2019 LEXUS LS500H heater

4397-2. Steps to take in an emergency
LS500h_OM_(U)_1809
7
When trouble arises
Take your vehicle to the nearest Lexus
dealer or authorized tire dealer as
soon as possible if any tire goes flat.
The vehicle can be driven for a maximum
of 100 miles (160 km) at a speed below 50
mph (80 km/h) after the tire pressure
warning light comes on. ( P.428)
A run-flat tire has a mark on the
side wall.
■In some conditions (s uch as at high tem-
peratures)
You cannot continue driving for up to 160
miles (100 km).
■For the detailed information on run-flat
tires
See the tire warranty booklet.
NOTICE
■If “High Power Consumption Partial
Limit On AC/Heater Operation” is
displayed frequently
There is a possible malfunction relating
to the charging system or the 12-volt bat-
tery may be deteriorating. Have the vehi-
cle inspected by your Lexus dealer.
■If “Have Traction Battery Inspected”
is displayed
This message indicates that the hybrid
battery (traction battery) may require
inspection or replacement. Have the
vehicle inspected by your Lexus dealer
immediately.
Do not continue driving the vehicle, as
the hybrid system may become not able
to be started again.
If you have a flat tire
Your vehicle is not equipped with a
spare tire, but instead you can con-
tinue driving the vehicle with
run-flat tires even if any tire goes
flat.
In this case, slow down and drive
with extra caution.
Run-flat tires

4738-1. Specifications
LS500h_OM_(U)_1809
8
Vehicle specifications
■Traction AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B and C, and they
represent the tire’s ability to stop on
wet pavement as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and
concrete.
A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include
cornering (turning) traction.
■Temperature A, B, C
The temperature grades are A (the
highest), B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudd
en tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Fede ral Motor Vehicle
Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning: The temperature grades of a tire
assume that it is properly inflated and not
overloaded.
Excessive speed, unde rinflation, or exces-
sive loading, either separately or in combi-
nation, can cause heat buildup and
possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pressureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of hybrid transmis-
sion, power steering, power brakes, power win-
dows, power seats, radio and heater, to the extent
that these items are available as factory-installed
equipment (whether installed or not)

4918-2. Customization
LS500h_OM_(U)_1809
8
Vehicle specifications
■Seat heater/seat ventilators ( P.337)
*1: If equipped
*2: Vehicles without power rear seat
■Heated steering wheel* ( P.337)
*:If equipped
FunctionDefault settingCustomized set-
ting
Driver’s seat temperature
preference in automatic
mode
Standard-2 (cooler) to 2 (warmer)O——O
Passenger’s seat tempera-
ture preference in automatic
mode
Standard-2 (cooler) to 2 (warmer)O——O
Left-hand rear seat tempera-
ture preference in automatic
mode
*1Standard-2 (cooler) to 2 (warmer)O——O
Right-hand rear seat tem-
perature preference in auto-
matic mode
*1Standard-2 (cooler) to 2 (warmer)O——O
Power switch linked auto-
matic activation of the
left-hand rear seat
heater/ventilator
*2
OffOnO——O
Power switch linked auto-
matic activation of the
right-hand rear seat
heater/ventilator
*2
OffOnO——O
FunctionDefault settingCustomized set- ting
Steering wheel heating pref-
erence in automatic modeStandard-2 (low) to 2 (high)O——O
ABCD
ABCD

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

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

5131-1. What to do if... (Troubleshooting)
LS500h_OM_(U)_1809513Alphabetical Index
Fuel gauge ............................................... 81, 85
Information ....................................................468
Refueling .......................................................... 197
Type..................................................................459
Warning light ............................................... 427
Fuel consumption Average fuel economy .............................. 92
Current fuel consumption........................ 92
Fuel filler door If the fuel filler door cannot be opened......................................................................... 442
Refueling .......................................................... 197
Fuel gauge .................................................. 81, 85
Fuses .................................................................... 411
G
Garage door opener ................................. 360
Gauges ........................................................ 81, 85
Gear Position................................................... 93
G-force............................................................... 93
Glove box ....................................................... 346
Glove box light ............................................. 347
H
Hands Free Power Trunk Lid .................... 119
Head restraints ............................................... 147
Headlights Adaptive Front-lighting System (AFS).......................................................................... 189
Automatic High Beam system............. 190
Light switch .....................................................187
Replacing light bulbs.................................. 414
Head-up display.............................................. 96 Driving information display area........... 96
Driving support system display area .. 99
HUD (Head-up display) switch............ 98
Hybrid System Indicator ......................... 100
Navigation system-linked display ........ 96
Pop-up display............................................... 99
Settings .............................................................. 98
Heated steering wheel .............................. 337 Heaters
Front automatic air conditioning system.......................................................................... 323
Heated steering wheel ............................ 337
Outside rear view mirrors..................... 324
Rear automatic air conditioning system
..........................................................................334
Seat heaters .................................................. 337
Height control Electronically modulated air suspension..........................................................................299
High-voltage components ......................... 66
Hill-start assist control ............................... 302
Hood Open................................................................382
Pop Up Hood.................................................38
Hooks Coat hooks ...................................................354
Retaining hooks (floor mat) ..................... 22
Horn ................................................................... 150
HUD (Head-up display) switch ................ 98
Hybrid battery (traction battery) Location ............................................................. 66
Specification ................................................ 460
Warning message ........................................ 69
Hybrid battery (traction battery) air vents ............................................................................. 69
Hybrid system .................................................. 63 Emergency shut off system...................... 69
Energy monitor/consumption screen100
EV drive mode..............................................174
High voltage components ....................... 66
Hybrid system precautions...................... 66
If the hybrid system will not start ....... 440
Overheating .................................................. 451
Power (ignition) switch ............................ 170
Regenerative braking ................................. 64
Starting the hybrid system ...................... 170
Vehicle proximity noti fication system.65
Hybrid System Indicator........... 82, 87, 100
Hybrid transmission...................................... 176 M mode ............................................................. 181

5171-1. What to do if... (Troubleshooting)
LS500h_OM_(U)_1809517Alphabetical Index
Pop Up Hood................................................... 38
Power control unit.......................................... 66
Power control unit coolant Capacity ...........................................................461
Checking ....................................................... 387
Preparing and checking before winter.........................................................................309
Power easy access system ........................ 142
Power outlets ................................................ 355
Power rear seat ............................................. 138
Power steering (Elect ric power steering
system).......................................................... 302 Warning light ............................................... 427
Power switch ...................................................170 Auto power off function ........................... 173
Changing the power switch modes .. 172
Power switch (engine switch) If your vehicle has to be stopped in an
emergency ..................................................416
Power trunk opener and closer ............... 118
Power windows Door lock linked window operation. 155
Jam protection function............................154
Operation........................................................154
Window lock switch ................................. 156
Pre-Collision System (PCS) Function ................................................ 212, 223
PCS OFF switch .............................. 215, 225
Warning light ...............................................430
R
Radar cruise control (dynamic radar cruise control with full-speed range)..245, 255
Radiator ...........................................................388
RCD (Rear camera detection) .............. 263 Warning message..................................... 276
RCD (Rear Camera Detection) Function .......................................................... 275
RCTA Function ............................................................ 271
Warning message......................................272
RCTA (Rear Cross Traffic Alert) ......... 263 RCTA function ..............................................272
Rear automatic air conditioning system
.......................................................................... 334
Rear Cross Traffic Alert (RCTA) ........... 271
Rear door sunshades ................................. 357
Rear Multi Operation Panel .................... 318
Rear seat position memory .......................146
Rear seats ........................................................ 138 Adjustment ..................................................... 138
Head restraints..............................................147
Rear seat position memory.................... 146
Relaxation system ......................................... 141
Seat heaters .................................................. 337
Seat ventilators ............................................ 337
Rear side marker lights Light switch .................................................... 187
Replacing light bulbs ..................................414
Rear sunshades ............................................358
Rear turn signal lights Replacing light bulbs ..................................414
Turn signal lever .......................................... 182
Rear view mirror Inside rear view mirror ............................... 151
Outside rear view mirrors...................... 152
Rear window defogger ............................. 324
Refueling Capacity ........................................................ 459
Fuel types ...................................................... 459
If the fuel filler do or cannot be opened
.......................................................................... 442
Opening the fuel tank cap ......................197
Regenerative braking ................................... 64
Remote Touch ................................................314
Replacing Electronic key battery ............................. 409
Fuses.................................................................... 411
Light bulbs .......................................................414
Tires ................................................................... 401
Resetting the message indicating mainte- nance is required ...................................... 375
Rev indicator .................................................... 87
Rev peak............................................................. 87

518Alphabetical Index
LS500h_OM_(U)_1809
Road Sign Assist .......................................... 255
RSA (Road Sign Assist) ............................ 255
Run-flat tires........................................394, 439
S
Seat belt buckle lights . .................................341
Seat belt reminder ligh t.................. 427, 428
Seat belts............................................................ 24 Automatic Locking Retractor ................ 26
Child restraint system installation ......... 46
Cleaning and maintaining the seat belt........................................................................... 371
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 ....... 427, 428
Seat belt extender ........................................ 25
SRS warning light ...................................... 426
Seat heaters ................................................... 337
Seat position memory........................ 142, 146
Seat ventilators ............................................. 337
Seating capacity............................................ 168
Seats Adjustment.............................................131, 138
Adjustment precautions ............................ 131
Child seats/child restraint system installa-tion .................................................................... 45
Cleaning........................................................... 371
Driving position memory......................... 142
Front seat refresh system.........................136
Head restraints ............................................. 147
Power easy access system ..................... 142
Properly sitting in the seat .........................23
Rear seat relaxation system......................141
Seat heaters .................................................. 337
Seat position memory .....................142, 146
Seat ventilators............................................ 337
Secondary Collision Brake ..................... 302 Sensor
Automatic headlight system .................. 187
Automatic High Beam system ............. 190
Inside rear view mirror ............................... 151
Intuitive parking assist ..............................265
LTA (Lane Tracing Assist) .................... 233
Parking Support Brake function (rear-crossing vehicles) ..................... 290
Parking Support Brake function (static objects) ....................................................... 285
Radar sensor .........................199, 206, 259
Rain-sensing windshield wipers .......... 193
RCTA............................................................... 272
Service plug ...................................................... 66
Service reminder message ..................... 375
Shift lever Hybrid transmission....................................176
Shift lever light ................................................341
Shopping bag hooks ..................................350
Side airbags ...................................................... 29
Side marker lights Light switch .................................................... 187
Replacing light bulbs ..................................414
Side mirrors Adjustment ..................................................... 152
BSM (Blind Sport Monitor)................. 258
Folding.............................................................. 153
Linked mirror functi on when reversing
........................................................................... 152
Mirror position memory ...........................142
RCTA function .............................................. 271
Side turn signal lights Replacing light bulbs ..................................414
Turn signal lever .......................................... 182
Side windows ..................................................154
Smart access system with push-button startAntenna location ..........................................123
Entry functions ................................................ 112
Starting the hybrid system ...................... 170
Snow mode ...................................................... 179
Snow tires ....................................................... 309