traction control LEXUS LS500H 2019 User Guide

4377-2. Steps to take in an emergency
LS500h_OM_(U)_1809
7
When trouble arises
■If “Traction Battery Needs to be Pro-
tected Shift into P to Restart” is dis-
played
This message is displayed when the hybrid
battery (traction battery) charge has
become extremely low because the vehicle
has been left with the N shift position
selected for a certain amount of time.
When operating the vehicle, shift to P and
restart the hybrid system.
■If “Shift Is in N Release Accelerator
Before Shifting” is displayed
The accelerator pedal has been depressed
when the shift position is in N.
Release the accelerator pedal and shift the
shift position to D or R.
■If “Depress Brake When Vehicle Is
Stopped Hybrid Syst em May Overheat”
is displayed
The message may be displayed when the
accelerator pedal is depressed to hold the
vehicle while the vehicle is stopped on an
incline, etc. The hybrid system may over-
heat. Release the accelerator pedal and
depress the brake pedal.
■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 hybrid system, operate the hybrid sys-
tem for approximately 5 minutes to
recharge the 12-volt 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 resolved. (causes and coping methods:
P.204, 210)
■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
becomes available again.
■If “Front Camera Unav ailable” or “Front
Camera Unavailable See Owner's
Manual” is displayed
The following systems may be suspended
until the problem shown in the message is
resolved. ( P.204, 210, 430)
●PCS (Pre-Collision system)
●LTA (Lane Tracing Assist)
●Dynamic radar cruise control with
full-speed range
●RSA (Road Sign Assist) (if equipped)
●AHB (Automatic High Beam)
■If “Maintenance Required Soon” is dis-
played
Indicates that all maintenance according to
the driven distance on the maintenance
schedule
* should be performed soon.
Comes on approximately 4500 miles
(7200 km) after the message has been
reset. If necessary, perform maintenance.
Please reset the message after the mainte-
nance is performed. ( P.375)
*: Refer to the separate “Scheduled Main-
tenance” or “Owner’s Manual Supple-
ment” for the main tenance interval
applicable to your vehicle.
■If “Maintenance Required Visit Your
Dealer” is displayed
Indicates that all mainte nance is required to
correspond to the driven distance on the
maintenance schedule
*.
Comes on approximately 5000 miles
(8000 km) after the message has been
reset. (The indicator will not work properly
unless the message ha s been reset.) Per-
form the necessary maintenance. Please
reset the message after the maintenance is
performed. ( P.375)

4387-2. Steps to take in an emergency
LS500h_OM_(U)_1809
*: Refer to the separate “Scheduled Main-
tenance” or “Owner’s Manual Supple-
ment” for the maintenance interval
applicable to your vehicle.
■If “Oil Maintenance Required Soon” is
displayed
Indicates that the engine oil should be
scheduled to be changed.
Check the engine oil and change it if neces-
sary. After changing the engine oil, make
sure to reset the message. ( P.387)
■If “Oil Maintenance Required” is dis-
played
Indicates that the engine oil should be
changed.
Check and change the en gine oil, and oil fil-
ter by your Lexus deal er. After changing the
engine oil, make sure to reset the message.
(  P.387)
■If “Shift System Malfunction Driving
Unavailable” is displayed
There is a malfunction in the shift control
system. Have the vehicle inspected by your
Lexus dealer immediately.
■If a message that in dicates the need for
the shift lever oper ation is displayed
To prevent the shift lever from being oper-
ated incorrectly or the vehicle from moving
unexpectedly, a message that requires shift-
ing the shift position may be displayed on
the multi-information display. In that case,
follow the instruction of the message and
shift the shift position.
■If a message that in dicates the need for
visiting your Lexus dealer is displayed
The system or part shown on the
multi-information display is malfunctioning.
Have the vehicle inspected by your Lexus
dealer immediately.
■If a message that in dicates the need for
referring to Owner’s Manual is dis-
played
●If any of the following messages are
shown on the multi-information display,
follow the instructions.
• “Engine Coolant Temp High” ( P.450)
•“Battery Low” ( P.445) • “Transmission Fluid Temp High” (
P.177)
●If any of the following messages are
shown on the multi-info rmation display, it
may indicate a malfunction. Have the
vehicle inspected by your Lexus dealer
immediately.
• “Access System with Elec. Key Malfunc- tion”
• “Shift System Malfunction”
• “P Switch Malfunction”
• “Shift System Unavailable”
• “Hybrid System Malfunction”
•“Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
●If any of the following messages are
shown on the multi-info rmation display, it
may indicate a malfun ction. Immediately
stop the vehicle and contact your Lexus
dealer.
• “Braking Power Low”
• “Charging System Malfunction”
• “Oil Pressure Low”
●If any of the following messages are
shown on the multi-information display,
the vehicle may have run out of fuel. Stop
the vehicle in a safe place and, if the fuel
level is low, refuel the vehicle. ( P.66)
• “Hybrid System Stopped”
• “Engine Stopped”
●If “Maintenance Required for Traction
Battery Cooling Parts” is shown, the fil-
ters may be clogged, the air intake vents
may be blocked, or there may be a gap in
the duct. Therefore, perform the follow-
ing correction procedure.
• If the air intake vent s and filters of the
hybrid battery (traction battery) are dirty,
perform the procedure on P.372 to clean
them.
• If the warning message is shown when
the air intake vents and filters of the
hybrid battery (traction battery) are not
dirty, have the vehicle inspected by your
Lexus dealer.

4728-1. Specifications
LS500h_OM_(U)_1809
letter)
■Tire dimensionsSection width
Tire height
Wheel diameter
Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer This information has been prepared in
accordance with regulations issued by
the National Highway Traffic Safety
Administration of the U.S. Department
of Transportation.
It provides the purchasers and/or pro-
spective purchasers of Lexus vehicles
with information on uniform tire quality
grading.
Your Lexus dealer will help answer any
questions you may have as you read this
information.
■DOT quality grades
All passenger vehicle tires must con-
form to Federal Safety Requirements in
addition to these grades. Quality
grades can be found where applicable
on the tire sidewall between tread
shoulder and maximum section width.
For example: Treadwear 200 Traction AA
Temperature A
■Treadwear
The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.
For example, a tire graded 150 would wear
one and a half (1 - 1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use.
Performance may differ significantly from
the norm due to variatio ns in driving habits,
service practices and differences in road
characteristics and climate.
Tire section names
A
B
C
A
B
C
D
E
F
G
H
I
J
K
Uniform Tire Quality Grading

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)

4808-2. Customization
LS500h_OM_(U)_1809
tomized. Contact your Lexus dealer for further details.
Settings that can be changed using the Remote Touch
Settings that can be changed using the meter control switches
Settings that can be changed using the Rear Multi Operation Panel (if
equipped)
Settings that can be changed by your Lexus dealer
Definition of symbols: O = Available, — = Not available
■Seat belts ( P.24)
*1: If equipped
*2: Vehicles with pre-collision se at belts with comfort function
■Vehicle proximity notification system ( P.65)
■Gauges, meters and multi-information display ( P.76, 81, 85, 90)
FunctionDefault settingCustomized set-
ting
Easy Access Buckle*1OnOff———O
Retraction of front seat belts
when vehicle speed reaches
approximately 12 mph (20
km/h)
*2
OnOff———O
Retraction of front seat belt
when corresponding front
door is opened or seat belt is
released
*2
OnOff———O
FunctionDefault settingCustomized set-ting
The volume of vehicle prox-
imity notification system
sound
Level1
Level2
———OLevel3
Function*1Default settingCustomized set-ting
LanguageEnglishFrenchOO——Spanish
A
B
C
D
ABCD
ABCD
ABCD

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

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

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

520Alphabetical Index
LS500h_OM_(U)_1809
Tail lights Light switch .....................................................187
Replacing light bulbs.................................. 414
Theft deterrent system Alarm ...................................................................73
Immobilizer system........................................ 71
Tire inflation pressure Maintenance data...................................... 464
Tire inflation pressu re display function
......................................................................... 394
Warning light ............................................... 428
Tire information ............................................ 470 Glossary......................................................... 473
Size...................................................................... 471
Tire identification number ....................... 471
Uniform Tire Quality Grading............ 472
Tire pressure display .................................. 394
Tire pressure warning system Function .......................................................... 394
Initializing .......................................................398
Installing tire pressure warning valves and transmitters ...................................... 397
Registering ID codes ...............................399
Warning light ............................................... 428
Tires Chains .............................................................. 310
Checking ....................................................... 392
If you have a flat tire .................................. 439
Inflation pressure........................................405
Information .................................................... 470
Replacing ........................................................ 401
Rotating tires ................................................ 394
Run-flat tires .....................................394, 439
Size.................................................................... 464
Snow tires ......................................................309
Tire inflation pressu re display function
......................................................................... 394
Tire pressure warning system ............. 394
Warning light ............................................... 428
Top tether strap............................................... 55
Total load capacity ...................................... 458 Towing
Dinghy towing .............................................. 169
Emergency towing..................................... 419
Towing eyelet............................................... 422
Trailer towing ................................................ 168
TRAC (Traction Control) ........................ 302
Traction battery (hybrid battery) Hybrid battery (traction battery) air vents............................................................................. 69
Location ............................................................. 66
Specification ................................................ 460
Warning message ........................................ 69
Traction Control (TRAC) ........................ 302
Traction motor (electric motor) ............... 63
Trailer towing ................................................. 168
Transmission Driving mode select switch .................. 297
Hybrid transmission....................................176
M mode ............................................................. 181
Paddle shift switches ........................ 180, 181
Snow mode.....................................................179
Trip meters ............................................... 83, 88
Trunk .................................................................... 116 Hands Free Power Trunk Lid................. 119
Internal trunk release lever....................... 121
Power trunk opener and closer ............ 118
Smart access system with push-button start ................................................................... 119
Trunk closer switch .................................... 120
Trunk easy closer........................................ 120
Trunk features ............................................. 350
Trunk grip ....................................................... 120
Trunk lid light................................................. 120
Trunk light ....................................................... 120
Trunk opener main switch....................... 122
Trunk opener switch ................................... 118
Wireless remote control ........................... 119
Trunk lid light ...................................................120
Trunk light .........................................................120
Turn signal lights Replacing light bulbs ..................................414
Turn signal lever .......................................... 182

5211-1. What to do if... (Troubleshooting)
LS500h_OM_(U)_1809521Alphabetical Index
U
USB charging ports.................................... 353
V
Vanity lights.................................................... 357
Vanity mirrors ............................................... 357
Variable Gear Ratio Steering (VGRS)302
VDIM (Vehicle Dynami cs Integrated Man-
agement)...................................................... 303
Vehicle data recordings ..................................7
Vehicle Dynamics Integrated Manage- ment (VDIM).............................................. 303
Vehicle identification number ................ 458
Vehicle Stability Control (VSC) ........... 302
Ventilators (seat ventilators)................... 337
VGRS (Variable Gear Ratio Steering)302
VSC (Vehicle Stabilit y Control) ........... 302
W
Warning buzzer
Hands off steering wheel alert (LTA)244
LTA (Lane-Tracing Assist) ................... 236
Warning buzzers ABS .................................................................. 426
Airbags ........................................................... 426
Approach warning......................................251
Brake hold....................................................... 431
Brake Override System ......................... 427
Brake system ............................................... 424
Charging system ....................................... 425
Downshifting ................................................... 181
Drive-Start Control .................................. 427
Electric power steering .......................... 427
Engine ............................................................. 426
High coolant temperature .................... 424
Hybrid system ............................................. 426
Intuitive parking assist.................. 270, 429
Low engine oil pressure......................... 425
LTA (Lane Tracing Assi st)........ 233, 429
Open door...............................................113, 115 Open window .............................................. 155
PKSA (Parking Support Alert) ........... 264
PKSB (Parking Support Brake) ........ 430
Pop Up Hood.............................................. 426
Pre-collision braking ...................... 212, 224
RCD (Rear Camera Detection) ........ 429
RCTA (Rear Cross Tra
ffic Alert) ...... 429
Seat belt .............................................. 427, 428
Warning label .................................................. 66
Warning lights............................................... 424 ABS ................................................................... 426
Brake hold operated indicator .............431
Brake Override System ......................... 427
Brake system................................................ 424
Charging system........................................425
Drive-Start Control................................... 427
Electric power steering........................... 427
High coolant temperature..................... 424
Hybrid system overheat warning light..........................................................................425
Intuitive parking assist OFF indicator429
Low engine oil pressure.........................425
Low fuel level ............................................... 427
Low traction battery warning light ....425
LTA indicator ............................................... 429
Malfunction indicator lamp ................... 426
Master warning light...................................431
Parking brake indicator ............................431
PKSB OFF indicator ............................... 430
Pop Up Hood.............................................. 426
Pre-collision system................................. 430
RCD OFF indicator.................................. 429
RCTA OFF indicator ............................... 429
Seat belt reminder light............... 427, 428
Slip indicator ................................................ 430
SRS .................................................................... 426
Tire pressure ................................................428
Warning messages ..................................... 434
Warning reflector storage belt................351
Washer Adding............................................................ 389