traction control LEXUS LS500H 2018 User Guide

4417-2. Steps to take in an emergency
LS500h_OM_OM50F42U_(U) 7
When trouble arises ■
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.390)■
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.453)
•“Battery Low” ( → P.447)
• “Transmission Fluid Temp High” ( → P.175)
●
If any of the following messages are
shown on the multi-information 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 “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.374 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.
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.

474 8-1. Specifications
LS500h_OM_OM50F42U_(U) letter) ■
Tire dimensions
Section 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 performa nce 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

4758-1. Specifications
LS500h_OM_OM50F42U_(U) 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 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 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)

482 8-2. Customization
LS500h_OM_OM50F42U_(U) 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 dealerDefinition 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.60)
■
Gauges, meters and multi-information display ( → P.72, 77, 81, 86)Function Default setting Customized set-
ting
Easy Access Buckle *1
On Off — — — O
Retraction of front seat belts
when vehicle speed reaches
approximately 12 mph (20
km/h) *2
On Off — — — O
Function Default setting Customized set-
ting
The volume of vehicle prox-
imity notification system
sound Level1 Level2
— — — O
Level3
Function *1
Default setting Customized set-
ting
Language English French
O O — —
Spanish
Units *2
miles (MPG) km (km/L)
O O — —km (L/100 km)
miles (MPG
Imperial)A
B
C
D
A B C D
A B C D
A B C D

5111-1. What to do if... (Troubleshooting)
LS500h_OM_OM50F42U_(U) 511Alphabetical Index
Alphabetical Index A
A/C
Air conditioning filter ...................................411
Front automatic air conditioning system
......................................................................... 323
Micro dust and pollen filter................... 329
Rear air conditioning system ............... 333
ABS (Anti-lock Brake System).............. 302
Warning light ............................................... 429
Adaptive Front-lighting System (AFS) .187
Adaptive Variable Suspension System303
AFS (Adaptive Front-lighting System) .187
Air conditioning filter .................................... 411
Air conditioning system
Air conditioning filter ...................................411
Front automatic air conditioning system
......................................................................... 323
Micro dust and pollen filter................... 329
Rear air conditioning system ............... 333
Airbags
Airbag operating conditions..................... 31
Airbag precautions for your child ........ 34
Correct driving posture .............................23
Curtain shield airbag operating condi-
tions .................................................................... 31
Curtain shield airbag precautions ....... 34
Front passenger occupa nt classification
system ............................................................. 40
General airbag precautions ................... 34
Locations of airbags.................................... 29
Modification and disposal of airbags ..37
Side airbag operating conditions ........... 31
Side airbag precautions ............................ 34
Side and curtain shield airbags operating
conditions........................................................ 31
Side and curtain shield airbags precau-
tions .................................................................. 34
SRS airbags ..................................................... 29
SRS warning light ...................................... 428
Alarm
Alarm .................................................................. 68 Warning buzzer ......................................... 427
Anchor brackets ..................................... 46, 55
Antennas (smart acc ess system with
push-button start)........................................ 119
Anti-lock Brake System (ABS).............. 302
Warning light ............................................... 429
Approach warning...................................... 256
Armrest............................................................ 352
Assist grips ..................................................... 352
Audio system-linked display ...................... 90
Automatic headlight leveling system ... 186
Automatic High Beam ............................... 188
Automatic light control system............... 185
Auxiliary boxes .................................. 347, 349
Average fuel economy................................. 88
Average vehicle speed ................................ 88
B
Back-up lights
Replacing light bulbs ..................................417
Battery (12-volt battery)
Battery checking ........................................393
If the 12-volt battery is discharged .... 447
Preparing and checking before winter
......................................................................... 309
Warning light ...............................................428
Battery (traction battery) .............................. 61
Blind Spot Monitor (BSM)....................... 260
Brake
Brake hold ...................................................... 183
Fluid.................................................................. 465
Parking brake ................................................. 181
Regenerative braking .................................59
Warning light ............................................... 427
Brake assist .................................................... 302
Break-in tips.....................................................159
Brightness control
Instrument panel light control........ 79, 85
BSM (Blind Spot Monitor)....................... 260

5131-1. What to do if... (Troubleshooting)
LS500h_OM_OM50F42U_(U) 513Alphabetical Index
Multi-information display .......................... 86
Parking Support Brake function (rear
pedestrians) .............................................. 295
RCD (Rear Camera Detection) .........277
RCTA .............................................................. 273
Warning message..................................... 437
Distance until next engine oil change
..................................................................... 79, 84
Do-it-yourself maintenance .................... 379
Door courtesy lights ................................... 340
Door lock
Doors................................................................ 108
Smart access system with push-button
start ................................................................... 119
Wireless remote control......................... 106
Doors
Automatic door lock ing and unlocking
system ..............................................................112
Door closer ....................................................... 111
Door glasses ................................................... 151
Door lock........................................................ 108
Open door warning bu zzer .......... 109, 111
Outside rear view mirrors ......................149
Rear door child-protectors ....................... 111
Drive distance .................................................. 88
Drive info 1/Drive info 2 .............................. 88
Driver’s seat position memory
Driving position memory.........................139
Memory recall function ............................ 142
Power easy access system .....................139
Drive-start control ........................................159
Driving
Break-in tips .................................................. 159
Correct driving posture .............................23
Driving mode select switch ..................298
Hybrid vehicle driving tips .................... 307
Procedures .................................................... 158
Winter drive tips.........................................309
Driving information display ........................ 87
Driving position memory............................139
Memory recall function ............................ 142
Power easy access system .....................139 Driving range ................................................... 88
Driving support system information display
............................................................................. 90
DRS (Dynamic Rear Steering) .............. 303
Dynamic radar cruise control with
full-speed range ............................. 247, 250
Warning message .....................................259
Dynamic Rear Steering (DRS) .............. 303 E
ECB (Electronically Controlled Brake Sys-
tem) ................................................................ 302
EDR (Event data recorder) ............................7
Elapsed time ..................................................... 88
Electric motor (traction motor) ................ 58
Electric Power Steering (EPS) .............. 303
Warning light .............................................. 430
Electronic key ................................................ 104
Battery-saving function............................ 120
If the electronic key does not operate
properly .......................................................445
Replacing the battery .................................413
Electronically Controlled Brake System
(ECB) ............................................................ 302
Electronically modulated air suspension
.......................................................................... 299
Emergency flashers .................................... 420
Emergency, in case of
If a warning buzzer sounds................... 427
If a warning light turns on....................... 427
If a warning message is displayed ..... 437
If the 12-volt battery is discharged .... 447
If the electronic key does not operate
properly .......................................................445
If the fuel filler do or cannot be opened
..........................................................................445
If the hybrid system will not start ........ 443
If you have a flat tire .................................. 442
If you lose your keys ................................. 444
If you think something is wrong.......... 426
If your vehicle becomes stuck ............. 457
If your vehicle has to be stopped in an

5151-1. What to do if... (Troubleshooting)
LS500h_OM_OM50F42U_(U) 515Alphabetical Index
Fuel consumption
Average fuel economy ..............................88
Current fuel consumption........................88
Fuel filler door
If the fuel filler door cannot be opened
......................................................................... 445
Refueling ..........................................................194
Fuel gauge ...................................................77, 81
Fuses ...................................................................414 G
Garage door opener .................................358
Gauges .........................................................77, 81
Gear Position................................................... 89
G-force............................................................... 89
Glove box ....................................................... 344
Glove box light ............................................. 345
H
Hands Free Power Trunk Lid .................... 115
Head restraints ...............................................144
Headlights
Adaptive Front-lighting System (AFS)
...........................................................................187
Automatic High Beam system............. 188
Light switch .................................................... 185
Replacing light bulbs.................................. 417
Head-up display.............................................. 92
Driving information display area........... 92
Driving support system display area .. 95
HUD (Head-up display) switch............ 94
Hybrid System Indicator ........................... 96
Navigation system-linked display ........ 92
Pop-up display............................................... 95
Settings .............................................................. 94
Heated steering wheel .............................. 336
Heaters
Front air conditioning system .............. 323
Heated steering wheel............................ 336
Outside rear view mirrors .................... 324
Rear air conditioning system ............... 333 Seat heaters ..................................................336
Height control
Electronically modulated air suspension
......................................................................... 300
High-voltage components ........................... 61
Hill-start assist control ............................... 303
Hood
Open............................................................... 385
Pop Up Hood.................................................38
Hooks
Coat hooks ...................................................352
Retaining hooks (floor mat) ..................... 22
Horn .................................................................... 147
HUD (Head-up display) switch ................ 94
Hybrid battery (traction battery)
Location ...............................................................61
Specification ................................................. 462
Warning message ........................................ 64
Hybrid battery (traction battery) air vents
............................................................................. 64
Hybrid system .................................................. 58
Emergency shut off system...................... 64
Energy monitor/consumption screen96
EV drive mode.............................................. 172
High voltage components .........................61
Hybrid system precautions........................61
If the hybrid system will not start ........ 443
Overheating .................................................454
Power (ignition) switch ............................ 168
Regenerative braking .................................59
Starting the hybrid system ...................... 168
Vehicle proximity noti fication system.60
Hybrid System Indicator............. 78, 83, 96
Hybrid transmission...................................... 174
M mode ............................................................179
Paddle shift switches ....................... 178, 179
Snow mode..................................................... 177
Hybrid vehicle driving tips ....................... 307
I
I/M test ............................................................ 382

522 Alphabetical Index
LS500h_OM_OM50F42U_(U) Tail lights
Light switch .................................................... 185
Replacing light bulbs.................................. 417
Theft deterrent system
Alarm .................................................................. 68
Immobilizer system...................................... 66
Tire inflation pressure
Maintenance data...................................... 466
Tire inflation pressu re display function
......................................................................... 397
Warning light .................................................431
Tire information .............................................472
Glossary......................................................... 475
Size.................................................................... 473
Tire identification number ..................... 473
Uniform Tire Quality Grading............ 474
Tire pressure display .................................. 397
Tire pressure warning system
Function .......................................................... 397
Initializing ........................................................ 401
Installing tire pressure warning valves
and transmitters ....................................... 401
Registering ID codes ...............................403
Warning light .................................................431
Tires
Chains .............................................................. 310
Checking .......................................................395
If you have a flat tire .................................. 442
Inflation pressure....................................... 408
Information .................................................... 472
Replacing .......................................................405
Rotating tires ................................................ 397
Run-flat tires ..................................... 397, 442
Size.................................................................... 466
Snow tires ......................................................309
Tire inflation pressu re display function
......................................................................... 397
Tire pressure warning system ............. 397
Warning light .................................................431
Top tether strap............................................... 55
Total load capacity ...................................... 460 Towing
Dinghy towing ...............................................167
Emergency towing.................................... 422
Towing eyelet...............................................425
Trailer towing ................................................ 166
TRAC (Traction Control) ........................ 303
Traction battery (hybrid battery)
Hybrid battery (traction battery) air vents
............................................................................. 64
Location ...............................................................61
Specification ................................................. 462
Warning message ........................................ 64
Traction Control (TRAC) ........................ 303
Traction motor (electric motor) ............... 58
Trailer towing ..................................................166
Transmission
Driving mode select switch ................. 298
Hybrid transmission....................................174
M mode ............................................................179
Paddle shift switches ....................... 178, 179
Snow mode..................................................... 177
Trip meters ................................................ 79, 84
Trunk .................................................................... 112
Hands Free Power Trunk Lid................. 115
Internal trunk release lever....................... 117
Power trunk opener and closer ............ 114
Smart access system with push-button
start ................................................................... 115
Trunk closer switch ...................................... 115
Trunk easy closer.......................................... 116
Trunk features ............................................. 348
Trunk grip ......................................................... 116
Trunk lid light................................................... 116
Trunk light ......................................................... 116
Trunk opener main switch........................ 118
Trunk opener switch ................................... 114
Wireless remote control ........................... 115
Trunk lid light .................................................... 116
Trunk light .......................................................... 116
Turn signal lights
Replacing light bulbs ..................................417
Turn signal lever .......................................... 180