LEXUS LS 500H (2019 year). Manual — part 17

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●

The vicinity of the vehicle is noisy due to

vehicle horns, motorcycle engines, air

brakes of large vehicles, or other loud

noises producing ultrasonic waves.

●

There is another vehicle equipped with

parking assist sensors in the vicinity.

●

A sensor is coated with a sheet of spray

or heavy rain.

●

If a sensor is hit by a large amount of

water, such as when driving on a flooded

road.

●

If the vehicle is significantly tilted.

●

The vehicle is approaching a tall or

curved curb.

●

If objects draw too close to the sensor.

■

Objects which 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.

●

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.

■

Certification



For vehicles sold in the U.S.A.



For vehicles sold in Canada

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■

Detection range of the sensors

Approximately 3.3 ft. (100 cm)
Approximately 4.9 ft. (150 cm)
Approximately 1.9 ft. (65 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.

■

Multi-information display, head-up display (if equipped) 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, Center Display, and head-up display
(if equipped). (As the distance to the object becomes short, the distance segments
may blink.)

 Approximate distance to object: 4.9 ft. (150 cm) to 1.9 ft. (65 cm)

*

(Rear center

sensor)

*

: Automatic buzzer mute function is enabled. (

P.270)

 Approximate distance to object: 3.3 ft. (100 cm) to 1.9 ft. (65 cm)

*

(Front center

sensor)

Sensor detection display, object
distance

A
B
C

Multi-information display

Center Display

Head-up display

Multi-information display

Center Display

Head-up display

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*

: Automatic buzzer mute function is enabled. (

P.270)

 Approximate distance to object: 1.9 ft. (65 cm) to 1.5 ft. (45 cm)

*

*

: Automatic buzzer mute function is enabled. (

P.270)

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

*

*

: Automatic buzzer mute function is enabled. (

P.270)

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

*1

*1

: Automatic buzzer mute function is disabled. (

P.270)

*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.270)

*2

: The distance segments will blink rapidly.

■

Buzzer operation and distance to
an object

A buzzer sounds when the sensors are
operating.

Multi-information display

Center Display

Head-up display

Multi-information display

Center Display

Head-up display

Multi-information display

*2

Center Display

*2

Head-up display

Multi-information display

*2

Center Display

*2

Head-up display

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 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.264)

Meter control switches

Turning the RCTA function 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

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.

System components

A

B

C

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

P.273) 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
after the RCTA function is turned on.

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

P.91)

1

Press

or

to select

.

2

Press

or

to select “PKSA”

and then press

.

3

Press

or

to select “RCTA”

and then press

.

When the RCTA function is disabled, the

RCTA OFF indicator (

P.76) illuminates.

(Each time the power switch is turned off

then changed to ON mode, 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 “RCTA Not Available” is shown

on the multi-information display

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

the rear bumper around the sensors.

(

P.260) Removing the water, snow, mud,

etc., from the attached to the rear bumper

around the sensors to normal.
Additionally, the function may not function

normally when used in extremely hot or

cold environments.

■

Rear side radar sensors

P.260

■

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

D

WARNING

■

Cautions regarding the use of the

function

The driver is solely responsible for safe

driving. Always drive safely, taking care

to observe your surroundings.
The RCTA function is only a supplemen-

tary function which alerts the driver that a

vehicle is approaching from the right or

left at the rear of the vehicle. As the

RCTA function may not function cor-

rectly under certain conditions, the

driver’s own visual confirmation of safety

is necessary. Over reliance on this func-

tion may lead to an accident resulting

death or serious injury.

RCTA function

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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

■

RCTA function detection areas

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

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

A
B

Approaching vehi-

cle speed

Approximate

alert distance

18 mph (28 km/h)

(fast)

65 ft. (20 m)

5 mph (8 km/h)

(slow)

18 ft. (5.5 m)

A

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■

The RCTA function is operational when

The RCTA function operates when all of the

following conditions are met:

●

The power switch is in ON mode.

●

The RCTA function is on.

●

The shift position is in R.

●

The vehicle speed is less than approxi-

mately 5 mph (8 km/h).

●

The approaching vehicle speed is

between approximately 5 mph (8 km/h)

and 18 mph (28 km/h).

■

Setting the buzzer volume

The buzzer volume can be adjusted on the

multi-information display. (

P.264)

■

Conditions under which the RCTA func-

tion 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

*

*

: Depending on the conditions, detection

of a vehicle and/or object may occur.

■

Conditions under which the RCTA func-

tion may not function correctly

●

The RCTA function may not detect vehi-

cles correctly in the following situations:

• When a 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 a sensor or its 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

• If a vehicle is approaching the rear of

your vehicle rapidly

• When a towing eyelet is installed to the

rear of the vehicle.

• When backing up on a slope with a sharp

change in grade

• When backing out of a shallow angle

parking spot

• Immediately after the RCTA function is

turned on

• Immediately after the hybrid system is

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started with the RCTA function on

• When the sensors cannot detect a vehi-

cle due to obstructions

●

Instances of the RCTA function unneces-

sarily detecting a vehicle and/or object

may increase in the following situations:

• When a vehicle passes by the side of your

vehicle

• When the parking space faces a street

and vehicles are being driven on the

street

• When the distance between your vehicle

and metal objects, such as a guardrail,

wall, sign, or parked vehicle, which may

reflect electrical waves toward the rear of

the vehicle, is short

• When a towing eyelet is installed to the

rear of the vehicle

*

: If equipped

Pedestrian detection icon

Displayed automatically when a pedestrian
is detected.

RCD OFF icon

When the RCD function is disabled, the
RCD OFF icon illuminates. (Each time the
power switch is turned off then changed to
ON mode, the RCD function will be
enabled automatically.)

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

P.91)

1

Press

or

to select

.

RCD (Rear Camera Detec-
tion) function

*

When the vehicle is backing up, the
rear camera detection function can
detect pedestrians in the detection
area behind the vehicle. If a pedes-
trian is detected, a buzzer will
sound and an icon will be displayed
on the Center Display to inform the
driver of the pedestrian.

Center Display

Turning the RCD function on/off

A

B

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2

Press

or

to select “PKSA”

and then press

.

3

Press

or

to select “RCD”

and then press

.

When the RCD function is disabled, the

RCD OFF indicator (

P.76) illuminates.

If the rear camera detection function
detects a pedestrian in the detection
area, the buzzer and pedestrian detec-
tion will operate as follows:

If a pedestrian is detected in area

Buzzer: Sounds repeatedly
Pedestrian detection icon: Blinks 3
times and then stays on
If a pedestrian is detected in area

Buzzer (When the vehicle is sta-
tionary): Sounds 3 times
Buzzer (When the vehicle is back-
ing up, when a pedestrian
approaches the rear of the vehicle):

Sounds repeatedly
Pedestrian detection icon: Blinks 3
times and then stays on
If the system determines that your
vehicle may collide with a pedes-
trian in area
Buzzer: Sounds repeatedly
Pedestrian detection icon: Blinks 3
times and then stays on

■

The rear camera detection function is

operational when

●

The power switch is in ON mode.

●

RCD function is on.

●

The shift position is in R.

■

Setting the buzzer volume

The buzzer volume can be adjusted on the

multi-information display. (

P.264)

■

If “Rear Camera Detection Unavailable

Remove the Dirt of Rear Camera” is dis-

played on the multi-information display

A rear camera lens may be dirty or covered

with snow or ice. In such cases, if it is

removed from the rear camera lens, the sys-

tem should return to normal. (It may be nec-

essary to drive the vehicle for some time

before the system returns to normal.)

■

If “Rear Camera Detection Unavail-

able” is displayed on the multi-informa-

tion display

●

If this message is displayed after the

12-volt battery has been disconnected

and reconnected, fully turn the steering

wheel to the left and then the right on

level ground.

●

If this message is displayed only when the

R shift position is selected, the rear cam-

era lens may be dirty. Clean the rear

camera lens.

■

Situations in which the system may not

operate properly

●

Some pedestrians, such as the following,

may not be detected by the rear camera

detection function, preventing the func-

tion from operating properly:

When a pedestrian is detected

A

A

B

B

C

C

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• Pedestrians who are bending forward or

squatting

• Pedestrians who are lying down

• Pedestrians who are running

• Pedestrians who suddenly enter the

detection area

• People riding a bicycle, skateboard, or

other light vehicle

• Pedestrians wearing oversized clothing

such as a rain coat, long skirt, etc., making

their silhouette obscure

• Pedestrians whose body is partially hid-

den by an object, such as a cart or

umbrella

• Pedestrians which are obscured by dark-

ness, such as at night

●

In some situations, such as the following,

pedestrians may not be detected by the

rear camera detection function, prevent-

ing the function from operating properly:

• When backing up in inclement weather

(rain, snow, fog, etc.)

• When the rear camera is obscured (dirt,

snow, ice, etc. are attached) or scratched

• When a very bright light, such as the sun,

or the headlights of another vehicle,

shines directly into the rear camera

• When backing up in a place where the

surrounding brightness changes sud-

denly, such as at the entrance or exit of a

garage or underground parking lot

• When backing up in a dim environment

such as during dusk or in an underground

parking lot

●

Even though there are no pedestrians in

the detection area, some objects, such as

the following, may be detected, possibly

causing the rear camera detection func-

tion to operate.

• Three dimensional objects, such as a

pole, traffic cone, fence, or parked vehi-

cle

• Moving objects, such as a car or motor-

cycle

• Objects moving toward your vehicle

when backing up, such as flags or pud-

dles (or airborne matter, such as smoke,

steam, rain, or snow)

• Cobblestone or gravel roads, tram rails,

road repairs, white lines, pedestrian

crossings or fallen leaves on the road

• Metal covers (gratings), such as those

used for drainage ditches

• Objects reflected in a puddle or on a wet

road surface

• The roadside or bumps on the road

• Shadows on the road

●

In some situations, such as the following,

the rear camera detection function may

operate even though there are no pedes-

trians in the detection area.

• When backing up toward the roadside or

a bump on the road

• If the vehicle is significantly tilted, such as

when carrying a heavy load

• When backing up toward an

incline/decline

• If the suspension has been modified or

tires of a size other than specified are

installed

• If the rear of the vehicle is raised or low-

ered due to the carried load

• If an electronic component, such as a

backlit license plate or rear fog light, is

installed near the rear camera

• If a bumper protector, such as an addi-

tional trim strip, is installed to the rear

bumper

• If the orientation of the rear camera has

been changed

• If a towing eyelet is installed to the rear of

the vehicle

• When water is flowing over the rear cam-

era lens

• When the rear camera is obscured (dirt,

snow, ice, etc. are attached) or scratched

• If there is a flashing light in the detection

area, such as the emergency flashers of

another vehicle

●

Situations in which the rear camera

detection function may be difficult to

notice

• If buzzer may be difficult to hear if the

surrounding area is noisy, the volume of

the audio system volume is high, the air

conditioning system is being used, etc.

• If the temperature in the cabin is

extremely high or low, the audio system

screen may not operate correctly.

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*

: If equipped

■

Parking Support Brake function
(static objects) (if equipped)

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

P.284)

■

Parking Support Brake function
(rear-crossing vehicles) (if
equipped)

Rear radar sensors are used to detect
approaching vehicles in the detection
area behind the vehicle when backing
up. (

P.290)

■

Parking Support Brake function
(rear pedestrians) (if equipped)

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

P.294)

PKSB (Parking Support
Brake)

*

The Parking Support Brake 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 or pedestrian is
high, a warning operates to urge
the driver to take evasive action. If
the system determines that the pos-
sibility of a collision with a detected
object or pedestrian is extremely
high, the brakes are automatically
applied to help avoid the collision or
help reduce the impact of the colli-
sion.

PKSB (Parking Support Brake)
system

WARNING

■

Limitations of the Parking Support

Brake system

Do not overly rely on the system, as

doing so may lead to an accident.

●

The driver is solely responsible for safe

driving. Always drive carefully, taking

care to observe your surroundings.

The Parking Support Brake system is

designed to provide support to lessen

the severity of collisions. However, it

may not operate in some situations.

●

The Parking Support Brake system is

not designed to stop the vehicle com-

pletely. Additionally, even if the system

has stopped the vehicle, it is necessary

to depress the brake pedal immedi-

ately as brake control will be canceled

after approximately 2 seconds.

NOTICE

■

If “Parking Support Brake Unavail-

able” is displayed on the multi-infor-

mation display and the PKSB OFF

indicator is flashing

If this message is displayed immediately

after the power switch is changed to ON

mode, operate the vehicle carefully, pay-

ing attention to your surroundings. It may

be necessary to drive the vehicle for a

certain amount of time before the system

returns to normal. (If the system is not

return to normal after driving for a while,

clean the rear camera lens.)

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The Parking Support Brake can be
enabled/disabled on the multi-informa-
tion display. All of the Parking Support
Brake functions (static objects,
rear-crossing vehicles, and rear pedes-
trians) are enabled/disabled simultane-
ously.
Use the meter control switches to
enable/disable the parking support
brake. (

P.91)

1

Press

or

to select

.

2

Press

or

to select

and then press

.

When the Parking Support Brake is dis-

abled, the PKSB OFF indicator (

P.76)

illuminates.
To re-enable the system when it was dis-
abled, select

on the multi-information

display, select

and then On. If dis-

abled using this method, the system will not

be re-enabled by turning the power switch

off and then to ON mode.

If the hybrid system output restriction con-
trol or brake control operates, a buzzer will
sound and a message will be displayed on
the Center Display and multi-information
display, to alert the driver. On vehicles with
a head-up display, the head-up display will
display the same message as the
multi-information display.
Depending on the situation, hybrid system
output restriction control will operate to

either limit acceleration or restrict output
as much as possible.

 Hybrid system output restriction

control is operating (acceleration
restriction)

Acceleration greater than a certain
amount is restricted by the system.
Center Display (Panoramic view monitor):
No warning displayed
Multi-information display: “Object
Detected Acceleration Reduced”
PKSB OFF indicator: Not illuminated
Buzzer: Does not sound

 Hybrid system output restriction

control is operating (output
restricted as much as possible)

The system has determined that stron-
ger-than-normal brake operation is neces-
sary.
Center Display (Panoramic view monitor):
“BRAKE!”
Multi-information display: “BRAKE!”
PKSB OFF indicator: Not illuminated
Buzzer: Short beep

 Brake control is operating

The system determined that emergency
braking is necessary.
Center Display (Panoramic view monitor):
“BRAKE!”
Multi-information display: “BRAKE!”
PKSB OFF indicator: Not illuminated
Buzzer: Short beep

 Vehicle stopped by system opera-

tion

The vehicle has been stopped by brake
control operation.
Center Display (Panoramic view monitor):

Enabling/Disabling the Parking
Support Brake

Displays and buzzers for hybrid
system output restriction con-
trol and brake control

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“Press Brake Pedal”
Multi-information display: “Switch to
Brake” (If the accelerator pedal is not
depressed, “Press Brake Pedal” will be dis-

played.)
PKSB OFF indicator: Illuminated
Buzzer: Short beep

If the Parking Support Brake determines that a collision with a detected object or
pedestrian is possible, the hybrid system output will be restricted to restrain any
increase in the vehicle speed. (Hybrid system output restriction control: See figure
2.)
Additionally, if the accelerator pedal continues to be depressed, the brakes will be
applied automatically to reduce the vehicle speed. (Brake control: See figure 3.)
 Figure 1 When the PKSB (Parking Support Brake) is disabled

Hybrid system output
Braking force
Time

 Figure 2 When hybrid system output restriction control operates

System overview

A
B
C

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Hybrid system output
Braking force
Time
Hybrid system output restriction control begins operating
System determines that possibility of collision with detected object is high
Hybrid system output reduced
Example: Multi-information display:
“BRAKE!”

 Figure 3 When brake control operates

Hybrid system output
Braking force
Time

A
B
C
D

E
F

G

A
B
C

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Hybrid system output restriction control begins operating
System determines that possibility of collision with detected object is high
Hybrid system output reduced
System determines that possibility of collision with detected object is extremely
high
Brake control begins operating
Brake control strength increased
Example: Multi-information display:
“BRAKE!”
Example: Multi-information display: “Switch to Brake”

■

If the Parking Support Brake has oper-

ated

If the vehicle is stopped due to operation of

the Parking Support Brake, the Parking

Support Brake will be disabled and the

PKSB OFF indicator will illuminate. If the

Parking Support Brake operates unneces-

sarily, brake control can be canceled by

depressing the brake pedal or waiting for

approximately 2 seconds for it to automati-

cally be canceled. Then, the vehicle can be

operated by depressing the accelerator

pedal.

■

Re-enabling the Parking Support Brake

To re-enable the Parking Support Brake

when it is disabled due to operation of the

Parking Support Brake, either enable the

system again (

P.279), or turn the power

switch off and then back to ON mode.

Additionally, if the object becomes no lon-

ger in the traveling direction of the vehicle

or if the traveling direction of the vehicle

changes (such as changing from moving

forward to backing up, or from backing up

to moving forward), the system will be

re-enabled automatically.

■

If “Parking Support Brake Unavailable”

is displayed on the multi-information

display and the PKSB OFF indicator is

flashing

If the vehicle is stopped due to operation of

the Parking Support Brake, the Parking

Support Brake will be disabled and the

PKSB OFF indicator will illuminate.

●

A sensor may be covered with ice, snow,

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

from the sensor to return the system to

normal.

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 this message is displayed only when the

R shift position is selected, the rear cam-

era lens may be dirty. Clean the camera

lens. If this message is displayed in any

forward shift position, a sensor on the

front or rear bumper may be dirty. Clean

the sensors and their surrounding area

on the bumpers.

●

If this message continues to be displayed

even after cleaning the sensor, or is dis-

played even though the sensor is clean,

have the vehicle inspected by your Lexus

dealer.

●

Initialization may not have been per-

formed after a 12-volt battery terminal

was disconnected and reconnected. Ini-

tialize the system. (

P.282)

If this message continues to be displayed

even after initialization, have the vehicle

inspected by your Lexus dealer.

■

If a 12-volt battery terminal has been

disconnected 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.

D

E
F

G

H

I

J

K

283

4-5. Using the driving support systems

LS500h_OM_(U)_1809

4

Driving

Additionally, for vehicles with the Parking

Support Brake function, turn the steering

wheel fully to the left and right with the vehi-

cle stopped.