Toyota Tundra (2023 year). Manual in english

255

4-5. Using the driving support systems

ing

the side where the turn signal was

operated)

• Vehicle is not being driven around

a sharp curve.

• No system malfunctions are

detected. (



P.257)

:The function operates even if the

vehicle speed is less than
approximately 32 mph (50 km/h)
when the lane centering function
is operating.

:May recognize the boundaries

between the asphalt and the side
of the road, such as grass, soil, or
the curb, to be road lanes

●

Steering assist function

This function operates 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.

• Hands off steering wheel warning

is not displayed. (



P.256)

●

Vehicle sway warning function

This function operates when all of
the following conditions are met.

• Setting for “Sway Warning” in

of the multi-information display is
set to “ON”. (



P.574)

• 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.257)

●

Lane centering function

This function operates when all of
the following conditions are met.

• LTA is turned on.
• Setting for “Lane Center” in

the multi-information display is set
to “ON”. (



P.574)

• This function recognizes white

(yellow) lane lines or the position

of a preceding vehicle (except

when the preceding vehicle is

small, such as a motorcycle).

• The dynamic radar cruise control

with full-speed range 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.257)

• 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.256)

• The vehicle is being driven in the

center of a lane.

• Steering assist function is not

operating.

• When your vehicle is not towing a

trailer or during emergency tow-

ing.

■

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.

(



P.254)

●

If the operation conditions
(



P.254) are no longer met while

the lane centering function is
operating, the steering wheel may

256

4-5. Using the driving support systems

vibrate and the buzzer may sound
to indicate that the function has
been temporarily canceled. How-
ever, if the “Alert” customization
setting is set to

, the system

will notify the driver by vibrating
the steering wheel instead of
sounding the buzzer.

■

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. Also, it may

be difficult to feel steering wheel

vibrations due to the road condi-

tions, etc.

●

Vehicle with BSM: It may not be

possible for the system to deter-

mine if there is a danger of a colli-

sion with a vehicle in an adjacent

lane.

●

Do not attempt to test the opera-

tion of the lane departure alert

function.

■

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 system 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 that

the driver is driving without hold-

ing the steering wheel while the

system 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 small amount.

The buzzer also sounds even if the
alert type is set to

●

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. Also, if the system
determines that the vehicle is driv-
ing around a curve, warnings will
occur earlier than during straight-
lane driving.

●

When the system determines that

the driver is driving without hold-

ing the steering wheel while the

steering wheel assist 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

257

4-5. Using the driving support systems

ing

buzzer sounds, the continuing time
of the buzzer becomes longer.

The buzzer also sounds even if the
alert type is set to

■

Vehicle sway warning function

When the system determines that

the vehicle is swaying while the

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 following warning message is

displayed on the multi-information

display and the LTA 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 temporarily canceled

due to a malfunction 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.574)

258

4-5. Using the driving support systems

: If equipped

The RSA system recognizes
specific road signs using the
front camera and/or navigation
system (when speed limit infor-
mation is available) to provide
information to the driver via the
display.

If the system judges that the
vehicle is being driven over the
speed limit, performing prohib-
ited actions, etc., according to
the recognized road signs, it
notifies the driver through a
visual notification and notifica-
tion buzzer.

When the front camera recog-
nizes a sign and/or information
of a sign is available from the
navigation system, the sign will
be displayed on the multi-infor-
mation display.



When the driving support sys-
tem information is selected, a
maximum of 3 signs can be
displayed. (



P.93)



When a tab other than the
driving support system infor-
mation is selected, the follow-
ing types of road signs will be
displayed. (



P.93)

• Speed limit sign
• Do Not Enter sign (when notifica-

tion is necessary)

If signs other than speed limit signs

RSA (Road Sign

Assist)

Summary of function

WARNING

■

Before using the RSA

Do not rely solely upon the RSA

system. RSA is a system which

supports the driver by providing

information, but it is not a replace-

ment for a driver’s own vision and

awareness. Drive safely by

always paying careful attention to

the traffic rules.

Indication on the multi-
information display

259

4-5. Using the driving support systems

ing

are recognized, they will be dis-
played in an overlapping stack
under the current speed limit sign.

The following types of road
signs, including electronic signs
and blinking signs, are recog-
nized.

A non-official or a recently intro-
duced traffic sign may not be recog-
nized.

In the following situations, the
RSA system will notify the
driver.



When the vehicle speed
exceeds the speed notifica-
tion threshold of the speed
limit sign displayed, the sign
display will be emphasized
and a buzzer will sound.



When the RSA system recog-
nizes a do not enter sign and

determines that your vehicle
has entered a no-entry area,
the displayed sign will flash
and a buzzer will sound.

Depending on the situation, a
notification function may not
operate properly.

■

Setting procedure

Press

of the meter

control switches and select

Press

of the meter

control switches and select
“

RSA”, then press

■

Automatic turn-off of RSA sign

display

In the following situations, a dis-

played speed limit sign and/or do

not enter sign will stop being dis-

played automatically:

●

No sign has been recognized for a

certain distance.

●

The road changes due to a left or

right turn, etc.

In the following situations, stop and

yield signs will stop being displayed

automatically:

●

The system determines that your

vehicle has passed the sign.

●

The road changes due to a left or

right turn, etc.

■

Conditions in which the func-

tion may not operate or detect

correctly

In the following situations, RSA

does not operate normally and may

not recognize signs, display the

incorrect sign, etc. However, this

does not indicate a malfunction.

●

The front camera is misaligned

due to a strong impact being

applied to the sensor, etc.

●

Dirt, snow, stickers, etc., are on

Supported types of road
signs

Speed limit

Do Not Enter

Stop

Yield

Notification function

260

4-5. Using the driving support systems

the windshield near the front cam-

era.

●

In inclement weather such as

heavy rain, fog, snow or sand

storms

●

Light from an oncoming vehicle,

the sun, etc., enters the front cam-

era.

●

The sign is dirty, faded, tilted or

bent.

●

The contrast of electronic sign is

low.

●

All or part of the sign is hidden by

the leaves of a tree, a pole, etc.

●

The sign is only visible to the front

camera for a short amount of time.

●

The driving scene (turning, lane

change, etc.) is judged incorrectly.

●

If a sign not appropriate for the

currently traveled lane, but the

sign exists directly after a freeway

branches, or in an adjacent lane

just before merging.

●

Stickers are attached to the rear of

the preceding vehicle.

●

A sign resembling a system com-

patible sign is recognized.

●

Side road speed signs may be

detected and displayed (if posi-

tioned in sight of the front camera)

while the vehicle is traveling on

the main road.

●

Roundabout exit road speed signs

may be detected and displayed (if

positioned in sight of the front

camera) while traveling on a

roundabout.

●

The front of the vehicle is raised or

lowered due to the carried load.

●

The surrounding brightness is not

sufficient or changes suddenly.

●

When a sign intended for trucks,

etc., is recognized.

●

The navigation system map data

is outdated.

●

The navigation system is not oper-

ating.

●

The speed information displayed

on the meter and on the naviga-

tion system may be different due

to the navigation system using

map data.

■

Speed limit sign display

If the engine switch was last turned

off while a speed limit sign was dis-

played on the multi-information dis-

play, the same sign displays again

when the engine switch is turned to

ON.

■

If “RSA Malfunction Visit Your

Dealer” is shown

The system may be malfunctioning.

Have the vehicle inspected by your

Toyota dealer.

■

Customization

Some functions can be customized.

(Customizable features:



P.574)

261

4-5. Using the driving support systems

ing

: If equipped

In vehicle-to-vehicle distance
control mode, the vehicle auto-
matically accelerates, deceler-
ates and stops to match the
speed changes of the preceding
vehicle even if the accelerator
pedal is not depressed. In con-
stant speed control mode, the
vehicle runs at a fixed speed.
Use the dynamic radar cruise
control with full-speed range on
freeways and highways.



Vehicle-to-vehicle distance
control mode (



P.264)



Constant speed control mode
(



P.268)

■

Meter display

Multi-information display

Set speed

Indicators

■

Operation switches

Vehicle-to-vehicle distance
switch

“+RES” switch

Cancel switch

“-SET” switch

Cruise control main switch

Dynamic radar cruise

control with full-speed

range

Summary of functions

System Components

WARNING

■

Before using dynamic radar

cruise control with full-speed

range

●

Driving safely is the sole

responsibility of the driver. Do

not rely solely on 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.

262

4-5. Using the driving support systems

WARNING

• When the sensor may not be

correctly detecting the vehicle

ahead:



P.270

• Conditions under which the

vehicle-to-vehicle distance con-

trol mode may not function cor-

rectly:



P.271

●

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 are limitations to

the assistance provided by the

system. Failure to do so may

cause an accident resulting in

death or serious injury.

●

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 following 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.

263

4-5. Using the driving support systems

ing

WARNING

●

Assisting the driver to operate

the vehicle

The dynamic radar cruise control
with full-speed range does not
include functions which will pre-
vent or avoid collisions with vehi-
cles ahead of your vehicle.
Therefore, if there is ever any
possibility of danger, 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 driving 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 vehicles is towing a

trailer or another vehicle, except

when the following condition is

met.

• When the other vehicle is a

trailer properly attached and

connected to Toyota’s official

TBC ECU. (



P.186)

●

When an approach warning

buzzer is heard often

●

When the vehicle is lifted up,

except in the following cases.

• When using a Toyota official lift

kit up to 4 in. (101 mm), includ-

ing tire height. Aftermarket lift

kits may degrade system perfor-

mance.

264

4-5. 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 vehicle-
to-vehicle following distance, and operates to maintain a suitable fol-
lowing distance from the vehicle ahead. The desired vehicle-to-vehi-
cle distance can also be set by operating the vehicle-to-vehicle
distance switch.

When driving on downhill slopes, the 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 cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed
appears

When a vehicle is detected running ahead of you, the system automatically
decelerates your vehicle. When a greater reduction in vehicle speed 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 stops, your vehicle will also stop (vehicle is
stopped by system control). After 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 performed, system

Driving in vehicle-to-vehicle distance control mode

265

4-5. Using the driving support systems

ing

control continues to keep your vehicle stopped.
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 vehicle will accel-
erate to help to overtake 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 vehicle is driven to a
region where the overtaking lane is on a different side from where the vehi-
cle is normally driven, the vehicle may accelerate when the turn 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 constant speed cruising.

Press 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 control main switch is

pressed and held for 1.5 seconds

or more, the system turns on in

constant speed control mode.

(



P.268)

“Radar Ready”

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)

266

4-5. 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.

Increases the speed (Except
when the vehicle has been
stopped by system control in
vehicle-to-vehicle distance
control mode)

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, Hawaii

Fine adjustment: By 1 mph (1.6
km/h)

or 1 km/h (0.6mph)

each

time the switch is pressed
Large adjustment: Increases or
decreases in 1mph (1.6 km/h)

1 km/h (0.6 mph)

increments for

as long as the switch is held



Except for the U.S. mainland
and Hawaii

Fine adjustment: By 1 mph (1.6
km/h)

or 1 km/h (0.6mph)

each

time the switch is pressed
Large adjustment: Increases or
decreases in 5 mph (8 km/h)

or 5

km/h (3.1 mph)

increments for as

long as the switch is held

In the constant speed control
mode (



P.268), the set speed

will be increased or decreased
as follows:

Fine adjustment: By 1 mph (1.6
km/h)

or 1 km/h (0.6 mph)

each

time the switch is pressed
Large adjustment: The speed will
continue to change while the switch
is held.

:When the set speed is shown in

“MPH”

:When the set speed is shown in

“km/h”

■

Increasing the set speed by
the accelerator pedal

Accelerate with accelerator
pedal operation to the
desired vehicle speed

Adjusting the set speed

267

4-5. Using the driving support systems

ing

Press the “-SET” switch

Pressing the switch changes the
vehicle-to-vehicle distance as
follows:

Long

Medium

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.

“Operate Cruise switch or
Accelerator Pedal to

Changing the vehicle-to-
vehicle distance (vehicle-
to-vehicle distance con-
trol mode)

Vehicle-to-vehicle dis-
tance settings (vehicle-to-
vehicle distance control
mode)

Distance

options

Vehicle-to-vehicle dis-

tance

Long

Approximately 160 ft.

(50 m)

Medium

Approximately 130 ft.

(40 m)

Short

Approximately 100 ft.

(30 m)

Resuming follow-up
cruising when the vehicle
has been stopped by sys-
tem control (vehicle-to-
vehicle distance control
mode)

268

4-5. Using the driving support systems

Resume”

Pressing 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.)

Pressing 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

When constant speed control
mode is selected, your vehicle
will maintain a set speed without
controlling the vehicle-to-vehi-
cle distance. Select this mode
only when vehicle-to-vehicle dis-
tance control mode does not
function correctly due to a dirty

Canceling and resuming
the speed control

Approach warning (vehi-
cle-to-vehicle distance
control mode)

Selecting constant speed
control mode

269

4-5. Using the driving support systems

ing

radar, etc.

With the cruise control off,
press and hold the cruise
control main switch for 1.5
seconds or more.

Immediately after the switch is

pressed, the dynamic radar cruise

control indicator will come on. After-

wards, it switches to the cruise con-

trol indicator.
Switching to constant speed control

mode is only possible when operat-

ing the switch with the cruise con-

trol off.

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

set speed.
Adjusting the speed setting:



P.266

Canceling and resuming the speed

setting:



P.268

■

Dynamic radar cruise control

with full-speed range can be set

when

●

The shift lever is in D.

●

The desired set speed can be set

when the vehicle speed is approx-

imately 20 mph (30 km/h) or more.

(However, when the vehicle speed

is set while driving at below

approximately 20 mph [30 km/h],

the set speed will be set to

approximately 20 mph [30 km/h].)

■

Accelerating after setting the

vehicle speed

The vehicle can accelerate by oper-

ating the accelerator pedal. After

accelerating, the set speed

resumes. However, during vehicle-

to-vehicle distance control mode,

the vehicle speed may decrease

below the set speed in order to

maintain the distance to the preced-

ing vehicle.

■

When the vehicle stops while

follow-up cruising

●

Pressing the “+RES” switch while

the vehicle ahead stops will

resume follow-up cruising if the

vehicle ahead starts off within

approximately 3 seconds after the

switch is pressed.

●

If the vehicle ahead starts off

within 3 seconds after your vehicle

stops, follow-up cruising will be

resumed.

270

4-5. Using the driving support systems

■

Automatic cancelation of vehi-

cle-to-vehicle distance control

mode

Vehicle-to-vehicle distance control

mode is automatically canceled in

the following situations.

●

VSC is activated.

●

TRAC is activated for a period of

time.

●

When the VSC or TRAC system is

turned off.

●

The sensor cannot detect cor-

rectly because it is covered in

some way.

●

When the brake control or output

restriction control of a driving sup-

port system operates. (For exam-

ple: Pre-Collision System, Drive-

Start Control)

●

The center differential lock/unlock

is not completed within 5 seconds

while the cruise control system is

on.

●

The parking brake is operated.

●

The vehicle is stopped by system

control on a steep incline.

●

The following are detected when

the vehicle has been stopped by

system control:

• The driver is not wearing a seat

belt.

• The driver’s door is opened.

• The vehicle has been stopped for

about 3 minutes.

If vehicle-to-vehicle distance control

mode is automatically canceled for

any reasons other than the above,

there may be a malfunction in the

system. Contact your Toyota dealer.

■

Automatic cancelation of con-

stant speed control mode

Constant speed control mode is

automatically canceled in the follow-

ing situations:

●

Actual vehicle speed is more than

approximately 10 mph (16 km/h)

below the set vehicle speed.

●

Actual vehicle speed falls below

approximately 20 mph (30 km/h).

●

VSC is activated.

●

TRAC is activated for a period of

time.

●

When the VSC or TRAC system is

turned off.

●

When the brake control or output

restriction control of a driving sup-

port system operates. (For exam-

ple: Pre-Collision System, Drive-

Start Control)

●

The center differential lock/unlock

is not completed within 5 seconds

while the cruise control system is

on.

●

The parking brake is operated.

If constant speed control mode is

automatically canceled for any rea-

sons other than the above, there

may be a malfunction in the system.

Contact your Toyota dealer.

■

Brake operation

A brake operation sound may be

heard and the brake pedal response

may change, but these are not mal-

functions.

■

Warning messages and buzzers

for dynamic radar cruise con-

trol with full-speed range

Warning messages and buzzers are

used to indicate a system malfunc-

tion 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 instruc-

tions.(



P.233, 520)

■

When the sensor may not be

correctly detecting the vehicle

ahead

In the case of the following and

depending on the conditions, oper-

ate the brake pedal when decelera-

tion 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 vehi-

Toyota Tundra (2023 year). Manual in english - page 16