ignition lexus LC500 2018 Service Manual

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5-3. Using the air conditioning system
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 <power
switch> to IGNITION ON mode <ON mode> will recall that key’s registered air conditioning settings.
●When the engine switch <power switch> is turned off, the current air conditioning
settings will automatically 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 entry & start system is used to unlock the passenger door.
●The doors that can recall the air condi-
tioning setting* when unlocked using the
smart entry & start system can be changed. For details, contact any autho-rized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.*: The doors that can recall the driving posi-
tion 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 restrict heating/cooling capacity
●Fan speed restricted when automatic mode is selected
To improve air conditioning performance, perform the following operations:
●Adjust the fan speed
●Turn off Eco drive mode ( P.242)
■When the outside temperature falls to
nearly 0°C (32°F)
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.
●When parking, the system automatically switches to fresh air intake mode to encourage better air circulation through-
out the vehicle, helping to reduce odors that occur when starting the vehicle.
■Air conditioning filter
 P.347
■Customization
Settings (e.g. A/C auto switch operation) can be changed.(Customizable features P.423)
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.

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5-3. Using the air conditioning system
Interior features
Adjust the seat ventilator fan speed
level
The seat ventilator can be adjusted in 3 lev-
els.
When the seat ventilator is operated, the
fan speed level is displayed on the screen.
Adjust the seat heater temperature
level
The seat heater can be adjusted in 3 levels.
When the seat heater is operated, the tem-
perature level is displayed on the screen.
Adjust the heated steering wheel
temperature level
The heated steering wheel can be adjusted
in 2 levels.
When the heated steering wheel is oper-
ated, the temperature level is displayed on
the screen.
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
■Side display
Display the air conditioning control
screen ( P.283)
Adjust the seat heater temperature
level
Each time the switch is selected, the tem-
perature level and level indicator (orange)
change as follows:
AUTO  Hi  Mid  Lo  Off
Adjust the 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
Adjust the heated steering wheel
temperature level
Each time the switch is selected, the tem-
perature level and level indicator change
as follows:
AUTO  Hi  Lo  Off
■The heated steering wheel, seat heaters and seat ventilators can be used when
The engine switch <p ower switch> is in IGNITION ON mode <ON mode>.
■Air conditioning system-linked control mode
When the seat ventilator fan speed level is Hi, the seat ventilator fan speed becomes
A
B
C
D
E
A
B
C
D

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5-6. Using the other interior features
Interior features
5-6.Using the other interior features
1To set the visor in the forward posi-
tion, flip it down.
2 To set the visor in the side position,
flip down, unhook, and swing it to
the side.
Open the cover.
The light turns on when the cover is
opened.
The GPS clock’s time is automatically
adjusted by utilizing GPS time infor-
mation.
For details, refer to the “NAVIGA-
TION SYSTEM OWNER’S MAN-
UAL”.
Please use as a power supply for elec-
tronic goods that use less than 12
VDC/10 A (power consumption of
120 W).
Open the lid.
■The power outlet can be used when
The engine switch <p ower switch> is in ACCESSORY or IGNITION ON mode
<ON mode>.
Other interior features
Sun visors
Vanity mirrors
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the engine <hybrid sys-
tem> is off.
Clock
Power outlet

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5-6. Using the other interior features
Interior features
*: If equipped
Microphone
“SOS” button
Indicator lights
■Automatic Collision Notification
If any airbag deploys, the system is
designed to automatically call the Pub-
lic Safety Answering Point (PSAP)*.
The responding agent receives the
vehicle’s location and attempts to
speak with the vehicle occupants to
assess the level of emergency. If the
occupants are unable to communicate,
the agent automatically treats the call
as an emergency, contacts the nearest
emergency services provider to
describe the situation, and requests
that assistance be sent to the location.
*: In some cases, the call cannot be made.
( P.300)
■Emergency Assistance Button
(“SOS”)
In the event of an emergency, push the
“SOS” button to reach the Public
Safety Answering Point (PSAP). The
answering agent will determine your
vehicle’s location, assess the emer-
gency, and dispatch the necessary
assistance required.
If you accidentally press the “SOS” button,
tell the agent that you are not experiencing
an emergency.
When the engine switch <power
switch> is turned IGNITION ON
mode <ON mode>, the red indicator
light will illuminate for 10 seconds and
then the green indicator light will illumi-
nate for 2 seconds, indicating that the
system is enabled. The indicator lights
indicate the following:
 If the green indicator light illumi-
nates and stays on, the system is
ERA-GLONASS*
ERA-GLONASS is a telematics
service that uses Global Naviga-
tion Satellite System (GLONASS)
data and embedded cellular tech-
nology to enable the following
emergency calls to be made: Auto-
matic emergency calls (Automatic
Collision Notification) and manual
emergency calls (by pressing the
“SOS” button). This service is
required by Eurasian Customs
Union Regulations.
System components
Emergency Notification Ser-
vices
A
B
C
Indicator lights

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5-6. Using the other interior features
enabled.
 If the green indicator light flashes, an
emergency call is being made
(either automatically or manually).
 If no indicator lights illuminate, the
system is not enabled.
 If the red indicator light illuminates
any time other than immediately
after the engine switch <power
switch> is turned IGNITION ON
mode <ON mode>, the system may
be malfunctioning or the backup
battery may be depleted. Contact
any authorized Lexus retailer or
Lexus authorized repairer, or any
reliable repairer.
The service life of the backup battery is 3
years or more.
WARNING
■When the Emergency Call may not be made
●Any of the followings may occur. In such cases, report to the Public Safety
Answering Point (PSAP) by other means such as nearby public phones.
• It may sometimes be difficult to con- nect to the Public Safety Answering Point (PSAP) even in the reception
area of the cellular phone due to the reception level, or if the line is busy.In such cases, you may not be able to
connect to the Public Safety Answer- ing Point (PSAP) and thus will not be able to make emergency calls and
report to the emergency departments even though the system tries to con-nect to the Public Safety Answering
Point (PSAP).
• When the vehicle is out of the cellular
phone service area, the Emergency Call cannot be made.
• When any related equipment (such as the “SOS” button panel, indicator lights, microphone, speaker, DCM,
antenna, or any wires connecting the equipment.) has an abnormality, is damaged or broken, the Emergency
Call cannot be made.
• During the Emergency Call, the sys-
tem makes repeated attempts to con- nect to the Public Safety Answering Point (PSAP). However, if it cannot
connect to the Public Safety Answer- ing Point (PSAP) due to poor radio wave reception, the system may not be
able to connect to the cellular network and the call may finish without con-necting. The red indicator light will
blink for approximately 30 seconds to indicate this disconnection.
• This device may not function if a shock is applied to it.

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5-6. Using the other interior features
Interior features
WARNING
●If the 12-volt battery’s voltage decreases or there is a disconnection, the system may not be able to access
the Public Safety Answering Point (PSAP).
■When replacing DCM to a new one
ERA-GLONASS have to be activated. Contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.
■For your safety
●Please drive safely.The function of this system is to assist
you in making the Emergency Call in case of accidents as traffic accidents or sudden medical emergencies, and it
does not protect the driver or the pas- sengers in any way. Please drive safely and fasten your seatbelts at all times
for your safety.
●In case of an emergency, make lives the top priority.
●If you smell anything burning or another unusual smell, do not stay
inside the vehicle and evacuate to a safe area immediately.
●Since the system detects shocks, the automatic reporting may not always
occur synchronized with the operation of the airbag system. (If the vehicle is bumped from behind, etc.)
●The airbag may not inflate even in case
of an accident, if it does not involve high impact. In such cases, the system may not make emergency calls auto-
matically. The system may also not make automatic emergency calls even if the airbag has been inflated. If any of
these should occur, please report to the Public Safety Answering Point (PSAP) by operating the “SOS” but-
ton.
●For safety, do not make the Emergency Call while driving.
Making calls during driving may cause mishandling of th e steering wheel, which may lead to unexpected acci-
dents. Stop the vehicle and confirm the safety of the area before making the Emer-
gency Call.
●When changing fuses, please use fuses that correspond to the described stan-dard.
If you use fuses other than those described, it may cause ignition or smoke in the circuit and may lead to a
fire.
●Using the system while there is smoke or an unusual smell may cause a fire. Stop using the system immediately and
consult any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
NOTICE
■To prevent damage
Do not pour any liquid on to the “SOS”
button panel etc. and make any impact to it.
■If the “SOS” button panel malfunc-tions
It may not be able to make the Emer-
gency Call or inform you of the correct condition of the system. If the “SOS” but-ton panel has been broken, please con-
sult any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.

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6-3. Do-it-yourself maintenance
Maintenance and care
WARNING
The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become elec-
trically energized. To avoid death or seri- ous injury, observe the following precautions.
■When working on the engine com-
partment
●LC500h: Make sure that the “IGNI-
TION ON” on the multi-information display and the “READY” indicator are both off.
●Keep hands, clothing and tools away
from the moving fan and engine drive belt.
●LC500: Be careful not to touch the engine, radiator, exhaust manifold, etc.
right after driving as they may be hot. Oil and other fluids may also be hot.LC500h: Be careful not to touch the
engine, power control unit, radiator, exhaust manifold, etc. right after driv-ing as they may be hot. Oil and other
fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine compartment.
●Do not smoke, cause sparks or expose
an open flame to fuel. Fuel fumes are flammable.
●Take care because brake fluid can harm your hands or eyes and damage
painted surfaces. If fluid gets on your hands or in your eyes, flush the affected area with clean water imme-
diately. If you still experience discomfort, con-sult a doctor.
■When working near the electric cool-ing fan or radiator grille
Be sure the engine switch <power switch> is off.
With the engine switch <power switch> in IGNITION ON mode <ON mode>, the electric cooling fan may automatically
start to run if the air conditioning is on and/or the coolant temperature is high. ( P.323)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from get-
ting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter
removed may cause excessive engine wear due to dirt in the air.
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or when the fluid level in the accumulator is
high. If the reservoir needs frequent refilling, it may indicate a serious problem.

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6-3. Do-it-yourself maintenance
Maintenance and care
Vehicles with front and rear tires of
the same size
Vehicles with front and rear tires of
differing sizes
To equalize tire wear and help extend tire
life, Lexus recommends that tire rotation is
carried out approximately every 10000
km (6000 miles).
Do not fail to initialize the tire pressure
warning system after tire rotation.
■When rotating the tires
Make sure that the engine switch <power switch> is off. If the tires are rotated while
the engine switch <power switch> is in IGNITION ON mode <ON mode>, the tire position information will not be updated.
If this accidentally occurs, either turn the engine switch <power switch> to off and then to IGNITION ON mode <ON mode>,
or initialize the tire pr essure warning system after checking that the tire pressure is prop-erly adjusted.
When run-flat tires are installed, the
vehicle can be driven for a maximum of
160 km (100 miles) at a speed below
80 km/h (50 mph) after any tire goes
flat. (However, the vehicle speed may
not increase to near 80 km/h [50
mph] depending on weather or driving
conditions.)
A run-flat tire has a mark on
the side wall.
Make sure to replace the flat tire before the
vehicle has been driven for near 160 km
(100 miles). Also, do not use a repaired
tire.
■Run-flat tires
●The run-flat tires are for only this vehicle. Do not use the tires on other vehicles.
●Do not mix run-flat tires and normal tires.
●If non-genuine Lexus wheels are used, it
may be impossible to sufficiently demon- strate the performanc e of run-flat tires.
Your vehicle is equipped with a tire
pressure warning system that uses tire
pressure warning valves and transmit-
ters to detect low tire inflation pressure
before serious problems arise.
 If the tire pressure drops below a
predetermined level, the driver is
warned by a screen display and a
warning light. ( P.374)
 The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
Run-flat tires
Tire pressure warning system

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6-3. Do-it-yourself maintenance
Maintenance and care
When replacing tires or wheels, tire
pressure warning valves and transmit-
ters must also be installed.
When new tire pressure warning
valves and transmitters are installed,
new ID codes must be registered in the
tire pressure warning computer and
the tire pressure warning system must
be initialized. ( P.337)
■When replacing the tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not registered, the tire pressure warning system will not work
properly. After driving for about 10 minutes, the tire pressure warning light blinks for 1 minute and stays on to indicate a system
malfunction.
■The tire pressure warning system
must be initialized in the following
circumstances:
 When rotating the tires.
 When the tire inflation pressure is
changed when changing traveling
speed.
 When the tire inflation pressure is
changed such as when changing tire
size. (When there are multiple spec-
ified pressures)
 After registering the ID codes.
( P.337)
When the tire pressure warning system
is initialized, the current tire inflation
pressure is set as the benchmark pres-
sure.
■How to initialize the tire pressure
warning system
1 Park the vehicle in a safe place and
turn the engine switch <power
switch> off.
Initialization cannot be performed while the vehicle is moving.
2 Adjust the tire inflation pressure to
the specified cold tire inflation pres-
sure level.
Make sure to adjust the tire pressure to the specified cold tire infl ation pressure level. The tire pressure warning system will oper-
ate based on this pressure level.
3 Turn the engine switch <power
switch> to IGNITION ON mode
<ON mode>.
Installing tire pressure warning
valves and tr ansmitters
NOTICE
■Repairing or replacing tires, wheels, tire pressure warning valves, trans-
mitters and tire valve caps
●When removing or fitting the wheels,
tires or the tire pressure warning valves and transmitters, contact any
authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer as the tire pressure warning
valves and transmitters may be dam- aged if not handled correctly.
●Make sure to install the tire valve caps. If the tire valve caps are not installed,
water could enter the tire pressure warning valves and the tire pressure warning valves could be bound.
●When replacing tire valve caps, do not
use tire valve caps other than those specified. The cap may become stuck.
Initializing the tire pressure
warning system

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6-3. Do-it-yourself maintenance
4Press or of the meter con-
trol switches and select .
5 Press or of the meter con-
trol switches and select “Vehicle
Settings”, and then press “OK”.
6 Press or of the meter con-
trol switches and select “TPWS
SET”, and then press “OK”.
7 Press or of the meter con-
trol switches and select “Set tire
pressure”, and then press and hold
“OK” until the tire pressure warning
light starts blinking.
A message is displayed on the multi-infor- mation display. Also, “--” is displayed for inflation pressure of each tire on the multi-
information display while the tire pressure warning system determines the position.
8 Drive the vehicle at approximately
40 km/h (25mph) or more for
approximately 10 to 30 minutes.
When initialization is complete, the infla- tion pressure of each tire will be displayed on the multi-information display.
Depending on the vehicle and driving con- ditions, initialization may take up to
approximately 1 hour to complete.
■The initialization operation
●Make sure to carry out initialization after
adjusting the tire inflation pressure. Also, make sure the tires are cold before carrying out initialization or tire inflation
pressure adjustment.
●If you have accidentally turned the engine
switch <power switch> off during initial- ization, it is not ne cessary to manually restart the initializatio n again, as initializa-
tion will restart automatically the next time the engine switch <power switch> is turned to IGNITION ON mode <ON
mode>.
●If you accidentally perform initialization
when initialization is not necessary, adjust the tire inflation pressure to the specified level when the tires are cold, and conduct
initialization again.
●While the position of each tire is being
determined and the inflation pressures are not being displayed on the multi-information display, if the inflation pres-
sure of a tire drops, the tire pressure warning light will come on.
■When initialization of the tire pressure warning system has failed
Initialization may take longer to complete if
the vehicle is driven on an unpaved road. When performing initialization, drive on a paved road if possible. Depending on the
driving environment an d condition of the tires, initialization will be completed in approximately 10 to 30 minutes. If initializa-
tion is not complete after driving approxi- mately 10 to 30 minutes, continue driving for a while. If the inflation of each tire is not
displayed after driving for approximately 1 hour, perform the following procedure.
●Park the vehicle in a safe place for approximately 20 minutes. Then drive straight (with occasional left and right
turns) at approximately 40 km/h (25 mph) or more for approximately 10 to 30 minutes.
However, in the following situations, the tire
inflation pressure will not be recorded and
the system will not operate properly. Per-
form initialization again.
●When performing init ialization, the tire