2019 LEXUS LS500H Owners Manual

505
LS500h_OM_(U)_1809
Index
.What to do if... (Troubleshooting)........................................................ 506
Alphabetical Index.................... 509

506What to do if... (Troubleshooting)
LS500h_OM_(U)_1809
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.442)
 If you lose your electronic keys, the
risk of vehicle theft increases signifi-
cantly. Contact your Lexus dealer
immediately. ( P.442)
 Is the electronic key battery weak or
depleted? ( P.409)
 Is the power switch in ON mode?
When locking the doors, turn the power
switch off. ( 
P.172)
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.125)
 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.115)
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.120)
 Did you press the power switch
while firmly depressing the brake
pedal? ( P.170)
 Is the electronic key anywhere
detectable inside the vehicle?
( P.124)
 Is the steering wheel unlocked?
( P.171)
 Is the electronic key battery weak or
depleted?
In this case, the hy brid system can be
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 hybrid system does not start

5071-1. What to do if... (Troubleshooting)
LS500h_OM_(U)_1809507What to do if... (Troubleshooting)
started in a temporary way. (
P.444)
 Is the 12-volt battery discharged?
( P.445)
 It is locked automatically to prevent
theft of the vehicle. ( P.171)
 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.156)
The auto power off function will be
operated if the vehicle is left in
ACCESSORY mode for a period of
time. ( P.173)
 The seat belt reminder light is flash-
ing
Are the driver and the front passenger
wearing the seat belts? ( 
P.427)
The parking brake indicator is on
Is the parking brake released? ( P.183)
Depending on the situation, other
types of warning buzzer may also
sound. (P.424, 434) 
Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
(
P.73)
Do one of the following to deactivate
or stop the alarms:
 Unlock the doors.
 Turn the power switch to ACCES-
SORY or ON mode, or start the
hybrid system. (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.434)
When a warning light turns on or a
warning message is displayed, refer
to P.424, 434.
 Slow down the vehicle, drive with
The steering wheel cannot be
turned after the hybrid system is
stopped
The windows do not open or
close by operating the power
window switches
The power 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

508What to do if... (Troubleshooting)
LS500h_OM_(U)_1809
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.439)
 Try the procedure for when the vehi-
cle becomes stuck in mud, dirt, or
snow. ( P.454)
The vehicle becomes stuck

5091-1. What to do if... (Troubleshooting)
LS500h_OM_(U)_1809509Alphabetical Index
Alphabetical Index
A
A/C Air conditioning filter .............................. 408
Front automatic air conditioning system......................................................................... 323
Micro dust and pollen filter................... 329
Rear automatic air conditioning system ......................................................................... 334
ABS (Anti-lock Brake System).............. 302 Warning light ............................................... 426
Adaptive Front-lighting System (AFS) 189
Adaptive Variable Suspension System302
AFS (Adaptive Front-lighting System) 189
Air conditioning filter .................................408
Air conditioning system Air conditioning filter .............................. 408
Front automatic air conditioning system......................................................................... 323
Micro dust and pollen filter................... 329
Rear automatic air conditioning system ......................................................................... 334
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 ..37
Side airbag operating conditions ..........32
Side airbag precautions ............................ 34
Side and curtain shield airbags operating conditions.......................................................32
Side and curtain shield airbags precau- tions .................................................................. 34
SRS airbags ..................................................... 29
SRS warning light ...................................... 426 Alarm ....................................................................73
Warning buzzer ......................................... 424
Anchor brackets ..................................... 46, 55
Antennas (smart acc ess system with
push-button start).......................................123
Anti-lock Brake System (ABS).............. 302 Warning light ............................................... 426
Approach warning........................................251
Armrest............................................................ 354
Assist grips ..................................................... 354
Audio system-linked display ...................... 93
Automatic headlight leveling system ... 188
Automatic High Beam ............................... 190
Automatic light control system................187
Auxiliary boxes ................................... 349, 351
Average fuel economy................................. 92
Average vehicle speed ................................ 92
B
Back-up lights Replacing light bulbs ..................................414
Battery (12-volt battery) Battery checking ....................................... 390
If the 12-volt battery is discharged ....445
Preparing and checking before winter......................................................................... 309
Warning light ...............................................425
Battery (traction batter y) ............................ 66
Blind Spot Monitor (BSM)....................... 258
Brake Brake hold ...................................................... 185
Fluid...................................................... 388, 463
Parking brake ............................................... 183
Regenerative braking ................................. 64
Warning light ............................................... 424
Brake assist .................................................... 302
Break-in tips...................................................... 161
Brightness control Instrument panel light control....... 83, 89
BSM (Blind Spot Monitor)....................... 258

510Alphabetical Index
LS500h_OM_(U)_1809
Buzzer Hands off steering wheel alert (LTA)............................................................. 244, 244
C
Card key .......................................................... 108
Care Aluminum wheels ......................................368
Exterior ...........................................................368
Interior ............................................................... 371
Seat belts.......................................................... 371
Cargo capacity.............................................. 168
Cargo net ....................................................... 350
Center Display ...............................................316
Chains ............................................................... 310
Child restraint system Fixed with a LATCH system .................. 53
Fixed with a seat belt................................... 49
Front passenger occupant 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 12-volt battery precautions ........ 391, 449
Airbag precautions...................................... 34
Child restraint system................................. 46
Heated steering wheel and seat heater precautions................................................ 337
How your child should wear the seat belt ............................................................................ 25
Moon roof precautions ............................ 157
Power window lock switch.................... 156
Power window precautions .................. 155
Rear door child-protectors ..................... 115
Removed electronic key battery precau- tions ................................................................ 410
Seat belt extender precautions ............. 25
Seat belt precautions .................................. 45
Trunk precautions ........................................ 116 Child-protectors............................................. 115
Cleaning
Aluminum wheels ..................................... 368
Exterior........................................................... 368
Interior ...............................................................371
Radar sensor ................................... 200, 206
Seat belts ..........................................................371
Clock ................................................ 81, 85, 355
Clock light ........................................................341
Coat hooks..................................................... 354
Coin holder .................................................... 347
Condenser .....................................................388
Console box .................................................. 348
Cooling system............................................. 387 Engine overheating.................................. 450
Hybrid system overheating ................... 451
Cornering lights ............................................ 189
Cruise control Dynamic radar cruise control with full-speed range ......................... 245, 255
Cup holders ................................................... 347
Current fuel consumption .......................... 92
Curtain shield airbags .................................. 29
Customizable features .............................. 479
D
Daytime running light system ...................187
Defogger Outside rear view mirrors..................... 324
Rear window ................................................ 324
Windshield .................................................... 324
Differential Front differential oil............. .......................463
Rear differential oil......... ..................... .......463
Dimension ...................................................... 458
Dinghy towing.................................................169
Display Center Display ............................................. 316
Dynamic radar cruise control with full-speed range ......................................245
Energy monitor ............................................ 100
Head-up display............................................ 96

5111-1. What to do if... (Troubleshooting)
LS500h_OM_(U)_1809511Alphabetical Index
Intuitive parking assist.............................. 265
LTA (Lane Tracing Assist).................... 239
Multi-information display .......................... 90
Parking Support Brake function (rear pedestrians) .............................................. 294
RCD (Rear Camera Detection) ........ 275
RCTA ................................................................ 271
Warning message..................................... 434
Distance until next engine oil change .................................................... 83, 88
Do-it-yourself maintenance .................... 376
Door courtesy lights .....................................341
Door lock Doors...................................................................112
Smart access system with push-button start .................................................................. 123
Wireless remote control........................... 110
Doors Automatic door lock ing and unlocking
system ............................................................. 116
Door closer ..................................................... 115
Door glasses ..................................................154
Door lock...........................................................112
Open door warning buzzer ...........113, 115
Outside rear view mirrors ......................152
Rear door child-protectors ..................... 115
Drive distance .................................................. 92
Drive info 1/Drive info 2 .............................. 92
Driver’s seat position memory Driving position memory......................... 142
Memory recall function ............................145
Power easy access system ..................... 142
Drive-start control ......................................... 161
Driving Break-in tips .................................................... 161
Correct driving posture .............................23
Driving mode select switch .................. 297
Hybrid vehicle driving tips .................... 307
Procedures .................................................... 160
Winter drive tips.........................................309
Driving information display .......................... 91 Driving position memory............................ 142
Memory recall function............................ 145
Power easy access system .....................142
Driving range ................................................... 92
Driving support system information display ............................................................................. 93
DRS (Dynamic Rear Steering) .............. 302
Dynamic radar cruise control with full-speed range .............................245, 255Warning message .....................................253
Dynamic Rear Steering (DRS) .............. 302
E
ECB (Electronically Controlled Brake Sys-
tem) ................................................................ 302
EDR (Event data recorder) ........................... 8
Elapsed time ..................................................... 92
Electric motor (traction motor) ................ 63
Electric Power Steering (EPS) .............. 302 Warning light ............................................... 427
Electronic key ................................................ 108 Battery-saving function.............................124
If the electronic key does not operate properly .......................................................443
Replacing the battery .............................. 409
Electronically Controlled Brake System (ECB) ............................................................ 302
Electronically modulated air suspension .......................................................................... 298
Emergency flashers ......................................416
Emergency, in case of If a warning buzzer sounds................... 424
If a warning light turns on....................... 424
If a warning message is displayed ..... 434
If the 12-volt battery is discharged ....445
If the electronic key does not operate properly .......................................................443
If the fuel filler do or cannot be opened
.......................................................................... 442
If the hybrid system will not start ....... 440
If the vehicle is trapped in rising water ............................................................................417

512Alphabetical Index
LS500h_OM_(U)_1809
If you have a flat tire .................................. 439
If you lose your keys................................. 442
If you think something is wrong ......... 423
If your vehicle becomes stuck............. 454
If your vehicle has to be stopped in an
emergency ..................................................416
If your vehicle needs to be towed .......419
If your vehicle overheats ........................450
Energy monitor .................................... 100, 101
Engine ACCESSORY mode ............................... 172
Compartment .............................................384
Engine compartment cover ................ 385
Engine switch.................................................170
Hood................................................................ 382
How to start the hybrid system ............170
Identification number ...............................459
If the hybrid system will not start ........440
If your vehicle has to be stopped in an
emergency ..................................................416
Ignition switch (power switch) ..............170
Overheating.................................................450
Power switch .................................................170
Tachometer ............................................. 81, 85
Engine compartment cover ....................385
Engine coolant Capacity ...........................................................461
Checking ....................................................... 387
Preparing and checking before winter.........................................................................309
Engine coolant temperature gauge 81, 85
Engine oil Capacity .........................................................460
Checking ...................................................... 385
Preparing and checking before winter.........................................................................309
Warning light ............................................... 425
Engine oil maintenance data .................. 387
Engine switch (power switch) ..................170 If your vehicle has to be stopped in an
emergency ..................................................416 EPS (Electric Power Steering) .............. 302
Warning light ............................................... 427
EV drive mode................................................ 174
EV indicator ...................................................... 64
Event data recorder (E DR) ........................... 8
F
FCTA (Front Cross Traffic Alert) ......... 230
First-aid kit storage belt ..............................351
Flat tire
Tire pressure warning system .............394
Floor mats ...........................................................22
Fluid Brake ................................................................463
Hybrid transmission.................................. 462
Washer .......................................................... 389
Footwell light ...................................................341
Front automatic air conditioning system .......................................................................... 323
Front Cross Traffic Alert (FCTA) ......... 230
Front passenger occupant classification system .............................................................. 40
Front seats Adjustment ....................................................... 131
Cleaning ...........................................................371
Correct driving posture ............................ 23
Driving position memory .........................142
Head restraints..............................................147
Memory recall function............................ 145
Power easy access system .....................142
Refresh system ............................................. 136
Seat heaters .................................................. 337
Seat position memory ...............................142
Seat ventilators ............................................ 337
Front side marker light Light switch .................................................... 187
Replacing light bulbs ..................................414
Front turn signal lights Replacing light bulbs ..................................414
Turn signal lever .......................................... 182
Fuel Capacity ........................................................ 459