check engine LEXUS LS500 2020 User Guide

882-1. Instrument cluster
Displays the following items:
• Speedometer
• Shift position/shift range/gear position (P.169)
Tachometer/Eco Driving Indicator display area ( P.90)
HUD (Head-up display) switch
■Head-up display will operate when
The engine switch is in IGNITION ON
mode.
■When using the head-up display
The head-up display may seem dark or hard
to see when viewed through sunglasses,
especially polarized su nglasses. Adjust the
brightness of the head-up display or
remove your sunglasses.
■Street name display
Only street names whic h are included in the
map data will be displayed.
■Outside temperature display
●When the ambient temperature is
approximately 37°F (3°C) or lower, the
low outside temperature indicator will
flash for approximately 10 seconds and
the outside temperature display will turn
off. In this case, the display will be dis-
played again when the outside tempera-
ture becomes approximately 41°F (5°C)
or higher.
●In the following situations, the correct
outside temperature may not be dis-
played, or the display may take longer
than normal to change:
• When stopped, or driving at low speeds (less than 12 mph [20 km/h])
• When the outside temperature has
changed suddenly (at the entrance/exit of
a garage, tunnel, etc.)
●When “--” or “E” is displayed, the system
may be malfunctioning. Take your vehicle
to your Lexus dealer.
F
G
WARNING
■When using the head-up display
●Check that the position and brightness
of the head-up display image does not
interfere with safe driving. Incorrect
adjustment of the image’s position or
brightness may obstruct the driver’s
view and lead to an accident, resulting
in death or serious injury.
●Do not continuously look at the
head-up display while driving as you
may fail to see pedestrians, objects on
the road, etc. ahead of the vehicle.
NOTICE
■Head-up display projector
●Do not place any drinks near the
head-up display projector. If the pro-
jector gets wet, electrical malfunctions
may result.
●Do not place anything on or put stick-
ers onto the head-up display projector.
Doing so could interrupt head-up dis-
play indications.
●Do not touch the inside of the head-up
display projector or thrust sharp edges
or the like into the projector.
Doing so could cause mechanical mal-
functions.

1003-2. Opening, closing and locking the doors and trunk
3-2.Opening, closing and locking the doors and trunk
■Smart access system with
push-button start
Carry the electronic key to enable this
function.
1 Grip the driver’s door handle to
unlock the door. Holding the
driver’s door ha ndle for approxi-
mately 2 seconds unlocks all the
doors. Grip any passenger door
handle to unlock all the doors.
*
Make sure to touch the sensor on the back
of the handle.
The doors cannot be unlocked for 3 sec-
onds after the doors are locked.
*: The door unlock settings can be changed.
2 Touch the lock sensor (indentation
on the upper part of the door han-
dle) to lock all the doors.
Check that the door is securely locked.
■Wireless remote control
1 Locks all the doors
Check that the door is securely locked.
2Unlocks all the doors
Pressing the button unlocks the driver’s
door. Pressing the button again within 5
seconds unlocks the other door.
Press and hold to open the windows
*1 and
moon roof
*1,2 or panoramic moon roof*1,2.
*1: This setting must be customized at your
Lexus dealer.
*2: If equipped
■Switching the door unlock function
It is possible to set which doors the entry
function unlocks using the wireless remote
control.
1 Turn the engine switch off.
2 When the indicator light on the key sur-
face is not on, press and hold ,
or for approximately 5
seconds while pre ssing and holding
.
The setting changes each time an operation
is performed, as shown below. (When
changing the setting continuously, release
the buttons, wait for at least 5 seconds, and
repeat step 2 .)
Doors
Unlocking and locking the doors
from the outside

1093-2. Opening, closing and locking the doors and trunk
3
Before driving
cally close it to the fully closed position.
●The trunk easy closer will operate
regardless of the engine switch mode.
●If the trunk easy closer does not operate,
open the trunk to the half open position
or more and then close it.
■Function to prevent the trunk being
locked with the electronic key inside
●When all doors are locked, closing the
trunk lid with the electr onic key left inside
the trunk will sound an alarm.
In this case, the trunk lid can be opened
pressing the trunk release button on the
trunk lid.
●If the spare electronic key is put in the
trunk with all the doors locked, the key
confinement prevention function is acti-
vated so the trunk can be opened. In
order to prevent theft, take all electronic
keys with you when leaving the vehicle.
●If the electronic key is put in the trunk with
all the doors locked, the key may not be
detected depending on the location of
the key and the surrounding radio wave
conditions. In this case, the key confine-
ment prevention function cannot be acti-
vated, causing the doors to lock when the
trunk is closed. Make sure to check
where the key is before closing the trunk.
●The key confinement prevention function
cannot be activated if any one of the
doors is unlocked. In this case, open the
trunk using the trunk opener.
■Overload protection function (vehicles
with power trunk opener and closer)
The trunk lid will not operate when exces-
sive load is present on the top of the trunk
lid.
■Fall-down protection function (vehicles
with power trunk opener and closer)
While the trunk lid is opening automatically,
applying excessive force to it will stop the
opening operation to prevent the trunk lid
from rapidly falling down.
■Jam protection function (vehicles with
power trunk opener and closer)
While the trunk lid is closing automatically,
the trunk lid will stop closing and open if something gets caught.
■Internal trunk release lever
The trunk lid can be opened by pulling the
glow-in-the-dark lever located on the inside
of the trunk lid to the side.
The lever will continue to glow for some
time after the trunk lid is closed.
■Using the mechanical key
The trunk can be also opened using the
mechanical key. ( P.437)
If the trunk is unlocked using the mechani-
cal key, the power trunk lid and trunk easy
closer will not be operational. To return
them to an operational state, fully close the
trunk lid by hand.
■If the smart access system with
push-button start or the wireless remote
control does not operate properly
Use the mechanical key to unlock the trunk.
(  P.437)
Replace the key battery with a new one if it
is depleted.
■Hands Free Power Trunk Lid operating
conditions (if equipped)
●When the Hands Free Power Trunk Lid
(kick sensor) operatio n setting is turned
on and the engine switch is turned off
●When an electronic key is carried within
the operation range
■Situations in which the Hands Free
Power Trunk Lid may not operate prop-
erly (if equipped)
In the following situations, the Hands Free
Power Trunk Lid may not operate properly:
●When a foot remain s under the rear
bumper
●If the rear bumper is strongly hit with a
foot or is touched for a while

1143-2. Opening, closing and locking the doors and trunk
engine is started or engine switch modes
are changed.
●Do not leave the electronic key on top of
the instrument panel or near the door
pockets when exiting the vehicle.
Depending on the radio wave reception
conditions, it may be detected by the
antenna outside the cabin and the doors
will become lockable from the outside,
possibly trapping the electronic key
inside the vehicle.
●As long as the electron ic key is within the
effective range, the doors may be locked
or unlocked by anyone. However, only
the doors detecting the electronic key
can be used to unlock the vehicle.
●Even if the electronic key is not inside the
vehicle, it may be possible to start the
engine if the electronic key is near the
window.
●The doors may unlock or lock if a large
amount of water spla shes on the door
handle, such as in the rain or in a car
wash, when the electronic key is within
the effective range. (The doors will auto-
matically be locked after approximately
60 seconds if the d oors are not opened
and closed.)
●If the wireless remote control is used to
lock the doors when the electronic key is
near the vehicle, there is a possibility that
the door may not be unlocked by the
entry function. (Use the wireless remote
control to unlock the doors.)
●Touching the door lock sensor while
wearing gloves may delay or prevent lock
operation.
●When the lock operation is performed
using the lock sensor, recognition signals
will be shown up to two consecutive
times. After this, no recognition signals
will be given.
●If the door handle becomes wet while the
electronic key is within the effective
range, the door may lock and unlock
repeatedly. In this case, follow the follow-
ing correction procedures to wash the
vehicle:
• Place the electronic key in a location 6 ft. (2 m) or more away from the vehicle.
(Take care to ensure that the key is not stolen.)
• Set the electronic key to battery-saving mode to disable the smart access system
with push-button start. ( P.113)
●If the electronic key is inside the vehicle
and a door handle becomes wet during a
car wash, a message may be shown on
the multi-information display and a
buzzer will sound outside the vehicle. To
turn off the alarm, lock all the doors.
●The lock sensor may not work properly if
it comes into contact with ice, snow, mud,
etc. Clean the lock sensor and attempt to
operate it again.
●A sudden approach to the effective
range or door handle may prevent the
doors from being unlocked. In this case,
return the door handle to the original
position and check that the doors unlock
before pulling the door handle again.
●If there is another electronic key in the
detection area, it may take slightly longer
to unlock the doors after the door handle
is gripped.
■When the vehicle is not driven for
extended periods
●To prevent theft of the vehicle, do not
leave the electronic key within 6 ft. (2 m)
of the vehicle.
●The smart access system with push-but-
ton start can be deactivated in advance.
●Setting the electronic key to battery-sav-
ing mode helps to reduce key battery
depletion. ( P.113)
■To operate the system properly
●Make sure to carry the electronic key
when operating the system. Do not get
the electronic key too close to the vehicle
when operating the system from the out-
side of the vehicle.
Depending on the position and holding
condition of the electr onic key, the key may
not be detected correctly and the system
may not operate properly. (The alarm may
go off accidentally, or the door lock pre-
vention function may not operate.)
●Do not leave the electr onic key inside the
trunk.

1313-3. Adjusting the seats
3
Before driving
On vehicles with adjustable seat cush-
ion side bolsters, when the driver’s
door is opened with the engine switch
off, the seat cushion side bolsters will
lower if they are in the default position.
When any of the following has been
performed, the seat and steering
wheel automatically return to their
original positions.
• The engine switch has been turned to ACCESSORY mode or IGNI-
TION ON mode.
• The driver’s seat belt has been fas- tened.
Front passenger’s seat
If all of the following have been per-
formed while the vehicle is stopped,
the lumbar support, pelvic support,
shoulder bolster (if equipped), seat-
back side bolster (if equipped), and hip
support (if equipped) will be moved to
their default position. On vehicles with
adjustable seat cushion side bolsters,
the seat cushion side bolsters will
lower.
• The passenger’s seat belt has been unfastened.
• The front passenger’s door is opened.
■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 syst em operation, the
automatic operation will 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 bolster adjustment (if
equipped)
If the seat cushion side 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.470)
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”
Recording a driving position into
memory

1323-3. Adjusting the seats
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.121), 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. 3
Press one of the buttons for the
driving position you want to recall
until the buzzer sounds.
When the driver’s seat adjustment
switches are in front passenger mode
(
 P.121), a driving position cannot be
recalled.
■To stop the position recall operation
part-way through
Perform any of the following operations:
●Press the “SET” button.
●Press button “1”, “2” or “3”.
●Press the mode change button.
●Operate any of the seat adjustment
switches (only cancels seat position
recall).
●Operate the tilt and telescopic steering
control switch (onl y cancels steering
wheel position recall).
■Recalling a driving position
If a driving position is recalled, the move-
ment of the front seat may be stopped part-
way if the seat moves close to the rear seat.
If a rear passenger is determined to be in
the vehicle, the rearward movement of the
front seat may be stopped partway to
ensure sufficient space for the rear passen-
ger.
■Recalling the front passenger’s seat
position (vehicles with a rear seat with
an ottoman)
If the ottoman of the rear seat is extended,
the front passenger’s se at position cannot
be recalled.
WARNING
■Seat adjustment 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

1333-3. Adjusting the seats
3
Before driving
■Operating the driving position memory
after turning the engine switch off
Driver’s seat:
Recorded seat positions can be activated
up to 180 seconds after the driver’s door is
opened and another 60 seconds after it is
closed again.
Front passenger’s seat:
Recorded seat positions can be recalled up
to 180 seconds after the front passenger’s
door is opened.
■Registering procedure
Record your driving position to button
“1”, “2” or “3” before performing the
following:
Carry only the key you want to register,
and then close the driver’s door.
If 2 or more keys are in the vehicle, the
driving position cannot be recorded
properly.
1 Turn the engine switch to IGNI-
TION ON mode.
2 Check that the shift position is in P.
3 Recall the driving position that you
want to record.
4 While pressing the recalled button,
press and hold the door lock switch
(either lock or unlock) until the
buzzer sounds.
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-
Registering/canceling/recall a
driving position to an electronic
key (including a card key) (mem-
ory recall function)

1443-5. Opening, closing the windows and moon roof
5Release the power window switch for a
moment, resume pushing the switch in
the one-touch opening direction, and
hold it there for approximately 4 sec-
onds or more.
6
Pull and hold the power window switch
in the one-touch closing direction
again. After the side window is com-
pletely closed, continue holding the
switch for a further 1 second or more.
If you release the switch while the window is
moving, start again from the beginning.
If the window reverses and cannot be fully
closed or opened, have the vehicle
inspected by your Lexus dealer.
■Door lock linked window operation
●The power windows can be opened and
closed using the mechanical key.*
(  P.438)
●The power windows can be opened using
the wireless remote control.* ( P.100)
*: These settings must be customized at
your Lexus dealer.
■Power windows open warning buzzer
A buzzer sounds and a message is shown
on the multi-information display in the
instrument cluster when the engine switch
is turned off and the driver’s door is opened
with the power windows open.
■Customization
Some functions can be customized.
(  P.470)
WARNING
Observe the following precautions.
Failure to do so may result in death or
serious injury.
■Closing the windows
●The driver is responsible for all the
power window operations, including
the operation for the passengers. In
order to prevent accidental operation,
especially by a child, do not let a child
operate the power windows. It is possi-
ble for children and other passengers
to have body parts caught in the power
window. Also, when riding with a child,
it is recommended to use the window
lock switch. (
P.145)
●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 a window is being operated.
●When using the wireless remote con-
trol or mechanical key and operating
the power windows, operate the
power window after checking to make
sure that there is no possibility of any
passenger having any of their body
parts caught in the window. Also do
not let a child operate window by the
wireless remote control or mechanical
key. It is possible for children and other
passengers to get caught in the power
window.
●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 activa te the jam protec-
tion function.

1463-5. 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.438)
●The moon roof can be opened using the
wireless remote control.* ( P.100)*: 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

1473-5. Opening, closing the windows and moon roof
3
Before driving
after performing the above procedure cor-
rectly, have the vehicle inspected by your
Lexus dealer.
■If the moon roof does not move normally
If the moon roof 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
Press and hold the “DOWN” switch.*
The moon roof will stop at the tilt-up posi-
tion. After that, it will op en, close, tilt up, tilt
down, and stop at the fully closed position.
3
Confirm that the moon roof has com-
pletely stopped and release the switch.
*: If you release the switch while the moon
roof is moving, perform the procedure
again from the beginning.
If, after performing the above procedures
correctly, the moon roof still does not open
or close normally or the automatic opening
function does not operate, have the vehicle
inspected by your Lexus dealer.
■Moon roof open warning buzzer
A buzzer sounds and a message is shown
on the multi-information display in the
instrument cluster when the engine switch
is turned off and the driver’s door is opened
with the moon roof open.
■Customization
Some functions can be customized.
(  P.470)
WARNING
Observe the following precautions.
Failure to do so may cause death or seri-
ous injury.
■Opening the moon roof
●Do not allow any passengers to put
their hands or heads outside the vehi-
cle while it is moving.
●Do not sit on top of the moon roof.
■Opening and closing the moon roof
●The driver is responsible for moon roof
opening and closing operations.
In order to prevent accidental opera-
tion, especially by a child, do not let a
child operate the moon roof. It is possi-
ble for children and other passengers
to have body parts caught in the 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 moon roof is being operated.
●When using the wireless remote con-
trol or mechanical key and operating
the moon roof, operate the moon roof
after checking to make sure that there
is no possibility of any passenger hav-
ing any of their body parts caught in
the moon roof. Also, do not let a child
operate moon roof by the wireless
remote control or mech anical key. It is
possible for children and other passen-
gers to get caught in the 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.