

When driving over roads with

potholes or uneven surfaces

■

TRAC/VSC may not operate

effectively when

Directional control and power may

not be achievable while driving on

slippery road surfaces, even if the

TRAC/VSC system is operating.

Drive the vehicle carefully in con-

ditions where stability and power

may be lost.

■

Active Cornering Assist does

not operate effectively when

●

Do not overly rely on Active

Cornering Assist. Active Corner-

ing Assist may not operate

effectively when accelerating

down slopes or driving on slip-

pery road surfaces.

●

When Active Cornering Assist

frequently operates, Active Cor-

nering Assist may temporarily

stop operating to ensure proper

operation of the brakes, TRAC

and VSC.

■

Hill-start assist control does

not operate effectively when

●

Do not overly rely on hill-start

assist control. Hill-start assist

control may not operate effec-

tively on steep inclines and

roads covered with ice.

●

Unlike the parking brake,

hill-start assist control is not

intended to hold the vehicle sta-

tionary for an extended period

of time. Do not attempt to use

hill-start assist control to hold

the vehicle on an incline, as

doing so may lead to an acci-

dent.

316

4-5. Using the driving support systems

WARNING

■

When the

TRAC/ABS/VSC/Trailer Sway

Control is activated

The slip indicator light flashes.

Always drive carefully. Reckless

driving may cause an accident.

Exercise particular care when the

indicator light flashes.

■

When the TRAC/VSC/Trailer

Sway Control systems are

turned off

●

Be especially careful and drive

at a speed appropriate to the

road conditions. As these are

the systems to help ensure

vehicle stability and driving

force, do not turn the

TRAC/VSC/Trailer Sway Con-

trol systems off unless neces-

sary.

●

Trailer Sway Control is part of

the VSC system and will not

operate if VSC is turned off or

experiences a malfunction.

■

Replacing tires

Make sure that all tires are of the

specified size, brand, tread pat-

tern and total load capacity. In

addition, make sure that the tires

are inflated to the recommended

tire inflation pressure level.
The ABS, TRAC, Trailer Sway

Control and VSC systems will not

function correctly if different tires

are installed on the vehicle.

Contact your Toyota dealer for fur-

ther information when replacing

tires or wheels.

■

Handling of tires and the sus-

pension

Using tires with any kind of prob-

lem or modifying the suspension

will affect the driving assist sys-

tems, and may cause a system to

malfunction.

■

Trailer Sway Control precau-

tion

The Trailer Sway Control system

is not able to reduce trailer sway

in all situations. Depending on

many factors such as the condi-

tions of the vehicle, trailer, road

surface and driving environment,

the Trailer Sway Control system

may not be effective. Refer to

your trailer owner’s manual for

information on how to tow your

trailer properly.

■

If trailer sway occurs

Observe the following precau-

tions.

Failing to do so may cause death

or serious injury.

●

Firmly grip the steering wheel.

Steer straight ahead. Do not try

to control trailer sway by turning

the steering wheel.

●

Begin releasing the accelerator

pedal immediately but very

gradually to reduce speed.

Do not increase speed. Do not

apply vehicle brakes.

If you make no extreme correction

with the steering or brakes, your

vehicle and trailer should stabi-

lize. (



P.196)

Toyota Highlander Hybrid (2023 year). Manual in english - page 19