ignition lexus LC500 2019 / LEXUS 2019 LC 500,LC 500H (OM11471U) Service Manual

2495-3. Using the air conditioning system
5
Interior features
■Setting the fan speed
Operate the fan speed control switch
upwards to increase the fan speed and
downwards to decrease the fan speed.
Press the off switch to turn the fan off.
■Changing the air flow mode
 P.251
■Switching between outside air and
recirculated air modes
Operate the outside/recirculated air
mode switch upwards or downwards.
The mode changes as follows each
time the switch is operated.
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 early, turn the air flow and tempera-
ture 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 15 to 60 minutes. The operation time
changes according to the ambient tem-
perature and vehicle speed.
■Windshield wiper de-icer (if
equipped)
 P.253
■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.
●Recirculated air mode is selected as a
default mode when the engine switch
is turned to IGNITION
ON mode .
●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

2505-3. Using the air conditioning system
also cool the vehicle interior effectively.
●Outside/recirculated air mode may auto-
matically switch de pending on the tem-
perature setting or the inside
temperature.
■Registering air condit ioning settings to
electronic keys
●Unlocking the vehicle using an electronic
key and turning the engine switch switch> to IGNITION ON mode mode> will recall that key’s registered air
conditioning settings.
●When the engine 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 electr onic key is in the
vicinity or if the smart access system with
push-button start is used to unlock the
passenger 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 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 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.251)
●Adjust the fan speed
●Turn off Eco drive mode ( P.213)
■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 fresh air intake mode to
encourage better air circulation through-
out 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 SYSTEM OWNER’S
MANUAL”.
■Air conditioning filter
 P.316
■Customization
Settings (e.g. A/C Auto switch operation)
can be changed.
(Customizable features P.391)

2575-3. Using the air conditioning system
5
Interior features
Display the air conditioning control
screen (P.251)
Adjust the seat heater temperature
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 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
Adjust the heated steering wheel
temperature level
Each time the switch is selected, the tem-
perature level and le vel indicator change
as follows:
AUTO  Hi  Lo  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 may
become higher according to the fan speed
of the air conditioning system.
■Customization
Steering wheel heating preference in auto-
matic mode and the automatic mode set-
tings for the seat heat ers and ventilators can
be changed. (Customizable features:
 P.391)
A
B
C
D
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.

2645-6. Using the other 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 “NAVIGATION
SYSTEM OWNER’S MANUAL”.
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 is in
ACCESSORY or IGNITION ON mode
.
■Using the power outlet
The shape of the console box partition
allows power cables to be passed through
when the console box lid is partially closed.
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 tem> is off.
Clock
Power outlet

2896-3. Do-it-yourself maintenance
6
Maintenance and care
Engine oil level
( P.293)
• “Toyota Genuine Motor
Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses
( P.319)•Fuse with same amper-
age rating as original
Headlight aim• Phillips-head screw-driver
Light bulbs
( P.324)
Radiator and
condenser
( P.297)

Tire inflation
pressure
( P.313)• Tire pressure gauge
• Compressed air source
Washer fluid
( P.298)
• Water or washer fluid
containing antifreeze
(for winter use)
• Funnel (used only for adding water or washer
fluid)
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, clothi ng and tools away
from the moving fan and engine drive
belt.
ItemsParts and tools●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.
■When working near the electric cool-
ing fan or radiator grille
Be sure the engine switch switch> is off.
With the engine switch in
IGNITION 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.297)
■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.

3066-3. Do-it-yourself maintenance
properly. After driving for about 20 min-
utes, the tire pressure warning light blinks
for 1 minute and stays on to indicate a sys-
tem 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.308)
When the tire pressure warning system
is initialized, the cu rrent 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 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 switch> to IGNITION ON mode
.
4 Press or of the meter con-
trol switches and select .
5 Press or of the meter con-
trol switches and select “Vehicle
Settings”, then press “OK”.
6 Press or of the meter con-
trol switches and select “TPWS
SET”, then press “OK”.
7 Press or of the meter con-
trol switches and select “Set tire
pressure”. 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
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 your
Lexus dealer as the tire pressure warn-
ing valves and transmitters may be
damaged 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

3076-3. Do-it-yourself maintenance
6
Maintenance and care
warning system determines the position.
8Drive the vehicle at approximately
25mph (40 km/h) 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 ou t initialization after
adjusting the tire inflation pressure.
Also, make sure the tires are cold before
carrying out initializat ion or tire inflation
pressure adjustment.
●If you have accidentally turned the engine
switch off during initial-
ization, it is not necessary to manually
restart the initializatio n again, as initializa-
tion will restart automatically the next
time the engine switch is
turned to IGNITION ON mode mode>.
●If you accidentally perform initialization
when initialization is not necessary, adjust
the tire inflation pres sure 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 initia lization, drive on a
paved road if possible. Depending on the
driving environment and 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 25 mph (40
km/h) 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
pressure warning light does not blink 3
times. (Initialization will not occur while
driving)
●After performing init ialization, the tire
pressure warning light blinks for 1 minute
then stays on after driving for about 20
minutes.
If the inflation pressure of each tire is still not
displayed, have the vehicle inspected by
your Lexus dealer.
■When registering ID codes
●Initialize the tire pressure warning system
after ID code registra tion. Initialization is
disabled if the system was initialized
before registration.
●After ID code registration, the tires are
hot by driving. Initia lize the tire pressure
warning system after the tires become
cold.

3086-3. Do-it-yourself maintenance
The tire pressure warning valve and
transmitter is equipped with a unique
ID code. When replacing a tire pres-
sure warning valve and transmitter, it is
necessary to register the ID code.
When registering the ID codes, per-
form the following procedure.
1Turn the engine switch switch> to IGNITION ON mode
.
2 Press or of the meter con-
trol switches and select .
3 Press or of the meter con-
trol switches and select “Vehicle
Settings”, then press “OK”.
4 Press or of the meter con-
trol switches and select “TPWS
SET”, then press “OK”.
5 Press or of the meter con-
trol switches and select “Change
wheel set”. Then press and hold
“OK” until the tire pressure warning
light starts blinking.
The change wheel set mode is activated
and registration is started. A message is displayed on the multi-infor-
mation display, and “--” is displayed for
inflation pressure of each tire. Then, the tire
pressure warning light blinks rapidly for
approximately 1 minute and stays on.
6
Drive the vehicle at 25mph (40
km/h) or more for approximately
10 to 30 minutes.
When registration is completed, the tire
pressure warning light will go off and the
inflation pressure of each tire will be dis-
played on the multi-information display.
The time elapsed before registration is
completed differs according to the driving
condition and environment.
■Canceling the change wheel set mode
●If turning the engine switch switch> off when in the change wheel set
mode before driving, the change wheel
set mode is canceled.
●After driving when in the change wheel
set mode, the change wheel set mode
cannot be canceled. To cancel the mode,
perform the procedure for ID code regis-
tration again and turn the engine switch
off before driving.
●If the change wheel set mode is canceled,
the ID codes that have already been reg-
istered are communicated. When com-
munication is finished, the tire pressure
warning light will turn off.
■When ID code registration may not
operate properly
●Do not move the vehicle backward
during registration. Re gistration is started
again from the beginning and it may take
longer than usual.
WARNING
■When initializing the tire pressure
warning system
Do not initialize tire inflation pressure
without first adjusting the tire inflation
pressure to the spec ified level. Other-
wise, the tire pressure warning light may
not come on even if the tire inflation pres-
sure is low, or it may come on when the
tire inflation pressure is actually normal.
Registering ID codes

3327-2. Steps to take in an emergency
vehicle, the towing eyelet must be
installed to your vehicle. Install the tow-
ing eyelet using the following proce-
dure.
1Take out the screwdriver and the
towing eyelet. ( P.310)
2 Remove the eyelet cover using a
flathead screwdriver.
To protect the bodywork, place a rag
between the screwdriver and the vehicle
body as shown in the illustration.
3Insert the towing eyelet into the
hole and tighten partially by hand. 4
Tighten down the towing eyelet
securely using the screwdriver or
hard metal bar.
5 Securely attach cables or chains to
the towing eyelet.
Take care not to damage the vehicle body.
6Enter the vehicle being towed and
start the engine .
If the engine does not
start, turn the engine switch switch> to IGNITION ON mode mode>.
7Shift the shift position to N and
release the parking brake.
■While towing
If the engine is not running off>, the power assist for the brakes and
steering will not function, making steering
and braking more difficult.

3397-2. Steps to take in an emergency
7
When trouble arises
■Brake system warning light
■Low fuel level warning light
■Driver’s and front passenger’s seat belt reminder light (warning buzzer)*
*: Driver’s seat belt buzzer:
The driver’s seat belt buzzer sounds to alert th e driver that his or her seat belt is not fas-
tened. Once the engine switch is turned to IGNITION ON mode mode>, the buzzer sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20
km/h), the buzzer sounds once. If the seat belt is still unfastened afte r 24 seconds, the
buzzer will sound interm ittently for 6 seconds. Then, if the seat belt is still unfastened, the
buzzer will sound in a different tone for 90 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer sounds to alert the front passenger that his or her
seat belt is not fasten ed. The buzzer sounds once if the vehicle reaches a speed of 12 mph
(20 km/h). If the seat belt is still unfastened after 24 seconds, the buzzer will sound inter-
mittently for 6 seconds. Then, if the seat belt is still unfastened, the buzzer will sound in a dif-
ferent tone for 90 more seconds.
Warning lightWarning light/Details/Actions
(yellow)
Indicates a malfunction in:
 The electronically controlled brake system
 The regenerated braking system (LC500h)
 The parking brake system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details/Actions
Indicates that remaining fuel is approximately 3.3 gal. [12.6 L, 2.8
Imp.gal.] or less
 Refuel the vehicle.
Warning lightWarning light/Details/Actions
Warns the driver and/or front passe nger to fasten their seat belts
 Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s seat
belt also needs to be fastened to make the warning light (warning
buzzer) turn off.