
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

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

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

5031-1. What to do if... (Troubleshooting)
LS500_OM_OM50F54U_(U) 503Alphabetical Index
Light bulbs
Replacing ...................................................... 408
Lights
Automatic High Beam system..............178
Front interior lights ......................................331
Front personal lights................................. 332
Headlight switch .......................................... 175
Interior lights.................................................330
Interior lights list..........................................330
Rear interior lights .......................................331
Rear personal lights.................................. 332
Replacing light bulbs............................... 408
Trunk lid light................................................. 104
Trunk light....................................................... 104
Turn signal lever ...........................................169
Vanity lights .................................................. 345
Welcome light illumination control .... 176
LKA (Lane-Keeping Assist)
Operation........................................................ 231
Warning messages .................................. 237
Lock steering column ................................. 160
LTA (Lane Tracing Assist)
Operation........................................................ 221
Warning messages .................................. 229
Luggage mats ............................................... 339
M
Maintenance
Do-it-yourself maintenance ................. 373
General maintenance .............................369
Maintenance data......................................448
Maintenance requirements ..................368
Malfunction indicator lamp .......................419
Master warning light .................................. 425
Menu icons......................................................... 77
Meter
Changing the main meter location ..... 76
Clock ..........................................................69, 72
Indicators .......................................................... 66
Instrument panel light control ..........71, 75
Meter control switches ............................... 77
Meters ........................................................69, 72 Multi-information display .......................... 76
Settings................................................................ 81
Units.................................................................... 80
Warning lights .............................................. 418
Warning message .....................................428
Micro dust and pollen filter .......................319
Mirrors
Inside rear view mirror ............................. 136
Outside rear view mirror defoggers .314
Outside rear view mirrors.......................137
Vanity mirrors ..............................................345
Moon roof
Door lock linked moon roof operation
................................................................. 142, 146
Jam protection function ............................142
Operation ........................................................142
Multi-information display .............................76
Audio system-linked display .................... 81
Boost gauge .................................................... 79
Drive information 1/Drive information 2
............................................................................. 78
Driving information display ...................... 78
Driving support system information dis-
play..................................................................... 81
Dynamic radar cruise control with
full-speed range ........................................241
Eco Driving Indicator.................................. 79
Gear Position ................................................ 80
G-force ............................................................. 80
LKA (Lane-Keeping Assist) ................. 234
LTA (Lane-Tracing Assist) ................... 225
Menu icons .......................................................77
Meter control switches ...............................77
Navigation system-linked display ......... 81
Pop-up display ............................................... 76
Settings................................................................ 81
Suggestion function ..................................... 82
Tire pressure ............................................... 388
Units.................................................................... 80
Vehicle sway warning ............................... 80
Warning message .....................................428

504 Alphabetical Index
LS500_OM_OM50F54U_(U) N
Navigation system-linked display..... 81, 83
Noise from under vehicle ...............................6 O
“ODO TRIP” switch .............................. 70, 75
Odometer ................................................. 70, 75
Odometer and trip meter display
Display items .......................................... 70, 75
“ODO TRIP” switch ........................... 70, 75
Pop-up display.........................................71, 75
Oil
Engine oil .......................................................450
Front differential oil ................................... 452
Rear differential oil .................................... 453
Opener
Fuel filler door............................................... 185
Hood................................................................ 375
Trunk ..................................................................102
Outer foot lights
Location..........................................................330
Outside door handle lights...................... 330
Outside rear view mirrors
Adjustment...................................................... 137
BSM (Blind Sport Monitor) ...................251
Folding ............................................................. 138
Linked mirror functi on when reversing
........................................................................... 137
Mirror position memory........................... 127
Outside rear view mirror defoggers . 314
RCTA function ............................................ 264
Outside temperature............................ 69, 72
Overheating .................................................. 443
P
Paddle shift switches ..........................167, 168
Panic mode ....................................................... 94
Panoramic moon roof
Jam protection function............................146
Operation........................................................ 144 Parking assist sensors (intuitive parking
assist) ............................................................. 257
Parking brake
Operation ....................................................... 170
Parking brake engaged warning buzzer
............................................................................ 172
Warning light ...............................................425
Warning message ....................................... 172
Parking lights
Light switch .....................................................175
Replacing light bulbs ............................... 408
Parking Support Brake function (for
rear-crossing vehicles) .......................... 282
Function ..........................................................282
Parking Support Brake function (rear
pedestrians) ...................................... 271, 286
Function ......................................................... 286
Parking Support Brake function
(rear-crossing vehicles)........................... 271
Parking Support Brake function (static
objects) ................................................ 271, 277
Function .......................................................... 277
PCS (Pre-Collision System)
Function ...............................................200, 210
PCS OFF switch ............................. 203, 213
Warning light ............................................... 424
Warning message ............................ 210, 217
Personal lights............................................... 330
PKSA (Parking Support Alert) .............. 256
PKSB (Parking Support Brake)............... 271
Warning message ..................................... 275
Pop Up Hood................................................... 38
Power easy access system ........................ 127
Power outlets ................................................ 344
Power rear seat ..............................................123
Power steering (Elect ric power steering
system) .......................................................... 294
Warning light .................................................421
Power trunk opener and closer ..............102
Power windows
Door lock linked window operation . 140
Jam protection function ........................... 139

5051-1. What to do if... (Troubleshooting)
LS500_OM_OM50F54U_(U) 505Alphabetical Index
Operation........................................................139
Window lock switch ....................................141
Pre-Collision System (PCS)
Function ............................................... 200, 210
PCS OFF switch ..............................203, 213
Warning light ............................................... 424
Warning message.............................210, 217 R
Radar cruise control (dynamic radar cruise
control with full-speed range)... 238, 241
Radiator ........................................................... 382
RCD (Rear camera detection) .............. 256
Warning message..................................... 269
RCD (Rear Camera Detection)
Function ..........................................................268
RCTA
Function .......................................................... 264
Warning message..................................... 265
RCTA (Rear Cross Traffic Alert) ......... 256
RCTA function ............................................. 265
Rear air conditioning system .................. 323
Rear Cross Traffic Alert (RCTA) ......... 264
Rear door sunshades ................................. 346
Rear Multi Operation Panel ...................308
Rear seat position memory ........................ 131
Rear seats .........................................................123
Adjustment...................................................... 123
Head restraints ............................................. 132
Rear seat position memory ..................... 131
Relaxation system........................................ 126
Seat heaters .................................................. 326
Seat ventilators............................................ 326
Rear side marker lights
Light switch ..................................................... 175
Replacing light bulbs............................... 408
Rear sunshades ............................................ 347
Rear turn signal lights
Replacing light bulbs............................... 408
Turn signal lever ...........................................169
Rear view mirror
Inside rear view mirror..............................136 Outside rear view mirrors.......................137
Rear window defogger ...............................314
Refueling
Capacity .........................................................449
Fuel types .......................................................449
If the fuel filler do or cannot be opened
..........................................................................435
Opening the fuel tank cap ..................... 185
Remote Touch .............................................. 304
Replacing
Electronic key battery ............................. 403
Fuses................................................................ 405
Light bulbs .................................................... 408
Tires ................................................................. 396
Resetting the message indicating mainte-
nance is required ...................................... 368
Rev indicator .....................................................74
Rev peak..............................................................74
Road Sign Assist .......................................... 238
RSA (Road Sign Assist) ............................ 238
Run-flat tires....................................... 388, 432
S
Seat belt buckle lights ................................ 330
Seat belt reminder light....................421, 422
Seat belts............................................................ 24
Automatic Locking Retractor................. 26
Child restraint system installation ......... 46
Cleaning and maintaining the seat belt
......................................................................... 365
Easy Access Buckle .................................... 26
Emergency Locking Retractor .............. 26
How to wear your seat belt ..................... 25
How your child should wear the seat belt
............................................................................. 25
Pregnant women, proper seat belt use
............................................................................. 24
Reminder light and buzzer ......... 421, 422
Seat belt extender......................................... 25
SRS warning light........................................ 419
Seat heaters ................................................... 326
Seat position memory......................... 127, 131

5071-1. What to do if... (Troubleshooting)
LS500_OM_OM50F54U_(U) 507Alphabetical Index
Switches
Activating the Automatic High Beam178
Automatic High Beam system..............178
Brake Hold switch ...................................... 173
Door lock switches ...................................... 98
Driving mode select switch ..................289
Driving position memory switches ..... 127
Dynamic radar cruise control with
full-speed range switch ....................... 242
Electronic roof sunshade switches ..... 144
Emergency flashers switch .................... 410
Engine switch................................................ 160
Garage door opener switches .......... 349
Heated steering wheel switch............. 326
HUD (Head-up display) switch............85
Ignition switch............................................... 160
Instrument panel light control switches71,
75
Intuitive parking assist switch...............258
Light switches ................................................ 175
LKA (Lane-Keeping A ssist) switch.. 233
LTA (Lane-Tracing Assist) switch .... 225
Meter control switches ............................... 77
Moon roof switches ................................... 142
“ODO TRIP” switch ........................... 70, 75
Outside rear view mi rror switches ..... 137
Paddle shift switches ....................... 167, 168
Panoramic moon roof switches ........... 144
Parking brake switch .................................170
PCS OFF switch ..............................203, 213
PKSB (Parking Support Brake) switch
..........................................................................272
Power door lock switch ............................ 98
Power window switches ..........................139
RCD (Rear camera detection) switch
.........................................................................268
RCTA switch................................................ 264
Rear door sunshade switch.................. 346
Rear seat heater ......................................... 324
Rear seat position memory switches.. 131
Rear seat ventilator ................................... 324
Rear sunshades switch ........................... 347 Rear window and outside rear view mir-
ror defoggers switch ............................. 313
Seat heater switches.................................326
Seat ventilator switches ..........................326
Snow mode switch......................................167
“SOS” button............................................... 355
Tilt and telescopic steering control switch
........................................................................... 135
Tire pressure warning reset switch...392
Trunk closer switch .................................... 104
Trunk opener main switch...................... 106
Trunk opener switch ................................. 102
Vehicle-to-vehicle distance switch... 242
VSC OFF switch .......................................295
Window lock switch.................................... 141
Windshield wiper and washer switch180
Windshield wiper de-icer switch.........317
T
Tachometer............................................... 69, 72
Rev indicator ................................................... 74
Rev peak............................................................ 74
Tail lights
Light switch .....................................................175
Replacing light bulbs ............................... 408
Theft deterrent system
Alarm...................................................................60
Engine immobilizer system......................58
Tire inflation pressure
Maintenance data ......................................454
Tire inflation pressure display function
......................................................................... 388
Warning light ............................................... 422
Tire information ............................................ 459
Glossary ......................................................... 462
Size ................................................................... 460
Tire identification number..................... 460
Uniform Tire Quality Grading ............. 461
Tire pressure display ... ...............................388
Tire pressure warning system
Function ......................................................... 388
Initializing........................................................392