2018 LEXUS LS500 parking brake

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

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

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

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

506 Alphabetical Index
LS500_OM_OM50F54U_(U) Seat ventilators ............................................. 326
Seating capacity............................................ 158
Seats
Adjustment............................................. 116, 123
Adjustment precautions ............................ 116
Child seats/child restraint system installa-
tion .................................................................... 45
Cleaning.........................................................365
Driving position memory......................... 127
Front seat refresh system...........................121
Head restraints ............................................. 132
Power easy access system ..................... 127
Properly sitting in the seat .........................23
Rear seat relaxation system.................... 126
Seat heaters .................................................. 326
Seat position memory .......................127, 131
Seat ventilators............................................ 326
Secondary Collision Brake ..................... 294
Sensor
Automatic headlight system................... 175
Automatic High Beam system..............178
Inside rear view mirror..............................136
Intuitive parking assist.............................. 257
LKA (Lane-Keeping Assist)................... 231
LTA (Lane Tracing Assist)...................... 221
Parking Support Brake function
(rear-crossing vehicles)...................... 282
Parking Support Brake function (static
objects)........................................................ 278
Radar sensor.......................... 188, 195, 252
Rain-sensing windshield wipers............ 181
RCTA .............................................................. 265
Service reminder message ..................... 368
Shift lever
Automatic transmission ............................163
Shift lever light .............................................. 330
Shopping bag hooks .................................. 339
Side airbags ...................................................... 29
Side marker lights
Light switch ..................................................... 175
Replacing light bulbs............................... 408 Side mirrors
Adjustment ......................................................137
BSM (Blind Sport Monitor)................... 251
Folding.............................................................. 138
Linked mirror functi on when reversing
............................................................................137
Mirror position memory ........................... 127
RCTA function ............................................ 264
Side turn signal lights
Replacing light bulbs ............................... 408
Turn signal lever .......................................... 169
Side windows ..................................................139
Smart access system with push-button
start
Antenna location ......................................... 107
Entry functions ................................................ 96
Starting the engine ..................................... 160
Snow mode ...................................................... 167
Snow tires ....................................................... 299
Spark plug ........................................................451
Specifications ................................................ 448
Speedometer ........................................... 69, 72
Steering lock
Column lock release ................................. 160
Steering lock system warning message
........................................................................... 160
Steering wheel
Adjustment ..................................................... 135
Heated steering wheel ............................326
Meter control switches ...............................77
Power easy access system ..................... 127
Steering wheel position memory......... 127
Stop lights
Replacing light bulbs ............................... 408
Storage features .......................................... 334
Stuck
If the vehicle becomes stuck ................446
Suggestion function....................................... 82
Sun visors ........................................................ 345
Sunshade
Roof.....................................................................142

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

5091-1. What to do if... (Troubleshooting)
LS500_OM_OM50F54U_(U) 509Alphabetical Index
Brake Override System ......................... 420
Brake system ................................................ 418
Charging system .........................................419
Downshifting .......................................168, 169
Drive-Start Control .................................. 420
Electric power steering ............................ 421
Engine ...............................................................419
High coolant temperature ..................... 418
Intuitive parking assist.................. 263, 423
LKA (Lane-Keeping Assist)....... 231, 422
Low engine oil pressure...........................419
LTA (Lane Tracing Assist).......... 221, 422
Open door.............................................. 97, 99
Open window .............................................. 140
PKSA (Parking Support Alert) ........... 257
PKSB (Parking Support Brake) ......... 424
Pop Up Hood ............................................. 420
Pre-collision braking......................200, 212
RCD (Rear Camera Detection) ........ 423
RCTA (Rear Cross Traffic Alert) ...... 423
Seat belt ................................................ 421, 422
Warning lights................................................ 418
ABS .................................................................. 420
Brake hold operated indicator ........... 425
Brake Override System ......................... 420
Brake system ................................................ 418
Charging system .........................................419
Drive-Start Control .................................. 420
Electric power steering ............................ 421
High coolant temperature ..................... 418
Intuitive parking assist OFF indicator423
LKA indicator .............................................. 422
Low engine oil pressure...........................419
Low fuel level ................................................. 421
LTA indicator ............................................... 422
Malfunction indicator lamp.....................419
Master warning light ................................ 425
Parking brake indicator .......................... 425
PKSB OFF indicator ................................ 424
Pop Up Hood ............................................. 420
Pre-collision system ................................. 424
RCD OFF indicator ................................. 423 RCTA OFF indicator ............................... 423
Seat belt reminder light................. 421, 422
Slip indicator ................................................. 424
SRS ..................................................................... 419
Tire pressure ................................................ 422
Warning messages ..................................... 428
Warning reflector storage belt.............. 340
Washer
Checking ...................................................... 383
Preparing and checking before winter
..........................................................................299
Switch................................................................180
Washing and waxing.................................. 362
Weight
Cargo capacity ............................................ 158
Load limits ...................................................... 158
Weight............................................................ 448
Wheels
Replacing wheels ...................................... 396
Size ....................................................................454
Window lock switch ...................................... 141
Windows
Power windows ........................................... 139
Rear window defogger.............................314
Washer ............................................................180
Windshield wiper de-icer ..........................319
Windshield wipers
Position............................................................. 183
Rain-sensing windshield wipers .......... 180
Winter driving tips....................................... 299
Wireless remote control
Battery-Saving Function..........................108
Locking/Unlocking ..................................... 94
Replacing the battery .............................. 403