2020 LEXUS LS500H check engine light

4TABLE OF CONTENTS
5-6. Using the other interior featuresOther interior features .............. 346
Garage door opener.................. 354
6-1. Maintenance and care Cleaning and protecting the vehi-cle exterior ................................... 362
Cleaning and protecting the vehi- cle interior .................................... 365
6-2. Maintenance Maintenance requirements ..... 368
General maintenance ................ 369
Emission inspection and mainte- nance (I/M) programs ............ 372
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................... 373
Hood.................................................. 375
Positioning a floor jack............... 375
Engine compartment.................. 377
Battery .............................................. 385
Tires ................................................... 387
Replacing the tire ......................... 395
Tire inflation pressure ................. 399
Wheels.............................................. 400
Air conditioning filter..................402
Electronic key battery ................ 403
Checking and replacing fuses ........................................................... 405
Light bulbs ....................................... 4087-1. Essential information
Emergency flashers ..................... 410
If your vehicle has to be stopped in an emergency ............................. 410
If the vehicle is trapped in rising water ................................................. 411
7-2. Steps to take in an emergency If your vehicle needs to be towed............................................................ 413
If you think something is wrong ............................................................ 417
Fuel pump shut off system ......... 418
If a warning light turns on or a warn- ing buzzer sounds...................... 419
If a warning messa ge is displayed
.......................................................... 429
If you have a flat tire .................... 433
If the engine will not start .......... 434
If you lose your keys.................... 436
If the fuel filler door cannot be opened .......................................... 436
If the electronic key does not oper- ate properly ................................. 437
If the vehicle battery is discharged .......................................................... 439
If your vehicle overheats ........... 444
If the vehicle becomes stuck ... 447
8-1. Specifications Maintenance data (fuel, oil level, etc.) ................................................. 450
Fuel information............................ 459
6Maintenance and care
7When trouble arises
8Vehicle specifications

13Pictorial index
Precautions for winter season .....................................................................................P.303
To prevent freezing (windshield wiper de-icer)
*................................................. P.322
Precautions for car wash ............................................................................................... P.363
Fuel filler door ..........................................................................................................P.190
Refueling method .............................................................................................................. P .190
Fuel type/fuel tank capacity ...... .................................................................................... P.451
Tires.......................................................................................................................... ..P.387
Tire size/inflation pressure ............................ ................................................... P.387, 456
Winter tires/tire chains ..................................................................................................P.303
Checking/rotation/tire pressure warning system.............................................. P.387
Coping with flat tires........................................................................................................ P .433
Hood .......................................................................................................................... P.375
Opening ........................................................................................................................ ....... P.375
Engine compartment cover ......................................................................................... P.378
Engine oil ..................................................................................................................... ......... P.452
Coping with overheating ............................................................................................... P.444
Warning messages .......................................................................................................... P.429
Headlights/cornering lights ............................................................................... P.180
Parking lights/daytime running lights.............................................................. P.180
Turn signal lights ...................................................................................................... P.175
Tail lights ................................................................................................................... P .180
Stop lights
Hill-start assist control ....................................................................................................P. 298
License plate lights ................................................................................................ P.180
Back-up lights
Changing the shift position to R................................................................................... P.169
Side marker lights .................................................................................................. P.180
*:If equipped
Light bulbs of the exterior lights for driving
(Replacing method: P.408)
E
F
G
H
I
J
K
L
M
N

441-1. For safe use
Exhaust gas precautions
Harmful substance to the human
body is included in exhaust gases if
inhaled.
WARNING
Exhaust gases include harmful carbon
monoxide (CO), which is colorless and
odorless. Observe the following precau-
tions.
Failure to do so may cause exhaust gases
enter the vehicle and may lead to an
accident caused by light-headedness, or
may lead to death or a serious health
hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehi-
cle even when the trunk lid is closed,
open the windows and have the vehi-
cle inspected at your Lexus dealer as
soon as possible.
■When parking
●If the vehicle is in a poorly ventilated
area or a closed area, such as a
garage, stop the engine.
●Do not leave the vehicle with the
engine on for a long time.
If such a situation cannot be avoided,
park the vehicle in an open space and
ensure that exhaust fumes do not enter
the vehicle interior.
●Do not leave the engine running in an
area with snow build-up, or where it is
snowing. If snowbanks build up around
the vehicle while the engine is running,
exhaust gases may collect and enter
the vehicle.
■Exhaust pipe
The exhaust system needs to be checked
periodically. If there is a hole or crack
caused by corrosion, damage to a joint
or abnormal exhaust noise, be sure to
have the vehicle inspected and repaired
by your Lexus dealer.

651-4. Theft deterrent system
1
For safety and security
■Items to check before locking the
vehicle
To prevent unexpected triggering of
the alarm and vehicle theft, make sure
of the following:
 Nobody is in the vehicle.
 The windows, moon roof (if
equipped) and panoramic moon
roof (if equipped) are closed before
the alarm is set.
 No valuables or other personal
items are left in the vehicle.
■Setting
Close the doors, trunk and hood, and
lock all the doors. The system will be
set automatically after 30 seconds.
The indicator light changes from being on
to flashing when the system is set.
■Deactivating or stopping
Do one of the following to deactivate
or stop the alarms:
 Unlock the doors.
 Turn the engine switch to ACCES-
SORY or IGNITION ON mode, or
start the engine. (The alarm will be
deactivated or stopped after a few
seconds.)
■System maintenance
The vehicle has a maintenance-free type
alarm system.
■Triggering of the alarm
The alarm may be triggered in the following
situations:
(Stopping the alarm deactivates the alarm
system.)
●The trunk is opened using the mechanical
key.
●A person inside the vehicle opens a door,
the trunk or hood, or unlocks the vehicle.
Alarm
The alarm uses light and sound to
give an alert when an intrusion is
detected.
The alarm is triggered in the follow-
ing situations when the alarm is set:
 A locked door or trunk is
unlocked or opened in any way
other than using the entry func-
tion, wireless remote control or
mechanical key. (The doors will
lock again automatically.)
 The hood is opened.
Setting/deactivating/stopping
the alarm system

702-1. Instrument cluster
*1: These lights come on when the engine switch is turned to IGNITION ON
mode to indicate that a system check is
being performed. They will turn off after
the engine is started, or after a few sec-
onds. There may be a malfunction in a
system if the lights do not come on, or
turn off. Have the vehicle inspected by
your Lexus dealer.
*2: This light illuminates on the multi-infor-mation display.
*3: This light illuminates on the center panel.
*4: F SPORT models: This light comes on when the engine switch is turned to
IGNITION ON mode to indicate that a
system check is being performed. They
will turn off after the engine is started, or
after a few seconds. There may be a
malfunction in a system if the lights do
not come on, or turn off. Have the vehi-
cle inspected by your Lexus dealer.
The indicators inform the driver of the
operating state of the vehicle’s various
systems.(flashes)
(Canada)
Parking brake indicator
(  P.425)
(flashes)
Brake hold operated indicator*1
(  P.426)
Master warning light
*4
(  P.426)
WARNING
■If a safety system warning light does
not come on
Should a safety system light such as the
ABS and SRS warning light not come on
when you start the engine, this could
mean that these systems are not available
to help protect you in an accident, which
could result in death or serious injury.
Have the vehicle inspected by your
Lexus dealer immediately if this occurs.
Indicators
Turn signal indicator ( P.175)
(U.S.A.)
Headlight indicator ( P.180)
(Canada)
Tail light indicator ( P.180)
Headlight high beam indicator
(  P.181)
AHB indicator ( P.183)
PCS warning light
*1, 2
(  P.208, 218)
Cruise control indicator
(  P.248)
Dynamic radar cruise control
indicator ( P.241)
Cruise control “SET” indicator
(  P.241)
(white)
LTA indicator ( P.232)
(green)
LTA indicator ( P.232)
(orange)
(flashes)LTA indicator ( P.232)
BSM outside rear view mirror
indicators
*1, 3 (if equipped)
(  P.251, 266)
BSM indicator (if equipped)
(  P.251)

722-1. Instrument cluster
*1: These lights come on when the engine switch is turned to IGNITION ON
mode to indicate that a system check is
being performed. They will turn off after
the engine is started, or after a few sec-
onds. There may be a malfunction in a
system if the lights do not come on, or
turn off. Have the vehicle inspected by
your Lexus dealer.
*2: This light comes on when the system is turned off.
*3: This light illuminates on the outside rear view mirrors.
*4: This light illuminates on the multi-infor- mation display.
*5: When the outside temperature is approximately 37°F (3°C) or lower, this
indicator will flash for approximately 10
seconds, then stay on.
*6: This light illuminates on the center panel. Comfort mode indicator
(
 P.292)
Eco drive mode indicator
(  P.292)
Sport S mode indicator
(  P.292)
Sport S+ mode indicator
(  P.292)

792-1. Instrument cluster
2
Vehicle status information and indicators
■Display items
 Odometer
Displays the total distance the vehicle has
been driven.
Trip meter A/trip meter B
Displays the distance the vehicle has been
driven since the meter was last reset. Trip
meters A and B can be used to record and
display different distances independently.
 Distance until next engine oil
change
Displays the distance the vehicle can be
driven until an oil change is necessary.
■Changing the display
Each time the “ODO TRIP” switch is
pressed, the displayed item will be changed. When the trip meter is dis-
played, pressing and holding the switch
will reset the trip meter.
■Pop-up display
The distance until the next engine oil
change will displayed when a warning
message indicating that oil mainte-
nance should be performed soon or is
required is displayed.
The brightness of the instrument panel
lights can be adjusted.
1
Darker
2
Brighter
■Brightness of the meters (day mode and
night mode)
The brightness of the meters changes
between day mode and night mode.
●Day mode: When the tail lights are off or
WARNING
For example, there is a lag between the
driver’s shifting and the new gear number
appearing on the display. This lag could
cause the driver to downshift again,
causing rapid and excessive engine brak-
ing and possibly an accident resulting in
death or injury.
NOTICE
■To prevent damage to the engine and
its components
●Do not let the indicator needle of the
tachometer enter the red zone, which
indicates the maximum engine speed.
●The engine may be overheating if the
engine coolant temperature gauge is
in the red zone (H). In this case, imme-
diately stop the vehicle in a safe place,
and check the engine after it has
cooled completely. ( P.444)
Odometer and trip meter dis-
play
Changing the instrument panel
light brightness

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