2018 LEXUS LS500 Owners Manual

4951-1. What to do if... (Troubleshooting)
LS500_OM_OM50F54U_(U) 495What to do if... (Troubleshooting)
( → P.438)
 It is locked automatically to prevent
theft of the vehicle. ( → P.160)
 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.141 )
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY mode for a period of
time. ( → P.162)
 The seat belt reminder light is flash-
ing Are the driver and the front passenger
wearing the seat belts? ( →
P.421 )
 The parking brake indicator is on Is the parking brake released? ( →
P.170 )
Depending on the situation, other
types of warning buzzer may also
sound. ( → P.418, 428)  Did anyone inside the vehicle open
a door during setting the alarm? The sensor detects it and the alarm sounds.
( →
P.60 )
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.428 )
 When a warning light turns on or a
warning message is displayed, refer
to P.418, 428.
 Slow down the vehicle, drive with 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

496 What to do if... (Troubleshooting)
LS500_OM_OM50F54U_(U) extra caution, and take your vehicle
to the nearest Lexus dealer or
authorized tire dealer as soon as
possible to have the tire replaced.
( → P.432)
 Try the procedure for when the vehi-
cle becomes stuck in mud, dirt, or
snow. ( → P.446) The vehicle becomes stuck

4971-1. What to do if... (Troubleshooting)
LS500_OM_OM50F54U_(U) 497Alphabetical Index
Alphabetical Index A
A/C
Air conditioning filter ............................... 402
Front automatic air conditioning system
...........................................................................313
Micro dust and pollen filter.....................319
Rear air conditioning system ............... 323
ABS (Anti-lock Brake System).............. 294
Warning light ............................................... 420
Active stabilizer suspension system .... 294
Adaptive Front-lighting System (AFS) . 177
Adaptive Variable Suspension System295
AFS (Adaptive Front-lighting System) . 177
Air conditioning filter ................................. 402
Air conditioning system
Air conditioning filter ............................... 402
Front automatic air conditioning system
...........................................................................313
Micro dust and pollen filter.....................319
Rear air conditioning system ............... 323
Airbags
Airbag operating conditions..................... 31
Airbag precautions for your child ........ 34
Correct driving posture .............................23
Curtain shield airbag operating condi-
tions .................................................................... 31
Curtain shield airbag precautions ....... 34
Front passenger occupa nt classification
system ............................................................. 40
General airbag precautions ................... 34
Locations of airbags.................................... 29
Modification and disposal of airbags ..37
Side airbag operating conditions ........... 31
Side airbag precautions ............................ 34
Side and curtain shield airbags operating
conditions........................................................ 31
Side and curtain shield airbags precau-
tions .................................................................. 34
SRS airbags ..................................................... 29
SRS warning light ........................................419 Alarm
Alarm...................................................................60
Warning buzzer .......................................... 418
Anchor brackets ..................................... 46, 55
Antennas (smart acc ess system with
push-button start).......................................107
Anti-lock Brake System (ABS).............. 294
Warning light ...............................................420
Approach warning.......................................247
Armrest............................................................ 343
Assist grips ..................................................... 343
Audio system-linked display ........................81
Automatic headlight leveling system .... 176
Automatic High Beam ................................178
Automatic light control system................ 175
Automatic transmission ..............................163
M mode ........................................................... 168
Paddle shift switches .......................167, 168
Snow mode.....................................................167
Auxiliary boxes ................................. 338, 340
Average fuel economy................................. 78
Average vehicle speed ................................ 78
B
Back-up lights
Replacing light bulbs ............................... 408
Battery
Battery checking ....................................... 384
If the battery is discharged ................... 438
Preparing and checking before winter
..........................................................................299
Warning light ................................................ 419
Blind Spot Monitor (BSM).........................251
Boost gauge.......................................................79
Brake
Brake hold .......................................................173
Fluid...................................................................453
Parking brake ............................................... 170
Warning light ................................................ 418
Brake assist .................................................... 294
Break-in tips...................................................... 151

498 Alphabetical Index
LS500_OM_OM50F54U_(U) Brightness control
Instrument panel light control ..........71, 75
BSM (Blind Spot Monitor).........................251 C
Card key ............................................................ 92
Care
Aluminum wheels ...................................... 362
Exterior ........................................................... 362
Interior .............................................................365
Seat belts........................................................365
Cargo capacity.............................................. 158
Cargo net ....................................................... 339
Center Display ............................................. 306
Chains ..............................................................300
Child restraint system
Fixed with a LATCH system .................. 53
Fixed with a seat belt................................... 49
Front passenger occupa nt classification
system ............................................................. 40
Points to remember .................................... 45
Riding with children ..................................... 45
Types of child restraint system installation
method ........................................................... 46
Using an anchor bracket .......................... 55
Child safety
Airbag precautions...................................... 34
Battery precautions ......................385, 442
Child restraint system................................. 46
Heated steering wheel and seat heater
precautions................................................ 326
How your child should wear the seat belt
............................................................................ 25
Moon roof precautions ............................143
Panoramic moon roof precautions .... 147
Power window lock switch.......................141
Power window precautions .................. 140
Rear door child-protectors ..................... 99
Removed electronic key battery precau-
tions ...............................................................404
Seat belt extender precautions ............. 25
Seat belt precautions .................................. 45 Trunk precautions.......................................100
Child-protectors............................................. 99
Cleaning
Aluminum wheels ......................................362
Exterior............................................................362
Interior ............................................................ 365
Radar sensor .............................. 190, 191, 197
Seat belts ....................................................... 365
Clock ................................................ 69, 72, 344
Clock light ...................................................... 330
Coat hooks..................................................... 343
Coin holder .................................................... 336
Condenser ..................................................... 382
Console box .................................................. 337
Consumption screen .................................... 87
Cooling system.............................................. 381
Engine overheating................................... 443
Cornering lights ............................................. 177
Cruise control
Dynamic radar cruise control with
full-speed range ........................... 238, 241
Cup holders ................................................... 336
Current fuel consumption .......................... 78
Curtain shield airbags .................................. 29
Customizable features .............................. 468
D
Daytime running light system ................... 175
Defogger
Outside rear view mirrors.......................314
Rear window ..................................................314
Windshield ......................................................314
Differential
Front differential oi l............. .............. .........452
Rear differential oil......... .......... ........... .......453
Dimension ...................................................... 448
Dinghy towing.................................................159
Display
Center Display ........................................... 306
Dynamic radar cruise control with
full-speed range ........................................241
Head-up display............................................83

4991-1. What to do if... (Troubleshooting)
LS500_OM_OM50F54U_(U) 499Alphabetical Index
Intuitive parking assist.............................. 257
LKA (Lane-Keeping Assist)................. 234
LTA (Lane-Tracing Assist) ................... 225
Multi-information display .......................... 76
Parking Support Brake function (rear
pedestrians) ..............................................286
RCD (Rear Camera Detection) ........268
RCTA .............................................................. 264
Warning message..................................... 428
Distance until next engine oil
change ..................................................... 70, 75
Do-it-yourself maintenance .................... 369
Door courtesy lights ................................... 330
Door lock
Doors.................................................................. 96
Smart access system with push-button
start ..................................................................107
Wireless remote control........................... 94
Doors
Automatic door lock ing and unlocking
system ........................................................... 100
Door closer ..................................................... 99
Door glasses ..................................................139
Door lock.......................................................... 96
Open door warning bu zzer .......... 97, 99
Outside rear view mirrors ...................... 137
Rear door child-protectors ..................... 99
Drive distance .................................................. 78
Drive info 1/Drive info 2 .............................. 78
Driver’s seat position memory
Driving position memory......................... 127
Memory recall function ........................... 130
Power easy access system ..................... 127
Drive-start control ......................................... 151
Driving
Break-in tips .................................................... 151
Correct driving posture .............................23
Driving mode select switch ..................289
Procedures .................................................... 150
Winter drive tips......................................... 299
Driving information display ........................ 78 Driving position memory............................ 127
Memory recall function............................ 130
Power easy access system ..................... 127
Driving range ................................................... 78
Driving support system information display
...............................................................................81
DRS (Dynamic Rear Steering) .............. 294
Dynamic radar cruise control with
full-speed range .............................. 238, 241
Warning message .................................... 250
Dynamic Rear Steering (DRS) .............. 294 E
ECB (Electronically Controlled Brake Sys-
tem) ................................................................ 294
Eco Driving Indicator............................ 79, 87
Eco Driving Indicator Light .........................79
EDR (Event data recorder) ............................7
Elapsed time ..................................................... 78
Electric Power Steering (EPS) .............. 294
Warning light .................................................421
Electronic key .................................................. 92
Battery-saving function............................108
If the electronic key does not operate
properly .......................................................436
Replacing the battery .............................. 403
Electronic roof sunshade
Jam protection function ........................... 146
Operation ........................................................144
Electronically Controlled Brake System
(ECB) ............................................................ 294
Electronically modulated air suspension
............................................................................291
Emergency flashers ..................................... 410
Emergency, in case of
If a warning buzzer sounds.................... 418
If a warning light turns on........................ 418
If a warning message is displayed .....428
If the battery is discharged ................... 438
If the electronic key does not operate
properly .......................................................436

500 Alphabetical Index
LS500_OM_OM50F54U_(U) If the engine will not start ....................... 433
If the fuel filler door cannot be opened
......................................................................... 435
If you have a flat tire .................................. 432
If you lose your keys................................. 435
If you think something is wrong ...........416
If your vehicle becomes stuck............. 446
If your vehicle has to be stopped in an
emergency ................................................. 410
If your vehicle needs to be towed ....... 412
If your vehicle overheats ........................ 443
Engine
ACCESSORY mode ............................... 162
Compartment ..............................................377
Engine compartment cover ................. 378
Engine switch................................................ 160
Fuel pump shut off system ...................... 417
Hood................................................................ 375
How to start the engine........................... 160
Identification number ............................... 449
If the engine will not start ....................... 433
If your vehicle has to be stopped in an
emergency ................................................. 410
Ignition switch (engine switch) ............ 160
Overheating................................................. 443
Tachometer .............................................69, 72
Engine compartment cover .................... 378
Engine coolant
Capacity ...........................................................451
Checking ........................................................ 381
Preparing and checking before winter
......................................................................... 299
Engine coolant temperature gauge 69, 72
Engine immobilizer system ........................ 58
Engine oil
Capacity .........................................................450
Checking ....................................................... 379
Preparing and checking before winter
......................................................................... 299
Warning light .................................................419
Engine oil maintenance data ................... 381 Engine switch ................................................. 160
Auto power off function............................162
Changing the engine switch modes ..162
If your vehicle has to be stopped in an
emergency .................................................. 410
EPS (Electric Power Steering) .............. 294
Warning light .................................................421
Event data recorder (E DR) ............................7 F
FCTA (Front Cross Traffic Alert) ...........218
First-aid kit storage belt ............................ 340
Flat tire
Tire pressure warning system ............ 388
Floor mats ...........................................................22
Fluid
Automatic transmission ..........................452
Brake ................................................................453
Washer .......................................................... 383
Footwell light ................................................. 330
Front air conditioning system ...................313
Front Cross Traffic Alert (FCTA) ...........218
Front passenger occupant classification
system .............................................................. 40
Front seats
Adjustment ....................................................... 116
Cleaning ........................................................ 365
Correct driving posture ............................ 23
Driving position memory ......................... 127
Head restraints..............................................132
Memory recall function............................ 130
Power easy access system ..................... 127
Refresh system ............................................... 121
Seat heaters ..................................................326
Seat position memory ............................... 127
Seat ventilators ............................................326
Front side marker light
Light switch .....................................................175
Replacing light bulbs ............................... 408
Front turn signal lights
Replacing light bulbs ............................... 408
Turn signal lever .......................................... 169

5011-1. What to do if... (Troubleshooting)
LS500_OM_OM50F54U_(U) 501Alphabetical Index
Fuel
Capacity ......................................................... 449
Fuel gauge ...............................................69, 72
Fuel pump shut off system ...................... 417
Information .................................................... 457
Refueling ......................................................... 185
Type.................................................................. 449
Warning light ................................................. 421
Fuel consumption
Average fuel economy .............................. 78
Current fuel consumption........................ 78
Fuel filler door
If the fuel filler door cannot be opened
......................................................................... 435
Refueling ......................................................... 185
Fuel gauge ................................................. 69, 72
Fuel pump shut off system.......................... 417
Fuses ................................................................. 405
G
Garage door opener ................................. 349
Gauges ....................................................... 69, 72
Gear Position................................................... 80
G-force............................................................... 80
Glove box ....................................................... 335
Glove box light ............................................. 336
H
Hands Free Power Trunk Lid .................. 103
Head restraints ...............................................132
Headlights
Adaptive Front-lighting System (AFS)
........................................................................... 177
Automatic High Beam system..............178
Light switch ..................................................... 175
Replacing light bulbs............................... 408
Head-up display.............................................. 83
Driving information display area........... 83
Driving support system display area .. 86
Eco Driving Indicator ................................. 87
HUD (Head-up display) switch............85 Navigation system-linked display ........83
Pop-up display ...............................................86
Settings...............................................................85
Heated steering wheel .............................. 326
Heaters
Front air conditioning system ............... 313
Heated steering wheel ............................326
Outside rear view mirrors.......................314
Rear air conditioning system ............... 323
Seat heaters ..................................................326
Height control
Electronically modulated air suspension
.......................................................................... 292
Hill-start assist control ............................... 294
Hood
Open................................................................375
Pop Up Hood.................................................38
Hooks
Coat hooks ...................................................343
Retaining hooks (floor mat) ..................... 22
Horn ....................................................................135
HUD (Head-up display) switch ................ 85
I
I/M test ............................................................ 372
Identification
Engine..............................................................449
Vehicle ........................................................... 448
Ignition switch (engine switch)................ 160
Auto power off function............................162
Changing the engine switch modes ..162
If your vehicle has to be stopped in an
emergency .................................................. 410
Indicators ........................................................... 66
Initialization
Items to initialize .........................................482
Maintenance......................................368, 381
Power windows ........................................... 139
Tire pressure warning system .............392
Inside door handle lights........................... 330
Inside rear view mirror ................................136
Instrument panel light control ............. 71, 75

502 Alphabetical Index
LS500_OM_OM50F54U_(U) Intercooler...................................................... 382
Intercooler coolant
Capacity ...........................................................451
Checking ........................................................ 381
Interior lights.................................................. 330
Front interior light ......................................330
Rear interior light .......................................330
Intuitive parking assist..................... 256, 257
Function .......................................................... 257
Warning message.....................................260 J
Jack
Positioning a floor jack............................ 375
Jam protection function
Electronic roof sunshade.........................146
Moon roof ....................................................... 142
Panoramic moon roof...............................146
Power trunk opener and closer .......... 105
Power windows............................................139
Rear door sunshade ................................ 346
K
Keyless entry
Smart access system with push-button
start ..................................................................107
Wireless remote control........................... 94
Keys
Battery-saving function ........................... 108
Electronic key ................................................. 92
Engine switch................................................ 160
If the electronic key does not operate
properly....................................................... 436
If you lose your keys................................. 435
Key number plate ......................................... 92
Keyless entry .........................................96, 107
Mechanical key.............................................. 92
Replacing the battery...............................403
Warning buzzer ...........................................107
Wireless remote control........................... 94 Knee airbags .................................................... 29 L
Lane Tracing Assist (LTA)
Operation ........................................................ 221
Warning messages................................... 229
Lane-Keeping Assist (LKA)
Operation ........................................................231
Warning messages................................... 237
Language (multi-information display) .....81
LATCH anchors ............................................. 53
LDH (Lexus Dynamic Handling system)
.......................................................................... 295
Lever
Auxiliary catch lever .................................375
Hood lock release lever .........................375
Internal trunk release lever..................... 105
Shift lever ......................................................... 163
Turn signal lever .......................................... 169
Wiper lever .................................................... 180
Lexus climate concierge ............................. 311
Lexus Dynamic Handling system (LDH)
.......................................................................... 295
Lexus Enform Safety Connect............... 355
Lexus Safety System+
Automatic High Beam ............................. 178
Dynamic radar cruise control with
full-speed range ........................... 238, 241
LKA (Lane-Keeping Assist) ...................231
PCS (Pre-Collision System) ................. 210
RSA (Road Sign Assist)..........................238
Lexus Safety System+A ..............................187
Dynamic radar cruise control with
full-speed range ........................... 238, 241
FCTA (Front Cross Traffic Alert)....... 218
LTA (Lane Tracing Assist) ...................... 221
PCS (Pre-Collision System) ............... 200
RSA (Road Sign Assist)..........................238
License plate lights
Light switch .....................................................175
Replacing light bulbs ............................... 408