check engine light LEXUS LS500 2021 User Guide

1343-3. Adjusting the seats
■Operation of the power easy access sys-
tem
●When exiting the vehicle, the power easy
access system may not operate if the seat
is already in the rearmost or uppermost
position or close to the rear seat.
●If the seat position is adjusted during
power easy access sy stem operation, the
automatic operation w ill stop. (The seat
will change to manual operation.)
●If the seat position is adjusted during or
after the power easy access system oper-
ation when the driver is exiting the vehi-
cle, the power easy access system will not
operate when entering the vehicle.
■Seat cushion side bo lster adjustment (if
equipped)
If the seat cushion si de bolsters have been
lowered, when the front door is closed, the
seat cushion side bolsters will move to their
default position.
If the seat is adjusted while the seat cushion
side bolsters are moving to the default posi-
tion, their movement will be temporarily
suspended. (The seat cushion side bolsters
will move to the default position after a cer-
tain amount of time.)
■Customization
Some functions can be customized.
(  P.476)
1 Turn the engine switch to IGNI-
TION ON mode.
2 Check that the shift position is in P.
3 Adjust the driver’s seat, steering
wheel, outside rear view mirrors
and head-up display (if equipped)
to the desired positions.
4 While pressing the “SET” button, or
within 3 seconds after the “SET” button is pressed, press button “1”,
“2” or “3” until the buzzer sounds.
If the selected button has already been
preset, the previously recorded position
will be overwritten.
When the driver’s seat adjustment
switches are in front passenger mode
(
 P.123), the position of the driver’s seat
cannot be registered.
To record the position of the front pas-
senger’s seat, adjust the front passen-
ger’s seat to the desired position and
perform step 4 using the buttons on
the front passenger’s side.
■In order to correctly use the driving
position memory function
If a seat position is already in the furthest
possible position and the seat is operated in
the same direction, the recorded position
may be slightly differen t when it is recalled.
1Turn the engine switch to IGNI-
TION ON mode.
2 Check that the shift position is in P.
Recording a driving position into
memory
WARNING
■Seat adjustme nt caution
Take care during seat adjustment so that
the seat does not strike the rear passen-
ger or squeeze your body against the
steering wheel.
Recalling a driving position

1363-3. Adjusting the seats
If the button could not be registered, the
buzzer sounds continuously for approxi-
mately 3 seconds.
■Cancelation procedure
Carry only the key you want to cancel
and then close the driver’s door.
If 2 or more keys are in the vehicle, the
driving position cannot be canceled
properly.
1 Turn the engine switch to IGNI-
TION ON mode.
2 Check that the shift position is in P.
3 While pressing the “SET” button,
press and hold the door lock switch
(either lock or unlock) until the
buzzer sounds twice.
If the button could not be canceled, the
buzzer sounds continuously for approxi-
mately 3 seconds.
■Recall procedure
1 Make sure that the doors are
locked before recalling the driving
position. Carry the electronic key
that has been registered to the driv-
ing position, and then unlock and
open the driver’s door using the
smart access system with push-but-
ton start or wireless remote control.
The driving position will move to the
recorded position (not including the steer-
ing wheel and head-up display [if
equipped]). However, the seat will move to a position slightly behind the recorded
position in order to make entering the vehi-
cle easier.
If the driving position is in a position that
has already been recorded, the seat and
outside rear view mirrors will not move.
2
Turn the engine switch to ACCES-
SORY mode or IGNITION ON
mode, or fasten a seat belt.
The seat, steering wheel and head-up dis-
play (if equipped) will move to the
recorded position.
■Recalling the driving position using the
memory recall function
●Different driving positions can be regis-
tered for each electronic key. Therefore,
the driving position that is recalled may
be different depending on the key being
carried.
●If a door other than the driver’s door is
unlocked with the smart access system
with push-button start, the driving posi-
tion cannot be recalled. In this case, press
the driving position button which has
been set.
■Customization
Some functions can be customized.
(  P.476)

1563-5. Opening, closing the windows and moon roof
*:If equipped
■Opening and closing
1 Opens the moon roof
*
The moon roof tilts up and then fully opens.
2Closes the moon roof*
*: Lightly press either side of the moon roof
switch to stop the moon roof partway.
■Tilting up and down
1 Tilts the moon roof up
*
2Tilts the moon roof down*
*: Lightly press either side of the moon roof
switch to stop the moon roof partway.
■The moon roof can be operated when
The engine switch is in IGNITION ON
mode.
■Operating the moon roof after turning
the engine off
The moon roof can be operated for approx-
imately 45 seconds after the engine switch
is turned to ACCESSORY mode or turned
off. It cannot, howeve r, be operated once
either front door is opened.
■Jam protection function
If an object is dete cted between the moon
roof and the frame while the moon roof is
closing or tilting down, travel is stopped and
the moon roof opens slightly.
■Sunshade
The sunshade can be opened and closed
manually. However, the sunshade will open
automatically when the moon roof is
opened.
■Door lock linked moon roof operation
●The moon roof can be opened and
closed using the mechanical key.*
(  P.443)
●The moon roof can be opened using the
wireless remote control.* ( P.102)*: These settings must be customized at
your Lexus dealer.
■When the moon roof does not close nor-
mally
Perform the following procedure:
1 Stop the vehicle.
2 Press and hold th e “CLOSE” switch.
*
The moon roof will close, reopen and pause
for approximately 10 seconds. Then it will
close again and stop at the completely
closed position.
3Check to make sure that the moon roof
is completely closed and then release
the switch.
*: If the switch is released at the incorrect
time, the procedure will have to be per-
formed again from the beginning.
If the moon roof does not fully close even
Moon roof*
Use the overhead switches to open
and close the moon roof and tilt it
up and down.
Operating the moon roof

1603-5. Opening, closing the windows and moon roof
■The panoramic moon roof can be oper-
ated when
The engine switch is in IGNITION ON
mode.
■Operating the panoramic moon roof
after turning the engine off
The panoramic moon roof and electronic
roof sunshade can be operated for approxi-
mately 45 seconds afte r the engine switch
is turned to ACCESSORY mode or turned
off. It cannot, however, be operated once
the driver’s door is opened.
■Jam protection function
If an object is detected between the pan-
oramic moon roof and the frame in the fol-
lowing situations, travel is stopped and the
panoramic moon roof opens slightly:
●The panoramic moon roof is closing or
tilting down.
●The electronic roof sunshade is closing.
■Door lock linked panoramic moon roof
operation
●The panoramic moon roof can be
opened and closed using the mechanical
key.
* (  P.443)
●The panoramic moon roof can be
opened using the wireless remote con-
trol.
*( P.102)
*: These settings must be customized at
your Lexus dealer.
■When the panoramic moon roof or elec-
tronic front roof sunshade does not
close normally
Perform the following procedure:
1 Stop the vehicle.
2 Turn the engine switch to IGNITION
ON mode.
3 Press and hold the “CLOSE” switch or
the front roof sunshade close switch.
Continue pressing the switch for
approximately 10 seconds after the
panoramic moon roof or electronic
front roof sunshade closes and reopens.
The panoramic moon roof and elec-
tronic front roof sunshade will start to
close.
*
4Check that the panoramic moon roof
and electronic front roof sunshade are
fully closed and release the switch.
*: If the switch is released at the incorrect
time, the procedure will have to be per-
formed again from the beginning.
If the panoramic moon roof or electronic
front roof sunshade does not fully close
even after performing the above procedure
correctly, have the vehicle inspected by
your Lexus dealer.
■When the electronic rear roof sunshade
does not close normally
Perform the following procedure:
1 Stop the vehicle.
2 Turn the engine switch to IGNITION
ON mode.
3 Press and hold the rear roof sunshade
switch. Continue pressing the switch for
approximately 10 seconds after the
electronic rear roof sunshade closes
and reopens. The elec tronic rear roof
sunshade will start to close.
*
4 Check that the electronic rear roof sun-
shade are fully closed and release the
switch.
*: If the switch is released at the incorrect
time, the procedure will have to be per-
formed again from the beginning.
If the panoramic moon roof or electronic
front roof sunshade does not fully close
even after performing the above procedure
correctly, have the vehicle inspected by
your Lexus dealer.
■If the panoramic moon roof or elec-
tronic front roof sunshade does not
move normally
If the panoramic moon roof or electronic
front roof sunshade does not open or close
normally or the automatic opening function
does not operate, perform the following ini-
tialization procedure.
1 Stop the vehicle.
2 Turn the engine switch to IGNITION
ON mode.
3 Fully close the panoramic moon roof
and electronic front roof sunshade.

1623-5. Opening, closing the windows and moon roof
WARNING
●Do not sit on top of the panoramic
moon roof.
■Opening and closing the panoramic
moon roof
●The driver is responsible for pan-
oramic moon roof opening and closing
operations. In order to prevent acci-
dental operation, especially by a child,
do not let a child operate the pan-
oramic moon roof. It is possible for
children and other passengers to have
body parts caught in the panoramic
moon roof.
●Check to make sure that all passen-
gers do not have any part of their body
in a position where it could be caught
when the panoramic moon roof is
being operated.
●When using the wireless remote con-
trol or mechanical key and operating
the panoramic moon roof, operate the
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 panoramic
moon roof. Also, do not let a child
operate panoramic moon roof by the
wireless remote control or mechanical
key. It is possible for children and other
passengers to get caught in the pan-
oramic moon roof.
●When exiting the vehicle, turn the
engine switch off, carry the key and
exit the vehicle along with the child.
There may be accidental operation,
due to mischief, etc., that may possibly
lead to an accident.
■Jam protection function
●Never use any part of your body to
intentionally activate the jam protec-
tion function.
●The jam protection function may not
work if something gets caught just
before the panoramic moon roof or
electronic roof sunshade is fully
closed. Also, the jam protection func-
tion is not designed to operate while
the switch is being pressed. Take care
so that your fingers, etc. do not get
caught.
■To prevent burns or injuries
Do not touch the area between the
underside of the panoramic moon roof
and the electronic sunshade. Your hand
may get caught and you could injure
yourself. Also, if the vehicle is left in direct
sunlight for a long time, the underside of
the panoramic moon roof could become
very hot and could cause burns.
NOTICE
■To prevent damage to the panoramic
moon roof
●Before opening the panoramic moon
roof, make sure that there are no for-
eign objects, such as stones or ice,
around the opening.
●Do not hit the surface or edge of the
panoramic moon roof with hard
objects.
■After the vehicle has been washed or
rained on
Before opening the panoramic moon
roof, wipe any water off the panoramic
moon roof. Otherwise, water may enter
the cabin when the panoramic moon roof
is opened.

1664-1. Before driving
WARNING
●Do not drive the vehicle over or stop
the vehicle near flammable materials.
The exhaust system and exhaust gases
can be extremely hot. These hot parts
may cause a fire if there is any flamma-
ble material nearby.
●Vehicles without Lexus Safety System
+ A: During normal driving, do not turn
off the engine. Turning the engine off
while driving will not cause loss of
steering or braking control, but the
power assist to these systems will be
lost. This will make it more difficult to
steer and brake, so you should pull
over and stop the vehicle as soon as it
is safe to do so.
However, in the event of an emer-
gency, such as if it becomes impossible
to stop the vehicle in the normal way:
P.418
●Vehicles with Lexus Safety System + A:
During normal driving, do not turn off
the engine. Turning the engine off
while driving will not cause loss of
steering or braking control, however,
power assist to the steering will be lost.
This will make it more difficult to steer
smoothly, so you should pull over and
stop the vehicle as soon as it is safe to
do so.
In the event of an emergency, such as if
it becomes impossible to stop the vehi-
cle in the normal way:
P.418
●Use engine braking (downshift) to
maintain a safe speed when driving
down a steep hill.
Using the brakes continuously may
cause the brakes to overheat and lose
effectiveness. (
P.178)
●Do not adjust the positions of the
steering wheel, the seat, or the inside
or outside rear view mirrors while driv-
ing.
Doing so may result in a loss of vehicle
control.
●Always check that all passengers’
arms, heads or other parts of their
body are not outside the vehicle.
●Do not drive in excess of the speed
limit. Even if the legal speed limit per-
mits it, do not drive over 85 mph (140
km/h) unless your vehicle has
high-speed capability tires. Driving
over 85 mph (140 km /h) may result in
tire failure, loss of control and possible
injury. Be sure to consult a tire dealer
to determine whether the tires on your
vehicle are high-speed capability tires
or not before driving at such speeds.
■When driving on slippery road sur-
faces
●Sudden braking, acceleration and
steering may cause tire slippage and
reduce your ability to control the vehi-
cle.
●Sudden acceleration, engine braking
due to shifting, or changes in engine
speed could cause the vehicle to skid.
●After driving through a puddle, lightly
depress the brake pedal to make sure
that the brakes are functioning prop-
erly. Wet brake pads may prevent the
brakes from functioning properly. If the
brakes on only one side are wet and
not functioning properly, steering con-
trol may be affected.
■When shifting the shift position
●Do not let the vehicle roll backward
while a forward driving position is
selected, or roll forw ard while the shift
position is in R.
Doing so may cause the engine to stall
or lead to poor brake and steering
performance, resulting in an accident
or damage to the vehicle.
●Do not shift the shift position to P while
the vehicle is moving.
Doing so can damage the transmission
and may result in a loss of vehicle con-
trol.

1674-1. Before driving
4
Driving
WARNING
●Do not shift the shift position to R while
the vehicle is moving forward.
Doing so can damage the transmission
and may result in a loss of vehicle con-
trol.
●Do not shift the shift position to a driv-
ing position while the vehicle is moving
backward.
Doing so can damage the transmission
and may result in a loss of vehicle con-
trol.
●Changing the shift position to N while
the vehicle is moving will disengage
the engine from the transmission.
Engine braking is not available when N
is selected.
●Be careful not to change the shift posi-
tion with the accelerator pedal
depressed. Changing the shift posi-
tion to any positions other than P or N
may lead to unexpected rapid acceler-
ation of the vehicle that may cause an
accident and result in death or serious
injury.
After changing the shift position, make
sure to confirm the current shift posi-
tion displayed on the shift position indi-
cator inside the meter.
■Brake pad wear
If any of the following situations occurs,
have the brake pads visually checked and
replaced by your Lexus dealer as soon as
possible.
●If the brake pad wear limit of a brake
pad is found to have been exceeded
when visually checking the brake pads
for each wheel (for the brake pad wear
limit, refer to P.461)
●If a warning message is displayed on
the multi-information display (only the
right-side pads can be detected)
Rotor damage may result if the pads are
not replaced when needed.
It is dangerous to drive the vehicle when
the wear limits of the brake pads and/or
those of the brake discs are exceeded.
■When the vehicle is stopped
●Do not race the engine.
If the vehicle is in any gear other than P
or N, the vehicle may accelerate sud-
denly and unexpectedly, causing an
accident.
●In order to prevent accidents due to
the vehicle rolling away, always keep
depressing the brake pedal while the
engine is running, and apply the park-
ing brake as necessary.
●If the vehicle is stopped on an incline,
in order to prevent accidents caused
by the vehicle rolling forward or back-
ward, always depress the brake pedal
and securely apply the parking brake
as needed.
●Avoid revving or racing the engine.
Running the engine at high speed
while the vehicle is stopped may cause
the exhaust system to overheat, which
could result in a fire if combustible
material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette lighters,
spray cans, or soft drink cans in the
vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire.
• The temperature inside the vehicle may cause the plastic lenses and plas-
tic material of glasses to deform or
crack.
• Soft drink cans may fracture, causing the contents to spray over the interior
of the vehicle, and may also cause a
short circuit in the vehicle’s electrical
components.

1754-2. Driving procedures
4
Driving
while turning the steering wheel left and
right.
●To prevent the steering lock motor from
overheating, operation of the motor may
be suspended if the engine is turned on
and off repeatedly in a short period of
time. In this case, refrain from operating
the engine switch. After about 10 sec-
onds, the steering lock motor will resume
functioning.
■When “Check Fuel Cap” is displayed on
the multi-inform ation display
 P.201
■Electronic key battery
 P.410
■Operation of the engine switch
●If the switch is not pressed shortly and
firmly, the engine switch mode may not
change or the engine may not start.
●If attempting to restart the engine imme-
diately after turning the engine switch off,
the engine may not start in some cases.
After turning the engine switch off, please
wait a few seconds before restarting the
engine.
■Customization
If the smart access sy stem with push-button
start has been deactivated in a customized
setting, refer to P.442.
1 Stop the vehicle completely.
2 If the parking brake is in manual
mode, set the parking brake.
(P.186)
3 Shift the shift position to P.
(P.180)
Check that the shift position indicator
shows P and the parking brake indicator is
illuminated.
4 Press the engine switch.
The engine will stop, and the meter display
will be extinguished (the shift position indi-
cator will be extinguished a few seconds
after the meter display).
5Release the brake pedal and check
that “ACCESSORY” or “IGNI-
WARNING
■When starting the engine
Always start the engine while sitting in
the driver’s seat. Do not depress the
accelerator pedal while starting the
engine under any circumstances.
Doing so may cause an accident result-
ing in death or serious injury.
■Caution while driving
If engine failure occurs while the vehicle
is moving, do not lock or open the doors
until the vehicle reaches a safe and com-
plete stop. Activation of the steering lock
in this circumstance may lead to an acci-
dent, resulting in death or serious injury.
NOTICE
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start
or stalls frequently, have your vehicle
checked by your Lexus dealer immedi-
ately.
■Symptoms indicating a malfunction
with the engine switch
If the engine switch seems to be operat-
ing somewhat differently than usual, such
as the switch sticking slightly, there may
be a malfunction. Contact your Lexus
dealer immediately.
Stopping the engine

1854-2. Driving procedures
4
Driving
1Right turn
2 Lane change to the right (move the
lever partway and release it)
The right hand signals will flash 3 times.
3Lane change to the left (move the
lever partway and release it)
The left hand signals will flash 3 times.
4Left turn
■Turn signals can be operated when
The engine switch is in IGNITION ON
mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear
turn signal lights has not burned out.
■If the turn signals stop flashing before a
lane change has been performed
Operate the lever again.
■Customization
Some functions can be customized.
(  P.476)Turn signal lever
Operating instructions

1974-3. Operating the lights and wipers
4
Driving
8 Windshield washer/wiper
dual operation
Pulling the lever operates the windshield
wipers and washer.
(After operating severa l times, the wipers
operate once more time after a short delay
to prevent dripping. However, the dripping
prevention does not operate while the
vehicle is moving.)
Vehicles with headlight cleaners:
When the engine switch is in IGNITION
ON mode and the headlights are on, if the
lever is pulled, the headlight cleaners will
operate once. After this, the headlight
cleaners will operate every 5th time the
lever is pulled.
9* Rear camera washer opera-
tion
Pushing the lever operates the rear cam-
era washer and cleans the rear camera and
the camera for the Digital Rearview Mirror.
*: Vehicles with Digital Rearview Mirror
■The windshield wiper and washer can be
operated when
The engine switch is in IGNITION ON
mode.
■Effects of vehicle speed on wiper opera-
tion
Even when the wipers are not in AUTO
mode, vehicle speed affects the time until
the drip prevention wiper sweep occurs.
With low speed windshield wiper operation
selected, wiper operat ion will be switched
from low speed to intermittent wiper opera-
tion only when the vehicle is stationary.
(However, when the sensor sensitivity is
adjusted to the highest level, the mode can-
not be switched.)
■Raindrop sensor
●The raindrop sensor judges the amount
of raindrops.
An optical sensor is adopted. It may not
operate properly when sunlight from the rising or setting of
the sun intermittently
strikes the windshield, or if bugs etc. are
present on the windshield.
●If the wiper is turned to AUTO mode
while the engine swit ch is in IGNITION
ON mode, the wipers will operate once
to show that AUTO mode is activated.
●If the temperature of the raindrop sensor
is 185°F (85°C) or higher, or 5°F
(-15°C) or lower, automatic operation
may not occur. In this case, operate the
wipers in any mode other than AUTO
mode.
■If no washer fluid sprays
Check that the washer nozzles are not
blocked if there is wash er fluid in the washer
fluid reservoir.
■Front door opening linked windshield
wiper stop function
When is selected and the windshield
wipers are operating, if a front door is
opened while the vehicle is stopped and the
P shift position is sele cted, operation of the
windshield wipers will be stopped to pre-
vent anyone near th e vehicle from being
sprayed by water from the wipers. When
the front door is closed, wiper operation will
resume.
■When stopping the engine in an emer-
gency while driving
If the windshield wipe rs are operating when