Toyota Land Cruiser Prado (2023 year). Manual in english - page 26

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4-5. Using the driving support systems

Driving assist systems

◆

ABS (Anti-lock Brake System)

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

◆

Multi Terrain ABS (Anti-lock Brake System) (if equipped)



Refer to the “Off-road driving Owner’s manual”

◆

Brake assist

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

◆

VSC (Vehicle Stability Control)

Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces

◆

TRC (Traction Control) for 2TR-FE engines and H4 position on
1GR-FE and 1GD-FTV engines

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

◆

Active TRC (Traction Control) for L4 position on 1GR-FE and
1GD-FTV engines



Refer to the “Off-road driving Owner’s manual”

To keep driving safety and performance, the following systems
operate automatically in response to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heavily when operating the vehi-
cle.

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4-5. Using the driving support systems

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◆

Hill-start assist control



Refer to the “Off-road driving Owner’s manual”

◆

KDSS (Kinetic Dynamic Suspension System) (if equipped)



Refer to the “Off-road driving Owner’s manual”

◆

AVS (Adaptive Variable Suspension system) (if equipped)

Controls the suspension according to the road surface and driving
conditions, enhancing riding comfort and good driving stability.

◆

Emergency brake signal

When the brakes are applied suddenly, the emergency flashers
automatically flash to alert the vehicle behind.

◆

Trailer Sway Control (if equipped)

Helps the driver to control trailer sway by selectively applying brake
pressure for individual wheels and reducing driving torque when
trailer sway is detected.
Trailer Sway Control is part of the VSC system and will not operate
if VSC turned off or experiences a malfunction.

: The function only works in vehicles with Multi-terrain Select when Multi ter-

rain Select is switched on

The slip indicator light will flash
while the TRC/VSC/Trailer Sway
Control systems are operating.

When the TRC/VSC/Trailer Sway Control systems are operating

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4-5. Using the driving support systems

If the vehicle gets stuck in mud, dirt or snow, the TRC system may

reduce power from the engine to the wheels. Pressing

to turn the system off may make it easier for you to rock the vehicle in
order to free it.

■

Turning off TRC system only

■

Turning off TRC, VSC and Trailer Sway Control systems

To turn the TRC, VSC and Trailer Sway Control systems off, press and hold

for more than 3 seconds while the vehicle is stopped.

The “TRC OFF” indicator light and the VSC OFF indicator light will come on.

Press

again to turn the systems back on.

: On vehicles with pre-collision system, pre-collision brake assist and pre-

collision braking will also be disabled. The PCS warning light will come on
and the message will be shown on the multi-information display. (



P. 352)

■

When the “TRC OFF” indicator light comes on even if

has

not been pressed

TRC is temporary deactivated. If the indicator light continues to remain on,
contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.

■

Sounds and vibrations caused by the ABS, brake assist, VSC, Trailer
Sway Control, TRC and hill-start assist control systems

●

A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the engine 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 systems 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.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.

Disabling the TRC system

To turn the TRC system off, quickly press

and release

The “TRC OFF” indicator light will come
on.
Press

again to turn the

system back on.

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4-5. Using the driving support systems

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■

Automatic reactivation of TRC, Trailer Sway Control and VSC systems

After turning the TRC, Trailer Sway Control and VSC systems off, the sys-
tems will be automatically re-enabled in the following situations.

●

When the engine switch is turned off

●

If only the TRC system is Turned off, the TRC will turn on when vehicle
speed increases

If both the TRC and VSC systems are turned off, automatic re-enabling will
not occur when vehicle speed increases.

■

Operating conditions of emergency brake signal

When the following three conditions are met, the emergency brake signal will
operate:

●

The emergency flashers are off.

●

Actual vehicle speed is over 55 km/h (35 mph).

●

The brake pedal is depressed in a manner that cause the system to judge
from the vehicle deceleration that this is a sudden braking operation.

■

Automatic system cancelation of emergency brake signal

The emergency brake signal will turn off in any of the following situations:

●

The emergency flashers are turned on.

●

The brake pedal is released.

●

The system judges from the vehicle deceleration that is not a sudden brak-
ing operation.

■

When the brake system operates continuously

The brake actuator may overheat. In this case, the TRC (vehicles other than
2TR-FE engines) will stop operating, a buzzer will sound and the “TRC OFF”
indicator will come on. Refrain from using the system until the “TRC OFF”
indicator turns off. (There is no problem with continuing normal driving.)

■

KDSS (if equipped)

Some difference of vehicle height between left and right side can appear. This
does not indicate a malfunction in the KDSS system. For more information,
contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.

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4-5. Using the driving support systems

WARNING

■

The ABS does not operate effectively when

●

The limits of tire gripping performance 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 road.

■

Stopping distance when the ABS is operating may exceed that of nor-
mal conditions

The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a safe distance from the vehicle in front of you, especially in the
following situations:

●

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 roads with uneven surfaces

■

TRC/VSC may not operate effectively when

Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRC/VSC system is operating.
Drive the vehicle carefully in conditions where stability and power may be
lost.

■

When the TRC/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 TRC/VSC/Trailer Sway Control systems are turned off

Be especially careful and drive at a speed appropriate to the road condi-
tions. As these are the systems to help ensure vehicle stability and driving
force, do not turn the TRC/VSC/Trailer Sway Control systems off unless
necessary.
Trailer Sway Control is part of the VSC system and will not operate if VSC is
turned off or experiences a malfunction.

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4-5. Using the driving support systems

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WARNING

■

Replacing tires

Make sure that all tires are of the specified size, brand, tread pattern and
total load capacity. In addition, make sure that the tires are inflated to the
recommended tire inflation pressure level.
The ABS, TRC, Trailer Sway Control and VSC systems will not function cor-
rectly if different tires are installed on the vehicle.
Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer for further information when replacing tires or wheels.

■

Handling of tires and the suspension

Using tires with any kind of problem or modifying the suspension will affect
the driving assist systems, and may cause the system to malfunction.

■

Trailer Sway Control precaution

The Trailer Sway Control system is not able to reduce trailer sway in all sit-
uations. Depending on many factors such as the conditions of the vehicle,
trailer, road surface, and driving environment, the Trailer Sway Control sys-
tem may not be effective. Refer to your trailer owner’s manual for informa-
tion on how to tow your trailer properly.

■

If trailer sway occurs

Observe the following precautions.
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 stabilize. (



P. 261)

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4-5. Using the driving support systems

BSM (Blind Spot Monitor)



The Blind Spot Monitor is a system that has 2 functions;

●

The BSM (Blind Spot Monitor) function
Assists the driver in making the decision when changing lanes

●

The RCTA (Rear Crossing Traffic Alert) function
Assists the driver when backing up

These functions use same sensors.



: If equipped

Summary of the Blind Spot Monitor

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4-5. Using the driving support systems

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Multi-information display

Turning the Blind Spot Monitor on/off.

Outside rear view mirror indicator

BSM function:
When a vehicle is detected in the blind spot, the outside rear view mirror
indicator comes on while the turn signal lever is not operated. If the turn
signal lever is operated toward the detected side, the outside rear view
mirror indicator flashes.
RCTA function:
When a vehicle approaching from the right or left rear of the vehicle is
detected, the outside rear view mirror indicators flash.

“BSM” indicator

When the BSM function is turned on, the indicator illuminates

Monitor screen display (RCTA function only)

If a vehicle approaching from the right or left at the rear of the vehicle is
detected, the RCTA icon (



P. 430) for the detected side will be displayed

on the monitor screen. This illustration shows an example of a vehicle
approaching from the right at the rear of the vehicle.

RCTA buzzer (RCTA function only)

If a vehicle approaching from the right or left at the rear of the vehicle is
detected, a buzzer will sound. The buzzer also sounds for approximately 1
second immediately after the BSM function is operated to turn the system
on.

The BSM function and RCTA function can be enabled/disabled on the

screen (



P. 145) of the multi-information display.

Once the systems are disabled, the systems will not be enabled until they
are enabled by the

screen of multi-information display again. (The sys-

tems are not automatically enabled even when the engine is restarted.)

Turning the BSM function on/off

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4-5. Using the driving support systems

■

The outside rear view mirror indicators visibility

When under strong sunlight, the outside rear view mirror indicator may be dif-
ficult to see.

■

RCTA buzzer hearing

RCTA buzzer may be difficult to hear over loud noises such as high audio vol-
ume.

■

When “BSM not available” is shown on the multi-information display

The sensor voltage has become abnormal, water, snow, mud, etc., may be built
up in the vicinity of the sensor area of bumper (



P. 425). Removing the water,

snow, mud, etc., from the vicinity of the sensor area bumper should return it to
normal. Also, the sensor may not function normally when used in extremely hot
or cold weather.

■

When “Check BSM system” is shown on the multi-information display

There may be a sensor malfunction or misaligned. Have the vehicle
inspected at any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer.

■

Customization

Some functions can be customized. (Customizable features:



P. 769)

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4-5. Using the driving support systems

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WARNING

■

To ensure the system can operate properly

●

Keep the sensor and its surrounding area on the bumper clean at all times.

●

Do not subject a sensor or its surrounding area on the rear bumper to a
strong impact.
If a sensor is moved even slightly off position, the system may malfunction
and vehicles may not be detected correctly.
In the following situations, have your vehicle inspected by any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
• A sensor or its surrounding area is subject to a strong impact.
• If the surrounding area of a sensor is scratched or dented, or part of

them has become disconnected.

●

Do not disassemble the sensor.

●

Do not attach accessories or stickers to the sensor or surrounding area on
the bumper.

●

Do not modify the sensor or surrounding area on the bumper.

●

Do not paint the rear bumper any color other than an official Toyota color.

One Blind Spot Monitor sensor is
installed inside the left and right side of
the vehicle rear bumper respectively.
Observe the following to ensure the Blind
Spot Monitor can function correctly.

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4-5. Using the driving support systems

The Blind Spot Monitor function uses radar sensors to detect vehicles
that are traveling in an adjacent lane in the area that is not reflected in
the outside rear view mirror (the blind spot), and advises the driver of
the vehicles existence via the outside rear view mirror indicator.

The areas that vehicles can be detected in are outlined below.
The range of the detection area extends to:

Approximately 3.5 m (11.5 ft.)
from the side of the vehicle

The first 0.5 m (1.6 ft.) from the
side of the vehicle is not in the
detection area

Approximately 3 m (9.8 ft.) from
the rear bumper
Approximately 1 m (3.3 ft.) for-
ward of the rear bumper

BSM function

BSM function detection areas

WARNING

■

Cautions regarding the use of the system

The driver is solely responsible for safe driving. Always drive safely, taking
care to observe your surroundings.
The BSM function is a supplementary function which alerts the driver that a
vehicle is present in the blind spot. Do not overly rely on the BSM function.
The function cannot judge if it is safe to change lanes, therefore over reli-
ance could cause an accident resulting in death or serious injury.
According to conditions, the system may not function correctly. Therefore
the driver’s own visual confirmation of safety is necessary.

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4-5. Using the driving support systems

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■

The BSM function is operational when

●

The BSM function is set to on (



P. 145)

●

Vehicle speed is greater than approximately 10 km/h (7 mph).

■

The BSM function will detect a vehicle when

●

A vehicle in an adjacent lane overtakes your vehicle.

●

You overtake a vehicle in adjacent lane slowly.

●

Another vehicle enters the detection area when it changes lanes.

■

Conditions under which the system will not detect a vehicle

The BSM function is not designed to detect the following types of vehicles
and/or objects:

●

Small motorcycles, bicycles, pedestrians etc.

●

Vehicles traveling in the opposite direction

●

Guardrails, walls, signs, parked vehicles and similar stationary objects

●

Following vehicles that are in the same lane

●

Vehicles driving 2 lanes across from your vehicle

●

Vehicles which are being overtaken rapidly by your vehicle

: Depending on conditions, detection of a vehicle and/or object may occur.

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4-5. Using the driving support systems

■

Conditions under which the system may not function correctly

●

The BSM function may not detect vehicles correctly in the following situa-
tions:
• When the sensor is misaligned due to a strong impact to the sensor or its

surrounding area

• When mud, snow, ice, a sticker, etc. is covering the sensor or surround-

ing area on the rear bumper

• When driving on a road surface that is wet with standing water during bad

weather, such as heavy rain, snow, or fog

• When multiple vehicles are approaching with only a small gap between

each vehicle

• When the distance between your vehicle and a following vehicle is short
• When there is a significant difference in speed between your vehicle and

the vehicle that enters the detection area

• When the difference in speed between your vehicle and another vehicle

is changing

• When a vehicle enters a detection area traveling at about the same

speed as your vehicle

• As your vehicle starts from a stop, a vehicle remains in the detection area
• When driving up and down consecutive steep inclines, such as hills, dips

in the road, etc.

• When driving on roads with sharp bends, consecutive curves, or uneven

surfaces

• When vehicle lanes are wide, or when driving on the edge of a lane, and

the vehicle in an adjacent lane is far away from your vehicle

• When a bicycle carrier or other accessory is installed to the rear of the

vehicle

• When there is a significant difference in height between your vehicle and

the vehicle that enters the detection area

• Immediately after the BSM function is turned on

●

Instances of the BSM function unnecessarily detecting a vehicle and/or
object may increase in the following situations:
• When the sensor is misaligned due to a strong impact to the sensor or its

surrounding area

• When the distance between your vehicle and a guardrail, wall, etc. that

enters the detection area is short

• When driving up and down consecutive steep inclines, such as hills, dips

in the road, etc.

• When vehicle lanes are narrow, or when driving on the edge of a lane,

and a vehicle traveling in a lane other than the adjacent lanes enters the
detection area

• When driving on roads with sharp bends, consecutive curves, or uneven

surfaces

• When the tires are slipping or spinning
• When the distance between your vehicle and a following vehicle is short
• When a bicycle carrier or other accessory is installed to the rear of the

vehicle

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4-5. Using the driving support systems

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The Rear Crossing Traffic Alert functions when your vehicle is in
reverse. It can detect other vehicles approaching from the right or left
rear of the vehicle. It uses radar sensors to alert the driver of the other
vehicle’s existence through flashing the outside rear view mirror indi-
cators and sounding a buzzer.

RCTA function

Approaching vehicles

Detection areas

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4-5. Using the driving support systems

■

RCTA icon display

When a vehicle approaching from the right or left at the rear of the
vehicle is detected, the following will be displayed on the monitor
screen

Display

Content

A vehicle is approaching from the left at the rear of
the vehicle

A vehicle is approaching from the right at the rear of
the vehicle

Vehicles are approaching from both sides of the
vehicle

The RCTA function is malfunctioning (



P. 424)

WARNING

■

Cautions regarding the use of the system

There is a limit to the degree of recognition 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 surround-
ings and driving safely. (



P. 426)

■

To ensure the system can operate properly



P. 425

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4-5. Using the driving support systems

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The areas that vehicles can be detected in are outlined below.

To give the driver a more consistent time to react, the buzzer can alert
for faster vehicles from farther away.
Example:

■

The RCTA function is operational when

●

The BSM function is set to on. (



P. 145)

●

The shift position is in R.

●

Vehicle speed is less than approximately 15 km/h (9 mph).

●

Approaching vehicle speed is between approximately 8 km/h (5 mph) and
56 km/h (34 mph).

RCTA function detection areas

Approaching vehicle

Speed

Approximate
alert distance

Fast

56 km/h (34 mph)

40 m (131 ft.)

Slow

8 km/h (5 mph)

5.5 m (18 ft.)

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