power steering LEXUS LS500 2019 Owner's Manual

4277-2. Steps to take in an emergency
LS500_OM_(U)_1810 7
When trouble arises  In some situations, the master warning light and warning buzzer may not oper-
ate as specified. In this case, follow the instructions displayed in the warning
message.
 If a warning light comes on or flashes at the same time that a warning message is
displayed, take corrective actio n according to the warning light. (  P.415)*
: A buzzer sounds the first time a message is shown on the multi-information display.
■
Warning messages
The warning messages explained below
may differ from the actual messages
according to operation conditions and vehi-
cle specifications. ■
Warning buzzer
In some cases, the bu zzer may not be heard
due to being in a noisy location or audio
sound. ■
If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level is low. Check the level
of the engine oil, and add if necessary.
This message may appear if the vehicle is
stopped on a slope. Move the vehicle to a
level surface and check to see if the mes-
sage disappears.
■
If “Engine Stoppe d Steering Power
Low” is displayed
This message is displa yed if the engine is
stopped while driving.
When steering wheel operations are
heavier than usual, grip the steering wheel
firmly and operate it using more force than
usual. ■
If “Auto Power Off to Conserve Bat-
tery” is displayed
Power was turned off due to the automatic
power off function. Next time when starting
the engine, increase the engine speed
slightly and maintain that level for approxi-
mately 5 minutes to recharge the battery. ■
If “Headlight System Malfunction Visit
Your Dealer” is displayed
The following systems may be malfunction-
ing. Have the vehicle inspected by your
Lexus dealer immediately. ●
The LED headlight system ●
AFS (Adaptive Front-lighting System) ●
The automatic headlight leveling system ●
AHB (Automatic High Beam)
■
If “Radar Cruise Control Unavailable
See Owner's Manual” is displayed
The dynamic radar cruise control with
full-speed range system is suspended tem-
porarily or until the problem shown in the
message is re solved. (causes and coping
methods:  P.196, 202)
■
If “Radar Cruise Control Unavailable” is
displayed
The dynamic radar cruise control with
full-speed range system cannot be used
temporarily. Use the system when it Comes on Does not sound Indicates a condition, such as malfunction of electri-
cal components, their cond ition, or indicates the
need for maintenance
Flashes Does not sound Indicates a situation, such as when an operation has
been performed incorrectly, or indicates how to
perform an operation correctlyWarning buzzer *
Warning

460 8-1. Specifications
LS500_OM_(U)_1810 ■
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 prop erly 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 term Meaning
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 pressure The maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation pressure Cold tire inflation pressure recommended by a
manufacturer
Accessory weight The combined weight (in excess of those standard
items which may be replaced) of automatic trans-
mission, 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)

478 8-2. Customization
LS500_OM_(U)_1810 ■
Seat heater/seat ventilators *1
(  P.326)
*1
: If equipped *2
: Vehicles without power rear seat
■
Heated steering wheel *
(  P.326)*
:If equipped Function Default setting Customized 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 *1
Standard -2 (cooler) to 2
(warmer) O — — O
Right-hand rear seat tem-
perature preference in auto-
matic mode *1
Standard -2 (cooler) to 2
(warmer) O — — O
Engine switch linked auto-
matic activation of the
left-hand rear seat
heater/ventilator *2
Off On O — — O
Engine switch linked auto-
matic activation of the
right-hand rear seat
heater/ventilator *2
Off On O — — O
Function Default setting Customized set-
ting
Steering wheel heating pref-
erence in automatic mode Standard -2 (low) to 2
(high) O — — O A B C D
A B C D

4818-3. Initialization
LS500_OM_(U)_1810 8
Vehicle specifications 8-3.Initialization
*
:If equippedItems to initialize The following items must be initialized for normal system operation after such
cases as the battery being reconnected, or maintenance being performed on
the vehicle:
List of items to initialize Item When to initialize Reference
PKSB (Parking Support
Brake) *
• After reconnecting or changing the
battery P.274
Message indicating
maintenance is
required • After maintenance is performed P.364
Oil maintenance • After maintenance is performed P.377
Tire pressure warning
system • When the tire inflation pressure is
changed, such as when changing trav-
eling speed or load weight.
• When the tire inflation pressure is
changed, such as when the tire size is
changed.
• When rotating the tires.
• After performing the transmitter ID
code registration procedure. P.388
Lexus parking assist
monitor *
• Battery has been reinstalled.
• The steering wheel has been moved
while the battery was being reinstalled.
• Battery power is low. Refer to the “NAVI-
GATION AND MUL-
TIMEDIA SYSTEM
OWNER’S MAN-
UAL”.
Panoramic view moni-
tor *
• Battery has been reinstalled.
• The steering wheel has been moved
while the battery was being reinstalled.
• Battery power is low. Refer to the “NAVI-
GATION AND MUL-
TIMEDIA SYSTEM
OWNER’S MAN-
UAL”.

4951-1. What to do if... (Troubleshooting)
LS500_OM_(U)_1810 495What to do if... (Troubleshooting)
In this case, the engine can be started in a
temporary way. ( 
P.434 )
 Is the battery discharged?
(  P.435)
 It is locked automatically to prevent
theft of the vehicle. (  P.164)
 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.144 )
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY mode for a period of
time. (  P.166)
 The seat belt reminder light is flash-
ing Are the driver and the front passenger
wearing the seat belts? ( 
P.418 )
 The parking brake indicator is on Is the parking brake released? ( 
P.174 )
Depending on the situation, other
types of warning buzzer may also sound. (  P.415, 425)
 Did anyone inside the vehicle open
a door during setting the alarm? The sensor detects it and the alarm sounds.
( 
P.65 )
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.425 )
 When a warning light turns on or a
warning message is displayed, refer
to P.415, 425.The steering wheel cannot be
turned after the engine is
stopped
The windows do not open or
close by operating the power
window switches
The engine switch is turned off
automatically
A warning buzzer sounds during
driving An alarm is activated and the
horn sounds
A warning buzzer sounds when
leaving the vehicle
A warning light turns on or a
warning message is displayed
When a problem has occurred
If you have a flat tire

498 Alphabetical Index
LS500_OM_(U)_1810 Brightness control
Instrument panel light control ........75, 79
BSM (Blind Spot Monitor)....................... 250
Buzzer
Hands off steering wheel alert (LTA)
............................................................. 236, 236 C
Card key ............................................................ 96
Care
Aluminum wheels ..................................... 358
Exterior .......................................................... 358
Interior ...............................................................361
Seat belts..........................................................361
Cargo capacity............................................... 162
Cargo net ....................................................... 340
Center Display ............................................. 306
Chains ............................................................... 301
Child restraint system
Fixed with a LATCH system .................. 53
Fixed with a seat belt................................... 49
Front passenger occupa nt classification
system ............................................................. 40
Points to remember .................................... 45
Riding with children ..................................... 45
Types of child restraint system installation
method ........................................................... 46
Using an anchor bracket .......................... 55
Child safety
Airbag precautions...................................... 34
Battery precautions ....................... 381, 439
Child restraint system................................. 46
Heated steering wheel and seat heater
precautions................................................ 327
How your child should wear the seat belt
............................................................................ 25
Moon roof precautions ............................146
Panoramic moon roof precautions ... 150
Power window lock switch..................... 144
Power window precautions ................... 143
Rear door child-protectors ................... 103 Removed electronic key battery precau-
tions .............................................................. 400
Seat belt extender precautions.............. 25
Seat belt precautions .................................. 45
Trunk precautions....................................... 104
Child-protectors........................................... 103
Cleaning
Aluminum wheels ..................................... 358
Exterior........................................................... 358
Interior .............................................................. 361
Radar sensor .......................................192, 198
Seat belts ......................................................... 361
Clock ................................................ 73, 76, 345
Clock light ........................................................331
Coat hooks..................................................... 344
Coin holder .................................................... 337
Condenser ..................................................... 378
Console box .................................................. 338
Consumption screen ...................................... 91
Cooling system..............................................377
Engine overheating.................................. 440
Cornering lights .............................................. 181
Cruise control
Dynamic radar cruise control with
full-speed range .......................... 237, 247
Cup holders ................................................... 337
Current fuel consumption .......................... 82
Curtain shield airbags .................................. 29
Customizable features .............................. 466
D
Daytime running light system ................... 179
Defogger
Outside rear view mirrors.......................314
Rear window ..................................................314
Windshield ......................................................314
Differential
Front differential oi l............. ...................... 450
Rear differential oil. .................... ........... ...... 451
Dimension ...................................................... 446
Dinghy towing.................................................163

4991-1. What to do if... (Troubleshooting)
LS500_OM_(U)_1810 499Alphabetical Index
Display
Center Display............................................306
Dynamic radar cruise control with
full-speed range ...................................... 237
Head-up display ........................................... 87
Intuitive parking assist.............................. 257
LTA (Lane Tracing Assist)...................... 231
Multi-information display ..........................80
Parking Support Brake function (rear
pedestrians) ..............................................286
RCD (Rear Camera Detection) ........ 267
RCTA .............................................................. 263
Warning message..................................... 425
Distance until next engine oil
change ......................................................74, 79
Do-it-yourself maintenance .................... 365
Door courtesy lights .....................................331
Door lock
Doors................................................................ 100
Smart access system with push-button
start ..................................................................... 111
Wireless remote control........................... 98
Doors
Automatic door lock ing and unlocking
system ........................................................... 104
Door closer ................................................... 103
Door glasses .................................................. 142
Door lock........................................................ 100
Open door warning bu zzer ........ 101, 103
Outside rear view mirrors ..................... 140
Rear door child-protectors ................... 103
Drive distance .................................................. 82
Drive info 1/Drive info 2 .............................. 82
Driver’s seat position memory
Driving position memory........................ 130
Memory recall function ............................133
Power easy access system .................... 130
Drive-start control ....................................... 155
Driving
Break-in tips .................................................. 155
Correct driving posture .............................23
Driving mode select switch ..................289 Procedures .................................................... 154
Winter drive tips ........................................ 300
Driving information disp lay ........................ 82
Driving position memory........................... 130
Memory recall function............................ 133
Power easy access system .................... 130
Driving range ................................................... 82
Driving support system information display
............................................................................. 85
DRS (Dynamic Rear Steering) .............. 295
Dynamic radar cruise control with
full-speed range ............................. 237, 247
Warning message .....................................245
Dynamic Rear Steering (DRS) .............. 295
E
ECB (Electronically Controlled Brake Sys-
tem) ................................................................ 294
Eco Driving Indicator............................. 83, 91
Eco Driving Indicator Light ........................ 83
EDR (Event data recorder) ............................7
Elapsed time ..................................................... 82
Electric Power Steering (EPS) .............. 295
Warning light ................................................ 418
Electronic key .................................................. 96
Battery-saving function.............................. 112
If the electronic key does not operate
properly .......................................................433
Replacing the battery .............................. 399
Electronic roof sunshade
Jam protection function ........................... 149
Operation ........................................................147
Electronically Controlled Brake System
(ECB) ............................................................ 294
Electronically modulated air suspension
............................................................................291
Emergency flashers .................................... 406
Emergency, in case of
If a warning buzzer sounds.................... 415
If a warning light turns on........................ 415
If a warning message is displayed .....425
If the battery is discharged ....................435

500 Alphabetical Index
LS500_OM_(U)_1810 If the electronic key does not operate
properly....................................................... 433
If the engine will not start .......................430
If the fuel filler door cannot be opened
......................................................................... 432
If the vehicle is trapped in rising water
......................................................................... 407
If you have a flat tire .................................. 429
If you lose your keys................................. 432
If you think something is wrong ........... 413
If your vehicle becomes stuck............. 443
If your vehicle has to be stopped in an
emergency ................................................406
If your vehicle needs to be towed .....409
If your vehicle overheats ........................440
Engine
ACCESSORY mode ...............................166
Compartment ............................................. 373
Engine compartment cover ................. 374
Engine switch.................................................164
Fuel pump shut off system ...................... 414
Hood.................................................................. 371
How to start the engine............................164
Identification number ............................... 447
If the engine will not start .......................430
If your vehicle has to be stopped in an
emergency ................................................406
Ignition switch (engine switch) .............164
Overheating.................................................440
Tachometer ............................................. 73, 76
Engine compartment cover .................... 374
Engine coolant
Capacity ......................................................... 449
Checking ........................................................377
Preparing and checking before winter
........................................................................ 300
Engine coolant temperature gauge 73, 76
Engine immobilizer system ........................ 63
Engine oil
Capacity .........................................................448
Checking ....................................................... 375 Preparing and checking before winter
......................................................................... 300
Warning light ................................................ 416
Engine oil maintenance data ...................377
Engine switch ..................................................164
Auto power off function........................... 166
Changing the engine switch modes . 166
If your vehicle has to be stopped in an
emergency ................................................ 406
EPS (Electric Power Steering) .............. 295
Warning light ................................................ 418
Event data recorder (E DR) ............................7 F
FCTA (Front Cross Traffic Alert) ......... 222
First-aid kit storage belt ..............................341
Flat tire
Tire pressure warning system ............ 384
Floor mats ...........................................................22
Fluid
Automatic transmission ......................... 450
Brake ................................................................. 451
Washer ........................................................... 379
Footwell light ...................................................331
Front automatic air conditioning system
............................................................................313
Front Cross Traffic Alert (FCTA) ......... 222
Front passenger occupant classification
system .............................................................. 40
Front seats
Adjustment ....................................................... 119
Cleaning .......................................................... 361
Correct driving posture ............................ 23
Driving position memory ........................ 130
Head restraints............................................. 135
Memory recall function............................ 133
Power easy access system .................... 130
Refresh system ..............................................124
Seat heaters ..................................................326
Seat position memory .............................. 130
Seat ventilators ............................................326

5011-1. What to do if... (Troubleshooting)
LS500_OM_(U)_1810 501Alphabetical Index
Front side marker light
Light switch ..................................................... 179
Replacing light bulbs................................404
Front turn signal lights
Replacing light bulbs................................404
Turn signal lever ........................................... 173
Fuel
Capacity ......................................................... 447
Fuel gauge ............................................... 73, 76
Fuel pump shut off system ...................... 414
Information ....................................................455
Refueling ......................................................... 189
Type.................................................................. 447
Warning light ................................................ 418
Fuel consumption
Average fuel economy .............................. 82
Current fuel consumption........................ 82
Fuel filler door
If the fuel filler door cannot be opened
......................................................................... 432
Refueling ......................................................... 189
Fuel gauge ..................................................73, 76
Fuel pump shut off system..........................414
Fuses .................................................................. 401
G
Garage door opener ................................. 350
Gauges ........................................................73, 76
Gear Position................................................... 84
G-force............................................................... 84
Glove box ....................................................... 336
Glove box light ............................................. 337
H
Hands Free Power Trunk Lid ...................107
Head restraints ...............................................135
Headlights
Adaptive Front-lighting System (AFS)
............................................................................ 181
Automatic High Beam system..............182
Light switch ..................................................... 179 Replacing light bulbs ............................... 404
Head-up display.............................................. 87
Driving information display area ........... 87
Driving support system display area ..90
Eco Driving Indicator....................................91
HUD (Head-up display) switch ............89
Navigation system-linked display ........ 87
Pop-up display ...............................................90
Settings...............................................................89
Heated steering wheel .............................. 326
Heaters
Front automatic air conditioning system
........................................................................... 313
Heated steering wheel ............................326
Outside rear view mirrors.......................314
Rear automatic air conditioning system
.......................................................................... 323
Seat heaters ..................................................326
Height control
Electronically modulated air suspension
.......................................................................... 292
Hill-start assist control ............................... 295
Hood
Open..................................................................371
Pop Up Hood.................................................38
Hooks
Coat hooks ................................................... 344
Retaining hooks (floor mat) ..................... 22
Horn ................................................................... 138
HUD (Head-up display) switch ................ 89
I
I/M test ............................................................ 368
Identification
Engine.............................................................. 447
Vehicle ............................................................446
Ignition switch (engine switch).................164
Auto power off function........................... 166
Changing the engine switch modes . 166
If your vehicle has to be stopped in an
emergency ................................................ 406
Indicators ........................................................... 70

504 Alphabetical Index
LS500_OM_(U)_1810 N
Navigation system-linked display.... 84, 87
Noise from under vehicle ...............................6 O
“ODO TRIP” switch ...............................74, 79
Odometer ..................................................74, 79
Odometer and trip meter display
Display items ........................................... 74, 79
“ODO TRIP” switch ............................ 74, 79
Pop-up display.......................................75, 79
Oil
Engine oil .......................................................448
Front differential oil ...................................450
Rear differential oil ......................................451
Opener
Fuel filler door............................................... 189
Hood.................................................................. 371
Trunk ................................................................. 106
Outer foot lights
Location............................................................331
Outside door handle lights........................331
Outside rear view mirrors
Adjustment..................................................... 140
BSM (Blind Sport Monitor) .................250
Folding ................................................................141
Linked mirror functi on when reversing
.......................................................................... 140
Mirror position memory.......................... 130
Outside rear view mirror defoggers
...........................................................................314
RCTA function ............................................ 263
Outside temperature.............................73, 76
Overheating .................................................. 440
P
Paddle shift switches ............................171, 172
Panic mode ....................................................... 98
Panoramic moon roof
Jam protection function............................149 Operation ........................................................147
Parking assist sensors (intuitive parking
assist) ............................................................. 257
Parking brake
Operation ........................................................174
Parking brake engaged warning buzzer
............................................................................176
Warning light ............................................... 422
Warning message .......................................176
Parking lights
Light switch .....................................................179
Replacing light bulbs ............................... 404
Parking Support Brake function (for
rear-crossing vehicles) .......................... 282
Function ..........................................................282
Parking Support Brake function (rear
pedestrians) .....................................270, 286
Function ......................................................... 286
Parking Support Brake function
(rear-crossing vehicles)......................... 270
Parking Support Brake function (static
objects) .............................................. 270, 276
Function .......................................................... 276
PCS (Pre-Collision System)
Function ............................................... 204, 215
PCS OFF switch .............................. 207, 217
Warning light .................................................421
Personal lights.................................................331
PKSA (Parking Support Alert) .............. 255
PKSB (Parking Support Brake)............. 270
Warning message ..................................... 274
Pop Up Hood................................................... 38
Power easy access system ....................... 130
Power outlets ................................................ 345
Power rear seat ..............................................126
Power steering (Elect ric power steering
system) .......................................................... 295
Warning light ................................................ 418
Power trunk opener and closer ............. 106
Power windows
Door lock linked window operation ..143
Jam protection function ............................142