
184 4-3. Operating the lights and wipers
LS500_OM_(U)_1810 ■
Switching to the low beams
Pull the lever to its original position. The AHB indicator will turn off.
Push the lever away from you to activate
the Automatic High Beam system again.
■
Switching to the high beams
Press the Automatic High Beam
switch. The AHB indicator will turn off and the
high beam indicator will turn on.
Press the switch to activate the Automatic
High Beam system again. Operate the lever operates the
wipers or washer as follows. When
is selected, the wipers will operate
automatically when the sensor detects
falling rain. The system automatically
adjusts wiper timing in accordance
with rain volume and vehicle speed.Turning the high beams on/off
manually Windshield wipers and
washer Operating the lever can switch
between automatic operation and
manual operation, or can use the
washer. NOTICE■
When the windshield is dry
Do not use the wipers, as they may dam-
age the windshield.
Operating the wiper lever

1914-5. Using the driving support systems
LS500_OM_(U)_1810 4
Driving 4-5.Using the driving support systems
*
:If equipped
■
PCS (Pre-Collision System) (vehi-
cles with Lexus Safety System + A)
P.204 ■
FCTA (Front Cross Traffic Alert)
P.222 ■
LTA (Lane Tracing Assist)
P.225 ■
AHB (Automatic High Beam)
P.182 ■
RSA (Road Sign Assist) **
:If equipped
P.247 ■
Dynamic radar cruise control with
full-speed range
P.237 Four types of sensors, located behind
the front grille, front bumper, rear
bumper and windshield, detect infor-
mation necessary to operate the drive
assist systems.
Front
Front radar sensor
Front side radar sensors
Front camera
Rear Rear side radar sensors (
P.250 )Lexus Safety System + A *
The Lexus Safety System + A con-
sists of the following drive assist sys-
tems and contributes to a safe and
comfortable driving experience:
Drive assist system WARNING■
Lexus Safety System + A
The Lexus Safety System + A is designed
to operate under the assumption that the
driver will drive safely , and is designed to
help reduce the impact to the occupants
and the vehicle in the case of a collision
or assist the driver in normal driving con-
ditions.
As there is a limit to the degree of recog-
nition accuracy and control performance
that this system can provide, do not
overly rely on this system. The driver is
always responsible for paying attention
to the vehicle’s surroundings and driving
safely.
Sensors
A
B
C

198 4-5. Using the driving support systems
LS500_OM_(U)_1810 *
:If equipped
■
PCS (Pre-Collision System) (vehi-
cles with Lexus Safety System +
2.0)
P.215 ■
LTA (Lane Tracing Assist)
P.225 ■
AHB (Automatic High Beam)
P.182 ■
RSA (Road Sign Assist) *
P.247 *
:If equipped ■
Dynamic radar cruise control with
full-speed range
P.237 Two types of sensors, located behind
the front grille and windshield, detect
information necessary to operate the
drive assist systems.
Radar sensor
Front cameraLexus Safety System + 2.0 *
The Lexus Safety System + 2.0 con-
sists of the following drive assist sys-
tems and contributes to a safe and
comfortable driving experience:
Driving assist system WARNING■
Lexus Safety System + 2.0
The Lexus Safety System + 2.0 is
designed to operate under the assump-
tion that the driver will drive safely, and is
designed to help reduce the impact to
the occupants and the vehicle in the case
of a collision or assist the driver in normal
driving conditions.
As there is a limit to the degree of recog-
nition accuracy and control performance
that this system can provide, do not
overly rely on this system. The driver is
always responsible for paying attention
to the vehicle’s surroundings and driving
safely.
Sensors
WARNING
■
To avoid malfunction of the radar sen-
sor
Observe the following precautions.
Otherwise, the radar sensor may not
operate properly, possibly leading to an
accident resulting in death or serious
injury. A
B

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

428 7-2. Steps to take in an emergency
LS500_OM_(U)_1810 becomes available again. ■
If “Front Camera Unavailable” 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.196, 202, 421)●
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.364)*
: Refer to the separa te “Scheduled Main-
tenance” or “Owner’s Manual Supple-
ment” for the maintenance interval
applicable to your vehicle.■
If “Maintenance Required Visit Your
Dealer” is displayed
Indicates that all maintenance 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.364)*
: Refer to the separa te “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 an d change it if neces-
sary. After changing th e engine oil, make
sure to reset the message. ( P.377)■
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 dealer. After changing the
engine oil, make sure to reset the message.
( P.377) ■
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 indicates the need for
the shift lever operation is displayed
To prevent the shift le ver 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 indicates 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 indicates 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.440)
•“Battery Low” ( P.435)
• “Transmission Fluid Temp High” ( P.168)
●
If any of the following messages are
shown on the multi-info rmation display, it
may indicate a malf unction. Have the
vehicle inspected by your Lexus dealer

4971-1. What to do if... (Troubleshooting)
LS500_OM_(U)_1810 497Alphabetical Index
Alphabetical Index A
A/C
Air conditioning filter ...............................398
Front automatic air conditioning system
...........................................................................313
Micro dust and pollen filter.....................319
Rear automatic air conditioning system
......................................................................... 323
ABS (Anti-lock Brake System).............. 294
Warning light ................................................. 417
Active stabilizer suspension system .... 295
Adaptive Front-lighting System (AFS) .. 181
Adaptive Variable Suspension System295
AFS (Adaptive Front-lighting System) .. 181
Air conditioning filter ................................. 398
Air conditioning system
Air conditioning filter ...............................398
Front automatic air conditioning system
...........................................................................313
Micro dust and pollen filter.....................319
Rear automatic air conditioning system
......................................................................... 323
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 occupa nt 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........................................ 416
Alarm ................................................................... 65
Warning buzzer .......................................... 415
Anchor brackets ..................................... 46, 55
Antennas (smart acc ess system with
push-button start)..........................................111
Anti-lock Brake System (ABS).............. 294
Warning light .................................................417
Approach warning...................................... 243
Armrest............................................................ 344
Assist grips ..................................................... 344
Audio system-linked display ...................... 85
Automatic headlight leveling system ... 180
Automatic High Beam ................................182
Automatic light control system................ 179
Automatic transmission .............................. 167
M mode ............................................................ 172
Paddle shift switches ...... .......... ..........171, 172
Snow mode...................................................... 171
Auxiliary boxes ................................... 339, 341
Average fuel economy................................. 82
Average vehicle speed ................................ 82
B
Back-up lights
Replacing light bulbs ............................... 404
Battery
Battery checking ....................................... 380
If the battery is discharged ....................435
Preparing and checking before winter
......................................................................... 300
Warning light ................................................ 416
Blind Spot Monitor (BSM)....................... 250
Boost gauge...................................................... 83
Brake
Brake hold ....................................................... 177
Fluid........................................................ 379, 451
Parking brake ................................................174
Warning light ................................................ 415
Brake assist .................................................... 294
Break-in tips.................................................... 155

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

502 Alphabetical Index
LS500_OM_(U)_1810 Initialization
Items to initialize .......................................... 481
Maintenance .................................... 364, 377
Power windows............................................ 142
Tire pressure warning system ............ 388
Inside door handle lights ............................331
Inside rear view mirror ................................139
Instrument panel light control ........... 75, 79
Intercooler...................................................... 378
Intercooler coolant
Capacity ......................................................... 449
Checking ........................................................377
Interior lights....................................................331
Front interior light ........................................331
Rear interior light .........................................331
Intuitive parking assist..................... 255, 257
Function .......................................................... 257
Warning message..................................... 259
J
Jack
Positioning a floor jack.............................. 371
Jam protection function
Electronic roof sunshade.........................149
Moon roof .......................................................145
Panoramic moon roof...............................149
Power trunk opener and closer .......... 109
Power windows............................................ 142
Rear door sunshade ................................ 347
K
Keyless entry
Smart access system with push-button
start ..................................................................... 111
Wireless remote control........................... 98
Keys
Battery-saving function ..............................112
Electronic key ................................................. 96
Engine switch.................................................164
If the electronic key does not operate
properly....................................................... 433 If you lose your keys ................................. 432
Key number plate .........................................96
Keyless entry .......................................... 100, 111
Mechanical key .............................................. 96
Replacing the battery .............................. 399
Warning buzzer ............................................ 112
Wireless remote control ...........................98
Knee airbags .................................................... 29 L
Lane change assist function .................... 225
Lane Tracing Assist (LTA)
Operation ...................................................... 225
Warning messages................................... 237
Language (multi-information display) ... 85
LATCH anchors ............................................. 53
LDH (Lexus Dynamic Handling system)
.......................................................................... 295
Lever
Auxiliary catch lever ...................................371
Hood lock release lever ...........................371
Internal trunk release lever..................... 109
Shift lever ..........................................................167
Turn signal lever ...........................................173
Wiper lever .................................................... 184
Lexus climate concierge ............................. 311
Lexus Dynamic Handling system (LDH)
.......................................................................... 295
Lexus Enform Safety Connect.................. 58
Lexus Safety System + 2.0
Automatic High Beam ............................. 182
Dynamic radar cruise control with
full-speed range ...................................... 237
LTA(Lane Tracing Assist) ..................... 225
PCS (Pre-Collision System) ................. 215
RSA (Road Sign Assist).......................... 247
Lexus Safety System + A ............................. 191
Automatic High Beam ............................. 182
Dynamic radar cruise control with
full-speed range .......................... 237, 247
FCTA (Front Cross Traffic Alert)...... 222
LTA (Lane Tracing Assist) .................... 225