Lexus LS500 (2022 year). Manual in english — page 16

265

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

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.77) of the

multi-information display.

The setting will change each time the

meter control switch is pressed.

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.

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

Immediately after the switch is pressed, the

dynamic radar cruise control indicator will

come on. Afterwards, it switches to the

cruise control indicator.
Switching to constant speed control mode

is only possible when operating the switch

with the cruise control off.

Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
and press the “-SET” switch to set
the speed.

Cruise control “SET” indicator will come

on.
The vehicle speed at the moment the

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



P.262

Canceling and resuming the speed setting:

Selecting constant speed con-
trol mode

266

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual



P.264

■

Dynamic radar cruise control with

full-speed range can be set when

●

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.

(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

●

Pressing the “+RES” switch while the

vehicle ahead stops will resume follow-up

cruising if the vehicle ahead starts off

within approximately 3 seconds after the

switch is pressed.

●

If the vehicle ahead starts off within 3 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.

●

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.

267

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

■

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.199, 204,

434)

■

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.264) may not be activated.

●

Vehicles that cut in suddenly

●

Vehicles traveling at low speeds

●

Vehicles that are not moving in the same

lane

●

Vehicles with small rear ends (trailers

with no load on board, etc.)

●

Motorcycles traveling in the same lane

●

When water or snow thrown up by the

surrounding vehicles hinders the 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

268

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

●

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

: If equipped

Meter control switches

Turning the Blind Spot Monitor on/off.

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

269

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

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.269)

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.474)

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.

●

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.269) 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.271) satisfied

for approximately 10 minutes. If the
warning message 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 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.

270

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Use the meter control switches to turn

on/off the function.

Press

to select

Press

to select

and

then press

When the BSM function is disabled, the

BSM OFF indicator illuminates. (Each time

the engine switch is turned off then

changed to IGNITION ON mode, the

Blind Spot Monitor will be enabled auto-

matically.)

■

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.

WARNING

●

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

Blind Spot Monitor operation

271

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

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

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

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

cannot be detected.

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

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 position 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.

A
B
C
D

272

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

■

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-

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

273

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

: If equipped

■

Intuitive parking assist

Ultrasonic sensors are used to detect
static objects in the detection area
when driving at a low speed or backing
up. (



P.274)

■

RCTA (Rear Cross Traffic Alert)
function (if equipped)

Radar sensors are used to detect
approaching vehicles in the detection
areas behind the vehicle when backing
up. (



P.280)

■

RCD (Rear camera detection)
function (if equipped)

A rear camera sensor is used to detect
pedestrians in the detection area
behind the vehicle when backing up.
(



P.285)

■

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, RCTA function and RCD func-
tion will be adjusted simultaneously.
Use the meter control switches to
change settings. (



P.78)

Press

to select

Press

to select “PKSA”

and then press

Press

to select

and

then press

Each time the switch is pressed, the volume

level will change between 1, 2, and 3.

■

Muting a buzzer

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

The buzzers for the intuitive parking
assist, RCTA function and RCD func-
tion will be muted simultaneously.
Mute will be canceled automatically in
the following situations:



When the shift position is changed.



When the vehicle speed exceeds a
certain speed.



When the operating function is tem-
porarily canceled.



When the operating function is dis-
abled manually.



When the engine switch is turned

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 a collision with a
detected object, such as a wall, or
pedestrian is high, a warning oper-
ates to urge the driver to take eva-
sive action.

PKSA (Parking Support Alert)
system

Setting the buzzer volume

274

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

off.

: If equipped

■

Types of sensors

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

■

Display

When an object, such as a wall, is
detected by a sensor, the approximate
distance to the object will be displayed
on the multi-information display,
head-up display (if equipped) and
Center Display. (As the distance to the
object becomes short, the distance

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, head-up
display (if equipped), Center Dis-
play and a buzzer. Always check the
surrounding area when using this
system.

System components

A
B
C
D

275

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

segmentsmay blink.)



Multi-information display and
head-up display

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



Center Display

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

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



P.78)

Press

to select

Press

to select “PKSA”

and then press

Press

to select

and

then press

When the intuitive parking assist func-
tion is disabled, the intuitive parking
assist OFF indicator (



P.66) illumi-

nates.
To re-enable the system when it was
disabled, select

on the multi-infor-

mation display, select

and then On.

If disabled using this method, the sys-
tem will not be re-enabled by turning
the engine switch off and then to IGNI-
TION ON mode.

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.

276

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

■

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 position other than P is selected.

■

Setting the buzzer volume

The buzzer volume can be adjusted on the

multi-information display. (



P.273)

■

If “Clean Parking Assist Sensor” is dis-

played on the multi-information display

A sensor may be covered with water drops,

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

ice, snow, dirt, etc., from the sensor to return

the system to normal.
If a sensor is dirty, the position of the dirty

sensor will be shown on the display.
Due to ice forming on a sensor at low tem-

peratures, a warning message may be dis-

played 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 nor-

mal, the system will return to normal.

■

Sensor detection information

●

The following situations may occur

during use.

• The sensors may be able to only detect

objects near the front and rear bumpers.

• 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:

●

Wires, fences, ropes, etc.

WARNING

●

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 Lexas dealer. If the

front or rear bumper needs to be

removed/installed or replaced, con-

tact your Lexas dealer.

●

Do not modify, disassemble or paint

the sensors.

●

Do not attach a license plate cover.

●

Keep your tires properly inflated.

■

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.

277

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

●

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, water drops 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,

low-hanging branch or boom barrier

278

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

(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

■

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.

Additionally, for vehicles with the Parking

Support Brake function, turn the steering

wheel fully to the left and right with the vehi-

cle stopped.

■

Certification

279

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

Driving

■

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.

■

Buzzer operation and approximate
distance to object

A buzzer sounds when the sensors are
operating. When 2 or more objects are
detected simultaneously, the buzzer
sounds for the nearest object.



Buzzer: Sounds intermittently

Front center sensor: Approximately 3.3 ft.
(100 cm) to 2.0 ft. (60 cm)
Rear center sensor: Approximately 4.9 ft.
(150 cm) to 2.0 ft. (60 cm)



Buzzer: Sounds in short intervals

Approximately 2.0 ft. (60 cm) to 1.5 ft. (45
cm)



Buzzer: Sounds in extremely short
intervals

Approximately 1.5 ft. (45 cm) to 1.0 ft. (30
cm)



Buzzer: Sounds continuously

Less than approximately 1.0 ft. (30 cm)

: The buzzer beeps faster as the vehicle

approaches an object.
Automatic buzzer mute function: After a
buzzer begins sounding, if the distance
between the vehicle and the detected

System detection range

A
B
C

280

4-5. Using the driving support systems

LEXUS LS500 Owner's Manual

object does not become shorter, the
buzzer will be muted automatically.

: If equipped

RCTA (Rear Cross Traffic
Alert) function

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

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’s surroundings and driving

safely. (

