check LEXUS LS500 2021 Owners Manual

504What to do if... (Troubleshooting)
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
If you lose your mechanical keys,
new genuine mechanical keys can
be made by your Lexus dealer.
( P.441)
 If you lose your electronic keys, the
risk of vehicle theft increases signifi-
cantly. Contact your Lexus dealer
immediately. ( P.441)
 Is the electronic key battery weak or
depleted? ( P.410)
 Is the engine switch in IGNITION
ON mode?
When locking the doors, turn the engine
switch off. ( P.177)
 Is the electronic key left inside the
vehicle?
When locking the doors, make sure that
you have the electronic key on your per-
son.
The function may not operate prop-
erly due to the condition of the radio
wave. ( P.115)
 Is the child-protector lock set?
The rear door cannot be opened from
inside the vehicle when the lock is set.
Open the rear door from outside and then
unlock the child-protector lock. ( P.105)
 The function to prevent the elec-
tronic key from being left inside the
trunk will operate and you can open
the trunk as usual. Take the key out
from the trunk. ( P.111)
 Did you press the engine switch
while firmly depressing the brake
pedal? ( P.174)
 Is the electronic key anywhere
detectable inside the vehicle?
( P.114)
 Is the steering wheel unlocked?
( P.174)
 Is the electronic key battery weak or
depleted?
If you have a problem, check the
following before contacting your
Lexus dealer.
The doors cannot be locked,
unlocked, opened or closed
You lose your keys
The electronic key does not
operate properly
The doors cannot be locked or
unlocked
The rear door cannot be opened
The trunk lid is closed with the
electronic key left inside
If you think something is wrong
The engine does not start

505What to do if... (Troubleshooting)
In this case, the engine can be started in a
temporary way. (P.443)
Is the battery discharged?
( P.444)
 It is locked automatically to prevent
theft of the vehicle. ( P.174)
 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.155)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY mode for a period of
time. ( P.177)
 The seat belt reminder light is flash-
ing
Are the driver and the front passenger
wearing the seat belts? ( P.430)
 The parking brake indicator is on
Is the parking brake released? ( P.186)
Depending on the situation, other
types of warning buzzer may also sound. (
P.427, 436)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
( P.66)
Do one of the following to deactivate
or stop the alarms:
 Except for Canada: Unlock the
doors.
 Except for Canada: Open the trunk.
 For Canada: Unlock the doors or
open the trunk using the entry func-
tion or wireless remote control.
 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.436)
 When a warning light turns on or a
warning message is displayed, refer
to P.427, 436.
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

507Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter ...............................409
Front automatic air conditioning system......................................................................... 323
Front seat concentr ated airflow mode
(S-FLOW).................................................330
Micro dust and pollen filter...................330
Rear automatic air conditioning system ......................................................................... 333
ABS (Anti-lock Brake System).............. 304 Warning light ............................................... 429
Active stabilizer suspension system .... 304
Adaptive Front-lighting System (AFS) .192
Adaptive Variable Suspension System304
AFS (Adaptive Front-lighting System) .192
AHB (Automatic High Beam) .................193
Air conditioning filter ................................. 409
Air conditioning system Air conditioning filter ...............................409
Front automatic air conditioning system......................................................................... 323
Front seat concentr ated airflow mode
(S-FLOW).................................................330
Micro dust and pollen filter...................330
Rear automatic air conditioning system ......................................................................... 333
Airbags Airbag operating conditions..................... 31
Airbag precautions for your child ........ 34
Correct driving posture .............................23
Curtain shield airbag operating condi- tions ...................................................................32
Curtain shield airbag precautions ....... 34
Front passenger occupant classification system ............................................................. 40
General airbag precautions ................... 34
Locations of airbags.................................... 29
Modification and disposal of airbags . 36
Side airbag operating conditions ..........32
Side airbag precautions ............................ 34 Side and curtain shie
ld airbags operating
conditions ...................................................... 32
Side and curtain shield airbags precau- tions .................................................................. 34
SRS airbags...................................................... 29
SRS warning light.......................................428
Alarm ................................................................... 66 Warning buzzer ......................................... 427
Anchor brackets ..................................... 46, 55
Antennas (smart acc ess system with
push-button start)........................................ 113
Anti-lock Brake System (ABS).............. 304 Warning light ............................................... 429
Approach warning...................................... 260
Armrest............................................................ 353
Assist grips ..................................................... 353
Audio system-linked display ...................... 87
Automatic headlight leveling system ..... 191
Automatic High Beam ................................193
Automatic light control system................. 191
Automatic transmission ..............................178 M mode ........................................................... 183
Paddle shift switches .......................182, 183
Snow mode.................................................... 182
Auxiliary boxes ................................. 348, 350
Average fuel economy................................. 84
Average vehicle speed ................................ 84
B
Back-up lights Replacing light bulbs ................................. 416
Battery Battery checking ......................................... 391
If the battery is discharged .................... 444
Preparing and checking before winter......................................................................... 309
Warning light ...............................................428
Blind Spot Monitor (BSM)....................... 264
Boost gauge...................................................... 86
Brake Brake hold ......................................................188
Fluid........................................................ 389, 461

510Alphabetical Index
If a warning light turns on ...................... 427
If a warning message is displayed..... 436
If the battery is discharged .................... 444
If the electronic key does not operate properly....................................................... 442
If the engine will not start ....................... 439
If the fuel filler door cannot be opened ........................................................................... 441
If the vehicle is trapped in rising water ...........................................................................419
If you have a flat tire ..................................438
If you lose your keys................................... 441
If you think something is wrong ......... 425
If your vehicle becomes stuck............. 452
If your vehicle has to be stopped in an
emergency ................................................. 418
If your vehicle needs to be towed ....... 421
If your vehicle overheats ........................ 449
Engine ACCESSORY mode ............................... 177
Compartment .............................................383
Engine compartment cover .................384
Engine cover................................................384
Engine switch................................................. 174
Fuel pump shut off system .................... 426
Hood................................................................. 381
How to start the engine............................ 174
Identification number ............................... 457
If the engine will not start ....................... 439
If your vehicle has to be stopped in an
emergency ................................................. 418
Ignition switch (engine switch) ............. 174
Overheating................................................. 449
Tachometer ............................................ 75, 78
Engine compartment cover .................... 384
Engine coolant Capacity .........................................................459
Checking ...................................................... 388
Preparing and checking before winter.........................................................................309
Engine coolant temperature gauge 75, 78
Engine cover ................................................. 384 Engine immobilizer system ........................ 64
Engine oil
Capacity ........................................................ 458
Checking ...................................................... 386
Preparing and checking before winter......................................................................... 309
Warning light ...............................................428
Engine oil maintenance data .................. 387
Engine switch .................................................. 174 Auto power off function............................ 177
Changing the engine switch modes .. 177
If your vehicle has to be stopped in an emergency .................................................. 418
EPS (Electric Power Steering) .............. 304 Warning light .............................................. 430
Event data recorder (E DR) ........................... 8
F
FCTA (Front Cross Traffic Alert) ......... 235
First-aid kit storage belt ............................350
Flat tire
Tire pressure warning system ............ 395
Floor mats ...........................................................22
Fluid Automatic transmission ......................... 460
Brake ................................................................. 461
Washer .......................................................... 390
Footwell light ................................................. 340
Front automatic air conditioning system .......................................................................... 323
Front Cross Traffic Alert (FCTA) ......... 235
Front passenger occupant classification system .............................................................. 40
Front seats Adjustment ....................................................... 121
Cleaning ...........................................................371
Correct driving posture ............................ 23
Driving position memory ........................ 133
Head restraints............................................. 138
Memory recall function............................ 135
Power easy access system .................... 133
Refresh system ..............................................126

512Alphabetical Index
Ignition switch (engine switch)................. 174Auto power off function ........................... 177
Changing the engine switch modes.. 177
If your vehicle has to be stopped in an
emergency ................................................. 418
Indicators ............................................................72
Initialization Items to initialize .........................................490
Maintenance .................................... 374, 387
Power windows............................................153
Tire pressure warning system .............399
Inside door handle lights .......................... 340
Inside rear view mirror ...................... 142, 143
Instrument panel light control .............77, 81
Intercooler...................................................... 389
Intercooler coolant Capacity .........................................................459
Checking ...................................................... 388
Interior lights.................................................. 340 Front interior light ......................................340
Rear interior light .......................................340
Intuitive parking assist....................... 271, 272 Function ...........................................................272
Warning message......................... 274, 288
J
JackPositioning a floor jack............................. 381
Jam protection function Electronic roof sunshade........................ 160
Moon roof ...................................................... 156
Panoramic moon roof.............................. 160
Power trunk opener and closer .............. 111
Power windows............................................153
Rear door sunshade ................................356
K
Keyless entrySmart access system with push-button start ................................................................... 113
Wireless remote control......................... 100 Keys
Battery-saving function.............................. 114
Electronic key .................................................98
Engine switch .................................................174
If the electronic key does not operate properly ....................................................... 442
If you lose your keys ...................................441
Key number plate .........................................98
Keyless entry .........................................102, 113
Mechanical key ..............................................98
Replacing the battery ................................ 410
Warning buzzer ............................................ 114
Wireless remote control .........................100
Knee airbags .................................................... 29
L
Lane change assist function .................... 238
Lane Tracing Assist (LTA) Operation ......................................................238
Warning messages.................................. 250
Language (multi-information display) ... 87
LATCH anchors ............................................. 53
LDH (Lexus Dynamic Handling system) ..........................................................................305
Lever Auxiliary catch lever .................................. 381
Hood lock release lever .......................... 381
Internal trunk release lever......................... 111
Shift lever ......................................................... 178
Turn signal lever .......................................... 185
Wiper lever .................................................... 196
Lexus climate concierge ............................321
Lexus Dynamic Handling system (LDH) ..........................................................................305
Lexus Enform Safety Connect.................. 58
Lexus Safety System + 2.0 AHB (Automatic High Beam) ............. 193
Dynamic radar cruise control with full-speed range ......................................254
LTA (Lane Tracing Assist) ....................238
PCS (Pre-Collision System) ................ 227
RSA (Road Sign Assist)........................... 251

518Alphabetical Index
Initializing .......................................................399
Installing tire pressure warning valves and transmitters ......................................398
Registering ID codes .............................. 400
Warning light .................................................431
Tires Chains .............................................................. 310
Checking ....................................................... 393
If you have a flat tire ..................................438
Inflation pressure........................................406
Information .................................................... 467
Replacing ....................................................... 402
Rotating tires ................................................ 394
Run-flat tires .................................... 395, 438
Size.................................................................... 462
Snow tires ......................................................309
Tire inflation pressu re display function
.........................................................................395
Tire pressure warning system .............395
Warning light .................................................431
Top tether strap............................................... 55
Total load capacity ...................................... 456
Towing Dinghy towing ............................................... 173
Emergency towing ..................................... 421
Towing eyelet .............................................. 423
Trailer towing ................................................. 173
TRAC (Traction Control) ........................ 304
Traction Control (TRAC) ........................ 304
Trailer towing .................................................. 173
Transmission Automatic transmission ............................178
Driving mode select switch .................. 299
M mode ........................................................... 183
Paddle shift switches ....................... 182, 183
Snow mode ....................................................182
Trip meters ..................................................76, 81
Trunk .................................................................. 106 Hands Free Power Trunk Lid .............. 109
Internal trunk release lever ........................ 111
Power trunk opener and closer .......... 108 Smart access system with push-button
start ................................................................. 109
Trunk closer switch ...................................... 110
Trunk easy closer............................................ 111
Trunk features ..............................................349
Trunk grip ......................................................... 110
Trunk lid light................................................... 110
Trunk light ......................................................... 110
Trunk opener main switch........................ 112
Trunk opener switch ................................. 108
Wireless remote control ......................... 109
Trunk lid light .................................................... 110
Trunk light .......................................................... 110
Turn signal lights Replacing light bulbs ................................. 416
Turn signal lever .......................................... 185
U
USB charging ports.................................... 352
V
Vanity lights.................................................... 356
Vanity mirrors ............................................... 356
Variable Gear Ratio Steering (VGRS)304
VDIM (Vehicle Dynamics Integrated Man-agement)......................................................305
Vehicle data recording ....................................7
Vehicle Dynamics Integrated Manage- ment (VDIM)..............................................305
Vehicle identification number ................ 456
Vehicle Stability Control (VSC) ........... 304
Ventilators (seat ventilators)................... 336
VGRS (Variable Gear Ratio Steering)304
VSC (Vehicle Stability Control) ........... 304
W
Warning buzzers ABS ................................................................... 429
Airbags............................................................428
Approach warning................................... 260

519Alphabetical Index
Brake hold..................................................... 433
Brake system ............................................... 427
Charging system ....................................... 428
Downshifting .......................................183, 184
Electric power steering ..........................430
Engine ............................................................. 428
Hands off steering wheel warning (LTA)......................................................................... 249
High coolant temperature .................... 427
Inappropriate pedal operation ........... 429
Low engine oil pressure......................... 428
LTA (Lane Tracing Assist)238, 241, 431
Open door.......................................... 103, 105
Open window ...............................................154
PKSA (Parking Support Alert) ............. 271
Pop Up Hood ............................................. 429
Pre-collision braking...................... 215, 229
RCD (Rear Camera Detection) ........ 432
Seat belt ............................................... 430, 431
Warning lights................................................427 ABS .................................................................. 429
Brake hold operated indicator ........... 433
Brake system ............................................... 427
Charging system ....................................... 428
Electric power steering ..........................430
High coolant temperature .................... 427
Inappropriate pedal operation warning light ................................................................ 429
Low engine oil pressure......................... 428
Low fuel level ...............................................430
LTA indicator .................................................431
Malfunction indicator lamp................... 428
Parking brake indicator .......................... 433
Pop Up Hood ............................................. 429
Pre-collision system ................................. 432
RCD OFF indicator ................................. 432
Seat belt reminder light ............... 430, 431
Slip indicator ................................................ 432
SRS.................................................................... 428
Tire pressure ..................................................431
Warning messages ..................................... 436
Warning reflector storag e belt.............. 350Washer
Adding............................................................ 390
Preparing and checking before winter......................................................................... 309
Switch................................................................ 196
Washing and waxing.................................. 368
Weight Cargo capacity ............................................. 172
Load limits ....................................................... 172
Weight............................................................ 456
Wheels Replacing wheels .......................................402
Size .................................................................... 462
Window lock switch .................................... 155
Windows Power windows ........................................... 153
Rear window defogger........................... 324
Washer ............................................................ 196
Windshield wiper de-icer ........................ 329
Windshield wipers Position............................................................. 198
Rain-sensing windshield wipers .......... 196
Winter driving tips....................................... 309
Wireless remote control Battery-Saving Function............................ 114
Locking/Unlocking ...................................100
Replacing the battery ................................ 410
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