ignition LEXUS LS500H 2020 Workshop Manual

3515-6. Using the other interior features
5
Interior features
Rear quarter sunshade (if
equipped)
Rear door sunshade
1 Extend
2 Retract
*
*: If the driver’s power window switch is
operated when a rear door sun-
shade/rear quarter sunshade is
retracted or being retracted, the rear
window will open.
■From rear seat
The rear seat power window switches
cannot be used to extend the rear door
sunshades/rear quarter sunshades.
Rear shade/lamp control screen
1 Display the home screen and then
touch “Shade/Lamp”. ( P.312)
2 To fully extend/retract a rear
door/rear quarter sunshade, touch
the respective button.
Shortcut screen
To fully extend/retract a rear door/rear
quarter sunshade, touch the respective
button.
■Operating conditions
●The engine switch is in IGNITION ON
mode.
●The rear side window s are fully closed.
■Operation of rear door sunshades/rear
quarter sunshades when extended
If a rear door power window switch is oper-
ated when the rear door sunshade/rear
quarter sunshade is extended, the rear door
sunshade/rear quarter sunshade will retract
while the rear window is opening.
■Operating the rear door/rear quarter
sunshades after turning the engine
switch off
The rear door/rear quarter sunshades can
be operated for a while even after the
engine switch is turned to ACCESSORY
mode or off.
However, they cannot be operated using
the driver’s power window switch after
either front door is opened.
■Jam protection function
If an object becomes caught between a rear
door sunshade and the window frame, the
rear door sunshade will stop and then
extend/retract slightly.
■When reconnecting the battery
The rear door/rear quarter sunshades will
always be retracted the first time the button
is pressed.
A
B

3535-6. Using the other interior features
5
Interior features
shade, touch the respective button.
■The rear sunshade can be used when
The engine switch is in IGNITION ON
mode.
■Operating the rear sunshade after turn-
ing the engine switch off
The rear sunshade can be operated for a
while even after the engine switch is
switched to ACCESSORY mode or turned
off.
■Reverse operation feature
To ensure adequate rear visibility, the rear
sunshade automatically lowers when the
shift position is shifted to R.
However, the rear sunshade is raised again
if any of the following occurs:
●The switch is pressed again.
●The shift position is shifted to P.
●The shift position is sh ifted out of P and R,
and the vehicle reaches a speed of 9 mph
(15 km/h).
If the engine is turned off when the rear sun-
shade has been lowered due to the reverse
operation feature, it w ill not be raised even
when the engine is turned on again and the
vehicle reaches a speed of 9 mph (15
km/h). To raise the su nshade again, press
the switch.
WARNING
■When the rear sunshade is being
extended or retracted
Do not place fingers or other objects in
the shade mechanism or in the opening
as injury may result.
NOTICE
■To ensure normal operation of the
sunshade
Observe the following precautions:
●Do not place excessive load on the
motor or other components.
●Do not place objects where they may
hinder opening and closing opera-
tions.
●Do not attach items to the rear sun-
shade.
●Keep the opening clean and clear of
obstructions.
●Do not operate the rear sunshade con-
tinuously for long periods of time.

3746-3. Do-it-yourself maintenance
Tire inflation pres-
sure (P.399)• Tire pressure gauge
• Compressed air
source
Washer fluid
( P.384)
• Water or washer
fluid containing anti-
freeze (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
●Keep hands, clothi ng and tools away
from the moving fan and engine drive
belt.
●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.
●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 is off.
With the engine switch in IGNITION
ON mode, the electric cooling fan may
automatically start to run if the air condi-
tioning is on and/or the coolant tempera-
ture is high. ( P.383)
ItemsParts and tools■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.

3896-3. Do-it-yourself maintenance
6
Maintenance and care
Lexus recommends that tire rotation is car-
ried out at the same interval as tire inspec-
tion.
Do not fail to initialize the tire pressure
warning system after tire rotation.
Vehicles with front and rear tires of
differing sizes
Tires cannot be rotated.
When run-flat tires are installed, the
vehicle can be driven for a maximum of
100 miles (160 km) at a speed below
50 mph (80 km/h) after any tire goes
flat. (However, the vehicle speed may
not increase to near 50 mph [80
km/h] depending on weather or driv-
ing conditions.)
A run-flat tire has a mark on
the side wall.
Make sure to replace th e flat tire before the
vehicle has been driven for near 100 miles
(160 km). 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. 
The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. ( P.80)
 If the tire pressure drops below a
predetermined level, the driver is
warned by a screen display and a
warning light. ( P.423)
■Routine tire inflation pressure checks
The tire pressure warning system does not
replace routine tire inflation pressure
checks. Make sure to check tire inflation
pressure as part of your routine of daily
vehicle checks.
■Tire inflation pressure
●It may take a few minutes to display the
tire inflation pressu re after the engine
switch is turned to IGNITION ON mode.
It may also take a few minutes to display
the tire inflation pressure after inflation
pressure has b een adjusted.
●Tire inflation pressure changes with tem-
perature. The displaye d values may also
be different from the values measured
using a tire pressure gauge.
Run-flat tires
Tire pressure warning system

3936-3. Do-it-yourself maintenance
6
Maintenance and care
■Initialization procedure
●Make sure to perform the initialization
procedure after adjusting the tire inflation
pressure.
Also, make sure the tires are cold before
performing the initialization procedure or
adjusting the tire inflation pressure.
●If the engine switch is turned off during
initialization, it is not necessary to restart
the initialization procedure from the
beginning as it will begin automatically
when the engine switch is turned back to
IGNITION ON mode.
●If initialization has accidentally been
started when it is not necessary, adjust
the tire inflation pressure to the specified
level when the tires are cold and then
perform the initia lization procedure
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
pressure of a tire drops, the tire pressure
warning light will come on.
■If the tire pressure warning system is not
initialized properly
●In the following situations, initialization
may take longer than usual to be com-
pleted or may not be possible. (Usually,
the vehicle will need to be driven for
approximately 10 to 30 minutes to com-
plete initialization.) If initialization is not
complete after drivin g approximately 30
minutes, continue driving for a while.
• If the vehicle is driven on an unpaved road, it may take longer to complete ini-
tialization.
• If the vehicle is backed up while perform- ing initialization, data collected during ini-
tialization will be cleared and it will take
longer than normal to complete.
• If the vehicle is driven in heavy traffic or another situation where other vehicles
are driven close by, it may take time for
the system to recognize the tire pressure
warning valve and tran smitters of your
vehicle over those of other vehicles.
If initialization is not complete after driving
for approximately 1 hour, park the vehicle in a safe place for approximately 20 minutes
and then drive the vehicle again.
●In the following situations, initialization
will not be started or was not completed
properly and the system will not operate
properly. Perform the initialization proce-
dure again.
• If, when attempting to start initialization,
the tire pressure warning light does not
blink 3 times.
• If, when the vehicle has been driven for
about 20 minutes after performing ini-
tialization, the tire pressure warning light
blinks for approximately 1 minute and
then illuminates.
●If initialization canno t be completed after
performing the above procedure, con-
tact your Lexus dealer.
Every tire pressure warning valve and
transmitter has a unique ID code.
When replacing a tire pressure warn-
ing valve and transmitter, it is necessary
to register the ID codes.
The ID codes can be registered on
of the multi-information display.
1
Park the vehicle in a safe place, turn
the engine switch off, wait 20 min-
utes or more, and then start the
engine.
WARNING
■When initializing the tire pressure
warning system
Do not initialize the tire pressure warning
system without first adjusting the tire
inflation pressure to the specified level.
Otherwise, the tire pressure warning
light may not come on even if the tire
inflation pressure is low, or it may come
on when the tire inflation pressure is
actually normal.
Registering ID codes

3946-3. Do-it-yourself maintenance
2Press or of the meter con-
trol switch to select .
3 Press or to select “Vehicle
Settings” and then press .
4 Press or to select “TPWS”
and then press .
5 Press or to select “Change
Wheel Set”. Then press and hold
until the tire pressure warning
light blinks slowly 3 times.
Then a message will be displayed on the
multi-information display.
When registration is being performed, the
tire pressure warning light will blink for
approximately 1 minute then illuminate and
“---” will be displayed for the inflation pres-
sure of each tire on the multi-information
display.
6 Drive straight (with occasional left
and right turns) at approximately
25 mph (40 km/h) or more for
approximately 10 to 30 minutes.
Registration is complete when the tire
pressure warning light turns off and the
inflation pressure of each tire is displayed
on the multi-information display.
Registration may take longer than normal
to complete if the vehicle speed cannot be
maintained at approximately 25 mph (40
km/h) or more. If registration cannot be
completed after driving for 1 hour or more, perform the registration procedure again
from the beginning. (
P.394)
After registering the ID codes, make sure
to initialize the tire pressure warning sys-
tem. ( P.392)
■When registering ID codes
●Before performing ID code registration,
make sure that no wheels with tire pres-
sure warning valve and transmitters
installed are near the vehicle.
●Make sure to initializ e the tire pressure
warning system after registering the ID
codes. If the system is initialized before
registering the ID codes, the initialized
values will be invalid.
●As the tires will be warm when registra-
tion is completed, ma ke sure to allow the
tires to cool before performing initializa-
tion.
■Canceling ID code registration
●To cancel ID code regi stration after it has
been started, turn the engine switch off
before driving the vehicle.
If the vehicle is driven after ID code regis-
tration is started, to cancel registration,
perform the ID code registration start
procedure again and turn the engine
switch off before driving.
●If ID code registration has been canceled,
the tire pressure warning light will blink
for approximately 1 minute when the
engine switch is tu rned to IGNITION
ON mode and then illuminate. The tire
pressure warning system will be opera-
tional when the tire pressure warning
light turns off.
●If the warning light does not turn off even
after several minutes have elapsed, ID
code registration may not have been can-
celled correctly. To cancel registration,
perform the ID code registration start
procedure again and then turn the engine
switch off before driving.
■If ID codes are not registered properly
●In the following situations, ID code regis-
tration may take longer than usual to be
completed or may not be possible. (Usu-
ally, the vehicle will need to be driven for

4167-2. Steps to take in an emergency
wheels, drive train, axles, steering and
brakes must be in good condition.
To have your vehicle towed by another
vehicle, the towing eyelet must be
installed to your vehicle. Install the tow-
ing eyelet using the following proce-
dure.
1Take out the phillips-head screw-
driver and towing eyelet.
Phillips-head screwdriver
Towing eyelet
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 a phillips-head
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 to IGNITION ON mode.
7Shift the shift position to N and
release the parking brake.
■While towing
If the engine is not running, the power assist
for the brakes and steering will not function,
making steering and braking more difficult.
Emergency towing procedure
A
B

4227-2. Steps to take in an emergency
■Electric power steering system warning light (warning buzzer)
■Low fuel level warning light
■Driver’s and front passenger’s seat belt reminder light (warning buzzer)*
*: Driver’s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to al ert the driver that his or her seat belt is not
fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer sounds. If
the seat belt is still unfastened, the buzzer sounds intermittently for a certain period of time
after the vehicle reaches a certain speed.
Front passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer sounds to alert the front passenger that his
or her seat belt is not fastened. If the seat be lt is unfastened, the buzzer sounds intermittenly
for a certain period of time after the vehicle reaches a certain speed.
■Rear passengers’ seat belt reminder lights*1 (warning buzzer)*2
Warning lightDetails/Actions
(red)
or
(yellow)
Indicates a malfunction in the EPS (Electric Power Steering) system
Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
Indicates that remaining fuel is approximately 3.4 gal. (13 L, 2.8 Imp.
gal.) or less
 Refuel the vehicle.
Warning lightDetails/Actions
Warns the driver and/or front pass enger 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.
Warning lightDetails/Actions
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.

4267-2. Steps to take in an emergency
■Brake hold operated indicator (warning buzzer)
■Master warning light (warning buzzer)
■Warning buzzer
In some cases, the bu zzer may not be heard
due to being in a noisy location or audio
sound.
■Front passenger detection sensor, seat
belt reminder and warning buzzer
●If luggage is placed on the front passen-
ger seat, the front passenger detection
sensor may cause th e warning light to
flash and the warning buzzer to sound
even if a passenger is not sitting in the
seat.
●If a cushion is placed on the seat, the sen-
sor may not detect a passenger, and the
warning light may not operate properly.
■SRS warning light
This warning light system monitors the air-
bag sensor assembly, Pop Up Hood com-
puter assembly, front impact sensors, side
impact sensors (front door), side impact
sensors (front), side impact sensors (rear),
driver’s seat position sensor, driver’s seat
belt buckle switch, front passenger occu-
pant classification system (ECU and sen-
sors), rear seat belt buckle switches (if
equipped), “AIR BAG ON” indicator light,
“AIR BAG OFF” indicator light, front pas-
senger’s seat belt buc kle switch, seat belt
pretensioners, airbags, interconnecting wir-
ing and power sources. ( P.29)
■If the malfunction indicator lamp comes
on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving
trips.
If the light does not go off even after several
trips, contact your Lexus dealer as soon as
possible.
■Electric power steering system warning
light (warning buzzer)
When the battery charge becomes insuffi-
cient or the voltage temporarily drops, the
electric power steering system warning
light may come on and the warning buzzer
may sound.
■When the tire pressure warning light
comes on
Inspect the tires to check if a tire is punc-
tured.
If a tire is punctured:  P.433
If none of the tires are punctured:
Turn the engine switch off then turn it to
IGNITION ON mode. Check if the tire
pressure warning light comes on or blinks.
If the tire pressure warning light blinks for
approximately 1 minute then stays on
There may be a malfunction in the tire
Warning lightDetails/Actions
(flashes)
Indicates a malfunction in the brake hold system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
A buzzer sounds and the warning light comes on and flashes to indicate
that the master warning system has detected a malfunction.
P.429

4387-2. Steps to take in an emergency
■Key linked functions
1
Closes the windows and the moon
roof
* or panoramic moon roof* (turn
and hold)
2
Opens the windows and the moon
roof
* or panoramic moon roof* (turn
and hold)
These settings must be customized at your
Lexus dealer.
*: If equipped
1Depress the brake pedal.
2
Touch the Lexus emblem side of the
electronic key to the engine switch.
When the electronic key is detected, a
buzzer sounds and the engine switch will
turn to IGNITION ON mode.
When the smart access system with
push-button start is deactivated in custom-
ization setting, the engine switch will turn
to ACCESSORY mode.
3Firmly depress the brake pedal and
check that is shown on the
multi-information display.
4
Press the engine switch.
In the event that the engine still cannot
be started, contact your Lexus dealer.
■Stopping the engine
Set the parking brake, shift the shift position
to P and press the engine switch as you nor-
mally do when stop ping the engine.
■Electronic key battery
As the above procedure is a temporary
measure, it is recommended that the elec-
tronic key battery be replaced immediately
when the battery is depleted. (P.403)
■Changing engine switch modes
Release the brake pe dal and press the
engine switch in step 3
above. The engine
does not start and modes will be changed
each time the switch is pressed. ( P.168)
WARNING
■When using the mechanical key and
operating the power windows or the
moon roof or panoramic moon roof
Operate the power window or the moon
roof or panoramic moon roof after
checking to make sure that there is no
possibility of any passenger having any of
their body parts caught in the window or
the moon roof or panoramic moon roof.
Also, do not allow ch ildren to operate the
mechanical key. It is possible for children
and other passengers to get caught in
the power window or the moon roof or
panoramic moon roof.
Starting the engine