2020 LEXUS LS500H check engine light

4357-2. Steps to take in an emergency
7
When trouble arises
( P.439)
 The battery terminal connections
may be loose or corroded.
( P.385)
The engine starting system may be
malfunctioning due to an electrical
problem such as electronic key battery
depletion or a blown fuse. However, an
interim measure is available to start the
engine. ( P.435)
One of the following may be the cause
of the problem:
 One or both of the battery terminals
may be disconnected. ( P.385)
 The battery may be discharged.
( P.439)
 There may be a malfunction in the
steering lock system.
Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the
following steps can be used as an
interim measure to start the engine if
the engine switch is functioning nor- mally.
Do not use this starting procedure
except in cases of emergency.
1
Press the parking brake switch to
check that the parking brake is set.
(P.176)
Parking brake indicator will come on.
2 Turn the engine switch to ACCES-
SORY mode.
3 Press and hold the engine switch
for about 15 seconds while
depressing the brake pedal firmly.
Even if the engine can be started using
the above steps, the system may be
malfunctioning. Have the vehicle
inspected by your Lexus dealer.
The starter motor does not turn
over
The starter motor does not turn
over, the interior lights and head-
lights do not turn on, or the horn
does not sound.
Starting the engine in an emer-
gency

4558-1. Specifications
8
Vehicle specifications
matching quality to satisfy the above specification. Please contact your Lexus dealer for
further details.
2WD models
AWD models
*: Your Lexus vehicle is filled with “Toyota Genu ine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Ge nuine Differential Gear Oil” or an equivalent oil of
matching quality to satisfy th e above specification. Please contact your Lexus dealer for
further details.
*1: Minimum pedal clearance when depressed with a force of 112 lbf (500 N, 51 kgf) while
the engine is running.
When performing the brake pedal inspection, also be sure to check that the brake sys-
tem warning light is not illuminated when th e engine is running. (If the brake system
Rear differential
Oil capacity0.90 qt. (0.85 L, 0.75 Imp. qt.)
Oil type and viscosity*Toyota Genuine Differential gear oil LT 75W-85
GL-5 or equivalent
Oil capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosity*Toyota Genuine Differential gear oil LT 75W-85
GL-5 or equivalent
Brakes
Pedal clearance*14.8 in. (121 mm) Min.*3
4.8 in. (122 mm) Min.*4
Pedal free play0.04  0.24 in. (1  6 mm)
Brake pad wear limit0.04 in. (1 mm)
Parking brake lining wear limit0.04 in. (1 mm)
Parking brake indicator*2
When pushing the parking brake switch for 1 to 2
seconds: comes on
When pulling the parking brake switch for 1 to 2
seconds: turns off
Fluid typeFMVSS No.116 DOT 3 or SAE J1703
FMVSS No.116 DOT 4 or SAE J1704

497What to do if... (Troubleshooting)
In this case, the engine can be started in a
temporary way. (P.438)
Is the battery discharged?
( P.439)
 It is locked automatically to prevent
theft of the vehicle. ( P.165)
 Is the window lock switch pressed?
The power window except for the one at
the driver’s seat cannot be operated if the
window lock switch is pressed. ( P.145)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY mode for a period of
time. ( P.168)
 The seat belt reminder light is flash-
ing
Are the driver and the front passenger
wearing the seat belts? ( P.422)
 The parking brake indicator is on
Is the parking brake released? ( P.176)
Depending on the situation, other
types of warning buzzer may also sound. (
P.419, 429)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
( P.65)
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.)
 Is the message displayed on the
multi-information display?
Check the message on the multi-informa-
tion display. ( P.429)
 When a warning light turns on or a
warning message is displayed, refer
to P.419, 429.
The steering wheel cannot be
turned after the engine is
stopped
The windows do not open or
close by operating the power
window switches
The engine switch is turned off
automatically
A warning buzzer sounds during
driving
An alarm is activated and the
horn sounds
A warning buzzer sounds when
leaving the vehicle
A warning light turns on or a
warning message is displayed
When a problem has occurred
If you have a flat tire

502Alphabetical Index
If a warning message is displayed..... 429
If the battery is discharged .................... 439
If the electronic key does not operate properly....................................................... 437
If the engine will not start ....................... 434
If the fuel filler door cannot be opened ......................................................................... 436
If the vehicle is trapped in rising water411
If you have a flat tire .................................. 433
If you lose your keys................................. 436
If you think something is wrong ........... 417
If your vehicle becomes stuck............. 447
If your vehicle has to be stopped in an
emergency ................................................. 410
If your vehicle needs to be towed ....... 413
If your vehicle overheats ........................ 444
Engine ACCESSORY mode .............................. 168
Compartment ..............................................377
Engine compartment cover ................. 378
Engine switch................................................ 165
Fuel pump shut off system ..................... 418
Hood................................................................ 375
How to start the engine........................... 165
Identification number .................................451
If the engine will not start ....................... 434
If your vehicle has to be stopped in an
emergency ................................................. 410
Ignition switch (engine switch) ............ 165
Overheating................................................. 444
Tachometer ............................................. 73, 76
Engine compartment cover .................... 378
Engine coolant Capacity ......................................................... 453
Checking ....................................................... 382
Preparing and checking before winter.........................................................................303
Engine coolant temperature gauge 73, 76
Engine immobilizer system ........................ 63
Engine oil Capacity ......................................................... 452
Checking ...................................................... 380 Preparing and checking before winter
......................................................................... 303
Warning light ...............................................420
Engine oil maintenance data ................... 381
Engine switch ..................................................165 Auto power off function........................... 168
Changing the engine switch modes . 168
If your vehicle has to be stopped in an emergency .................................................. 410
EPS (Electric Power Steering) .............. 298 Warning light ............................................... 422
Event data recorder (E DR) ............................7
F
FCTA (Front Cross Traffic Alert) ......... 223
First-aid kit storage belt ............................ 344
Flat tire
Tire pressure warning system ............ 389
Floor mats ...........................................................22
Fluid Automatic transmission ..........................454
Brake ............................................................... 455
Washer .......................................................... 384
Footwell light ................................................. 334
Front automatic air conditioning system ............................................................................ 317
Front Cross Traffic Alert (FCTA) ......... 223
Front passenger occupant classification system .............................................................. 39
Front seats Adjustment ....................................................... 119
Cleaning ........................................................ 365
Correct driving posture ............................ 23
Driving position memory ........................ 130
Head restraints............................................. 135
Memory recall function............................ 133
Power easy access system .................... 130
Refresh system ..............................................124
Seat heaters ................................................. 330
Seat position memory .............................. 130
Seat ventilators ........................................... 330

504Alphabetical Index
InitializationItems to initialize .........................................484
Maintenance .....................................368, 381
Power windows............................................ 143
Tire pressure warning system ............. 392
Inside door handle lights .......................... 334
Inside rear view mirror ............................... 140
Instrument panel light control ........... 75, 79
Intercooler...................................................... 383
Intercooler coolant Capacity ......................................................... 453
Checking ....................................................... 382
Interior lights.................................................. 334 Front interior light ...................................... 334
Rear interior light ....................................... 334
Intuitive parking assist..................... 257, 259 Function .......................................................... 259
Warning message........................... 261, 277
J
JackPositioning a floor jack............................ 375
Jam protection function Electronic roof sunshade........................ 150
Moon roof .......................................................146
Panoramic moon roof.............................. 150
Power trunk opener and closer .......... 109
Power windows............................................ 143
Rear door sunshade ............................... 350
K
Keyless entrySmart access system with push-button start ..................................................................... 111
Wireless remote control........................... 98
Keys Battery-saving function ..............................112
Electronic key ................................................. 96
Engine switch................................................ 165
If the electronic key does not operate properly....................................................... 437 If you lose your keys .................................436
Key number plate .........................................96
Keyless entry .......................................... 100, 111
Mechanical key .............................................. 96
Replacing the battery .............................. 403
Warning buzzer ............................................ 112
Wireless remote control ...........................98
Knee airbags .................................................... 29
L
Lane change assist function .................... 226
Lane Tracing Assist (LTA) Operation ...................................................... 226
Warning messages...................................238
Language (multi-information display) ... 85
LATCH anchors ............................................. 53
LDH (Lexus Dynamic Handling system) .......................................................................... 298
Lever Auxiliary catch lever .................................375
Hood lock release lever .........................375
Internal trunk release lever..................... 109
Shift lever ......................................................... 169
Turn signal lever ...........................................175
Wiper lever .................................................... 185
Lexus climate concierge ............................315
Lexus Dynamic Handling system (LDH) .......................................................................... 298
Lexus Enform Safety Connect.................. 58
Lexus Safety System + 2.0 AHB (Automatic High Beam) ............. 183
Dynamic radar cruise control with full-speed range ........................................241
LTA (Lane Tracing Assist) .................... 226
PCS (Pre-Collision System) ..................216
RSA (Road Sign Assist)..........................238
Lexus Safety System + A AHB (Automatic High Beam) ............. 183
Dynamic radar cruise control with full-speed range ........................... 238, 241
FCTA (Front Cross Traffic Alert)...... 223
LTA (Lane Tracing Assist) .................... 226

510Alphabetical Index
Checking ....................................................... 387
If you have a flat tire .................................. 433
Inflation pressure........................................399
Information ......................................................461
Replacing .......................................................395
Rotating tires ............................................... 388
Run-flat tires .................................... 389, 433
Size....................................................................456
Snow tires ......................................................303
Tire inflation pressure display function
.........................................................................389
Tire pressure warning system .............389
Warning light ............................................... 423
Top tether strap............................................... 55
Total load capacity ....... ............................... 450
Towing Dinghy towing ...............................................164
Emergency towing ..................................... 413
Towing eyelet ................................................416
Trailer towing .................................................163
TRAC (Traction Control) ........................ 298
Traction Control (TRAC) ........................ 298
Trailer towing ..................................................163
Transmission Automatic transmission ............................169
Driving mode select switch .................. 292
M mode ............................................................ 174
Paddle shift switches ........................ 173, 174
Snow mode .................................................... 172
Trip meters .................................................74, 79
Trunk .................................................................. 104 Hands Free Power Trunk Lid ...............107
Internal trunk release lever .................... 109
Power trunk opener and closer .......... 106
Smart access system with push-button start ..................................................................107
Trunk closer switch.................................... 108
Trunk easy closer........................................ 108
Trunk features.............................................. 343
Trunk grip ....................................................... 108
Trunk lid light................................................. 108
Trunk light....................................................... 108 Trunk opener main switch........................ 110
Trunk opener switch ................................. 106
Wireless remote control ......................... 107
Trunk lid light .................................................. 108
Trunk light ........................................................ 108
Turn signal lights Replacing light bulbs ............................... 408
Turn signal lever ...........................................175
U
USB charging ports.................................... 346
V
Vanity lights....................................................350
Vanity mirrors ...............................................350
Variable Gear Ratio Steering (VGRS)298
VDIM (Vehicle Dynamics Integrated Man-agement)...................................................... 298
Vehicle data recording ....................................7
Vehicle Dynamics Integrated Manage- ment (VDIM).............................................. 298
Vehicle identification number ................ 450
Vehicle Stability Control (VSC) ........... 297
Ventilators (seat ventilators)................... 330
VGRS (Variable Gear Ratio Steering)298
VSC (Vehicle Stability Control) ........... 297
W
Warning buzzers ABS .....................................................................421
Airbags............................................................420
Approach warning.................................... 247
Brake hold ..................................................... 426
Brake Override System ...........................421
Brake system................................................. 419
Charging system........................................420
Downshifting ..................................................174
Drive-Start Control.....................................421
Electric power steering........................... 422
Engine..............................................................420

511Alphabetical Index
Hands off steering wheel warning (LTA)......................................................................... 237
High coolant temperature ......................419
Intuitive parking assist.................. 265, 423
Low engine oil pressure......................... 420
LTA (Lane Tracing Assist)226, 229, 423
Open door............................................ 101, 103
Open window ............................................... 144
PKSA (Parking Support Alert) ...........258
PKSB (Parking Support Brake) ......... 424
Pop Up Hood ............................................... 421
Pre-collision braking......................205, 217
RCD (Rear Camera Detection) ........ 424
RCTA (Rear Cross Traffic Alert) ...... 424
Seat belt .......................................................... 422
Warning lights.................................................419 ABS .................................................................... 421
Brake hold operated indicator ........... 426
Brake Override System ........................... 421
Brake system .................................................419
Charging system ....................................... 420
Drive-Start Control .................................... 421
Electric power steering .......................... 422
High coolant temperature ......................419
Intuitive parking assist OFF indicator423
Low engine oil pressure......................... 420
Low fuel level ............................................... 422
LTA indicator ............................................... 423
Malfunction indicator lamp................... 420
Master warning light ................................ 426
Parking brake indicator .......................... 425
PKSB OFF indicator ................................ 424
Pop Up Hood ............................................... 421
Pre-collision system ................................. 425
RCD OFF indicator ................................. 424
RCTA OFF indicator............................... 424
Seat belt reminder light .......................... 422
Slip indicator ................................................ 425
SRS.................................................................... 420
Tire pressure ................................................ 423
Warning messages ..................................... 429
Warning reflector storag e belt.............. 344Washer
Adding............................................................ 384
Preparing and checking before winter......................................................................... 303
Switch................................................................ 185
Washing and waxing.................................. 362
Weight Cargo capacity ............................................ 163
Load limits ...................................................... 163
Weight............................................................ 450
Wheels Replacing wheels ...................................... 395
Size ................................................................... 456
Window lock switch .....................................145
Windows Power windows ............................................143
Rear window defogger............................ 318
Washer ............................................................ 185
Windshield wiper de-icer ........................ 323
Windshield wipers Position............................................................. 188
Rain-sensing windshield wipers .......... 185
Winter driving tips....................................... 303
Wireless remote control Battery-Saving Function............................ 112
Locking/Unlocking .....................................98
Replacing the battery .............................. 403
For information regarding the equipment listed below, refer to
the “NAVIGATION AND MULTI-
MEDIA SYSTEM OWNER’S
MANUAL”.
· Navigation system
· Audio/visual system
· Rear seat entertainment system
· Lexus parking assist monitor