Toyota Sienna Hybrid (2023 year). Manual in english

288

4-5. Using the driving support systems

■

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.

(



P.547)

: If equipped

RSA (Road Sign

Assist)

The RSA system recognizes
specific road signs using
the front camera to provide
information to the driver via
the display.

If the system judges that the
vehicle is being driven over
the speed limit, performing
prohibited actions, etc.
according to the recog-
nized road signs, it notifies
the driver through a visual
notification and notification
buzzer.

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.

289

4-5. Using the driving support systems

ing

When the front camera recog-
nizes a sign, the sign will be dis-
played on the multi-information
display.



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



P.104)



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



P.104)

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

tion is necessary)

If signs other than speed limit
signs are recognized, they will

be displayed 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-

Indication on the multi-
information display

Supported types of road
signs

Speed limit

Do Not Enter

Stop

Yield

Notification function

290

4-5. Using the driving support systems

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



P.112

■

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 the

windshield near the front camera.

●

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 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 power switch was last turned

off while a speed limit sign was dis-

played on the multi-information dis-

play, the same sign displays again

291

4-5. Using the driving support systems

ing

when the power 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.547)

■

Meter display

Multi-information display

Set speed

Dynamic radar cruise

control with full-speed

range

In vehicle-to-vehicle dis-
tance control mode, the
vehicle automatically accel-
erates, decelerates and
stops to match the speed
changes of the preceding
vehicle even if the accelera-
tor pedal is not depressed.
In constant speed control
mode, the vehicle runs at a
fixed speed.

Use the dynamic radar
cruise control with full-
speed range on freeways
and highways.



Vehicle-to-vehicle distance
control mode (



P.294)



Constant speed control
mode (



P.299)

System Components

292

4-5. Using the driving support systems

Indicators

■

Operation switches

Vehicle-to-vehicle distance
switch

“+RES” switch

Cruise control main switch

Cancel switch

“-SET” switch

WARNING

■

Before using dynamic radar

cruise control with full-speed

range

●

Driving safely is the sole

responsibility of the driver. Do

not rely solely 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.
• When the sensor may not be

correctly detecting the vehicle

ahead:



P.301

• Conditions under which the

vehicle-to-vehicle distance con-

trol mode may not function cor-

rectly:



P.301

●

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.

293

4-5. Using the driving support systems

ing

WARNING

■

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.

●

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

294

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.

WARNING

●

When weather conditions are

bad enough that they may pre-

vent the sensors from detecting

correctly (fog, snow, sandstorm,

heavy rain, etc.)

●

When there is rain, snow, etc.

on the front surface of the radar

or front camera

●

In traffic conditions that require

frequent repeated acceleration

and deceleration

●

When your vehicle is towing a

trailer or during emergency tow-

ing

●

When an approach warning

buzzer is heard often

Driving in vehicle-to-vehicle distance control mode

295

4-5. Using the driving support systems

ing

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
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 deter-
mined 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
vehicle 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

Setting the vehicle speed
(vehicle-to-vehicle dis-
tance control mode)

296

4-5. Using the driving support systems

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.299)

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 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 and
Hawaii

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

or 1 km/h (0.6 mph)

each

time the switch is pressed
Large adjustment: Increases or
decreases in 1 mph (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

Adjusting the set speed

297

4-5. Using the driving support systems

ing

km/h)

or 1 km/h (0.6 mph)

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.299), 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

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.

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)

298

4-5. Using the driving support systems

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.

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.

Distance options

Vehicle-to-vehi-

cle distance

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)

Canceling and resuming
the speed control

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

299

4-5. Using the driving support systems

ing

■

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
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.296

Canceling and resuming the speed

Selecting constant speed
control mode

300

4-5. Using the driving support systems

setting:



P.298

■

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.

■

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 example: Pre-Collision System,

Drive-Start Control)

●

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.

301

4-5. Using the driving support systems

ing

●

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 example: Pre-Collision System,

Drive-Start Control)

●

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 instructions.

(



P.268, 475)

■

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-

cles, the approach warning

(



P.298) 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

■

Conditions under which the

vehicle-to-vehicle distance con-

trol mode may not function cor-

rectly

In the case of the following condi-

tions, operate the brake pedal (or

accelerator pedal, depending on the

situation) as necessary.
As the sensor may not be able to

302

4-5. Using the driving support systems

correctly detect vehicles ahead, the

system may not operate properly.

●

When the road curves or when the

lanes are narrow

●

When steering wheel operation or

your position in the lane is unsta-

ble

●

When the vehicle ahead of you

decelerates suddenly

●

When driving on a road sur-

rounded 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

: If equipped

BSM (Blind Spot Moni-

tor)

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



The BSM (Blind Spot Moni-
tor) function

Assists the driver in making a
decision when changing lanes



The RCTA (Rear Cross
Traffic Alert) function

Assists the driver when back-
ing up

These functions use the
same sensors.

WARNING

■

Cautions regarding the use of

the BSM function

The driver is solely responsible for

safe driving. Always drive safely,

taking care to observe your sur-

roundings.

The BSM function is a supple-

mentary function which alerts the

driver that a vehicle is in a blind

spot of the outside rear view mir-

rors or is approaching rapidly from

behind into a blind spot. Do not

overly rely on the BSM function.

As the function cannot judge if it is

safe to change lanes, over reli-

ance could lead to an accident

resulting in death or serious

injury.
As the system may not function

correctly under certain condi-

tions, the driver’s own visual con-

firmation of safety is necessary.

303

4-5. Using the driving support systems

ing

Multi-information display

Turning the BSM function/RCTA
function on/off.

Outside rear view mirror indi-
cators

BSM function:
When a vehicle is detected in a
blind spot of the outside rear view
mirrors or approaching rapidly from
behind into a blind spot, the outside
rear view mirror indicator on the

detected side will illuminate. If the
turn signal lever is operated toward
the detected side, the outside rear
view mirror indicator will flash.
RCTA function:
When a vehicle approaching from
the right or left at the rear of the
vehicle is detected, both outside
rear view mirror indicators will flash.

BSM OFF indicator/RCTA
OFF indicator

When the Blind Spot Monitor is dis-
abled, the BSM OFF indicator illu-
minates.
When the RCTA function is dis-
abled, the RCTA OFF indicator illu-
minates.

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.308) for the detected side will

be displayed.

RCTA buzzer (RCTA func-
tion only)

If a vehicle approaching from the
right or left at the rear of the vehicle
is detected, a buzzer will sound
from behind the rear seat.

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

screen of the multi-information
display. (



P.112) Each time the

power switch is turned off then
changed to ON, the BSM func-

WARNING

■

Cautions regarding the use of

the RCTA function

There is a limit to the degree of

recognition accuracy and control

performance that this system can

provide, do not overly rely on this

system. The driver is always

responsible for paying attention to

the vehicle’s surroundings and

driving safely.

System components

Turning the BSM func-
tion/RCTA function on/off

Toyota Sienna Hybrid (2023 year). Manual in english - page 18