LEXUS LS500 2021 Owners Manual
Manufacturer: LEXUS, Model Year: 2021, Model line: LS500, Model: LEXUS LS500 2021Pages: 520, PDF Size: 9.81 MB
Page 291 of 520

2914-5. Using the driving support systems
4
Driving
traveling direction of the vehicle.
■Re-enabling the Parking Support Brake 
function (static objects)
 P.287
■Detection range of the Parking Support 
Brake function (static objects)
The detection range of the Parking Support 
Brake function (static objects) differs from 
the detection range of  the intuitive parking 
assist. ( P.276) Therefore, even if the intui-
tive parking assist de tects an object and 
provides a warning, the Parking Support 
Brake function (static objects) may not start 
operating.
■Objects that the Parking Support Brake 
function (static obje cts) may not detect
The sensors may not be able to detect cer-
tain objects, such as the following:
●Pedestrian
●Cotton cloth, snow, and other materials 
that are poor reflectors of ultrasonic 
waves
●Objects which are not perpendicular to 
the ground, are not perpendicular to the 
traveling direction of the vehicle, are 
uneven or are waving
●Low objects
●Thin objects such as wires, fences, ropes 
and signposts
●Objects that are extremely close to the 
bumper
●Sharply-angled objects
●Tall objects with upper sections project-
ing outwards in the direction of your vehi-
cle
■Situations in which the Parking Support 
Brake function (stati c objects) may not 
operate
When driving with the shift position in N
■Intuitive parking assist buzzer
Regardless of whether  the intuitive parking 
assist system is enabled or not ( P.273), if 
the Parking Support Brake function (static 
objects) is enabled ( P.285), the front or 
rear sensors detect an object and brake 
control is performed, the intuitive parking  assist buzzer will sound to notify the driver 
of the approximate distance to the object.
■Situations in which the Parking Support 
Brake function (static objects) may 
operate even if there is no possibility of a 
collision
In some situations, such as the following, the 
Parking Support Brake function (static 
objects) may operate even though there is 
no possibility of a collision.
●Vehicle surroundings
• When driving on a narrow road
• When driving on a gravel road or in an  area with tall grass
• When driving toward a banner, flag,  low-hanging branch or boom barrier 
(such as those used at railroad crossings, 
toll gates and parking lots)
• When driving on a  narrow path sur-
rounded by a structure, such as in a tun-
nel or on an iron bridge
• When parallel parking
• 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 on a steep slope
• If a sensor is hit by a large amount of 
water, such as when driving on a flooded 
road
●Weather
• If a sensor is covered with ice, snow, dirt,  etc. (when cleared, the system will return  
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2924-5. Using the driving support systems
to normal)
• If heavy rain or water strikes a sensor
• When driving in incl ement weather such 
as fog, snow or a sandstorm
• When strong winds are blowing
●Other ultrasonic wave sources
• 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 a sticker or an el ectronic component, 
such as a backlit license plate (especially 
fluorescent type), fog  lights, fender pole 
or wireless antenna is installed near a 
sensor
●Changes in the vehicle posture
• If the vehicle is significantly tilted
• 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
■Situations in which the Parking Support 
Brake function (stati c objects) may not 
operate properly
In some situations, such as the following, this 
function may not operate properly.
●Weather
• When a sensor or the area around a sen-
sor is extremely hot or cold
• When strong winds are blowing
• If a sensor is covered with water drops,  ice, snow, dirt, etc. (when cleared, the sys-
tem will return to normal)
• If heavy rain or water strikes a sensor
• When driving in incl ement weather such 
as fog, snow or a sandstorm
• When the sensor is frozen (Once the 
sensor thaws, the system will return to 
normal)
●Vehicle surroundings
• 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
• The vehicle is approaching a tall or 
curved curb.
• On an extremely bumpy road, on an  incline, on gravel, or on grass.
• If objects draw too close to the sensor.
●Other ultrasonic waves sources
• When vehicle horns, vehicle detectors,  motorcycle engines, air brakes of large 
vehicles, the clearance sonar of other 
vehicles or other de vices which produce 
ultrasonic waves are near the vehicle
• If a sticker or an electronic component, 
such as a backlit license plate (especially 
fluorescent type), fog lights, fender pole 
or wireless antenna is installed near a 
sensor
●Changes in the vehicle posture
• If the vehicle is significantly tilted
• 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
• 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 suspension has been modified or  tires of a size othe r than specified are 
installed
• If a sensor has been painted or covered  with a sticker, etc. 
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2934-5. Using the driving support systems
4
Driving
*:If equipped
This function will operate in situations 
such as the following if a vehicle is 
detected in the traveling direction of 
the vehicle.
When reversing, a vehicle is 
approaching and the brake pedal is 
not depressed, or is depressed late
 P.267
■The Parking Support Brake function 
(rear-crossing vehicles) will operate 
when
The function will operate when the PKSB 
OFF indicator is not illuminated ( P.72) 
and all of the following conditions are met:
●Engine output restriction control
• The Parking Support Brake is enabled.
• The vehicle speed is 9 mph (15 km/h) or  less.
• Vehicles which are ap proaching from the 
right or left at the rear of the vehicle at a 
traveling speed of approximately 5 mph 
(8 km/h) or more.
• The shift position is in R.
• The Parking Support Brake determines  that a stronger than normal brake opera-
tion is necessary to avoid a collision with 
an approaching vehicle.
●Brake control
• Engine output restriction control is oper-
ating.
• The Parking Support Brake determines 
Parking Support Brake func-
tion (rear-crossing vehicles)*
If a rear radar sensor detects a vehi-
cle approaching from the right or 
left at the rear of the vehicle and the 
system determines that the possi-
bility of a collision is high, this func-
tion will perform brake control to 
reduce the likelihood of an impact 
with the approaching vehicle.
Examples of function operation
Types of sensors
WARNING
■To ensure the Parking Support Brake 
(rear-crossing vehicles) can operate 
properly
Observe the following precautions 
regarding the rear side radar sensors 
(  P.267). Failure to do so may cause a 
sensor to not operate properly, and may 
cause an accident.
●Do not modify, disassemble or paint 
the sensors.
●Do not replace a rear side radar sen-
sor with a part other than a genuine 
part.
●Do not damage the rear side radar 
sensors, and always keep the radar 
sensors and their surrounding area on 
the bumper clean.
●If the area around a rear side radar 
sensor is subjected to an impact, the 
system may not operate properly due 
to a sensor malfunction. Have the vehi-
cle inspected by your Lexus dealer. 
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2944-5. Using the driving support systems
that an emergency brake operation is 
necessary to avoid a collision with an 
approaching vehicle.
■The Parking Support Brake function 
(rear-crossing vehicles) will stop operat-
ing when
The function will stop operating if any of the 
following conditions are met:
●Engine output restriction control
• The Parking Support Brake is disabled.
• The collision becomes avoidable with  normal brake operation.
• A vehicle is no longer approaching from  the right or left at the rear of the vehicle.
●Brake control
• The Parking Support Brake is disabled.
• Approximately 2 seconds have elapsed 
since the vehicle was stopped by brake 
control.
• The brake pedal is depressed after the  vehicle is stopped by brake control.
• A vehicle is no longer approaching from 
the right or left at the rear of the vehicle.
■Re-enabling the Parking Support Brake 
function (rear-crossing vehicles)
 P.287
■Detection area of the Parking Support 
Brake function (rear-crossing vehicles)
The detection area of the Parking Support 
Brake function (rear-crossing vehicles) dif-
fers from the detection area of the RCTA 
function ( P.279). Therefore, even if the 
RCTA function detects a vehicle and pro-
vides an alert, the Parking Support Brake 
function (rear-crossing vehicles) may not 
start operating.
■Conditions under which the Parking 
Support Brake function (rear-crossing 
vehicles) will not detect a vehicle
The Parking Support Brake function 
(rear-crossing vehicles) 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
●Vehicles which suddenly accelerate or 
decelerate near your vehicle
●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
●Objects which are extremely close to a 
radar sensor
●Vehicles which are approaching from the 
right or left at the rear of the vehicle at a 
traveling speed of less than approxi-
mately 5 mph (8 km/h)
●Vehicles which are approaching from the 
right or left at the rear of the vehicle at a 
traveling speed of 
more than approxi-
mately 15 mph (24 km/h)
■PKSB buzzer
If the Parking Support Brake is enabled and 
brake control is performed, a buzzer will 
sound to notify the driver.
■Situations in which the system may 
operate even though there is no possi-
bility of a collision
In some situations such as the following, the 
Parking Support Brake function 
(rear-crossing vehicles) may operate even 
though there is no possibility of a collision.
●When the parking space faces a street 
and vehicles are being driven on the 
street 
Page 295 of 520

2954-5. Using the driving support systems
4
Driving
●When a detected vehicle turns while 
approaching the vehicle
●When a vehicle passes by the side of your 
vehicle
●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 there are spinning objects near 
your vehicle such as the fan of an air con-
ditioning unit
●When water is splashed or sprayed 
toward the rear bumper, such as from a 
sprinkler
■Situations in which the Parking Support 
Brake function (rear-crossing vehicles) 
may not operate properly
In some situations, such as the following, the 
radar sensors may not detect an object and 
this function may not operate properly
●Stationary objects
●When a sensor or the area around a sen-
sor is extremely hot or cold
●If the rear bumper is covered with ice, 
snow, dirt, etc.
●When it is raining he avily or water strikes 
the vehicle
●If the vehicle is significantly tilted
●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 suspension has been modified or 
tires of a size othe r than specified are 
installed
●If the front of the vehicle is raised or low-
ered due to the carried load
●If an electronic component, such as a 
backlit license plate  (especially fluores-
cent type), fog lights, fender pole or wire-
less antenna is installed near a radar 
sensor
●If the orientation of  a radar sensor has 
been changed
●When multiple vehicl es are approaching 
with only a small gap between each vehi-
cle
●If a vehicle is approaching the rear of 
your vehicle rapidly
●Situations in which  the radar sensor may 
not detect a vehicle
• When a vehicle approaches from the  right or left at the rear of the vehicle while 
you are turning while backing up
• When turning while backing up 
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2964-5. Using the driving support systems
• When backing out of a shallow angle parking spot
• When backing up on a slope with a sharp  change in grade
• When a vehicle turns into the detection  area
*: If equipped
When a pedestrian is detected behind 
the vehicle while backing up, the brake 
pedal is not depressed or is depressed 
late.
Displays a message to urge the driver 
to take evasive action when a pedes-
trian is detected in the detection area 
behind the vehicle. (A message will 
also be displayed on the multi-informa-
Parking Support Brake func-
tion (rear pedestrians)*
If the rear camera sensor detects a 
pedestrian behind the vehicle while 
backing up and the system deter-
mines that the possibility of collid-
ing with the detected pedestrian is 
high, a buzzer will sound. If the sys-
tem determines that  the possibility 
of colliding with the detected 
pedestrian is extremely high, the 
brakes will be applied automatically 
to help reduce the impact of the 
collision.
Examples of system operation
Center Display 
Page 297 of 520
![LEXUS LS500 2021  Owners Manual 2974-5. Using the driving support systems
4
Driving
tion display and head-up display [if 
equipped].)Pedestrian detection icon
Brake reminder■Parking Support Brake function (rear 
pedestrians) will  LEXUS LS500 2021  Owners Manual 2974-5. Using the driving support systems
4
Driving
tion display and head-up display [if 
equipped].)Pedestrian detection icon
Brake reminder■Parking Support Brake function (rear 
pedestrians) will](/img/36/58935/w960_58935-296.png)
2974-5. Using the driving support systems
4
Driving
tion display and head-up display [if 
equipped].)Pedestrian detection icon
Brake reminder■Parking Support Brake function (rear 
pedestrians) will operate when
The function will operate when the PKSB 
OFF indicator is not illuminated ( P.72) 
and all of the following conditions are met:
●Engine output restriction control
• The Parking Support Brake is enabled.
• The vehicle speed is 9 mph (15 km/h) or  less.
• The shift position is in R.
• The rear camera sensor detects a pedes- trian behind the vehicle while backing up 
and the system determines that the possi-
bility of colliding with the detected 
pedestrian is high.
●Brake control
• Engine output restriction control is oper-
ating.
• The Parking Support Brake determines  that an emergency brake operation is 
necessary to avoid a collision with a 
pedestrians.
■The Parking Support Brake function 
(rear pedestrians) will stop operating 
when
The function will stop operating if any of the 
following conditions are met:
●Engine output restriction control
• The Parking Support Brake is disabled.
• The collision becomes avoidable with  normal brake operation.
• The pedestrian is no longer detected  behind your vehicle.
●Brake control
• The Parking Support Brake is disabled.
• Approximately 2 seconds have elapsed  since the vehicle was stopped by brake 
control.
• The brake pedal is depressed after the  vehicle is stopped by brake control.
• The pedestrian is no longer detected  behind your vehicle.
■Re-enabling the Parking Support Brake 
function (rear pedestrians)
 P.287
■Detection area of the Parking Support 
Brake function (rear pedestrians)
The detection area of  the Parking Support 
WARNING
■If the Parking Support Brake function 
(rear pedestrians) operates unneces-
sarily
Depress the brake pedal immediately 
after the Parking Support Brake function 
(rear pedestrians) operates. (Operation 
of the function is canceled by depressing 
the brake pedal.)
■Correct use of the Parking Support 
Brake function (rear pedestrians)
Do not overly rely on the Parking Sup-
port Brake function (rear pedestrians). 
Depending on the road  conditions, vehi-
cle conditions and weather, this function 
may not operate correctly. As the detec-
tion performance of the rear camera is 
limited, always drive safely, taking care to 
observe your surroundings.
Additionally, if a warning message is dis-
played on the center display indicating 
that the Parking Support Brake function 
(rear pedestrians) is unavailable, the 
function cannot be used. Even if these 
warnings are not output, the driver is 
always responsible for paying attention 
to the vehicle’s surro undings and driving 
safely.
A
B 
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2984-5. Using the driving support systems
Brake function (rear pedestrians) differs 
from the detection area of the RCD func-
tion (P.282). Therefore, even if the RCD 
function detects a pedestrian and provides 
an alert, the Parking Support Brake function 
(rear pedestrians) may not start operating.
■Situations in which the system may not 
operate properly
●Some pedestrians, such as the following, 
may not be detected by the Parking Sup-
port Brake function (rear pedestrians), 
preventing the function from operating 
properly:
• 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 
Parking Support Brake function (rear 
pedestrians), preventing 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 Parking Support Brake func- tion (rear pedestrians) 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, puddles 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 Parking Support Brake function (rear 
pedestrians) may operate even though 
there are no pedestrians in the detection 
area.
• When backing up toward the roadside or 
a bump on the road
• If the vehicle is signif icantly 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 othe r 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 in stalled 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 at tached) or scratched
• If there is a flashing light in the detection 
area, such as the emergency flashers of 
another vehicle 
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2994-5. Using the driving support systems
4
Driving
Vehicles without Adaptive Variable 
Suspension System
1 Normal mode
Provides an optimal ba lance of fuel econ-
omy, quietness, and dynamic performance. 
Suitable for city driving.
Press the switch to change the driving 
mode to normal mode when not in normal 
mode.
2 Eco drive mode
Helps the driver accelerate in an 
eco-friendly manner and improve fuel 
economy through moderate throttle char-
acteristics and by controlling the operation 
of the air conditioning system (heat-
ing/cooling).
When not in Eco drive mode, if the driving 
mode select switch is turned backward, the 
Eco drive mode indicator will come on.
3Sport mode
Controls the transmission and engine to 
provide quick, powerful  acceleration. This 
mode also changes the steering feel, mak-
ing it suitable for when agile driving 
response is desired, such as when driving  on roads with many curves.
When not in sport mode, if the driving 
mode select switch is turned forward, the 
sport mode indicator will comes on.
Vehicles with Adaptive Variable 
Suspension System
Except F SPORT models
F SPORT models
1 Normal mode/Custom mode
Normal mode and custom mode are 
selected by pressing the driving mode 
select switch. Each  time the switch is 
pressed, the driving mode changes 
between normal mode and custom mode.
When normal mode is selected, the normal 
mode indicator comes on.
When custom mode is selected, the cus-
tom mode indicator comes on.
Press the switch to change the driving 
mode to normal mode when not in normal 
mode.
• Normal mode
Provides an optimal ba lance of fuel econ-
omy, quietness, and dynamic performance. 
Driving mode select switch
The driving modes can be selected 
to suit driving condition.
Selecting a drive mode
A
B 
Page 300 of 520

3004-5. Using the driving support systems
Suitable for city driving.
When the shift position is in D, an appropri-
ate gear for sporty driving may automati-
cally be selected according to driver 
performance and driving conditions.
•Custom mode
Allows you to drive with the powertrain, 
chassis and air conditioning system func-
tions set to your preferred settings. Cus-
tom mode settings can only be changed on 
the drive mode customization display of 
the Center Display. ( P.316)
2 Comfort mode
By controlling the suspension, riding com-
fort is further enhanc ed. Suitable for city 
driving.
When not in comfort mode and the driving 
mode select switch is turned backward, the 
comfort mode indicator comes on.
3 Eco drive mode
Helps the driver accelerate in an 
eco-friendly manner and improve fuel 
economy through moderate throttle char-
acteristics and by controlling the operation 
of the air conditioning system (heat-
ing/cooling).
When in comfort mode, if the driving mode 
select switch is turned backward, the Eco 
drive mode indicator comes on.
4Sport mode
•Sport S mode
Controls the transmission and engine to 
provide quick, powerful  acceleration. This 
mode is suitable for when agile driving 
response is desired, such as when driving 
on roads with many curves.
When not in Sport S mode, if the driving 
mode select switch is turned forward, the 
Sport S mode indicator comes on.
•Sport S+ mode
Helps to ensure stee ring performance and 
driving stability by simultaneously con- trolling the steering and suspension in 
addition to the transmission and engine. 
Suitable for sportier driving.
When in Sport S mode, if the driving mode 
select switch is turned forward, the Sport 
S+ mode indicator comes on.
■If the driving mode select switch is oper-
ated while the opening screen is being 
displayed
If the driving mode sele ct switch is operated 
while the opening screen  is being displayed, 
the driving mode will be changed and the 
meter display will chan ge accordingly after 
the opening screen operation has com-
pleted.
■Operation of the air conditioning sys-
tem in Eco drive mode
Eco drive mode controls the heating/cool-
ing operations and fan speed of the air con-
ditioning system to enhance fuel efficiency. 
To improve air condit ioning performance, 
perform the following operations:
●Turn off eco air conditioning mode 
(  P.328)
●Adjust the fan speed ( P.323)
●Turn off Eco drive mode
■Automatic deactivation of sport mode 
and custom mode
If the engine switch is turned off after driv-
ing in sport mode or custom mode, the 
drive mode will be changed to normal 
mode.
■Driving mode pop-up display
When the driving mode is changed, the 
selected driving mode  will be temporarily 
displayed on the side display. ( P.317)