engine LEXUS LS500 2018 Owners Manual

2974-5. Using the driving support systems
LS500_OM_OM50F54U_(U) 4
Driving • Vehicles without Lexus Safety Sys-
tem+A: The brake pedal may move down
slightly after the ABS is activated.■
ECB operating sound
ECB operating sound may be heard in the
following cases, but it does not indicate that
a malfunction has occurred. ●
Operating sound heard from the engine
compartment when the brake pedal is
operated.●
Motor sound of the brake system heard
from the front part of the vehicle when
the driver’s door is opened.●
Operating sound heard from the engine
compartment when one or two minutes
passed after the stop of the engine.■
EPS, VGRS and DRS operation sound
When the steering wheel is operated, a
motor sound (whirring sound) may be
heard. This does not indicate a malfunction. ■
Automatic reactivation of TRAC and
VSC systems
After turning the TRAC and VSC systems
off, the systems will be automatically
re-enabled in the following situations: ●
When the engine switch is turned off●
If only the TRAC system is turned off, the
TRAC will turn on when vehicle speed
increases
If both the TRAC and VSC systems are
turned off, automatic re-enabling will not
occur when vehicle speed increases.■
Reduced effectiveness of the EPS sys-
tem
The effectiveness of the EPS system is
reduced to prevent the system from over-
heating when there is frequent steering
input over an extended period of time. The
steering wheel may feel heavy as a result.
Should this occur, re frain from excessive
steering input or stop the vehicle and turn
the engine off. The EPS system should
return to normal within 10 minutes.
■
Secondary Collision Brake operating
conditions
The vehicle speed is approximately 6 mph
(10 km/h) or more and the airbag sensor detects a collision. (The Secondary Colli-
sion Brake will not operate when the vehicle
speed is below approximately 6 mph [10
km/h].) ■
Secondary Collision Brake automatic
cancellation
The Secondary Collision Brake is automati-
cally canceled in the following situations: ●
The vehicle speed drops below approxi-
mately 6 mph (10 km/h) ●
A certain amount of time elapses during
operation ●
The accelerator pedal is depressed a
large amount ■
When “Check VGRS System” or
“CHECK DRS” is displayed on the
multi-information display
The VGRS or DRS may not operate prop-
erly. Have the vehicle inspected by your
Lexus dealer.
WARNING■
The ABS does not operate effectively
when ●
The limits of tire gripping performance
have been exceeded (such as exces-
sively worn tires on a snow covered
road).
●
The vehicle hydroplanes while driving
at high speed on wet or slick roads.
■
Stopping distance when the ABS is
operating may exceed that of normal
conditions
The ABS is not designed to shorten the
vehicle’s stopping di stance. Always main-
tain a safe distance from the vehicle in
front of you, especially in the following
situations:
●
When driving on dirt, gravel or
snow-covered roads
●
When driving with tire chains
●
When driving over bumps in the road
●
When driving over roads with potholes
or uneven surfaces

2994-6. Driving tips
LS500_OM_OM50F54U_(U) 4
Driving 4-6.Driving tips
 Use fluids that are appropriate to
the prevailing outside temperatures. •Engine oil
• Engine coolant
•Washer fluid
 Have a service technician inspect
the condition of the battery.
 Have the vehicle fitted with four
snow tires or purchase a set of tire
chains for the rear tires. *
Ensure that all tires are the specified size
and brand, and that chains match the size
of the tires. *
: Tire chains cannot be mounted on vehi-
cles with front and rear tires of differing
sizes.Winter driving tips Carry out the necessary prepara-
tions and inspections before driving
the vehicle in winter. Always drive
the vehicle in a manner appropriate
to the prevailing weather condi-
tions.
Preparation for winter
WARNING
■
Driving with snow tires
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in a loss of
vehicle control and cause death or seri-
ous injury.
●
Use tires of the specified size.
●
Maintain the recommended level of air
pressure. ●
Do not drive in excess of 75 mph (120
km/h), regardless of the type of snow
tires being used. ●
Use snow tires on all, not just some
wheels. ■
When installing tire chains
Before installing tire chains, make sure to
disable all functions of the vehicle height
control of the electronically modulated
air suspension. Otherwise, the vehicle
height may change while installing the
tire chains and part or your body may be
caught under the vehicle, possibly caus-
ing injury. ( → P.293)■
Driving with tire chains
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in the vehicle
being unable to be driven safely, and may
cause death or serious injury. ●
Do not drive in excess of the speed
limit specified for the tire chains being
used, or 30 mph (50 km/h), which-
ever is lower. ●
Avoid driving on bumpy road surfaces
or over potholes. ●
Avoid sudden acceleration, abrupt
steering, sudden br aking and shifting
operations that cause sudden engine
braking.
●
Slow down sufficiently before entering
a curve to ensure that vehicle control is
maintained.
●
Do not use LTA (Lane Tracing Assist)
system. (if equipped)
●
Do not use LKA (Lane-Keeping
Assist) system. (if equipped)

3095-1. Remote Touch/Display
LS500_OM_OM50F54U_(U) 5
Interior features Touch to turn the screen off.
Touch to lock the Rear Multi Oper-
ation Panel.
Touch to adjust the brightness of
the screen.
Touch to display the automatic
screen transition settings screen.
( → P.309)
Touch to display the rear seat
return function settings screen.
( → P.125)■
Auto screen change settings
screen
Touch 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. ■
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
hold the button to turn the Rear
Multi Operation Panel off, and then press
the button again to turn it back
on and operate it. ●
In the following situations, the Rear Multi
Operation Panel may not operate prop-
erly:
• If wearing gloves during operation, non
response may occur.
• If a wet hand is used to operate the Rear
Multi Operation Panel.
• If a screen cover or coating is applied to
on the Rear Multi Operation Panel.
• If the Rear Multi Operation Panel is dirty
or has liquid attached to it, incorrect
operation or non-response may occur.
• If the Rear Multi Operation Panel
receives electro magnetic waves, incor-
rect operation or non-response may
occur.
• If a mobile phone or other wireless com-
munication device br ought near the Rear A
B
C
D
E
A
B
C

314 5-3. Using the air conditioning system and defogger
LS500_OM_OM50F54U_(U) ■
Changing the air flow mode
→ P.316 ■
Switching between outside air and
recirculated air modes
Press the outside/recirculated air
mode switch. The mode changes as follows each time
the switch is pressed.
automatic mode → (outside air
mode) → (recirculated air mode)
→ automatic mode
When the system is switched to automatic
mode, the air conditioning system operates
automatically. ■
Defogging the windshield
Defoggers are used to defog the wind-
shield and front side windows.
Press the windshield defogger switch. Set the outside/reci rculated air mode
switch to outside air mode if the recircu-
lated air mode is used. (It may switch auto-
matically.)
To defog the windshield and the side win-
dows quickly, turn the air flow and tem-
perature up.
To return to the previous mode, press the
windshield defogger switch again when the
windshield is defogged.
■
Defogging the rear window and
outside rear view mirrors
Defoggers are used to defog the rear
window, and to remove raindrops, dew
and frost from the outside rear view
mirrors.
Press the rear window and outside rear
view mirror defoggers switch.
The defoggers will automatically turn off after a while. The operation time changes
according to the ambient temperature and
vehicle speed. ■
Windshield wiper de-icer (if
equipped)
→ P.319 ■
When the outside temperature exceeds
75°F (24°C) and the air conditioning
system is on ●
In order to reduce the air conditioning
power consumption, the air conditioning
system may switch to recirculated air
mode automatically. This may also
reduce fuel consumption. ●
It is possible to switch to outside air mode
at any time by pressing the outside/recir-
culated air mode switch. ■
Fogging up of the windows
The windows will easily fog up when the
humidity in the vehicle is high. Turning “A/C”
on will dehumidify the air from the outlets
and defog the windshield effectively. ●
If you turn “A/C” off, the windows may fog
up more easily. ●
The windows may fog up if the recircu-
lated air mode is used. ■
Outside/recirculated air mode ●
When driving on dusty roads such as tun-
nels or in heavy traffic, set the out-
side/recirculated air mode switch to the
recirculated air mode. This is effective in
preventing outside air from entering the
vehicle interior. During cooling opera-
tion, setting the recirc ulated air mode will
also cool the vehicle interior effectively.
●
Outside/recirculated air mode may auto-
matically switch depending on the tem-
perature setting or the inside
temperature.
■
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.

3155-3. Using the air conditio ning system and defogger
LS500_OM_OM50F54U_(U) 5
Interior features ●
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 electr onic 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 condit ioning performance,
perform the following operations: ●
Turn off eco air conditioning mode
( → P.316) ●
Adjust the fan speed●
Turn off Eco drive mode ( → P.289)
■
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 pe riod 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.468)
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.

316 5-3. Using the air conditioning system and defogger
LS500_OM_OM50F54U_(U) ■
Main control screen
Using the touchpad of the Remote
Touch, select the button on the screen.
to and can be adjusted by
performing the following operations.
Flick operation: Move the pointer to
the desired item and flick the touchpad
up or down. The item can be adjusted by one level.
Trace operation: After selecting the
desired item, trace the pad surface. The item can be adjusted by the amount
that you trace.
Trace operation cannot be used while driv-
ing. 
Vehicles with DUAL-ZONE climate
control
Sub menu Selecting the sub menu item to switch the
main screen.
: Display the air conditioning control screen
: Display the heated steering
wheel/front seat heater /front seat ventila-
tor control screen (if equipped)
: Display the rear seat heater/rear seat
ventilator control screen (if equipped)
: Display the Lexus Climate Con-
cierge control screen
: Display the option control screen
Adjust the left side seat tempera-
ture setting
Adjust the fan speed setting
Select the air flow mode : Air flows to the upper body
: Air flows to the upper body and feet
: Air flows to the feet
: Air flows to the feet and the wind-
shield defogger operates
Adjust the right side seat tempera-
ture setting
Function on/off indicators When the function is on, the indicator illu-
minates on the control screen.
Sub function menu When the sub function button on the
Remote Touch is pressed, the following
functions can be switched on and off.
: Set Lexus Climate Concierge
( → P.311)
“AUTO”: Set automatic mode on/off
( → P.320)
“OFF”: Turn the fan off NOTICE■
To prevent battery discharge
Do not leave the air conditioning system
on longer than necessary when the
engine is off.
Air conditioning control screen B E H
A B
C
D
E
F
G

3215-3. Using the air conditio ning system and defogger
LS500_OM_OM50F54U_(U) 5
Interior features To enable/disable S-FLOW mode and
enter manual S-FLOW mode, select the
S-FLOW mode switch. 
Manual S-FLOW mode
When the S-FLOW mode switch is
selected, S-FLOW mode will be manu-
ally enabled/ disabled. The indicator will illuminate on the air con-
ditioning control screen when S-FLOW
mode is enabled. ■
Operation of the air conditioning sys-
tem in S-FLOW mode
If the front passenger’s door or a rear door
is opened then closed, the air conditioning
system determines that a passenger is in the
vehicle. In this case, priority for the airflow
will be changed from th e driver’s seat only
to the front seats only or all seats, respec-
tively.
(Depending on the set temperature or
ambient temperature, priority for the air-
flow may not be given to the driver’s seat
only.)
If a passenger is judged to be in the vehicle,
the system will retain the judgement for a
certain amount of time after the engine
switch is turned off. ■
Operation of automatic S-FLOW mode
When the system is operating in automatic
S-FLOW mode, if a rear door is opened
and then closed, S-FLOW mode will be dis-
abled. To enable S-FL OW mode, select the
S-FLOW mode switch.
■
Changing from manual S-FLOW mode
to automatic S-FLOW mode
1 Select the S-FLOW mode switch to dis-
able S-FLOW mode.
2 Turn the engine switch off.
3 After 60 minutes have elapsed, change
the engine switch to 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.316)
 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.316)
 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

3255-3. Using the air conditio ning system and defogger
LS500_OM_OM50F54U_(U) 5
Interior features 
Rear Multi Operation Panel
1 Select “AUTO” on the rear air con-
ditioning control screen. ( → P.324)
2 To stop the operation, select “OFF”
on the rear air co nditioning control
screen. ( → P.323)
If the fan speed setting or air flow
modes are operated , the automatic
mode indicator goes off. However,
automatic mode for functions other
than that operated is maintained. ■
Using automatic mode
Fan speed is adjusted automatically accord-
ing to the temperature setting and the
ambient conditions.
Therefore, the fan may stop for a while until
warm or cool air is ready to flow immedi-
ately after “Rear AUTO” is selected or
“AUTO” is touched.
Cool air may blow around the upper body
even when the heater is on due to sunlight.
The temperature setting of the rear
seats can be adjusted using the follow-
ing methods:
 When the “4-ZONE” indicator is
off: Adjust the driv er’s seat tempera-
ture. Adjust the temperature setting of each
rear seat using the Center Display or Rear
Multi Operation Panel.
 Adjust the temperature setting of
each rear seat using the Center Dis-
play (rear air conditioning control
screen) or Rear Multi Operation
Panel. The temperature setting of each rear seat
can be changed independently.
■
Rear center outlets and rear side
outlets
1 Direct air flow to the left or right, up
or down
2 Turn the knob to open or close the
vent
Adjusting the temperature set-
ting of the rear seats Air outlet layout and operations
NOTICE■
To prevent battery discharge
Do not leave the air conditioning system
on longer than necessary when the
engine is off.

3275-3. Using the air conditio ning system and defogger
LS500_OM_OM50F54U_(U) 5
Interior features ■
Center Display 
Main screen
Using the touchpad of the Remote
Touch, select the button on the screen.
to can be adjusted by perform-
ing the following operations.
Flick operation: Move the pointer to
the desired item and flick the touchpad
up or down. The item can be adjusted by one level.
Trace operation: After selecting the
desired item, trace the touchpad sur-
face. The item can be adjusted by the amount
that you trace.
Trace operation cannot be used while driv-
ing. Adjust the seat ventilator fan speed
level The seat ventilator can be adjusted in 3 lev-
els. (Low, Mid or Hi)
Adjust the seat heater temperature
level The seat heater can be adjusted in 3 levels.
(Low, Mid or Hi)
Adjust the heated steering wheel
temperature level *
The heated steering wheel can be adjusted
in 2 levels. (Low or Hi)
Automatic mode on/off indicators When the automatic mode is on, the indi-
cator illuminates on the screen.
Sub function menu When the sub function button on the
Remote Touch is pressed, the following
functions can be set to automatic mode.
: Left-hand side seat heater/seat
ventilator
: Heated steering wheel *
: Right-hand side seat heater/seat
ventilator *
: Available on the front seat control
screen only 
Side screen
Display the air conditioning control
screen → P.319NOTICE■
To prevent damage to the seat heat-
ers and seat ventilators
Do not put heavy objects that have an
uneven surface on the seat and do not
stick sharp objects (needles, nails, etc.)
into the seat. ■
To prevent battery discharge
Do not use the functions when the
engine is off.
Control screen A C A
B
C
D
E
A

3295-3. Using the air conditio ning system and defogger
LS500_OM_OM50F54U_(U) 5
Interior features Enables/Disables the automatic
mode of the rear seat heaters
Decreases the rear seat heater
temperature levelIf 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 wheel can be used
when
The engine switch is in IGNITION ON
mode. ■
Air conditioning system-linked control
mode
When the seat ventilato r fan speed level is
Hi, the seat ventilator fan speed becomes
higher according to the fan speed of the air
conditioning system. ■
Customization
Some functions can be customized.
( → P.468)
WARNING■
To prevent overheating and minor
burn injuries
Observe the following precautions when
using the seat heaters. ●
Do not cover the seat with a blanket or
cushion when using the seat heater.
●
Do not use seat heater more than nec-
essary. B
C