Lexus RX500h (2024 year). Manual in english - page 9

 

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Lexus RX500h (2024 year). Manual in english - page 9

 

 

282

4-5. Using the driving support systems

crossing the road or assistance to a 

detectable object on the side of the road 

is performed and the system determines 

the driver is not holding the steering 

wheel

If no operations are detected for a certain 
amount of time, a buzzer will sound, the 
warning will operate. This warning may 
also operate if the driver only operates 
steering wheel a small amount continu-
ously.

Warning operation after preceding 

vehicle deceleration assistance has 

ended

After preceding vehicle deceleration assis-

tance has ended, if the driver does not 

operate the brake pedal or accelerator 

pedal and the vehicle approaches the pre-

ceding vehicle, the display will flash and a 

buzzer will sound to urge the driver to 

decelerate. If the system determines that 

the driver is operating the brake pedal or 

accelerator pedal, the warning will be can-

celed.

*

: If equipped

When the system detects a vehicle 
approaching from the left or right in 
front of your vehicle when 
approaching an intersection, a noti-
fication will be displayed.

• Head-up  display

When the system determines that 
your vehicle may be about to enter 
an intersection even though a vehi-
cle is approaching from the left or 
right in front of your vehicle, a 
buzzer will sound and a message 
will be displayed to urge you to 
depress the brake pedal.

• Multi-information display

FCTA (Front Cross Traffic 
Alert)

*

When approaching an intersec-
tion, etc., at a low speed, vehicles 
approaching from the left and right 
of the front of the vehicle can be 
detected and the driver informed of 
these vehicles.

FCTA system control

283

4-5. Using the driving support systems

4

Driving

FCTA system operating conditions

The system will operate when all of the fol-

lowing conditions are met:

A shift position other than P or R is 

selected

The vehicle speed is approximately 10 

mph (15 km/h) or less

A vehicle is approaching from the left or 

right in front of your vehicle at a speed 

between approximately 7 to 37 mph (10 

to 60 km/h)

There are no vehicles in front of your 

vehicle

The accelerator pedal is not being 

strongly depressed

The brake pedal is not being strongly 

depressed

Situations in which the system may 

operate even though no vehicles are 

approaching

In certain situations, such as the following, 

the system may operate even though no 

vehicles are approaching:

When approaching objects on the road-

side, such as guardrails, traffic signs, util-

ity poles, street lights, trees, tall grass, 

walls, etc.

When passing an object on the side of the 

road, such as a parked vehicle

When a vehicle or pedestrian is 

approaching from the left or right in front 

of your vehicle in the distance

When a vehicle or pedestrian is moving 

within a parking spot, etc., next to the lane 

your vehicle is in

When a pedestrian or bicyclist is 

approaching on a sidewalk

When a vehicle or pedestrian is moving 

away from your vehicle

When an approaching vehicle is deceler-

ating or stops

When an approaching vehicle makes a 

left/right turn immediately in front of your 

vehicle

When a pedestrian is approaching your 

vehicle

When an oncoming vehicle makes a 

right/left turn

When your vehicle enters an intersection 

before a vehicle approaching from the 

left or right in front of your vehicle

When stopped at traffic light and a vehi-

cle approaches from the left or right in 

front of your vehicle

When making a left/right turn in front of 

an approaching vehicle

WARNING

For safe use

Driving safely is solely the responsibility 

of the driver. Pay careful attention to the 

surrounding conditions in order to 

ensure safe driving.

The FCTA system is a supplementary 

system that informs the driver of vehicles 

approaching from the left and right of the 

front of the vehicle.

Over-reliance on this system may lead to 

an accident resulting in death or serious 

injury.

The details of the warning display may 

differ from the actual traffic conditions.

Although the warning display will stop 

being displayed after a certain amount of 

time, this does not necessarily indicate 

that there are no longer any vehicles or 

pedestrians around your vehicle.

284

4-5. Using the driving support systems

When an oncoming vehicle approaches 

and passes

When being overtaken by another vehi-

cle

When driving next to another vehicle or a 

pedestrian

When a vehicle or pedestrian 

approaches the side of your vehicle

Situations in which the system may not 

operate properly

In situations such as the following, a vehicle 

may not be detected by a front side radar 

sensor and the system may not operate 

properly:

If an approaching vehicle moves sud-

denly (sudden steering, acceleration, 

deceleration, etc.)

If a vehicle is approaching from the left or 

right of the front of your vehicle diago-

nally

When a vehicle is approaching from the 

left or right in front of your vehicle in the 

distance

When there is an object between your 

vehicle and an approaching vehicle

When several vehicles are approaching 

with little space between them

Situations in which the sensors may not 

operate properly: 

P.249

Situations in which some or all of the 

functions of the system cannot operate: 

P.250

The FCTA can be enabled/disabled 
through a customize setting. 
(

P.585)

The following settings of the FCTA 
can be changed through customize 
settings. (

P.585)

Changing FCTA settings

285

4-5. Using the driving support systems

4

Driving

*

: If equipped

When the front camera detects a 
sign or information of a sign is avail-
able from the navigation system, the 
sign will be displayed on the display.

Multiple signs can be displayed.

Depending on the specifications of the 
vehicle, the number of displayed signs may 
be limited.

Operating conditions of sign display

Signs will be displayed when the following 

conditions are met:

The system has detected a sign

In the following situations, a displayed sign 

may stop being displayed:

When a new sign has not been detected 

for a certain distance

When the system determines that the 

road being driven on has changed, such 

as after a left or right turn

Situations in which the display function 

may not operate properly

In the following situations, the RSA system 

may not operate properly and may not 

detect signs or may display the incorrect 

sign. However, this does not indicate a mal-

function.

When a sign is dirty, faded, tilted or bent

When the contrast of an electronic sign is 

low

When all or part of a sign is hidden by a 

tree, utility pole, etc.

When a sign is detected by the front cam-

era for a short amount of time

When the driving state (turning, chang-

ing lanes, etc.) is judged incorrectly

When a sign is immediately after a free-

way junction or in an adjacent lane just 

before merging

When stickers are attached to the rear of 

a preceding vehicle

When a sign similar to a system compati-

ble sign is detected as a system compati-

ble sign

When a speed limit sign for a frontage 

road is within detection range of the front 

camera

When driving around a roundabout

When a sign intended for trucks, etc. is 

detected

RSA (Road Sign Assist)

*

The RSA system detects specific 
road signs using the front camera 
and/or navigation system (when 
speed limit information is available) 
and warns the driver via displays 
and buzzers.

WARNING

For safe use

Driving safely is solely the responsibil-

ity of the driver. Pay careful attention to 

the surrounding conditions in order to 

ensure safe driving.

Do not rely solely upon the RSA. The 

RSA assists the driver by providing 

road sign information, but it is not a 

replacement for the driver’s own vision 

and awareness. Driving safely is solely 

the responsibility of the driver. Pay 

careful attention to the surrounding 

conditions in order to ensure safe driv-

ing.

Situations in which the RSA should 

not be used

When it is necessary to disable the sys-

tem: 

P.244

Situations in which the system may 

not operate properly

Situations in which the sensors may not 

operate properly: 

P.249

Display Function

286

4-5. Using the driving support systems

When the navigation system map data is 

out of date

When the navigation system cannot be 

used

In this case, the speed limit signs displayed 

on the multi-information display and navi-

gation system display may differ.

In the following situations, the RSA sys-
tem will output a warning to notify the 
driver.

If the vehicle speed exceeds the 
speed warning threshold of the 
speed limit sign displayed on the 
display, the sign display will be 
emphasized and a buzzer will 
sound.

When the RSA system detects a do 
not enter sign and determines that 
the vehicle has entered a no-entry 
area, the do not enter sign displayed 
on the display will flash and a buzzer 
will sound.

Operating conditions of the notification 

functions

Excess speed notification function

This function will operate when the follow-

ing condition is met:

• A speed limit road sign is recognized by 

the system.

No entry notification function

This function will operate when all of the 

following conditions are met:

• More than one no entry road signs are 

recognized by the system simultaneously.

• The vehicle is passing between no entry 

road signs recognized by the system.

The following types of road signs 
can be displayed.

However, non-standard or recently intro-
duced traffic signs may not be displayed.

Depending on the specifications of 
the vehicle, signs may be displayed 
overlapping.

The following settings of the RSA can 

Notification function

Types of road signs supported

Speed limit

Do Not Enter

No U-turn

No Turn On Red

Stop

Yield

Warning

Changing RSA settings

287

4-5. Using the driving support systems

4

Driving

be changed through customize set-
tings. (

P.585)

Dynamic radar cruise con-
trol

This dynamic radar cruise control 
detects the presence of vehicles 
ahead, determines the current 
vehicle-to-vehicle distance, and 
operates to maintain a suitable dis-
tance from the vehicle ahead. The 
desired vehicle-to-vehicle distance 
can be set by operating the vehi-
cle-to-vehicle distance switch.

Use the dynamic radar cruise con-
trol only on highways and express-
ways.

WARNING

For safe use

Driving safely is solely the responsibil-

ity of the driver. Do not overly rely on 

this system, and pay careful attention 

to the surrounding conditions in order 

to ensure safe driving.

The dynamic radar cruise control pro-

vides driving assistance to reduce the 

driver’s burden. However, there are 

limitations to the assistance provided.

Read the following items carefully. Do 

not overly rely on this system and always 

drive carefully.
• Conditions under which the system 

may not operate correctly: 

P.294

Set the speed appropriately according 

to the speed limit, traffic flow, road 

conditions, weather conditions, etc. 

The driver is responsible for confirm-

ing the set speed.

288

4-5. Using the driving support systems

WARNING

Even if the system is operating cor-

rectly, the condition of a preceding 

vehicle as recognized by the driver 

and detected by the system may differ. 

Therefore, it is necessary for the driver 

to pay attention, assess risks, and 

ensure safety. Over-reliance on this 

system to drive the vehicle safely may 

lead to an accident resulting in death 

or serious injury.

Precautions for the driving assist sys-

tems

Observe the following precautions, as 

there are limitations to the assistance 

provided by the system. Over-reliance 

on this system may lead to an accident 

resulting in death or serious injury.

Details of support provided for the 

driver’s vision

The dynamic radar cruise control is only 

intended to help the driver in determin-

ing the distance between the driver’s own 

vehicle and a designated preceding vehi-

cle. It is not a system which allows for 

careless or inattentive driving, and is not 

a system which assists in poor visibility 

conditions.
The driver must pay attention to their sur-

roundings, even when the vehicle stops.

Details of support provided for the 

driver’s judgement

The dynamic radar cruise control deter-

mines whether the distance between the 

driver’s own vehicle and a designated 

preceding vehicle 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 vigi-

lant and to determine whether or not 

there is a possibility of danger.

Details of support provided for the 

driver’s operation

The dynamic radar cruise control does 

not include functions which will prevent 

or avoid collisions with vehicles 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 safety.

Situations in which the dynamic radar 

cruise control should not be used

Do not use the dynamic radar cruise 

control in the following situations. As the 

system will not be able to provide appro-

priate control, using it may lead to an 

accident resulting in death or serious 

injury.

Roads where there are pedestrians, 

cyclists, etc.

When driving on a highway or 

expressway entrance or exit

When the approach warning sounds 

frequently

Situations in which the sensors may not 

operate properly: 

P.294

Situations in which the lane may not be 

detected: 

P.250

289

4-5. Using the driving support systems

4

Driving

Constant speed cruising:
When there are no vehicles ahead

The vehicle drives at the speed set by the driver.
If the set vehicle speed is exceeded while driving down a hill, the set vehicle speed display 
will blink and a buzzer will sound.

Deceleration and follow-up cruising:
When a preceding vehicle driving slower than the set vehicle speed is detected

When a vehicle is detected driving ahead of your vehicle, the vehicle automatically decel-
erates and if a greater reduction in vehicle speed is necessary, the brakes are applied (the 
stop lights will come on at this time). The vehicle is controlled to maintain the vehi-
cle-to-vehicle distance set by the driver, in accordance with changes in the speed of the 
preceding vehicle. If vehicle deceleration is not sufficient and the vehicle approaches the 
vehicle ahead, the approach warning will sound.

Acceleration:
When there are no longer any preceding vehicles driving slower than the set 
vehicle speed

The vehicle accelerates until the set vehicle speed is reached and then resumes constant 
speed cruising.

Starting off:

If a preceding vehicle stops, the vehicle will also stop (controlled stop). After the preceding 
vehicle starts off, pressing the “RES” switch or depressing the accelerator pedal will resume 

Basic functions

A

B

C

D

290

4-5. Using the driving support systems

follow-up cruising (start off operation). If a start off operation is not performed, the con-
trolled stop will continue.
Vehicles with Traffic Jam Assist: While driving on a highway or expressway, if a preceding 
vehicle stops, your vehicle will stop accordingly. On some highways and expressways, if the 
system determines that the preceding vehicle starts off within approximately 3 minutes of 
stopping, a buzzer will sound and a message will be displayed on the multi-information dis-
play to notify the driver, and your vehicle will start off accordingly following the preceding 
vehicle. (Extended resume time)

Meter display

Multi-information display
Set vehicle speed
Indicators

Switches

Vehicles without a head-up display

Driving assist mode select switch
Driving assist switch
“+” switch/“RES” switch
“-” switch

Cancel switch
Vehicle-to-vehicle distance switch

Vehicles with a head-up display

The function of each switch differs 
depending on the conditions and 
settings.

When a switch is touched, the function of 
each switch is displayed on the head-up 
display. If the head-up display is off, the 
functions will be displayed on the 
multi-information display.

Driving assist mode select switch
Driving assist switch
“RES” switch

System components

A
B
C

A
B
C
D

E
F

A

B
C
D

291

4-5. Using the driving support systems

4

Driving

“+” switch
“-” switch
Vehicle-to-vehicle distance switch
Cancel switch

1

Press the driving assist mode select 
switch to select dynamic radar 
cruise control.

The dynamic radar cruise control indicator 

will illuminate.

Vehicles without a head-up display

Vehicles with a head-up display

2

Using the accelerator pedal, accel-
erate or decelerate to the desired 
vehicle speed (approximately 20 
mph [30 km/h] or more), and press 

the driving assist switch to set the 
set vehicle speed.

The set vehicle speed will be displayed on 

the multi-information display.
The vehicle speed at the moment the 

switch is released will be the set vehicle 

speed.

Vehicles without a head-up display

Vehicles with a head-up display

Adjusting the set vehicle speed 
using the switches

To change the set vehicle speed, press 
the “+” switch or “-” switch until the 
desired speed is displayed.

Using the dynamic radar cruise 
control

Setting the vehicle speed

E
F

G

H

Adjusting the set vehicle speed

292

4-5. Using the driving support systems

Vehicles without a head-up display

1

Increase set vehicle speed

2

Decrease set vehicle speed

Vehicles with a head-up display

1

Increase set vehicle speed

2

Decrease set vehicle speed

Short press adjustment: Press the switch
Long press adjustment: Press and hold the 
switch until the desired set vehicle speed is 
reached.

The set vehicle speed will increase or 
decrease as follows:

Short press adjustment: Increases or 
decreases by 1 mph (1.6 km/h) each time 
the switch is pressed
Long press adjustment: Increases or 
decreases in 1 mph (1.6 km/h) increments 
continuously while the switch is pressed 
and held

Increasing the set vehicle speed 
using the accelerator pedal

1

Depress the accelerator pedal to 
accelerate the vehicle to the 
desired vehicle speed.

2

Press the “+” switch.

Vehicles without a head-up display

Vehicles with a head-up display

1

Press the cancel switch or driving 
assist switch to cancel control.

Control will also be canceled if the brake 

pedal is depressed.
(If the vehicle has been stopped by system 

control, depressing the brake pedal will not 

cancel control.)

2

Press the “RES” switch to resume 
control.

Each time the switch is pressed, the 

Canceling/resuming control

Changing the vehicle-to-vehicle 
distance

293

4-5. Using the driving support systems

4

Driving

vehicle-to-vehicle distance setting will 
change as follows:

If a preceding vehicle is detected, the pre-
ceding vehicle mark will be displayed.

Vehicles without a head-up display

Vehicles with a head-up display

The actual vehicle-to-vehicle distance var-
ies in accordance with the vehicle speed. 
Also, when the vehicle is stopped by sys-
tem control, it will be stopped at a certain 
distance from the preceding vehicle, 
depending on the situation, regardless of 
the setting.

Operating conditions

The shift position is in D.

The desired set speed can be set when 

the vehicle speed is approximately 20 

mph (30 km/h) or more.

• If the vehicle speed is set while driving at 

below approximately 20 mph (30 km/h), 

the set vehicle speed will be approxi-

mately 20 mph (30 km/h).

• If the vehicle speed is set while driving at 

a speed that exceeds the system’s upper 

limit, the set vehicle speed will be the sys-

tem’s upper limit.

Accelerating after setting the vehicle 

speed

As with normal driving, acceleration can be 

performed by depressing the accelerator 

pedal. After accelerating, the vehicle will 

return to the set vehicle speed. However, 

while in vehicle-to-vehicle distance control 

mode, the vehicle speed may decrease to 

below the set vehicle speed in order to 

maintain the distance from the preceding 

vehicle.

When the vehicle is stopped by system 

control during follow-up cruising

When the “RES” switch is pressed while 

the vehicle is stopped by system control, 

if the preceding vehicle starts off within 

approximately 3 seconds, follow-up 

Illus-

tration 

Num-

ber

Vehi-

cle-to-vehicle 

distance

Approximate Dis-

tance (Vehicle 

Speed: 60 mph 

[100 km/h])

1

Short

Approximately 85 

ft. (25 m)

2

Medium

Approximately 

100 ft. (30 m)

3

Long

Approximately 

145 ft. (45 m)

4

Extra long

Approximately 

200 ft. (60 m)

Illus-

tration 

Num-

ber

Vehi-

cle-to-vehicle 

distance

Approximate Dis-

tance (Vehicle 

Speed: 60 mph 

[100 km/h])

294

4-5. Using the driving support systems

cruising will resume.

If the preceding vehicle starts off within 

approximately 3 seconds of the vehicle 

being stopped by system control, fol-

low-up cruising will resume.

Automatic cancellation of vehi-

cle-to-vehicle distance control mode

In the following situations, vehicle-to-vehi-

cle distance control mode will be canceled 

automatically:

When the brake control or output restric-

tion control of a driving support system 

operates

(For example: Pre-Collision System, 

drive-start control)

When the parking brake has been oper-

ated

When the vehicle is stopped by system 

control on a steep incline

When any of the following are detected 

while the vehicle is stopped by system 

control:

• The driver’s seat belt is unfastened

• The driver’s door is opened

• Approximately 3 minutes have elapsed 

since the vehicle was stopped

The parking brake may be actived automat-

ically.

Situations in which some or all of the 

functions of the system cannot operate: 

P.250

Dynamic radar cruise control system 

warning messages and buzzers

For safe use: 

P.244

Preceding vehicles that the sensor may 

not detect correctly

In the following situations, depending on the 

conditions, if the system cannot provide suf-

ficient deceleration or acceleration is nec-

essary, operate the brake pedal or 

accelerator pedal.
As the sensor may not be able to correctly 

detect these types of vehicles, the approach 

warning (

P.294) may not operate.

When a vehicle cuts in front of your vehi-

cle or changes lanes away from your 

vehicle extremely slowly or quickly

When changing lanes

When a preceding vehicle is driving at a 

low speed

When a vehicle is stopped in the same 

lane as the vehicle

When a motorcycle is traveling in the 

same lane as the vehicle

Conditions under which the system may 

not operate correctly

In the following situations, operate the 

brake pedal (or accelerator pedal, depend-

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

detect a vehicle, the system may not oper-

ate properly.

When a preceding vehicle brakes sud-

denly

When changing lanes at low speeds, such 

as in a traffic jam

Conditions for extended resume time 

(vehicles with Traffic Jam Assist)

Extended resume time is activated when all 

of the following conditions are satisfied:

Vehicles with a display audio: The con-

nected service that Lexus provides is 

subscribed to. Contact your Lexus dealer 

for details.

The vehicle is driving on a vehicle-only 

road, such as an expressway.

There is a preceding vehicle and the sys-

tem is able to detect it.

No vehicle interruptions occur.

The preceding vehicle has not been 

replaced.

Clearance sonar and FCTA are not 

detecting the object in front of you.

The driver monitor judges that the driver 

is looking forward.

The steering wheel has not been oper-

ated.

The brake pedal has not been operated.

In situations where the vehicle 

Approach warning

295

4-5. Using the driving support systems

4

Driving

approaches a preceding vehicle and 
the system cannot provide sufficient 
deceleration, such as if a vehicle cuts in 
front of the vehicle, a warning display 
will flash and a buzzer will sound to 
alert the driver. Depress the brake 
pedal to ensure appropriate vehi-
cle-to-vehicle distance.

Warnings may not occur when

In the following situations, the warning 
may not operate even though the vehi-
cle-to-vehicle distance is short.

When the preceding vehicle is trav-
eling at the same speed or faster 
than your vehicle

When the preceding vehicle is trav-
eling at an extremely low speed

Immediately after the vehicle speed 
has been set

When the accelerator pedal is 
depressed

When a curve is detected, the vehicle 
speed will begin being reduced. When 
the curve ends, the vehicle speed 
reduction will end.

Depending on the situation, the vehicle 
speed will then return to the set vehicle 
speed.
In situations where vehicle-to-vehicle dis-
tance control needs to operate, such as 
when a preceding vehicle cuts in front of 
your vehicle, the curve speed reduction 
function will be canceled.

Situations in which the curve speed 

reduction function may not operate

In situations such as the following, the curve 

speed reduction function may not operate:

When the vehicle is being driven around 

a gentle curve

When the accelerator pedal is being 

depressed

When the vehicle is being driven around 

an extremely short curve

While a warning of the driver monitor 
is being displayed, the vehicle acceler-
ation will be restrained.
When the warning of the driver moni-
tor disappears, the restrained acceler-
ation control will end.

If your vehicle is being driven at 
approximately 50 mph (80 km/h) or 
more and a lane change to the passing 
lane is performed, when the turn signal 
lever is operated and the lane is 
changed, the vehicle will accelerate up 
to the set speed to assist in overtaking.

The system’s recognition of which lane is 
the passing lane may be based solely on 

Curve speed reduction function

Driver Monitor support function 
(if equipped)

Support for lane change

296

4-5. Using the driving support systems

the location of the steering wheel in the 
vehicle (left-hand drive/right-hand drive). If 
the vehicle is driven in a location where the 
passing lane is on the opposite side of that 
where the vehicle was originally sold, the 
vehicle may accelerate when the turn sig-
nal lever is operated away from the passing 
lane. (e.g. The vehicle was manufactured 
for a right-hand traffic location, but is being 
driven in a left-hand traffic location. The 
vehicle may accelerate when the turn sig-
nal lever is operated to the right.)

If your vehicle is being driven at 
approximately 50 mph (80 km/h) or 

more and the lane is changed to that 
with a vehicle traveling slower than 
your vehicle, when the turn signal lever 
is operated the vehicle will gradually 
decelerate to assist in changing lanes.

The settings of Dynamic radar 
cruise control can be changed 
through customize settings. 
(

P.585)

The operating state of Dynamic radar cruise control is indicated.

Changing Dynamic radar cruise 
control settings

Display and system operation state

Indicator

Multi-information display

Situation

White

Vehi-

cle-to-vehicle 

distance set-

ting: Grey

Dynamic radar 

cruise control 

being OFF

Green

Vehi-

cle-to-vehicle 

distance set-

ting: Blue

Set vehicle 

speed: Green

Constant 

speed cruising

297

4-5. Using the driving support systems

4

Driving

Green

Vehi-

cle-to-vehicle 

distance set-

ting: Blue

Set vehicle 

speed: Green

Preceding 

vehicle: White

Follow-up 

cruising

Green

Vehi-

cle-to-vehicle 

distance set-

ting: Orange 

flashing

Set vehicle 

speed: Green

Preceding 

vehicle: 

Orange flash-

ing

Approach 

warning

Green

Vehi-

cle-to-vehicle 

distance set-

ting: Grey

Set vehicle 

speed: White

Preceding 

vehicle: Grey

Accelerating 

with the accel-

erator pedal

Green

Set vehicle 

speed: Green 
in reverse dis-

play

Set vehicle 

speed being 

exceeded

Indicator

Multi-information display

Situation

298

4-5. Using the driving support systems

Meter display

Set vehicle speed
Cruise control indicator

Switches

Vehicles without a head-up display

Driving assist mode select switch
Driving assist switch
“+” switch/“RES” switch
“-” switch
Cancel switch

Cruise control

The vehicle can be driven at a set 
speed even if the accelerator pedal 
is not depressed.

Use the cruise control only on high-
ways and expressways.

WARNING

For safe use

Driving safely is solely the responsibil-

ity of the driver. Therefore, do not 

overly rely on this system. The driver is 

solely responsible for paying attention 

to the vehicle’s surroundings and driv-

ing safely.

Set the speed appropriately according 

to the speed limit, traffic flow, road 

conditions, weather conditions, etc. 

The driver is responsible for confirm-

ing the set speed.

Situations in which cruise control 

should not be used

Do not use the cruise control in the fol-

lowing situations. As the system will not 

be able to provide appropriate control, 

using it may lead to an accident resulting 

in death or serious injury.

On roads with sharp bends

On winding roads

On slippery roads, such as those cov-

ered 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.

When it is necessary to disable the sys-

tem: 

P.244

System Components

A
B

A
B
C
D

E

299

4-5. Using the driving support systems

4

Driving

Vehicles with a head-up display

The function of each switch differs 
depending on the conditions and 
settings.

When a switch is touched, the function of 
each switch is displayed on the head-up 
display. If the head-up display is off, the 
functions will be displayed on the 
multi-information display.

Driving assist mode select switch
Driving assist switch
“RES” switch
“+” switch
“-” switch
Cancel switch

1

Press the driving assist mode select 
switch to select cruise control.

The cruise control indicator will illuminate.

Vehicles without a head-up display

Vehicles with a head-up display

2

Using the accelerator pedal, accel-
erate to the desired vehicle speed 
(approximately 20 mph [30 km/h] 
or more), and press the driving 
assist switch to set the set vehicle 
speed.

The vehicle speed at the moment the 

switch is released will be the set vehicle 

speed.

A

B
C
D

E
F

G

Using the cruise control

Setting the vehicle speed

300

4-5. Using the driving support systems

Vehicles without a head-up display

Vehicles with a head-up display

Adjusting the set vehicle speed 
using the switches

To change the set vehicle speed, press 
the “+” switch or “-” switch until the 
desired speed is displayed.

Vehicles without a head-up display

1

Increase set vehicle speed

2

Decrease set vehicle speed

Vehicles with a head-up display

1

Increase set vehicle speed

2

Decrease set vehicle speed

The set vehicle speed will increase or 
decrease 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: Increases continuously 
while the switch is pressed and held

Increasing the set vehicle speed 
using the accelerator pedal

1

Depress the accelerator pedal to 
accelerate the vehicle to the 
desired vehicle speed.

2

Press the “+” switch.

Vehicles without a head-up display

Adjusting the set vehicle speed

Canceling/resuming control

301

4-5. Using the driving support systems

4

Driving

Vehicles with a head-up display

1

Press the cancel switch or driving 
assist switch to cancel control.

Control will also be canceled if the brake 

pedal is depressed.

2

Press the “RES” switch to resume 
control.

Automatic cancellation of the cruise 

control

In the following situations, the cruise control 

will be canceled automatically:

When the vehicle speed drops approxi-

mately 10 mph (16 km/h) or more below 

the set vehicle speed

When the vehicle speed drops below 

approximately 20 mph (30 km/h)

When the brake control or output restric-

tion control of a driving support system 

operates

(For example: PCS, drive-start control)

When the parking brake has been oper-

ated

Situations in which some or all of the 

functions of the system cannot operate: 

P.250

The operating state of cruise control is indicated.

Display and system operation state

Indicator

Multi-information display

Situation

White

Blank

Cruise control 

being OFF

302

4-5. Using the driving support systems

Green

Set vehicle 

speed: Green

Constant 

speed cruising

Green

Set vehicle 

speed: Green 
in reverse dis-

play

Set vehicle 

speed being 

exceeded

Indicator

Multi-information display

Situation

303

4-5. Using the driving support systems

4

Driving

Operation of this system is separated 
into 4 control states. Through control 
state “Warning phase 1” and “Warning 
phase 2”, the system determines if the 
driver is aware and responsive while 
outputting a warning and controlling 

Emergency Driving Stop 
System

The emergency driving stop system 
is a system which automatically 
decelerates and stops the vehicle 
within its lane if the driver becomes 
unable to continue driving the vehi-
cle, such as if they have suffered a 
medical emergency, etc.

During LTA (Lane Tracing Assist) 
control, if the system does not 
detect driving operations, such as if 
the driver is not holding the steer-
ing wheel, and determines the 
driver is not responsive, the vehicle 
will be decelerated and stopped 
within its current lane to help avoid 
a collision or reduce the impact of a 
collision.

The vehicle will also deceler-
ate/stop during the Traffic Jam 
Assist (if equipped) controls, when 
no driver’s response to the vehicle’s 
warning to hold the steering wheel 
is detected.

WARNING

For safe use

Driving safely is solely the responsibil-

ity of the driver. Pay careful attention to 

the surrounding conditions in order to 

ensure safe driving. The emergency 

driving stop system is designed to pro-

vide support in an emergency where it 

is difficult for the driver to continue 

driving, such as if they have had a med-

ical emergency. It is not designed to 

support driving while drowsy or in 

poor physical health, or inattentive 

driving.

Although the emergency driving stop 

system is designed to decelerate the 

vehicle within its lane to help avoid or 

help reduce the impact of a collision if 

the system determines that it is difficult 

for the driver to continue driving, its 

effectiveness may change according 

to various conditions. Therefore, it may 

not always be able to achieve the same 

level of performance. Also, if the oper-

ating conditions are not met, this func-

tion will not operate.

After the emergency driving stop sys-

tem operates, if driving becomes pos-

sible again, immediately begin driving 

again or, if necessary, park the vehicle 

on the shoulder of the road and set a 

warning reflector and flare to warn 

other drivers of your stopped vehicle.

After this system operates, passengers 

should attend to the driver as neces-

sary and take appropriate hazard pre-

vention measures, such as moving to a 

place where safety can be ensured, 

such as the shoulder of the road or 

behind a guardrail.

This system detects the condition of 

the driver through the operation of the 

steering wheel. This system may oper-

ate if the driver is aware but intention-

ally and continuously does not operate 

the vehicle. Also, the system may not 

operate if it cannot determine that the 

driver is not responsive, such as if they 

are leaning on the steering wheel.

Situations in which the driver monitor 

may not operate properly (vehicles 

with a driver monitor): 

P.250

Summary of the system

304

4-5. Using the driving support systems

the vehicle speed. If the system deter-
mines the driver is not responsive, it will 
operate in control state “Deceleration 
stop phase” and “Stop hold phase” and 
decelerate and stop the vehicle. It will 
then operate continuously in “Stop 
hold phase”.

Operating conditions

This system operates when all of the follow-

ing conditions are met:

When the LTA is on

Or during the Traffic Jam Assist controls (if 
equipped)

When the vehicle speed is approximately 

30 mph (50 km/h) or more

During the Traffic Jam Assist (if equipped) 
controls, the system may operate at below 
30 mph (50 km/h).

Operation cancelation conditions

In the following situations, system operation 

will be canceled:

When LTA control has been canceled 

(the LTA switch has been pressed, etc.)

When the dynamic radar cruise control 

has been canceled

When driver operations are detected 

(the steering wheel is held, the brake 

pedal, accelerator pedal, parking brake, 

hazard light switch, or turn signal lever is 

operated)

When the driving assist switch is pressed 

while in the stop and hold phase

When the power switch has been turned 

from ON to off

Situations in which some or all of the 

functions of the system cannot operate: 

P.250

LTA control when operation is canceled

When emergency driving stop system 

operation is canceled, LTA control may also 

be canceled.

If driving operations are not detected 
after the hands off steering wheel 
warning operates, a buzzer will sound 
intermittently and a message will be 
displayed to warn the driver, and the 
system will judge if the driver is respon-
sive or not. If driving operations, such 
as holding the steering wheel, are not 
performed within a certain amount of 
time, the system will enter warning 
phase 2.
Vehicles with a driver monitor camera: 
Depending on the type of detection of 
the driver’s unresponsiveness, the sys-
tem may skip warning phase 1 and start 
the control of warning phase 2.

After entering warning phase 2, a 
buzzer will sound in short intervals and 
a message will be displayed to warn the 
driver, and the vehicle will slowly decel-
erate. If driving operations, such as 
holding the steering wheel, are not 
performed within a certain amount of 
time, the system will determine that the 
driver is not responsive and enter the 
deceleration stop phase.

The audio system will be muted until the 
driver becomes responsive.
When the vehicle is decelerating, the 
brake lights may illuminate, depending on 
the road conditions, etc.

After entering the deceleration stop 

Warning phase 1

Warning phase 2

Deceleration stop phase

305

4-5. Using the driving support systems

4

Driving

phase, a buzzer will sound continu-
ously and a message will be displayed 
to warn the driver, and the vehicle will 
slowly decelerate and stop. After the 
vehicle stops, the system will enter the 
stop and hold phase.

After the vehicle is stopped, the park-
ing brake will be applied automatically. 
After entering the stop and hold phase, 
the buzzer will continue sounding con-
tinuously and the emergency flashers 
(hazard lights) will flash to warn other 
drivers of the emergency.

Restricted functions after the operation 

is canceled

After shifting to the deceleration stop 

phase, the following functions will not be 

available until the hybrid system is 

re-started even though the emergency driv-

ing stop system is canceled:

LTA

LCA (if equipped)

Traffic Jam Assist (if equipped)

*

: If equipped

Traffic Jam Assist is a system which, 
through confirmation of the conditions 
by the driver, provides lane keeping, 
accelerating/decelerating, stopping, 
and starting off support on some high-
ways and expressways. Also, in an 
emergency, the system can decelerate 
and stop, to help avoid a collision or 
help reduce the impact of a collision.

Precautions for use

P.248

Sensors which detect the surround-
ing conditions (

P.245)

Sensors which detect the driver 
condition (

P.246)

Situations in which some or all of the 

functions of the system cannot operate

P.250

Changes in brake operation sound and 

pedal response

P.250

Situations in which the driver monitor 

may not operate properly

P.250

P.303

Stop hold phase

Traffic Jam Assist

*

Function Outline

Sensors that support the Traffic 
Jam Assist

Emergency Driving Stop System

306

4-5. Using the driving support systems

P.287

The Traffic Jam Assist function, through 
confirmation of the conditions by the 
driver, provides lane keeping, acceler-
ating/decelerating and stopping sup-
port on some highways and 
expressways.
This function is operable when all of the 
operation conditions are met.
When this function is operating, it is 
possible to take your hands off of the 
steering wheel. (

P.308)

Before using the Traffic Jam Assist function, 
familiarize yourself with the content of the 
dynamic radar cruise control and the LTA 
(Lane Tracing Assist).
Make sure that the driver steers the vehicle 
when entering a service area/parking area 
or toll gate, or when changing lanes.

When the operation of Traffic Jam 
Assist is started, the following message 
will be displayed:

“Allow Driver Monitor Camera 
Recording?”

When recording is approved, the system 
records images of the area around the 
driver in certain crash or near crash-like 
situations, such as an SRS airbag being 
deployed or the vehicle hitting an object on 
the road. (

P.9)

Extended resume time of 
Dynamic radar cruise control

Traffic Jam Assist Function

Driver monitor camera record-
ing

WARNING

For safe use

Driving safely is solely the responsibil-

ity of the driver. Do not overly rely on 

this system, and pay careful attention 

to the surrounding conditions in order 

to ensure safe driving.

The Traffic Jam Assist function is not an 

automated driving system.

This function provides the driver with 

information and driving assistance 

according to the road shape and con-

ditions, traffic conditions, and the con-

dition of the driver themself. Always 

pay careful attention to the surround-

ing conditions as use of the system is 

the responsibility of the driver.

Depending on the condition of the sur-

rounding area, the road, or the driver, 

the Traffic Jam Assist function may not 

operate or operation may be sus-

pended. Also, it may not always be 

able to achieve the same level of per-

formance. Read the operating condi-

tions of the function carefully. Do not 

overly rely on this function and always 

drive carefully.

As the recognition performance and 

control performance of the Traffic Jam 

Assist function are limited, driver oper-

ation is necessary to ensure safety 

while the system is operating. Also, the 

steering assist of this system is 

designed to operate only for slow 

steering operations during a traffic 

jam. While this function is operating, 

the lane deviation control function of 

the LDA will not operate. If, for some 

reason, the vehicle is about to deviate 

the lane, it is the driver’s responsibility 

to drive properly.

307

4-5. Using the driving support systems

4

Driving

WARNING

Even if Traffic Jam Assist is operating 

properly, the surrounding conditions 

as recognized by the driver and 

detected by the system may differ. 

Therefore, it is necessary for the driver 

to pay attention, assess risks, and 

ensure safety. Over-reliance on this 

system to drive the vehicle safely may 

lead to an accident resulting in death 

or serious injury.

While the Traffic Jam Assist function is 

operating, as driver operation may 

become necessary, the driver must 

ensure they have clear visibility of their 

surroundings.

In certain situations, a message urging 

the driver to hold the steering wheel 

may be displayed by the Traffic Jam 

Assist function. In this case, hold the 

steering wheel and drive the vehicle 

manually to ensure safety.

The Traffic Jam Assist function cannot 

detect the following objects. Operate 

the steering wheel, accelerator pedal, 

or brake pedal as necessary to avoid a 

collision. As the function will not be 

able to provide appropriate control, 

using it may lead to an accident result-

ing in death or serious injury.

• Objects on the road surface

• Vehicles outside of a lane (such as on 

the shoulder of the road)

• Potholes, cracks, ruts, or other road 

damage

• Road construction zones

• Vehicles running in parallel with your 

vehicle or nearby walls

• Animals

Situations in which Traffic Jam Assist 

Function should not be used

Do not use Traffic Jam Assist Function in 

situations such as the following. As the 

system will not be able to provide appro-

priate control, using it may lead to an 

accident resulting in death or serious 

injury.

When it is necessary to disable the sys-

tem

P.244

Situations in which the sensors may not 

operate properly

P.249

Situations in which the lane may not be 

detected

P.250

Situations in which the function may 

not operate properly

In situations such as the following, the 

Traffic Jam Assist function may not oper-

ate properly. Manually operate the vehi-

cle as necessary.

When a sensor is splashed by water

When the ambient temperature is high 

or low

When a vehicle cuts in front of your 

vehicle

When another lane merges into the 

lane in the same traveling direction as 

your vehicle

When driving in low visibility condition

When the vehicle posture is changing

When the traction on the road surface 

differs greatly between the left and 

right side tires

When driving on an expressway with 

no median strips or when driving on an 

expressway equipped with temporary 

median markers, such as poles.

308

4-5. Using the driving support systems

Operating conditions of the function

This function is operable when all of the fol-

lowing conditions are met:

The system detects lane lines and the 

path of preceding or surrounding vehi-

cles.

The dynamic radar cruise control and the 

lane tracing assist are operating.

The turn signal lever is not being oper-

ated.

The vehicle is not being driven around a 

sharp curve.

The vehicle is being driven in the center 

of a lane.

The driver monitor camera is detecting 

that the driver is facing front of the vehi-

cle.

The vehicle is driving in traffic jam on a 

highway or expressway at approximately 

25 mph (40 km/h) or less. (In some situ-

ations, such as when a traffic jam starts, 

this function may be operational at 

approximately 20 mph [30 km/h] or 

less.)

Vehicles with a connected navigation 

(display audio): Safety Connect is being 

subscribed to.

The driver’s door is closed.

The driver’s seat belt is fastened.

Customized setting of the Traffic Jam 

Assist is not set to off.

Functions and components composing 

the system are in proper condition.

Customized setting of the PCS (Pre-Col-

lision System) is not set to off.

Customized setting of the dynamic radar 

cruise control (re-start time extension) is 

not set to off.

Temporary cancelation of the function

When the operating conditions are no 

longer met, a function may be temporar-

ily canceled. However, when the opera-

tion conditions are met again, operation 

of the function will automatically be 

restored.

If the operating conditions of a function 

are no longer met while the function is 

operating, a buzzer may sound with a dis-

play to indicate that the function has been 

temporarily canceled. If no driver’s 

responses to the indication are detected, 

the driver emergency stop assist function 

may operate. For types of display and 

action to be taken, see the page men-

tioned below. (

P.309)

Driving operations during controlled 

driving

Accelerator pedal

As with normal driving, acceleration can 
be performed by depressing the accelera-
tor pedal. In some situations, such as when 
driving at approximately 6 mph (10 km/h) 
or more and the accelerator pedal is 
depressed, this function will be canceled.

Brake pedal

As with normal driving, deceleration can 
be performed by depressing the brake 
pedal. However, controlled driving will be 
cancelled.

Steering wheel

As with normal driving, the steering wheel 

WARNING

When there is a significant difference 

in speed between your vehicle and the 

other vehicle

The map data has not been updated 

properly.

To prevent malfunction of the radar 

sensors

P.246

To prevent malfunction of the front 

camera

P.247

Front camera installation area on the 

windshield

P.248

309

4-5. Using the driving support systems

4

Driving

can be operated. If the steering wheel is 
operated more than a certain amount, con-
trolled driving will be cancelled.

When a warning message is displayed

“Traffic Jam Asst System Malfunction 

Visit Your Dealer”

The Traffic Jam Assist function may not be 
operating properly.

“Traffic Jam Asst Unavailable Stop Assist 

Activated”

The system temporarily cannot be used as 
the driver emergency stop assist function 
has operated.

The setting of Traffic Jam Assist can 
be enabled/disabled through a cus-
tomize setting. (

P.585)

The setting of driver monitor cam-
era recording can be enabled/dis-
abled through a customize setting. 
(

P.585)

The following displays indicate the operating status of the Traffic Jam Assist func-
tion:

Changing Traffic Jam Assist set-
tings

Displays and system operation

Display

Status

Action to be taken

Traffic Jam Assist function is 
operating

(Grey)

Traffic Jam Assist function is 
about to end

Hold the steering wheel.

(Orange)

Traffic Jam Assist function has 
ended

Hold the steering wheel.

(Red)

Operation of either or both of 
dynamic radar cruise control 
/LTA (Lane Tracing Assist) 
ended

Manually operate the steering 
wheel immediately.

310

4-5. Using the driving support systems

(Yellow)

Indicates that driving actions are 
necessary to cope with cut-in or 
other behavior of surrounding 
vehicles

The driver must operate the 
steering wheel, accelerator 
pedal and brake pedal in accor-
dance with the surrounding envi-
ronment.

Indicates that the recording 
function of the driver monitor 
camera is operational (Blinking 
of this icon indicates that record-
ing is undergoing, and constant 
illumination indicates ready for 
recording.)

Display

Status

Action to be taken

311

4-5. Using the driving support systems

4

Driving

Center display

Turning the Blind Spot Monitor on/off.

Outside rear view mirror indicators

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 (

P.80) 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 
and a buzzer will sound.

Driving assist information indicator

Illuminates when the Blind Spot Monitor is 
turned off. At this time, a message will be 
displayed on the multi-information display.

Outside rear view mirror indicator visi-

bility

In strong sunlight, the outside rear view mir-

ror indicator may be difficult to see.

Buzzer

If the volume setting of the audio system is 

high or the surrounding area is loud, it may 

be difficult to hear the buzzer.

Customization

Some functions can be customized. 

(

P.585)

BSM (Blind Spot Monitor)

The Blind Spot Monitor is a system 
that uses rear side radar sensors 
installed on the inner side of the 
rear bumper on the left and right 
side to assist the driver in confirm-
ing safety when changing lanes.

WARNING

Cautions regarding the use of the sys-

tem

The driver is solely responsible for safe 

driving. Always drive safely, taking 

care to observe your surroundings.

The Blind Spot Monitor is a supple-

mentary function which alerts the 

driver that a vehicle is in a blind spot of 

the outside rear view mirrors or is 

approaching rapidly from behind into a 

blind spot. Do not overly rely on the 

Blind Spot Monitor. As the function 

cannot judge if it is safe to change 

lanes, over reliance could lead to an 

accident resulting in death or serious 

injury.

As the system may not function cor-

rectly under certain conditions, the 

driver’s own visual confirmation of 

safety is necessary.

System components

A

WARNING

To ensure the system can operate 

properly

Blind Spot Monitor sensors are installed 

behind the left and right sides of the rear 

bumper respectively. Observe the fol-

lowing to ensure the Blind Spot Monitor 

can operate correctly.

B

C

312

4-5. Using the driving support systems

The Blind Spot Monitor can be 
enabled/disabled through a customize 
setting. (

P.585)

When the Blind Spot Monitor is off, the 
driving assist information indicator 
(

P.80) will illuminate and a message 

will be displayed on the multi-informa-
tion display.
Each time the power switch is turned to 
ON, the Blind Spot Monitor is enabled.

WARNING

Keep the sensors and the surrounding 

areas on the rear bumper clean at all 

times.

If a sensor or its surrounding area on the 
rear bumper is dirty or covered with 
snow, the Blind Spot Monitor may not 
operate and a warning message will be 
displayed. In this situation, clear off the 
dirt or snow and drive the vehicle with 
the operation conditions of the BSM 
function (

P.314) satisfied for approxi-

mately 10 minutes. If the warning mes-
sage does not disappear, have the 
vehicle inspected by your Lexus dealer.

Do not attach accessories, stickers 

(including transparent stickers), alumi-

num tape, etc. to a sensor or its sur-

rounding area on the rear bumper.

Do not paint the surrounding area of a 

sensor on the rear bumper.

Do not subject a sensor or its sur-

rounding 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 cor-

rectly.

In the following situations, have your 

vehicle inspected by your Lexus 

dealer.

• 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 modify the sensor or surround-

ing area on the rear bumper.

If a sensor or the rear bumper needs to 

be removed/installed or replaced, 

contact your Lexus dealer.

The sensors are likely to be affected by 

paint on the rear bumper. If the rear 

bumper is not repaired correctly, the 

Blind Spot Monitor may not operate 

with a warning message displayed. If 

any paint repair is needed, contact 

your Lexus dealer.

Turning the Blind Spot Monitor 
on/off

313

4-5. Using the driving support systems

4

Driving

Objects that can be detected while driving

The Blind Spot Monitor uses rear side radar sensors to detect the following vehi-
cles traveling in adjacent lanes and advises the driver of the presence of such vehi-
cles via the indicators on the outside rear view mirrors.

Vehicles that are traveling in areas that are not visible using the outside rear 
view mirrors (the blind spots)
Vehicles that are approaching rapidly from behind in areas that are not visible 
using the outside rear view mirrors (the blind spots)

Detection range while driving

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

The range of each detection area is:

Approximately 1.6 ft. (0.5 m) to 11.5 ft. (3.5 m) from either side of the vehicle

*1

Approximately 3.3 ft. (1 m) forward of the rear bumper

*2

Approximately 9.8 ft. (3 m) from the rear bumper

Approximately 9.8 ft. (3 m) to 230 ft. (70 m) from the rear bumper

*3

*1

: The area between the side of the vehicle and 1.6 ft. (0.5 m) from the side of the vehicle 

cannot be detected.

*2

: While the vehicle is to being overtaken, up to approximately 9.8 ft. (3 m) forward of the 

Blind Spot Monitor operation

A

B

A
B
C
D

 

 

 

 

 

 

 

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