Lexus IS500 (2024 year). Manual in english - page 6

 

  Index      Manuals     Lexus IS500 (2024 year). Manual in english

 

Search            copyright infringement  

 

 

 

 

 

 

 

 

 

 

 

Content      ..     4      5      6      7     ..

 

 

 

Lexus IS500 (2024 year). Manual in english - page 6

 

 

182

4-5. Using the driving support systems

lanes.

• ABS, VSC, TRAC and PCS are not oper-

ating.

• TRAC or VSC is not turned off.

• Hands off steering wheel warning is not 

displayed. (

P.183)

Vehicle sway warning function

This function operates when all of the fol-

lowing conditions are met.
• Setting for “Warning” in 

 of the 

multi-information display is set to “On”. 

(

P.76)

• Vehicle speed is approximately 32 mph 

(50 km/h) or more.

• Width of traffic lane is approximately 9.8 

ft. (3 m) or more.

• No system malfunctions are detected. 

(

P.183)

Lane centering function

This function operates when all of the fol-

lowing conditions are met.

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

 of the 

multi-information display are set to “On”. 

(

P.76)

• This function recognizes white (yellow) 

lane lines or the position of a preceding 

vehicle (except when the preceding vehi-

cle is small, such as a motorcycle).

• The dynamic radar cruise control with 

full-speed range is operating in vehi-

cle-to-vehicle distance control mode.

• Width of traffic lane is approximately 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.183)

• Vehicle does not accelerate or deceler-

ate 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 oper-

ating.

• TRAC or VSC is not turned off.

• Hands off steering wheel warning is not 

displayed. (

P.183)

• The vehicle is being driven in the center 

of a lane.

• Steering assist function is not operating.

Temporary cancelation of functions

When operation conditions are no longer 

met, a function may be temporarily can-

celed. However, when the operation con-

ditions are met again, operation of the 

function is automatically restored. 

(

P.181)

If the operation conditions (

P.181) are 

no longer met while the lane centering 

function is operating, the steering wheel 

may vibrate and the buzzer may sound to 

indicate that the function has been tem-

porarily canceled. However, 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 conditions, etc., 

the driver may not feel the function is 

operating or the function may not oper-

ate at all.

The steering control of the function is 

overridden by the driver’s steering wheel 

operation.

Do not attempt to test the operation of 

the steering assist function.

Lane departure alert function

The warning buzzer may be difficult to 

hear due to external noise, audio play-

back, etc. Also, it may be difficult to feel 

steering wheel vibrations due to the road 

conditions, etc.

If the edge of the course

*

 is not clear or 

straight, the lane departure alert function 

may not operate.

It may not be possible for the system to 

determine if there is a danger of a colli-

sion with a vehicle in an adjacent lane.

Do not attempt to test the operation of 

the lane departure alert function.

*

: Boundary between asphalt and the side 

of the road, such as grass, soil, or a curb

183

4-5. Using the driving support systems

4

Driving

Hands off steering wheel warning

In the following situations, a warning mes-

sage urging the driver to hold the steering 

wheel and the symbol shown in the illustra-

tion are displayed on the multi-information 

display 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 warn-

ings.

When the system determines the driver is 

not holding the steering wheel while the 

lane centering function is operating.

If the driver continues to keep their hands 
off of the steering wheel, the buzzer 
sounds, the driver is warned and the func-
tion is temporarily canceled. This warning 
also operates in the same way when the 
driver continuously 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.

When the system determines that the 

driver is driving without holding the steer-

ing wheel while the steering wheel assist 

of the steering assist function is operat-

ing.

If the driver continues to keep their hands 
off of the steering wheel and the steering 
wheel assist is operating, the buzzer 
sounds and the driver is warned. Each time 

the 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 vehi-

cle is swaying while the vehicle sway warn-

ing function is operating, a buzzer sounds 

and a warning message urging the driver to 

rest and the symbol shown in the illustration 

are simultaneously displayed on the 

multi-information display.

Depending on the vehicle and road condi-

tions, the warning may not operate.

Warning message

If the following warning message is dis-

played on the multi-information display and 

the LTA indicator illuminates in orange, fol-

low the appropriate troubleshooting proce-

dure. 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 Lexus 

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 sys-

tem 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. (Cus-

184

4-5. Using the driving support systems

tomizable features:

P.392)

*

: If equipped

The RSA system recognizes specific 
road signs using the front camera 
and/or navigation system (when speed 
limit information 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, per-
forming prohibited actions, etc. 
according to the recognized road 
signs, it notifies the driver through a 
visual notification and notification 
buzzer.

When the front camera recognizes a 

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 replacement for a driver’s own 

vision and awareness. Drive safely by 

always paying careful attention to the 

traffic rules.

Indication on the multi-informa-
tion display

185

4-5. Using the driving support systems

4

Driving

sign and/or information of a sign is 
available from the navigation system, 
the sign will be displayed on the 
multi-information display.

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

P.76)

When a tab other than the driving 
support system information is 
selected, the following types of road 
signs will be displayed (

P.76)

• Speed limit sign
• Do Not Enter sign (when notification is 

necessary)

If signs other than speed limit signs are rec-
ognized, they will be displayed in an over-
lapping stack under the current speed limit 
sign.

The following types of road signs, 

including electronic signs and blinking 
signs, are recognized.

A non-official or a recently introduced traf-
fic sign may not be recognized.

In the following situations, the RSA sys-
tem will notify the driver.

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

When the RSA system recognizes 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 notifica-
tion function may not operate properly.

Setting procedure

1

Press 

 or 

 of the meter control 

switches and select 

.

Supported types of road signs

Speed limit

Do Not Enter

Stop

Yield

Notification function

186

4-5. Using the driving support systems

2

Press 

 or 

 of the meter control 

switches and select 

, then press 

.

3

Press 

 or 

 of the meter control 

switches and select “RSA”, then press 

.

Automatic turn-off of RSA sign display

In the following situations, a displayed 

speed limit sign and/or do not enter sign will 

stop being displayed automatically:

No sign has been recognized for a cer-

tain distance.

The road changes due to a left or right 

turn, etc.

In the following situations, stop and yield 

signs will stop being displayed automati-

cally:

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 function 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. How-

ever, this does not indicate a malfunction.

The front camera is misaligned due to a 

strong impact being applied to the sen-

sor, etc.

Dirt, snow, stickers, etc. are on the wind-

shield 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 camera.

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 adja-

cent lane just before merging.

Stickers are attached to the rear of the 

preceding vehicle.

A sign resembling a system compatible 

sign is recognized.

Side road speed signs may be detected 

and displayed (if positioned in sight of the 

front camera) while the vehicle is travel-

ing on the main road.

Roundabout exit road speed signs may 

be detected and displayed (if positioned 

in sight of the front camera) while travel-

ing on a roundabout.

The front of the vehicle is raised or low-

ered due to the carried load.

The surrounding brightness is not suffi-

cient or changes suddenly.

When a sign intended for trucks, etc. is 

recognized.

The navigation system map data is out-

dated.

The navigation system is not operating.

The speed information displayed on the 

meter and on the navigation 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 displayed on the 

multi-information display, the same sign dis-

plays again when the engine switch is 

turned to IGNITION ON mode.

If “RSA Malfunction Visit Your Dealer” 

is shown

The system may be malfunctioning. Have 

the vehicle inspected by your Lexus dealer.

Customization

Some functions can be customized. (Cus-

tomizable features:

P.392)

187

4-5. Using the driving support systems

4

Driving

Vehicle-to-vehicle distance switch
Multi-information display
Set speed
Indicators

Cruise control switch

Dynamic radar cruise con-
trol with full-speed range

In vehicle-to-vehicle distance con-
trol mode, the vehicle automati-
cally accelerates, decelerates and 
stops to match the speed changes 
of the preceding vehicle even if the 
accelerator pedal is not depressed. 
In constant speed control mode, 
the vehicle runs at a fixed speed.

Use the dynamic radar cruise con-
trol with full-speed range on free-
ways and highways.

Vehicle-to-vehicle distance con-
trol mode (

P.189)

Constant speed control mode 
(

P.194)

System Components

A

B

C

D

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 surround-

ings.

The dynamic radar cruise control with 

full-speed range provides driving 

assistance to reduce the driver’s bur-

den. However, there are limitations to 

the assistance provided.

Read the following conditions care-

fully. Do not overly rely on this system 

and always drive carefully.

• When the sensor may not be correctly 

detecting the vehicle ahead: 

P.196

• Conditions under which the vehi-

cle-to-vehicle distance control mode 

may not function correctly: 

P.197

Set the speed appropriately depend-

ing on the speed limit, traffic flow, road 

conditions, weather conditions, etc. 

The driver is responsible for checking 

the set speed.

Even when the system is functioning 

normally, the condition of the preced-

ing vehicle as detected by the system 

may differ from the condition 

observed by the driver. Therefore, the 

driver must always remain alert, assess 

the danger of each situation and drive 

safely. Relying solely on this system or 

assuming the system ensures safety 

while driving can lead to an accident, 

resulting in death or serious injury.

Switch the dynamic radar cruise con-

trol with full-speed range setting to off, 

using the “ON/OFF” button when not 

in use.

E

188

4-5. Using the driving support systems

Cautions regarding the driving assist 

systems

Observe the following precautions, 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 follow-

ing 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 vehi-

cle and a designated vehicle traveling 

ahead. It is not a mechanism that allows 

careless or inattentive driving, 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 vehicle’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 vigi-

lant 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 func-

tions which will prevent or avoid colli-

sions with vehicles ahead of your vehicle. 

Therefore, if there is ever any possibility 

of danger, the driver must take immedi-

ate and direct control of the vehicle and 

act appropriately in order to ensure the 

safety of all involved.

WARNING

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 follow-

ing situations. Doing so may result in 

inappropriate speed control and could 

cause an accident resulting in death or 

serious injury.

Roads where there are pedestrians, 

cyclists, etc.

In heavy traffic

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.

At entrances to freeways and highways

When weather conditions are bad 

enough that they may prevent the sen-

sors from detecting correctly (fog, 

snow, sandstorm, heavy rain, etc.)

When there is rain, snow, etc. on the 

front surface of the radar or front cam-

era

In traffic conditions that require fre-

quent repeated acceleration and 

deceleration

During emergency towing

When an approach warning buzzer is 

heard often

189

4-5. Using the driving support systems

4

Driving

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 dis-
tance, and operates to maintain a suitable following distance from the vehicle 
ahead. The desired vehicle-to-vehicle 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 necessary, 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 sufficiently 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 sys-
tem control). After the vehicle ahead starts off, pushing the cruise control lever up 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 overtaking lane while 
driving at 50 mph (80 km/h) or more, the vehicle will accelerate to help to overtake a 
passing vehicle.
The system’s identification of what is an overtaking lane may be determined solely based on 

Driving in vehicle-to-vehicle distance control mode

A

B

190

4-5. Using the driving support systems

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.

1

Press the “ON/OFF” button to acti-
vate the cruise control.

Dynamic radar cruise control indicator will 

come on and a message will be displayed 

on the multi-information display. Press the 

button again to deactivate the cruise con-

trol.
If the “ON/OFF” button is pressed and 

held for 1.5 seconds or more, the system 

turns on in constant speed control mode. 

(

P.194)

2

Accelerate or decelerate, with 
accelerator pedal operation, to the 
desired vehicle speed (at or above 
approximately 20 mph [30 km/h]) 

and push the lever down to set the 
speed.

Cruise control “SET” indicator will come 

on.
The vehicle speed at the moment the lever 

is released becomes the set speed.

Adjusting the set speed by the lever

To change the set speed, operate the 
lever until the desired set speed is dis-
played.

C

Setting the vehicle speed (vehi-
cle-to-vehicle distance control 
mode)

Adjusting the set speed

191

4-5. Using the driving support systems

4

Driving

1

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

2

Decreases the speed

Fine adjustment: Momentarily move the 
lever in the desired direction.
Large adjustment: Hold the lever up or 
down to change the speed, and release 
when the desired speed is reached.

In the vehicle-to-vehicle distance con-
trol 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)

*1

 or 1 

km/h (0.6 mph)

*2

 each time the lever is 

operated 
Large adjustment: Increases or decreases 
in 1 mph (1.6 km/h)

*1

 or 1 km/h (0.6 mph)

*2

 

increments for as long as the lever is held

For Canada, Guam and Puerto Rico

Fine adjustment: By 1 mph (1.6 km/h)

*1

 or 1 

km/h (0.6 mph)

*2

 each time the lever is 

operated 
Large adjustment: Increases or decreases 
in 5 mph (8 km/h)

*1

 or 5 km/h (3.1 mph)

*2

 

increments for as long as the lever is held

In the constant speed control mode 
(

P.194), the set speed will be 

increased or decreased as follows:

Fine adjustment: By 1 mph (1.6 km/h)

*1

 or 1 

km/h (0.6 mph)

*2

 each time the lever is 

operated
Large adjustment: The speed will continue 
to change while the lever is held.

*1

: When the set speed is shown in “MPH”

*2

: When the set speed is shown in “km/h”

Increasing the set speed by the 
accelerator pedal

1

Accelerate with accelerator pedal 
operation to the desired vehicle 
speed

2

Push the lever down

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

1

Long

2

Medium

3

Short

If a vehicle is running ahead of you, the pre-
ceding vehicle mark 

 will also be dis-

played.

Changing the vehicle-to-vehicle 
distance (vehicle-to-vehicle dis-
tance control mode)

A

192

4-5. Using the driving support systems

Select a distance from the table below. 
Note that the distances shown corre-
spond to a vehicle speed of 50 mph 
(80 km/h). Vehicle-to-vehicle distance 
increases/decreases in accordance 
with vehicle speed. When the vehicle is 
stopped by system control, the vehicle 
stops at a certain vehicle-to-vehicle 
distance depending on the situation.

After the vehicle ahead of you starts 
off, push the lever up.
Your vehicle will also resume follow-up 
cruising if the accelerator pedal is 
depressed after the vehicle ahead of 
you starts off.

1

Pulling the lever toward you can-
cels the speed control.

The speed control is also canceled when 
the brake pedal is depressed. (When the 
vehicle has been stopped by system con-
trol, depressing the brake pedal does not 
cancel the setting.)

2

Pushing the lever up resumes the 
cruise control and returns vehicle 
speed to the set speed.

When your vehicle is too close to a 
vehicle ahead, and sufficient automatic 
deceleration via the cruise control is 
not possible, the display will flash and 
the buzzer will sound to alert the driver. 

Vehicle-to-vehicle distance set-
tings (vehicle-to-vehicle dis-
tance 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 system control (vehi-
cle-to-vehicle distance control 
mode)

Canceling and resuming the 
speed control

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

193

4-5. Using the driving support systems

4

Driving

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 vehi-
cle-to-vehicle distance.

Warnings may not occur when

In the following instances, warnings 
may not occur even when the vehi-
cle-to-vehicle distance is small.

When the speed of the preceding 
vehicle matches or exceeds your 
vehicle speed

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

Immediately after the cruise control 
speed was set

When depressing the accelerator 
pedal

While driving in vehicle-to-vehicle dis-
tance control mode, this function will 
reduce the vehicle speed, if it is deter-
mined to be necessary.

Function operation

When the steering wheel begins to be 
turned, the vehicle speed will begin 
being reduced. When the steering 

wheel is returned to the center posi-
tion, the vehicle speed reduction will 
end.
Depending on the situation, the vehicle 
speed will then return to the vehi-
cle-to-vehicle distance control mode 
set speed.
In situations where vehicle-to-vehicle 
distance control needs to operate, 
such as when a preceding vehicle cuts 
in front of your vehicle, the curve speed 
reduction function will be canceled.

Operation display

Displayed when the vehicle speed is 
being reduced.

When the vehicle speed reduction ends, 
the display will disappear.

Changing the settings of the curve 
speed reduction function

The curve speed reduction function 
can be enabled/disabled and the vehi-
cle speed reduction strength can be 
adjusted on 

 (

P.76) of the 

multi-information display.

The setting will change each time the 

 meter control switch is pressed.

Curve speed reduction function

194

4-5. Using the driving support systems

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

1

With the cruise control off, press 
and hold the “ON/OFF” button for 
1.5 seconds or more.

Immediately after the “ON/OFF” button is 

pressed, the dynamic radar cruise control 

indicator will come on. Afterwards, it 

switches to the cruise control indicator.
Switching to constant speed control mode 

is only possible when operating the lever 

with the cruise control off.

2

Accelerate or decelerate, with 
accelerator pedal operation, to the 
desired vehicle speed (at or above 
approximately 20 mph [30 km/h]) 
and push the lever down to set the 
speed.

Cruise control “SET” indicator will come 

on.
The vehicle speed at the moment the lever 

is released becomes the set speed.
Adjusting the speed setting: 

P.191

Canceling and resuming the speed setting: 

P.193

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 approximately 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 operating the 

accelerator pedal. After accelerating, the 

set speed resumes. However, during vehi-

cle-to-vehicle distance control mode, the 

vehicle speed may decrease below the set 

speed in order to maintain the distance to 

the preceding vehicle.

When the vehicle stops while follow-up 

cruising

Pushing the lever up while the vehicle 

ahead stops will resume follow-up cruis-

ing if the vehicle ahead starts off within 

approximately 3 seconds after the lever 

is pushed up.

If the vehicle ahead starts off within 3 sec-

onds 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 situ-

ations.

VSC is activated.

TRAC is activated for a period of time.

Selecting constant speed con-
trol mode

195

4-5. Using the driving support systems

4

Driving

When the VSC or TRAC system is 

turned off.

The sensor cannot detect correctly 

because it is covered in some way.

When the brake control or output restric-

tion control of a driving support 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 con-

trol:

• 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 mal-

function in the system. Contact your Lexus 

dealer.

Automatic cancelation of constant 

speed control mode

Constant speed control mode is automati-

cally canceled in the following situations:

Actual vehicle speed is more than 

approximately 10 mph (16 km/h) below 

the set vehicle speed.

Actual vehicle speed falls below approxi-

mately 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 restric-

tion control of a driving support system 

operates.

(For example: Pre-Collision System, 

Drive-Start Control)

The parking brake is operated.

If constant speed control mode is automati-

cally canceled for any reasons other than 

the above, there may be a malfunction in the 

system. Contact your Lexus dealer.

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

Brake operation

A brake operation sound may be heard and 

the brake pedal response may change, but 

these are not malfunctions.

Warning messages and buzzers for 

dynamic radar cruise control with 

full-speed range

Warning messages and buzzers are used to 

indicate a system malfunction or to inform 

the driver of the need for caution while driv-

ing. If a warning message is shown on the 

multi-information display, read the message 

and follow the instructions. (

P.163, 342)

When the sensor may not be correctly 

detecting the vehicle ahead

In the case of the following and depending 

on the conditions, operate the brake pedal 

when deceleration of the system is insuffi-

cient or operate the accelerator pedal 

when acceleration is required.
As the sensor may not be able to correctly 

detect these types of vehicles, the approach 

warning (

P.193) 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.)

196

4-5. Using the driving support systems

Motorcycles traveling in the same lane

When water or snow thrown up by the 

surrounding vehicles hinders the detect-

ing 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 vehi-

cle-to-vehicle distance control mode 

may not function correctly

In the case of the following conditions, 

operate the brake pedal (or accelerator 

pedal, depending on the situation) as nec-

essary.
As the sensor may not be able to 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 unstable

When the vehicle ahead of you deceler-

ates suddenly

When driving on a road surrounded by a 

structure, such as in a tunnel or on a 

bridge

While the vehicle speed is decreasing to 

the set speed after the vehicle acceler-

ates by depressing the accelerator pedal

Situations in which the curve speed 

reduction function may not operate 

properly

In situations such as the following, the curve 

speed reduction function may not operate 

properly:

When the vehicle is being driven around 

a curve on an incline/decline

When the course of the vehicle differs 

from the shape of the curve

When the vehicle speed is excessively 

high when entering a curve

When the steering wheel is suddenly 

operated

197

4-5. Using the driving support systems

4

Driving

Meter control switches

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 on the detected side will illumi-
nate. If the turn signal lever is operated 
toward the detected side, the outside rear 
view mirror indicator flashes.

Outside rear view mirror indicator visi-

bility

In strong sunlight, the outside rear view mir-

ror indicator may be difficult to see.

When “Blind Spot Monitor Unavailable” 

is shown on the multi-information dis-

play

Ice, snow, mud, etc., may be attached to the 

rear bumper around the sensors. (

P.198) 

The system should return to normal opera-

tion after removing the ice, snow, mud, etc. 

from the rear bumper. Additionally, the sen-

sors may not operate normally when driving 

in extremely hot or cold environments.

Customization

Some functions can be customized. 

(

P.392)

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 supplemen-

tary function which alerts the driver that a 

vehicle is in a blind spot of the outside 

rear view mirrors or is approaching rap-

idly 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 correctly 

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

198

4-5. Using the driving support systems

Use the meter control switches to turn 
on/off the function.

1

Press 

 or 

 to select 

.

2

Press 

 or 

 to select 

 and 

then press 

.

When the BSM function is disabled, the 
BSM OFF indicator (

P.66) illuminates 

on the multi-information display. (Each 
time the engine switch is turned off then 
changed to IGNITION ON mode, the 
BSM function will be enabled automati-
cally.)

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 
(

P.198) will be displayed. In this situa-

tion, clear off the dirt or snow and drive 
the vehicle with the operation conditions 
of the BSM function (

P.201) satisfied 

for approximately 10 minutes. If the 
warning message does not disappear, 
have the vehicle inspected by your Lexus 
dealer.

Do not attach stickers to the sensor or 

surrounding area 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.

Do not paint the rear bumper any 

color other than an official Lexus color.

Turning the Blind Spot Monitor 
on/off

199

4-5. Using the driving support systems

4

Driving

Vehicles that can be detected by the Blind Spot Monitor

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)

The Blind Spot Monitor detection areas

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

Approximately 9.8 ft. (3 m) to 197 ft. (60 m) from the rear bumper

*2

*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

: The greater the difference in speed between your vehicle and the detected vehicle is, 

Blind Spot Monitor operation

A

B

A
B
C
D

200

4-5. Using the driving support systems

the farther away the vehicle will be detected, causing the outside rear view mirror indi-
cator to illuminate or flash.

The Blind Spot Monitor is operational 

when

The Blind Spot Monitor is operational when 

all of the following conditions are met:

The Blind Spot Monitor is on.

The shift lever is in a position other than R.

The vehicle speed is greater than approx-

imately 10 mph (16 km/h).

The Blind Spot Monitor will detect a 

vehicle when

The Blind Spot Monitor will detect a vehicle 

present in the detection area in the follow-

ing situations:

A vehicle in an adjacent lane overtakes 

your vehicle.

You overtake a vehicle in an adjacent lane 

slowly.

Another vehicle enters the detection 

area when it changes lanes.

Conditions under which the system will 

not detect a vehicle

The Blind Spot Monitor is not designed to 

detect the following types of vehicles and/or 

objects:

Small motorcycles, bicycles, pedestrians, 
etc.

*

Vehicles traveling in the opposite direc-

tion

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

*

Following vehicles that are in the same 
lane

*

Vehicles traveling 2 lanes away from your 
vehicle

*

Vehicles which are being overtaken rap-
idly by your vehicle

*

*

: Depending on the conditions, detection 

of a vehicle and/or object may occur.

Conditions under which the system may 

not function correctly

The Blind Spot Monitor may not detect 

vehicles correctly in the following situa-

tions:

• When the sensor is misaligned due to a 

strong impact to the sensor or its sur-

rounding area

• When mud, snow, ice, a sticker, etc. is 

covering the sensor or surrounding area 

on the rear bumper

• When driving on a road surface that is 

wet with standing water during bad 

weather, such as heavy rain, snow, or fog

• When multiple vehicles are approaching 

with only a small gap between each vehi-

cle

• When the distance between your vehicle 

and a following vehicle is short

• When there is a significant difference in 

speed between your vehicle and the vehi-

cle that enters the detection area

• When the difference in speed between 

your vehicle and another vehicle is 

changing

• When a vehicle enters a detection area 

traveling at about the same speed as your 

vehicle

• As your vehicle starts from a stop, a vehi-

cle remains in the detection area

• When driving up and down consecutive 

steep inclines, such as hills, dips in the 

road, etc.

• When driving on roads with sharp bends, 

consecutive curves, or uneven surfaces

• When vehicle lanes are wide, or when 

driving on the edge of a lane, and the 

vehicle in an adjacent lane is far away 

from your vehicle

• When an accessory (such as a bicycle 

carrier) is installed to the rear of the vehi-

cle

• When there is a significant difference in 

height between your vehicle and the 

vehicle that enters the detection area

• Immediately after the Blind Spot Monitor 

is turned on

Instances of the Blind Spot Monitor 

unnecessarily detecting a vehicle and/or 

object may increase in the following situ-

201

4-5. Using the driving support systems

4

Driving

ations:

• When the sensor is misaligned due to a 

strong impact to the sensor or its sur-

rounding area

• When the distance between your vehicle 

and a guardrail, wall, etc. that enters the 

detection area is short

• When driving up and down consecutive 

steep inclines, such as hills, dips in the 

road, etc.

• When vehicle lanes are narrow, or when 

driving on the edge of a lane, and a vehi-

cle traveling in a lane other than the adja-

cent lanes enters the detection area

• When driving on roads with sharp bends, 

consecutive curves, or uneven surfaces

• When the tires are slipping or spinning

• When the distance between your vehicle 

and a following vehicle is short

• When an accessory (such as a bicycle 

carrier) is installed to the rear of the vehi-

cle

Intuitive parking assist (if 
equipped)

P.204

RCTA (Rear Cross Traffic Alert) 
function

P.211

PKSA (Parking Support 
Alert)

The Parking Support Alert system 
consists of the following functions 
that operate when driving at a low 
speed or backing up, such as when 
parking. When the system deter-
mines that the possibility of a colli-
sion with a detected object, such as 
a wall is high, a warning operates to 
urge the driver to take evasive 
action.

PKSA (Parking Support Alert) 
system

202

4-5. Using the driving support systems

Adjusting the buzzer volume

The buzzer volume can be adjusted on 
the multi-information display. The vol-
ume of buzzers for the intuitive parking 
assist and RCTA function will be 
adjusted simultaneously.
Use the meter control switches to 
change settings. (

P.77)

Vehicles without the Intuitive park-
ing assist

1

Press 

 or 

 to select 

.

2

Press 

 or 

 to select “RCTA” 

and then press 

.

3

Press 

 or 

 to select 

 and 

then press 

.

Each time the switch is pressed, the volume 

level will change between 1, 2, and 3.

Vehicles with the Intuitive parking 
assist

1

Press 

 or 

 to select 

.

2

Press 

 or 

 to select “PKSA” 

and then press 

.

3

Press 

 or 

 to select 

 and 

then press 

.

Each time the switch is pressed, the volume 

level will change between 1, 2, and 3.

Muting a buzzer temporarily (vehi-
cles with the Intuitive parking 
assist)

A mute button will be displayed on the 
multi-information display when an 
object is detected. To mute the buzzer, 

press . 
The buzzers for the intuitive parking 
assist and RCTA function will be muted 
simultaneously.
Mute will be canceled automatically in 
the following situations:

When the shift lever is changed.

When the vehicle speed exceeds a 
certain speed.

When there is malfunction in a sen-
sor or the system is temporarily 
unavailable.

When the operating function is dis-
abled manually.

When the engine switch is turned 
off.

Setting the buzzer volume

203

4-5. Using the driving support systems

4

Driving

*

: If  equipped

Types of sensors

Except F SPORT models

Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors

F SPORT models

Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors

Display

When the sensors detect an object, 
such as a wall, a graphic is shown on 
the multi-information display and Cen-
ter Display depending on the position 
and distance to the object.

Multi-information display

Front corner sensor detection
Front center sensor detection
Rear corner sensor detection
Rear center sensor detection

Center Display (vehicles with a 
Lexus parking assist monitor)

A graphic is shown when the Lexus park-

Intuitive parking assist

*

The distance from your vehicle to 
objects, such as a wall, when paral-
lel parking or maneuvering into a 
garage is measured by the sensors 
and communicated via the 
multi-information display, Center 
Display and a buzzer. Always check 
the surrounding area when using 
this system.

System components

A
B
C
D

A
B
C
D

A
B
C
D

204

4-5. Using the driving support systems

ing assist monitor is displayed.
A simplified image is displayed on the 
Center Display when an object is detected.

Center Display (vehicles with a Pan-
oramic view monitor)

When an object is detected, a graphic will 
be displayed on the panoramic view moni-
tor.

Use the meter control switches to 
enable/disable the intuitive parking 
assist. (

P.77)

1

Press 

 or 

 to select 

.

2

Press 

 or 

 to select “PKSA” 

and then press 

.

3

Press 

 or 

 to select 

 and 

then press 

.

When the intuitive parking assist func-

tion is disabled, the intuitive parking 
assist OFF indicator (

P.66) illumi-

nates on the multi-information display .
When the intuitive parking assist func-
tion is turned on or off, operation of the 
intuitive parking assist function contin-
ues in the same condition the next time 
the engine is started.

Turning intuitive parking assist 
on/off

WARNING

Cautions regarding the use of the sys-

tem

There is a limit to the degree of recogni-

tion 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’ surroundings and driving 

safely.

To ensure the system can operate 

properly

Observe the following precautions. 

Failing to do so may result in the vehicle 

being unable to be driven safely and pos-

sibly cause an accident.

Do not damage the sensors, and 

always keep them clean.

Do not attach a sticker or install an 

electronic component, such as a back-

lit license plate (especially fluorescent 

type), fog lights, fender pole or wire-

less antenna near a radar sensor.

Do not subject the surrounding area of 

the sensor to a strong impact. If sub-

jected to an impact, have the vehicle 

inspected by your Lexus dealer. If the 

front or rear bumper needs to be 

removed/installed or replaced, con-

tact your Lexus dealer.

Do not modify, disassemble or paint 

the sensors.

Do not attach a license plate cover.

Keep your tires properly inflated.

205

4-5. Using the driving support systems

4

Driving

The system can be operated when

The engine switch is in IGNITION ON 

mode.

Intuitive parking assist function is on.

The vehicle speed is less than about 6 

mph (10 km/h).

A shift lever other than P.

Setting the buzzer volume

The buzzer volume can be adjusted on the 

multi-information display. (

P.203)

If “Parking Assist Unavailable Clean 

Parking Assist Sensor” is displayed on 

the multi-information display

A sensor may be covered with ice, snow, 

dirt, etc. Remove the ice, snow, dirt, etc., 

from the sensor to return the system to nor-

mal.
Also, due to ice forming on a sensor at low 

temperatures, a warning message may be 

displayed or the sensor may not be able to 

detect an object. Once the ice melts, the 

system will return to normal.

If “Parking Assist Unavailable” is dis-

played on the multi-information display

Water may be continuously flowing over 

the sensor surface, such as in a heavy 

rain. When the system determines that it 

is normal, the system will return to nor-

mal.

Initialization may not have been per-

formed after a battery terminal was dis-

connected and reconnected. Initialize the 

system. (

P.206)

If this message continues to be displayed 

even after initialization, have the vehicle 

inspected by your Lexus dealer.

If a battery terminal has been discon-

nected and reconnected

The system needs to be initialized. To initial-

ize the system, drive the vehicle straight 

ahead for 5 seconds or more at a speed of 

approximately 22 mph (35 km/h) or more.

Sensor detection information

The sensor's detection areas are limited 

to the areas around the vehicle front and 

rear bumpers.

The following situations may occur 

during use.

• Depending on the shape of the object 

and other factors, the detection distance 

may shorten, or detection may be impos-

sible.

• There will be a short delay between 

object detection and display. Even at low 

speeds, there is a possibility that the 

object will come within the sensor’s 

detection areas before the display is 

shown and the warning beep sounds.

• It might be difficult to hear the buzzer due 

to the volume of the audio system or air 

flow noise of the air conditioning system.

• It may be difficult to hear the buzzer if 

buzzers for other systems are sounding.

Objects which the system may not be 

properly detected

The shape of the object may prevent the 

sensor from detecting it. Pay particular 

attention to the following objects:

WARNING

When to disable the function

In the following situations, disable the 

function as it may operate even though 

there is no possibility of a collision.

Failing to observe the warnings above.

A non-genuine Lexus suspension 

(lowered suspension, etc.) is installed.

Notes when washing the vehicle

Do not apply intensive bursts of water or 

steam to the sensor area.

Doing so may result in the sensor mal-

functioning.

When using a high pressure washer to 

wash the vehicle, do not spray the sen-

sors directly, as doing so may cause a 

sensor to malfunction.

When using steam to clean the vehicle, 

do not direct steam too close to the 

sensors as doing so may cause a sen-

sor to malfunction.

206

4-5. Using the driving support systems

Wires, fences, ropes, etc.

Cotton, snow and other materials that 

absorb sound waves

Sharply-angled objects

Low objects

Tall objects with upper sections project-

ing outwards in the direction of your vehi-

cle

People may not be detected if they are 

wearing certain types of clothing.

Situations in which the system may not 

operate properly

Certain vehicle conditions and the sur-

rounding environment may affect the ability 

of a sensor to correctly detect objects. Par-

ticular instances where this may occur are 

listed below.

There is dirt, snow or ice on a sensor. 

(Cleaning the sensors will resolve this 

problem.)

A sensor is frozen. (Thawing the area will 

resolve this problem.) 

In especially cold weather, if a sensor is 

frozen the sensor display may be dis-

played abnormally, or objects, such as a 

wall, may not be detected.

When a sensor or the area around a sen-

sor is extremely hot or cold.

On an extremely bumpy road, on an 

incline, on gravel, or on grass.

When vehicle horns, vehicle detectors, 

motorcycle engines, air brakes of large 

vehicles, the clearance sonar of other 

vehicles or other devices which produce 

ultrasonic waves are near the vehicle

A sensor is coated with a sheet of spray 

or heavy rain.

If objects draw too close to the sensor.

When a pedestrian is wearing clothing 

that does not reflect ultrasonic waves (ex. 

skirts with gathers or frills).

When objects that are not perpendicular 

to the ground, not perpendicular to the 

vehicle traveling direction, uneven, or 

waving are in the detection range.

Strong wind is blowing

When driving in inclement weather such 

as fog, snow or a sandstorm

When an object that cannot be detected 

is between the vehicle and a detected 

object

If an object such as a vehicle, motorcycle, 

bicycle or pedestrian cuts in front of the 

vehicle or runs out from the side of the 

vehicle

If the orientation of a sensor has been 

changed due to a collision or other 

impact

When equipment that may obstruct a 

sensor is installed, such as a towing eye-

let, bumper protector (an additional trim 

strip, etc.), bicycle carrier, or snow plow

If the front of the vehicle is raised or low-

ered due to the carried load

If the vehicle cannot be driven in a stable 

manner, such as when the vehicle has 

been in an accident or is malfunctioning

When a tire chains, compact spare tire or 

an emergency tire puncture repair kit is 

used

Situations in which the system may 

operate even if there is no possibility of a 

collision

In some situations, such as the following, the 

system may operate even though there is no 

possibility of a collision.

When driving on a narrow road

When driving toward a banner, flag, 

207

4-5. Using the driving support systems

4

Driving

low-hanging branch or boom barrier 

(such as those used at railroad crossings, 

toll gates and parking lots)

When there is a rut or hole in the surface 

of the road

When driving on a metal cover (grating), 

such as those used for drainage ditches

When driving up or down a steep slope

If a sensor is hit by a large amount of 

water, such as when driving on a flooded 

road

There is dirt, snow, water drops or ice on 

a sensor. (Cleaning the sensors will 

resolve this problem.)

A sensor is coated with a sheet of spray 

or heavy rain

When driving in inclement weather such 

as fog, snow or a sandstorm

When strong winds are blowing

When vehicle horns, vehicle detectors, 

motorcycle engines, air brakes of large 

vehicles, the clearance sonar of other 

vehicles or other devices which produce 

ultrasonic waves are near the vehicle

If the front of the vehicle is raised or low-

ered due to the carried load

If the orientation of a sensor has been 

changed due to a collision or other 

impact

The vehicle is approaching a tall or 

curved curb

Driving close to columns (H-shaped steel 

beams, etc.) in multi-story parking 

garages, construction sites, etc.

If the vehicle cannot be driven in a stable 

manner, such as when the vehicle has 

been in an accident or is malfunctioning

On an extremely bumpy road, on an 

incline, on gravel, or on grass

When a tire chains, compact spare tire or 

an emergency tire puncture repair kit is 

used

Detection range of the sensors

Approximately 3.3 ft. (100 cm)
Approximately 4.9 ft. (150 cm)
Approximately 2.0 ft. (60 cm)

The diagram shows the detection range of 
the sensors. Note that the sensors cannot 
detect objects that are extremely close to 
the vehicle.
The range of the sensors may change 
depending on the shape of the object, etc.

Sensor detection display, object 
distance

A
B
C

208

4-5. Using the driving support systems

Multi-information display and Center Display

When an object is detected by a sensor, the approximate distance to the object will 
be displayed on the multi-information display and Center Display. (As the distance 
to the object becomes short, the distance segments may blink.)

Approximate distance to object: 4.9 ft. (150 cm) to 2.0 ft. (60 cm)

*

(Rear center 

sensor)

*

: Automatic buzzer mute function is enabled. (

P.210)

Approximate distance to object: 3.3 ft. (100 cm) to 2.0 ft. (60 cm)

*

 (Front cen-

ter sensor)

*

: Automatic buzzer mute function is enabled. (

P.210)

Approximate distance to object: 2.0 ft. (60 cm) to 1.5 ft. (45 cm)

*

*

: Automatic buzzer mute function is enabled. (

P.210)

Approximate distance to object: 1.5 ft. (45 cm) to 1.0 ft. (30 cm)

*

*

: Automatic buzzer mute function is enabled. (

P.210)

Multi-information display

Center Display

Multi-information display

Center Display

Multi-information display

Center Display

Multi-information display

Center Display

209

4-5. Using the driving support systems

4

Driving

Approximate distance to object: 1.0 ft. (30 cm) to 0.5 ft. (15 cm)

*1

*1

: Automatic buzzer mute function is disabled. (

P.210)

*2

: The distance segments will blink slowly.

Approximate distance to object: Less than 0.5 ft. (15 cm)

*1

*1

: Automatic buzzer mute function is disabled. (

P.210)

*2

: The distance segments will blink rapidly.

Buzzer operation and distance to 
an object

A buzzer sounds when the sensors are 
operating.

The buzzer beeps faster as the vehi-
cle approaches an object. When the 
vehicle comes within the following 
distance of the object, the buzzer 
sounds continuously:

Approximately 1.0 ft. (30 cm)

When 2 or more objects are 
detected simultaneously, the buzzer 
sounds for the nearest object. If one 
or more objects come within 
approximately 1.0 ft. (30 cm) of the 
vehicle, the buzzer will repeat a long 
tone, followed by fast beeps.

Automatic buzzer mute function: 
After a buzzer begins sounding, if 

the distance between the vehicle 
and the detected object does not 
become shorter, the buzzer will be 
muted automatically. (However, if 
the distance between the vehicle 
and object is 1.0 ft. (30 cm) or less, 
this function will not operate.)

The buzzer sounds volume can be 
adjusted. (

P.203)

Multi-information display

*2

Center Display

*2

Multi-information display

*2

Center Display

*2

210

4-5. Using the driving support systems

Meter control switches

The RCTA function can be turned on/off.
When the RCTA function is disabled, the 
RCTA OFF indicator illuminates.

Outside rear view mirror indicators

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.

Center Display

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

P.213) for the detected 

side will be displayed on the Center Dis-
play. This illustration shows an example of a 
vehicle approaching from both sides of the 
vehicle.

RCTA buzzer

If a vehicle approaching from the right or 
left at the rear of the vehicle is detected, a 
buzzer will sound. The buzzer also sounds 
for approximately 1 second immediately 

RCTA (Rear Cross Traffic 
Alert) function

The RCTA function uses the BSM 
rear side radar sensors installed on 
the inner side of the rear bumper. 
This function is intended to assist 
the driver in checking areas that 
are not easily visible when backing 
up.

WARNING

Cautions regarding the use of the 

function

There is a limit to the degree of recogni-

tion 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. (

P.198)

To ensure the system can operate 

properly

P.198

System components

A

B

C

D

211

4-5. Using the driving support systems

4

Driving

after the RCTA function is turned on.

Use the meter control switches to 
enable/disable the RCTA function. 
(

P.77)

Vehicles without the Intuitive park-
ing assist

1

Press 

 or 

 to select 

.

2

Press 

 or 

 to select “RCTA” 

and then press 

.

Each time the engine switch is turned off 
then changed to ON, the RCTA function 
will be enabled automatically.

Vehicles with the Intuitive parking 
assist

1

Press 

 or 

 to select 

.

2

Press 

 or 

 to select “PKSA” 

and then press 

.

3

Press 

 or 

 to select “RCTA” 

and then press 

.

Each time the engine switch is turned off 
then changed to ON, the RCTA function 
will be enabled automatically.

Outside rear view mirror indicator visi-

bility

In strong sunlight, the outside rear view mir-

ror indicator may be difficult to see.

Hearing the RCTA buzzer

The RCTA buzzer may be difficult to hear 

over loud noises, such as if the audio system 

volume is high.

When “Rear Cross Traffic Alert 

Unavailable” is shown on the 

multi-information display

Water, ice, snow, mud, etc., may be attached 

to the rear bumper around the sensors. 

(

P.198) Removing the water, ice, snow, 

mud, etc., from the attached to the rear 

bumper around the sensors to return the 

function to normal.
Additionally, the function may not operate 

normally when driving in extremely hot or 

cold environments.

Rear side radar sensors

P.198

Operation of the RCTA function

The RCTA function uses rear side radar sensors to detect vehicles approaching 
from the right or left at the rear of the vehicle and alerts the driver of the presence 
of such vehicles by flashing the outside rear view mirror indicators and sounding a 
buzzer.

Turning the RCTA function 
on/off

 RCTA function

212

4-5. Using the driving support systems

Approaching vehicles
Detection areas of approaching vehicles

RCTA icon display

When a vehicle approaching from the 
right or left at the rear of the vehicle is 
detected, the following will be dis-
played on the Center Display.

Example (Lexus parking assist mon-
itor) (if equipped): Vehicles are 
approaching from both sides of the 
vehicle

Example (Panoramic view monitor) 
(if equipped): Vehicles are 
approaching from both sides of the 
vehicle

RCTA function detection areas

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

A
B

213

4-5. Using the driving support systems

4

Driving

The buzzer can alert the driver of 
faster vehicles approaching from far-
ther away.
Example:

The RCTA function is operational when

The RCTA function operates when all of the 

following conditions are met:

The engine switch is in IGNITION ON 

mode.

The RCTA function is on.

The shift lever is in R.

The vehicle speed is approximately 9 

mph (15 km/h) or less.

The approaching vehicle speed is 

between approximately 5 mph (8 km/h) 

and 36 mph (56 km/h).

Setting the buzzer volume

The buzzer volume can be adjusted on the 

multi-information display. (

P.81)

Use the meter control switches to change 

settings. (

P.77)

Conditions under which the system will 

not detect a vehicle

The RCTA function is not designed to 

detect the following types of vehicles and/or 

objects:

Vehicles approaching from directly 

behind

Vehicles backing up in a parking space 

next to your vehicle

Vehicles that the sensors cannot detect 

due to obstructions

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

*

Small motorcycles, bicycles, pedestrians, 
etc.

*

Vehicles moving away from your vehicle

Vehicles approaching from the parking 
spaces next to your vehicle

*

The distance between the sensor and 

approaching vehicle gets too close

*

: Depending on the conditions, detection 

of a vehicle and/or object may occur.

Situations in which the system may not 

operate properly

The RCTA function may not detect vehicles 

correctly in the following situations:

When the sensor is misaligned due to a 

strong impact to the sensor or its sur-

rounding area

When mud, snow, ice, a sticker, etc., is 

covering the sensor or surrounding area 

Approaching vehi-

cle speed

 Approximate 

alert distance

36 mph (56 km/h) 

(fast)

130 ft. (40 m)

5 mph (8 km/h) 

(slow)

18 ft. (5.5 m)

A

 

 

 

 

 

 

 

Content      ..     4      5      6      7     ..