Toyota Land Cruiser Prado (2023 year). Manual in english - page 24

384

4-5. Using the driving support systems

■

Automatic cancelation of constant speed control mode

Constant speed control mode is automatically canceled in the following situa-
tions:

●

Actual vehicle speed is more than approximately 16 km/h (10 mph) below
the set vehicle speed.

●

Actual vehicle speed falls below approximately 30 km/h (20 mph).

●

VSC is activated.

●

TRC/Active TRC is activated for a period of time.

●

When the VSC or TRC/Active TRC system is turned off.

●

When the brake control or output restriction control of a driving support sys-
tem operates. 
(For example: Pre-Collision System, Drive-Start Control)

●

Vehicles with center differential lock/unlock switch: The center differential
lock/unlock is not completed within 5 seconds while the cruise control sys-
tem is on.

If constant speed control mode is automatically canceled for any reasons
other than the above, there may be a malfunction in the system. Contact any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.

■

The Dynamic Radar Cruise Control with Road Sign Assist may not oper-
ate properly when

As the Dynamic Radar Cruise Control with Road Sign Assist may not oper-
ate properly in conditions in which RSA may not operate or detect correctly
(



P. 368), when using this function, make sure to check the speed limit

sign displayed.
In the following situations, the set speed may not be changed to the recog-
nized speed limit by pushing the lever up or down.

●

If speed limit information is not available

●

When the recognized speed limit is the same as the set speed

●

When the recognized speed limit is outside of the speed range that the
dynamic radar cruise control system can operate

■

Brake operation

A brake operation sound may be heard and the brake pedal response may
change, but these are not malfunctions.

■

Warning messages and buzzers for dynamic radar cruise control

Warning messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for caution while driving.
If a warning message is shown on the multi-information display, read the
message and follow the instructions. (



P. 340, 670)

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4-5. Using the driving support systems

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■

When the sensor may not be correctly detecting the vehicle ahead

In the case of the following and depending on the conditions, operate the
brake pedal when deceleration of the system is insufficient or operate the
accelerator pedal when acceleration is required.
As the sensor may not be able to correctly detect these types of vehicles, the
approach warning (



P. 380) may not be activated.

●

Vehicles that cut in suddenly

●

Vehicles traveling at low speeds

●

Vehicles that are not moving in the same lane

●

Vehicles with small rear ends (trailers with no load on board etc.)

●

Motorcycles traveling in the same lane

●

When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor

●

When your vehicle is pointing upwards
(caused by a heavy load in the luggage
compartment, etc.)

●

Preceding vehicle has an extremely high
ground clearance

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4-5. Using the driving support systems

■

Conditions under which the vehicle-to-vehicle distance control mode
may not function correctly

In the case of the following conditions, operate the brake pedal (or accelera-
tor pedal, depending on the situation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the system
may not operate properly.

●

When the vehicle ahead of you decelerates suddenly

●

When driving on a road surrounded by a structure, such as in a tunnel or on
a bridge

●

While the vehicle speed is decreasing to the set speed after the vehicle
accelerates by depressing the accelerator pedal

●

When the road curves or when the lanes
are narrow

●

When steering wheel operation or your
position in the lane is unstable

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Cruise control



Use the cruise control to maintain a set speed without depressing the
accelerator pedal.

Indicators
Cruise control switch

Press the “ON-OFF” button to
activate the cruise control.

Cruise control indicator will come
on.
Press the button again to deacti-
vate the cruise control.

Accelerate or decelerate the
vehicle to the desired speed,
and push the lever down to set
the speed.

“SET” indicator will come on.
The vehicle speed at the moment
the lever is released becomes the
set speed.



: If equipped

Summary of functions

1
2

Setting the vehicle speed

1

2

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4-5. Using the driving support systems

To change the set speed, operate the lever until the desired set speed
is obtained.

Increases the speed
Decreases the speed

Fine adjustment: Momentarily
move the lever in the desired direc-
tion.
Large adjustment: Hold the lever in
the desired direction.

The set speed will be increased or decreased as follows:



For 1GR-FE engine with manual transmission

Fine adjustment: By approximately 1.6 km/h (1 mph) each time the
lever is operated.



Except for 1GR-FE engine with manual transmission

Fine adjustment: By approximately 1 km/h (0.6 mph) each time the
lever is operated.
Large adjustment: The set speed can be increased or decreased con-
tinually until the lever is released.

Pulling the lever toward you
cancels the constant speed
control.

The speed setting is also canceled
when the brakes are applied or the
clutch pedal (manual transmission
only) is depressed.

Pushing the lever up resumes
the constant speed control.

Resuming is available when the vehicle speed is more than approximately
30 km/h (20 mph).

Adjusting the set speed

1
2

Canceling and resuming the constant speed control

1

2

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■

Cruise control can be set when

●

The shift lever is in the D or range 4 or higher of S has been selected (vehi-
cles with an automatic transmission).

●

Vehicle speed is above approximately 30 km/h (20 mph).

■

Accelerating after setting the vehicle speed

●

The vehicle can be accelerated normally. After acceleration, the set speed
resumes.

●

Even without canceling the cruise control, the set speed can be increased
by first accelerating the vehicle to the desired speed and then pushing the
lever down to set the new speed.

■

Automatic cruise control cancelation

Cruise control will stop maintaining the vehicle speed in any of the following
situations:

●

Actual vehicle speed falls more than approximately 16 km/h (10 mph) below
the preset vehicle speed.
At this time, the memorized set speed is not retained.

●

Actual vehicle speed is below approximately 30 km/h (20 mph).

●

VSC is activated.

●

TRC is activated for a period of time.

●

When the VSC or TRC system is turned off.

●

Switching operation to center differential lock mode continues for 5 seconds
or more after operating the center differential lock/unlock switch.

■

If “Cruise Control Malfunction Visit Your Dealer” is shown on the multi-
information display or the cruise control indicator light turns to yellow

Press the “ON-OFF” button once to deactivate the system, and then press
the button again to reactivate the system.
If the cruise control speed cannot be set or if the cruise control cancels imme-
diately after being activated, there may be a malfunction in the cruise control
system. Have the vehicle inspected by any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.

390

4-5. Using the driving support systems

WARNING

■

To avoid operating the cruise control by mistake

Switch the cruise control off using the “ON-OFF” button when not in use.

■

Situations unsuitable for cruise control

Do not use cruise control in any of the following situations.
Doing so may result in loss of control and could cause an accident resulting
in death or serious injury.

●

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 hills
Vehicle speed may exceed the set speed when driving down a steep hill.

●

When your vehicle is towing a trailer (with towing hitch) or during emer-
gency towing

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Stop & Start system



■

Stopping the engine

While driving with the shift lever
in D, depress the brake pedal,
and stop the vehicle.

The Stop & Start indicator will
come on.

■

Restarting the engine

Release the brake pedal.

The Stop & Start indicator will turn off.



: If equipped

The Stop & Start system stops and restarts the engine accord-
ing to the brake pedal operations and other operations when the
vehicle is stopped.

Stop & Start system operation

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4-5. Using the driving support systems

Press the Stop & Start cancel
switch to disable the Stop & Start
system.

The Stop & Start cancel indicator
will come on. 
Pressing the switch again will
enable the Stop & Start system and
the Stop & Start cancel indicator
will turn off.

■

Automatic reactivation of the Stop & Start system

Even if the Stop & Start system is disabled by the Stop & Start can-
cel switch, it will be automatically re-enabled once the engine
switch is turned off, and then the engine is started.

■

If the Stop & Start cancel switch is pressed while the vehicle is
stopped

●

When the engine is stopped by the Stop & Start system, pressing
the Stop & Start cancel switch will restart the engine.

●

With the Stop & Start system disabled, pressing the Stop & Start
cancel switch will re-enable the system but not stop the engine.
From the next time the vehicle is stopped (after Stop & Start sys-
tem has been turned on), the engine will be stopped.

If the engine is stopped by the Stop & Start system when the vehicle is
on an incline, brake force is temporarily maintained to prevent rolling
backwards until the engine is restarted and drive force is generated.
When drive force is generated, the maintained brake force is automat-
ically canceled.

●

This function operates on flat surfaces as well as steep inclines.

●

Sound may be generated by the brakes, but this is not a malfunc-
tion.

●

The brake pedal response may change and vibration may occur,
but these are not malfunctions.

Disabling the Stop & Start system

Hill-start assist control

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Operating conditions

●

The Stop & Start system is operational when all of the following conditions
are met:
• The brake pedal is being depressed firmly
• The engine is adequately warmed up.
• When the outside temperature is -5



C (23



F) or higher

• The shift lever is in D or P.
• Windshield defogger is off.
• The hood is closed.
• The driver’s seat belt is fastened.
• The driver’s door is closed.
• The accelerator pedal is not being depressed.
• Vehicles with driving mode select switches: The selected driving mode is

NORMAL or ECO mode.

●

In the following situations, the engine may not be stopped by the Stop &
Start system. This is not a malfunction of the Stop & Start system.
• The air conditioning system is being used when the ambient temperature

is high or low.

• The battery is undergoing a periodic recharge.
• The battery is not sufficiently charged, such as if the vehicle has been

parked for a long time and the battery charge has decreased, the electric
load is large, the battery fluid temperature is excessively low or the bat-
tery has deteriorated.

• The vehicle is stopped on a steep incline.
• When the steering wheel is being operated
• Due to traffic or other circumstances the vehicle is stopped repeatedly.
• The vehicle is being driven in a high altitude area.
• Engine coolant temperature or transmission fluid temperature is

extremely low or high.

• The battery fluid temperature is extremely low or high.
• For a while after the battery terminals have been disconnected and

reconnected.

• For a while after the battery has been replaced.
• Vehicles with the rear height control air suspension: When the rear height

control air suspension is adjusting the vehicle’s height.

*

*

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

394

4-5. Using the driving support systems

●

In the following situations, the engine will restart automatically if the engine
is stopped by the Stop & Start system. (To enable stopping the engine by
Stop & Start system, drive the vehicle.)
• The air conditioning system is turned on.
• Windshield defogger is turned on. (



P. 501, 510)

• The steering wheel is operated.
• The shift lever is in a position other than D or P.
• The driver’s seat belt is unfastened.
• The driver’s door is opened.
• The accelerator pedal is depressed.
• The Stop & Start cancel switch is pressed.
• Vehicles with driving mode select switches: The driving mode is changed

from NORMAL or ECO mode to another mode.

• The vehicle starts to roll on an incline.
• Vehicles with the rear height control air suspension: When the rear height

control air suspension is adjusting the vehicle’s height.

*

*

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

●

In the following situations, the engine may restart automatically if the engine
is stopped by the Stop & Start system. (To enable stopping the engine by
Stop & Start system, drive the vehicle.)
• The brake pedal is pumped or strongly depressed.
• The air conditioning system is being used.
• The battery is not sufficiently charged.

■

Hood

●

If the hood is opened while the engine is stopped by the Stop & Start system
the engine will stall and will not be able to be restarted by the automatic
engine start function.
In this case, restart the engine using the normal engine starting procedure.
(



P. 270)

●

Even if the hood is closed after the engine is started with the hood open, the
Stop & Start system will not operate. Close the hood, turn the engine switch
off, wait 30 seconds or more, and then start the engine.

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4-5. Using the driving support systems

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When to use the Stop & Start system

●

When stopping the vehicle for a longer period of time, stop the engine com-
pletely.

●

When the engine is stopped by the Stop & Start system, the steering wheel
feels heavy.

●

When the system cannot operate, is canceled, or is malfunctioning, warning
messages and the warning buzzer are used to inform the driver. (



P. 397)

●

If the engine switch is pressed when the engine is stopped by the Stop &
Start system, the engine will stall and will not be able to be restarted by the
automatic engine start function. In this case, restart the engine using the
normal engine starting procedure. (



P. 270)

●

When the engine is restarted by the Stop & Start system, the power outlet
may be temporarily unusable, but this is not a malfunction.

●

Installation and removal of electrical components and wireless devices may
affect the Stop & Start system, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer for details.

●

While driving with the four-wheel drive control switch in the L4 position

*

, it is

recommended that the Stop & Start system be canceled because the sys-
tem may not operate properly.

*

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

■

If the windshield is fogged up while the engine is stopped by the Stop &
Start system

Turn the windshield defogger on. (



P. 501, 510)

If the windshield fogs up frequently, press the Stop & Start cancel switch to
disable the system.

■

If an odor comes from the air conditioning system while the engine is
stopped by the Stop & Start system

Vehicles with a manual air conditioning system:
If the idling stop time is set to “Extended”, change the setting to “Standard”. If
an odor occurs even when “Standard” is selected, press the Stop & Start can-
cel switch to deactivate the Stop & Start system.
Vehicles with an automatic air conditioning system:
Press the Stop & Start cancel switch to deactivate the Stop & Start system.

■

Air conditioning system while the engine is stopped by the Stop & Start
system

●

Vehicles with an automatic air conditioning system: 
If the air conditioning system is being used in automatic mode, the fan
speed may be reduced or the fan may be stopped while the engine is
stopped by the Stop & Start system in order to reduce changes in the cabin
temperature.

●

To ensure air conditioning system performance when the vehicle is stopped,
disable the Stop & Start system by pressing the Stop & Start cancel switch.

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4-5. Using the driving support systems

■

Changing the idling stop time with the air conditioning system on

When the air conditioning system is on, the Stop & Start system idling stop
time can be switched by performing either of the following operations. (The
idling stop time of the Stop & Start system when the air conditioning system is
off cannot be switched.)



Changing the settings using the Stop & Start cancel switch

Each time the Stop & Start cancel switch is pressed and held for 3 seconds or
more, the system switches between “Standard” and “Extended”. (The system
status can be confirmed on the Stop & Start system information screen of the
multi-information display.)



Changing the settings from 

 (Stop & Start system information) screen

(vehicles with the multi-information display type B)

When 

 (Stop & Start system information) screen is displayed, press

 on the meter control switch (



P. 140).

Operate the meter control switch up or down to select “Duration”, and then
press 

 on the meter control switch.

Operate the meter control switch up or down to select “Standard” or
“Extended”, and then press 

 on the meter control switch.



Changing the settings from 

 (Settings display) screen (vehicles with the

multi-information display type B)

When 

 (Settings display) screen is displayed, operate the meter control

switch up or down to select “Duration”.
The system switches between “Standard” and “Extended” each time 
is pressed.

■

The Stop & Start system protection function

●

When an excessively loud sound is being projected by the audio system,
the audio system may be automatically cut off in order to reduce battery
consumption. If it occurs, turn the engine switch off, wait for 3 seconds or
longer and then turn it to ACCESSORY mode or IGNITION ON mode to re-
enable the audio system.

●

The audio system may not be activated when the battery terminals are dis-
connected and then reconnected. If it occurs, turn the engine switch off and
then repeat the following operation twice to activate the audio system nor-
mally.
• Turn the engine switch to IGNITION ON mode and then to off.

■

When the battery is deteriorated

If the engine is stopped by the Stop & Start system, the vehicle may take lon-
ger to restart than usual.

1

2

3

1

2

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■

When exchanging the battery



P. 728

■

Displaying the Stop & Start system status (vehicles with the multi-infor-
mation display type B)



P. 144

■

Multi-information display messages (vehicles with the multi-information dis-
play type B)

If the following situations, 

 and a message may be displayed on the multi-

information display.

●

When the engine cannot be stopped by the Stop & Start system

Message

Details/Actions

“Depress Brake Firmly
to Activate”

The brake pedal is not depressed enough.



Depress the brake pedal further after stop-
ping the vehicle.

“For Climate Control”

• The air conditioning system is being used

when the ambient temperature is high or low.



Readily operates when the difference
between the set temperature and cabin
temperature is small.

• Windshield defogger is turned on.

“Battery Charging”

• The battery charge amount may be low.



Engine stop is temporarily prohibited to
prioritize charging of the battery, but if the
engine is operated for a short while,
engine stop is allowed.

• A refresh charge may be occurring.



After a refresh charge for up to an hour
completes, the system can be operated.

• If displayed continuously for a long time (more

than 60 minutes)



The battery may have deteriorated. Con-
tact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable
repairer.

• The engine may have been started with the

hood opened.



Close the hood, turn the engine switch off,
wait 30 seconds or more, and then start
the engine.

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4-5. Using the driving support systems

●

When the engine automatically restarts while stopped by the Stop & Start
system

“System Temperature
Low”

• The battery may be cold.



Operating the engine for a short while
allows the system to recover due to the
temperature increase in the engine com-
partment.

“System Temperature
High”

• The battery may be extremely hot.



If the engine is stopped and the engine
compartment is allowed to cool suffi-
ciently, the system recovers.

“Steering Wheel
Turned”

The steering wheel is being turned.

“Driver Seat Belt
Unbuckled”

The driver seat belt is not fastened.

“Non-Dedicated Bat-
tery”

A non-dedicated battery for the Stop & Start sys-
tem may have been installed.



The Stop & Start system does not operate.
Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.

Message

Details/Actions

“For Climate Control”

• The air conditioning system is turned on or the

air conditioning is being used.

• Windshield defogger is turned on.

“Battery Charging”

The battery charge amount may be low.



The engine is restarted to prioritize battery
charging. Operating the engine for a short
while allows the system to recover.

“Steering Wheel
Turned”

The steering wheel was operated.

“Driver Seat Belt
Unbuckled”

The driver seat belt has been unfastened.

Message

Details/Actions

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4-5. Using the driving support systems

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■

If the “Stop & Start System Malfunction Visit Your Dealer” is displayed on the
multi-information display (vehicles with the multi-information display type B)

The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.

■

If the Stop & Start cancel indicator continues to flash (vehicles with the
multi-information display type A)

The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.

WARNING

■

When the Stop & Start system is operating

●

Depress the brake pedal and apply the parking brake when necessary
while the engine is stopped by the Stop & Start system (while the Stop &
Start indicator is on).

●

Do not allow anyone to leave the vehicle while the engine is stopped by
the Stop & Start system (while the Stop & Start indicator is on). 
An accident may occur due to the automatic engine start function.

●

Ensure that the engine is not stopped by the Stop & Start system while the
vehicle is in a poorly ventilated area. The engine may restart due to the
automatic engine start function, causing exhaust gases to collect and
enter the vehicle, possibly resulting in death or a serious health hazard.

●

Turn the engine switch off when the vehicle is to be stopped for an
extended period of time.