ignition LEXUS LS500H 2020 Service Manual

2714-5. Using the driving support systems
4
Driving
2Press 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.68) 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 dete
ction function is
operational when
●The engine switch is in IGNITION 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.258)
■If “Rear Camera Detection Unavailable
Remove the Dirt of Rear Camera” is dis-
played on the multi-information display
A rear camera lens ma y 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 di splayed after the bat-
tery has been disconnected and recon-
nected, fully turn the steering wheel to
the left and then the right on level ground.
●If this message is di splayed 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

2734-5. Using the driving support systems
4
Driving
*: If equipped
■Parking Support Brake function
(static objects)
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.279)
■Parking Support Brake function
(rear-crossing vehicles)
Rear radar sensors are used to detect
approaching vehicles in the detection
area behind the vehicle when backing
up. ( P.285)
■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.289)PKSB (Parking Support
B
rake)*
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 vehicl e, 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 engine swit ch is changed to
IGNITION ON mode, operate the vehi-
cle carefully, paying attention to your sur-
roundings. 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.)

2744-5. Using the driving support systems
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.81)
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.68)
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 engine switch
off and then to IGNITION ON mode.
If the engine output restriction control or
brake control operates, a buzzer will sound
and a message will be displayed on the
Center Display and multi-information dis-
play, 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, engine output
restriction control will operate to either limit acceleration or restrict output as
much as possible.

Engine 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
Engine 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):
“Press Brake Pedal”
Enabling/Disabling the Parking
Support Brake
Displays and buzzers for engine
output restriction control and
brake control

2954-5. Using the driving support systems
4
Driving
To adjust the vehicle height to one
appropriate for road and driving con-
ditions, press the vehicle height adjust-
ment switch.Turns high mode on/off.
When high mode is enabled, the high
mode indicator on the meter will illuminate.
The vehicle height will increase by approxi-
mately 0.8 in. (20 mm) from its normal
position.
When the vehicle height is increased by a
control of access mode press the vehicle
height adjustment switch twice to
enable/disable high mode.
■The vehicle height adjustment switch
can be used to change the mode when
The engine switch is in IGNITION ON
mode.
■System protection function
If the vehicle height is repeatedly increased
and decreased using the vehicle height
adjustment switch, etc ., the system may not
operate temporarily.
In order to improve the ease of enter-
ing and exiting the vehicle, the vehicle
height will increase automatically.
Enter control
If any of the following operations are
performed, the vehicle height will
increase automatically:
WARNING
■Vehicle height co ntrol precautions
In the following situations, make sure to
check the safety of the area around the
vehicle, as the vehicle height may change
and part of someone’s body may be
caught in the vehicle, possibly causing
injury or the vehicle may be damaged.
●When opening or closing a door
●When locking or unlocking the doors
●When changing the vehicle height
using the vehicle height adjustment
switch
NOTICE
■Parking precaution
●If the vehicle is parked for a long time,
the vehicle height may change due to
changes in the ambient temperature.
When parking the vehicle, make sure
that the area above and below the
vehicle is clear, so that the vehicle will
not contact anything if its height
changes.
●Be careful when parking the vehicle in
an area with a low ceiling or near low
hanging objects, as the vehicle height
will increase when passengers exit the
vehicle and exit control of access
mode operates.
●When the doors are closed or locked,
the vehicle height may decrease.
When parking in a parking lot with a
device which raises to contact the bot-
tom of the vehicle, make sure to dis-
able the vehicle height control.
Selecting the vehicle height
Vehicle height control when
entering/exiting the vehicle
(“Access Mode”)

3135-1. Remote Touch/Display
5
Interior features
Touch to turn the screen off.
Press the buttun to display the
home screen.
Touch to adjust the brightness of
the screen.
Touch to display the automatic
screen transition settings screen.
Touch to lock the Rear Multi Oper-
ation Panel.
■Auto screen change settings
screenTouch to turn the automatic screen
transition function on/off.
Touch to set whether the screen will
transition to the home screen or
turn off when the automatic screen
transition function operates.
Touch to set the amount of time
(10/30/60/120 seconds) the Rear
Multi Operation Panel must be idle before the automatic screen transi-
tion function operates.
When the screen is off, press the
button to turn the screen on and display
the previously disp
layed screen. Press
again to display the home screen.
■Unlocking the Rear Multi Opera-
tion Panel
Touch and hold until the unlock sta-
tus indicators ( ) are completely illu-
minated to unlock the Rear Multi
Operation Panel.
■Operating the Rear Multi Operation
Panel
●When operating the Rear Multi Opera-
tion Panel, only use the tip of a finger. The
Rear Multi Operation Panel cannot be
operated with a fingernail, pen, etc.
●Use only one finger when operating the
Rear Multi Operation Panel. The Rear
Multi Operation Panel cannot be oper-
ated with multiple fingers.
●When the engine swit ch is changed to
ACCESSORY or IGNITION ON mode,
if a hand object, liquid or foreign matter is
touching the Rear Multi Operation Panel,
it may not operate correctly. In this case,
remove anything touching the Rear Multi
Operation Panel and wait for approxi-
mately 30 seconds be fore operating it
again.
If the Rear Multi Operation Panel still
cannot be operated normally, press and
A
B
C
D
A
B
C
A
B

3195-3. Using the air conditioning system and defogger
5
Interior features
■Registering air conditioning settings to
electronic keys
●Unlocking the vehicle using an electronic
key and turning the engine switch to
IGNITION ON mode will recall that
key’s registered air conditioning settings.
●When the engine switch is turned off, the
current air conditioning settings will auto-
matically be registered to the electronic
key that was used to unlock the vehicle.
●The system may not operate correctly if
more than one electronic key is in the
vicinity or if the smart access system with
push-button start is used to unlock a pas-
senger door.
●The doors that can recall the air condi-
tioning setting* when unlocked using the
smart access system with push-button
start can be changed. For details, contact
your Lexus dealer.
*: The doors that can recall the driving
position memory are changed at the
same time.
■Operation of the air conditioning sys-
tem in Eco drive mode
In Eco drive mode, the air conditioning sys-
tem is controlled as follows to prioritize fuel
efficiency:
●Engine speed and compressor operation
controlled to restri ct heating/cooling
capacity
●Fan speed restricted when automatic
mode is selected
To improve air conditioning performance,
perform the following operations:
●Turn off eco air conditioning mode
(  P.320)
●Adjust the fan speed
●Turn off Eco drive mode ( P.292)
■When the outside temperature falls to
nearly 32°F (0°C)
The dehumidification function may not
operate even when “A/C” is selected.
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning
system to the outside air mode.
●During use, various odors from inside and
outside the vehicle may enter into and
accumulate in the air conditioning sys-
tem. This may then cause odor to be
emitted from the vents.
●To reduce potential odors from occur-
ring:
• It is recommended that the air condition-
ing system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be
delayed for a short period of time imme-
diately after the air conditioning system is
started in automatic mode or with the
micro dust and pollen filter on.
●When parking, the system automatically
switches to outside air mode to encour-
age better air circulation throughout the
vehicle, helping to reduce odors that
occur when starting the vehicle.
■Using the voice command system
Air conditioning system can be operated
using voice commands. For details, refer to
the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.
■Air conditioning filter
 P.402
■Customization
Some functions can be customized.
(  P.470)
WARNING
■To prevent the windshield from fog-
ging up
Do not use the windshield defogger
switch during cool air operation in
extremely humid weather. The difference
between the temperature of the outside
air and that of the windshield can cause
the outer surface of the windshield to fog
up, blocking your vision.
■When the outside rear view mirror
defoggers are operating
Do not touch the outside rear view mir-
ror surfaces, as they can become very
hot and burn you.

3255-3. Using the air conditioning system and defogger
5
Interior features
mode, directing airflow to the front
seats only and to all seats can be
switched via switch operation. When
the mode has been switched manually,
automatic airflow control stops operat-
ing.
Select on the option control
screen (P.322) and switch the air-
flow.
 Indicator illuminated: Airflow to the
front seat only
 Indicator off: Airflow to all the seats.
■Operation of automatic airflow mode
●In order to maintain a comfortable inte-
rior, airflow may be directed to seats
without passengers immediately after the
engine is started and at other times
depending on the outside temperature.
●After the engine is st arted, if passengers
move around inside or enter/exit the vehi-
cle, the system cannot accurately detect
the presence of passengers and auto-
matic airflow control will not operate.
■Operation of manual airflow control
Even if the function is manually switched to
directing airflow to only the front seats,
when a rear seat is occupied, it may auto-
matically direct airflow to all seats.
■To return to automa tic airflow control
1 With the indicator off, turn the engine
switch off.
2 After 60 minutes or more elapse,
change the engine switch to IGNITION
ON mode.
Vehicles with DUAL-ZONE climate
control
To turn on the “DUAL” mode, perform
any of the following procedures:
 Select “DUAL” on the sub function
menu. ( P.320)
 Select “DUAL” on the option con-
trol screen.
 Adjust the passenger’s side tem-
perature setting.
The indicator on the main control screen
comes on when the “DUAL” mode is on.
Vehicles with 4-ZONE climate con-
trol
To turn on the “4-ZONE” mode, per-
form any of the following procedures:
 Select “4-ZONE” on the sub func-
tion menu. ( P.320)
 Select “4-ZONE” on the option
control screen.
 Adjust a passenger seat tempera-
ture setting.
The indicator on the main control screen
comes on when the “4-ZONE” mode is on.
■Location of air outlets
The air outlets and air volume changes
according to the selected air flow
mode.
Adjusting the temperature for
the driver and passenger seats
separately
Air outlet layout and operations

3325-3. Using the air conditioning system and defogger
used to operate the rear air conditioning
system if the function is disabled.
( P.327)
Rear air conditioning control screen
Adjust the rear seat heater tem-
perature level
Each time the switch is selected, the tem-
perature level and leve l indicator (orange)
change as follows:
AUTO Hi Mid Lo OFF
Adjust the rear seat ventilator fan
speed level
Each time the switch is selected, the fan
speed level and leve l indicator (blue)
change as follows:
AUTO Hi Mid Lo OFF
Shortcut screen
Adjust the rear seat heater tem-
perature level
Each time the switch is selected, the tem-
perature level and leve l indicator (orange)
change as follows: AUTO
Hi Mid Lo OFF
Adjust the rear seat ventilator fan
speed level
Each time the switch is selected, the fan
speed level and level indicator (blue)
change as follows:
AUTO Hi Mid Lo OFF
■Rear control panel (if equipped)
Increases the rear seat heater tem-
perature level
The seat ventilator can be adjusted in 3 lev-
els. (Low, Mid or Hi)
Enables/Disables the automatic
mode of the rear seat heaters
Decreases the rear seat heater
temperature level
If this switch is select ed when the rear seat
heater temperature level is set to Lo, the
rear seat heater will turn off.
■The heated steering wheel, seat heaters
and seat ventilators can be used when
The engine switch is in IGNITION ON
mode.
■Air conditioning system-linked control
mode
When the seat ventilator fan speed level is
Hi, the seat ventilato r fan speed becomes
higher according to the fan speed of the air
conditioning system.
A
B
A
B
A
B
C

3465-6. Using the other interior features
5-6.Using the other interior features
The USB charging ports are used to
supply 2.1 A of electricity at 5 V to
external devices.
The USB charging ports are for
charging only. They are not designed
for data transfer or other purposes.
Depending on the external device, it
may not charge properly. Refer to the
manual included with the device
before using a USB charging port.
■Using the USB charging ports
Open the auxiliary boxes lid.
Vehicles without power rear seat
Vehicles with power rear seat
■The USB charging ports can be used
when
The engine switch is in ACCESSORY or IGNITION ON mode.
■Situations in whic
h the USB charging
ports may not operate correctly
●If a device which consumes more than 2.1
A at 5 V is connected
●If a device designed to communicate with
a personal computer, such as a USB
memory device, is connected
●If the connected external device is turned
off (depending on device)
●If the temperature inside the vehicle is
high, such as after the vehicle has been
parked in the sun
■About connected external devices
Depending on the connected external
device, charging may occasionally be sus-
pended and then start again. This is not a
malfunction.
Other interior features
USB charging ports
NOTICE
■To prevent damage to the USB
charging ports
●Do not insert foreign objects into the
ports.
●Do not spill water or other liquids into
the ports.
●When the USB charging ports are not
in use, close the lids. If a foreign object
or liquid enters a port may cause a
short circuit.
●Do not apply excessive force to or
impact the USB charging ports.
●Do not disassemble or modify the USB
charging ports.
■To prevent damage to external
devices
●Do not leave external devices in the
vehicle. The temperature inside the
vehicle may become high, resulting in
damage to an external device.
●Do not push down on or apply unnec-
essary force to an external device or
the cable of an external device while it
is connected.

3495-6. Using the other interior features
5
Interior features
■The power outlet can be used when
●12 V
The engine switch is in ACCESSORY or
IGNITION ON mode.
●120 VAC
The engine switch is in IGNITION ON
mode.
NOTICE
■To avoid damaging the power outlet
Close the power outlet lid when the
power outlet is not in use.
Foreign objects or liquids that enter the
power outlet may cause a short circuit.
■To prevent the fuse from being blown
●12 V
Do not use an accessory that uses more
than 12 V 10 A.
●120 VAC
Do not use a 120 VAC appliance that
requires more than 100 W. If a 120 VAC
appliance that consumes more than 100
W is used, the protection circuit will cut
the power supply.
■To prevent incorrect operation of the
vehicle
When turning the engine switch off,
make sure to disc onnect accessories
designed for charging , such as portable
chargers, power banks, etc. from the
power outlets.
If such an accessory is left connected, the
following may occur:
●The doors cannot be locked using the
smart access system with push-button
start or wireless remote control.
●The opening screen will be displayed
on the multi-information display.
●The interior lights, instrument panel
lights, etc. will illuminate.
■To prevent the battery from being dis-
charged
Do not use the power outlet longer than
necessary when the engine is not run-
ning.
■Appliances that may not operate
properly (120 VAC)
The following 120 VAC appliances may
not operate properly even if their power
consumption is under 100 W.
●Appliances with high initial peak watt-
age
●Measuring devices that process pre-
cise data
●Other appliances that require an
extremely stable power supply