2020 Lexus LC500h warning lights

3447-2. Steps to take in an emergency
■Rear passengers’ seat belt reminder lights (warning buzzer*1)*2
*1: Rear passenger’s seat belt buzzer:
The rear passenger’s seat belt buzzer sounds to alert the rear passenger that his or her seat
belt is not fastened. The buzzer sounds for 6 seconds if the vehicle reaches a speed of 12
mph (20 km/h). Then, if the seat belt is still un fastened, the buzzer will sound in a different
tone for 24 more seconds.
*2: This light illuminates on the center panel.
■Master warning light (warning buzzer)
■Tire pressure warning light
■High coolant temperature warning light (warning buzzer)*
Warning lightDetails/Actions
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.
Warning lightDetails/Actions
A buzzer sounds and the warning ligh t comes on and flashes to indicate
that the master warning system has detected a malfunction.
 P.348
Warning lightDetails/Actions
When the light comes on:
Low tire inflation pressure such as
Natural causes ( P.346)
 Flat tire ( P.354)
 Adjust the tire inflation pressure to the specified level.
The light will turn off after a few mi nutes. In case the light does not
turn off even if the tire inflation pressure is adjusted, have the sys-
tem checked by your Lexus dealer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system
 Have the system checked by your Lexus dealer.
Warning lightDetails/Actions
Changes from a flashing to a solid light when the engine coolant tem-
perature increases
Immediately stop the vehicle in a safe place.
Handling method. ( P.368, 370)

3467-2. Steps to take in an emergency
sure warning reset switch will not turn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warnin g light may come on due to natural causes such as natural air leaks
and tire inflation pressure chan ges caused by temperature. In this case, adjusting the tire
inflation pressure will turn off the warning light (after a few minutes).
■Conditions that the tire pressure wa rning system may not function properly
 P.308
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning lig ht frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mode , have it
checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard du e to being in a noisy location or audio sound.
■Customization
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features:  P.395)
WARNING
■If both the ABS and the brake sy stem warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The vehicle
will become extremely unstable during brakin g, and the ABS system may fail, which could
cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
When the light comes on in yellow, the assist to the power steering is restricted. When the
light comes on red, the assist to the power steering is lost and handling operations of the
steering wheel become extremely heavy. When steering wheel operations are heavier
than usual, grip the steering wheel firmly and operate it using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of vehi-
cle control and result in death or serious injury.
●Decelerate to the lowest appr opriate speed as soon as possible. Do not drive over 50
mph (80 km/h).
●Check and adjust the tire in flation pressure immediately.
●If the tire pressure warning lig ht comes on even after tire inflation pressure adjustment,
it is probable that you have a flat tire. Have the flat tire replaced by the nearest Lexus
dealer.
●Avoid abrupt maneuvering and braking. If th e vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

3497-2. Steps to take in an emergency
7
When trouble arises
The warning lights and warning buzzers operate as follows depending on the con-
tent of the message. If a message indicates the need for inspection by a dealer, have
the vehicle inspected by your Lexus dealer immediately.
*: 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 vehicle specifications.
■System warning lights
The master warning light does not come on or flash in the following cases. Instead, a sepa-
rate system warning light will come on along with a message or image shown on the multi-
information display.
●Malfunction in the ABS
The ABS warning light comes on. ( P.340)
●Malfunction in the charging system
The charging system warning light comes on. ( P.339)
●Malfunction in the brake system
The brake system warning light comes on. ( P.339)
Messages and warnings
System warn-
ing lightWarning
buzzer
*Warning
Comes onComes onSoundsIndicates an important situation, such as
when a system related to driving is malfunc-
tioning or that danger may result if the cor-
rection procedure is not performed
Comes onSounds
Comes on or flashesSounds
Indicates an important situation, such as
when the systems shown on the multi-infor-
mation display may be malfunctioning
FlashesSoundsIndicates a situation, such as when damage
to the vehicle or danger may result
Comes onDoes not soundIndicates a condition, such as malfunction of
electrical components, their condition, or
indicates the need for maintenance
FlashesDoes not sound
Indicates a situation, such as when an oper-
ation has been performed incorrectly, or
indicates how to perform an operation cor-
rectly

4008-2. Customization
■Smart access system with push-button start and wireless remote control
( P.106, 115)
■Smart access system with push-button start ( P.115)
Automatic door unlockShifting the shift
position to POff
OODriver’s door is opened
Locking/unlocking of the trunk
when both side doors are
locked/unlocked
OnOffO
Time elapsed before the door lock
indicator lights turn off30 seconds
1 minute
O10 minutes
20 minutes
FunctionDefault settingCustomized setting
Operating signal (Buzzers)5OffOO1 to 7
Operation signal (Emergency
flashers)OnOffOO
Time elapsed before automatic
door lock function is activated if
door is not open ed after being
unlocked
60 seconds
Off
OO30 seconds
120 seconds
Open door warning buzzerOnOffO
FunctionDefault settingCustomized setting
Smart access system with push-
button startOnOffO
Smart door unlockingDriver’s doorBoth side doorsOO
Number of consecutive door lock
operations2 timesAs many as desiredO
FunctionDefault settingCustomized settingABC
ABC
ABC

4048-2. Customization
■Rain-sensing windshield wipers (P.180)
■Reverse warning buzzer ( P.158, 164)
■Seat belt reminder buzzer ( P.343)
Time elapsed before the outside
door handle lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation of the outside door han-
dle lights when the doors are
unlocked
OnOffO
Operation of the outside door han-
dle lights when a door is openedOnOffO
Fading out of the outside door han-
dle lights when they turn offLongShortO
FunctionDefault settingCustomized setting
Wiper operation when the wiper
switch is in the AUTO positionRain-sensing
operation
Intermittent opera-
tion linked to vehicle speed (with interval adjuster)
O
FunctionDefault settingCustomized setting
Signal (buzzer) when the shift posi-
tion is in RIntermittentSingleO
FunctionDefault settingCustomized setting
Speed-linked seat belt reminder
functionOnOffO
FunctionDefault settingCustomized settingABC
ABC
ABC
ABC

424Alphabetical index
Alphabetical index
A
A/C ................................................................... 252Air conditioning filter ............................... 320
Automatic air conditioning system ... 252
Micro dust and pollen filter................... 257
ABS (Anti-lock Brake System).............. 235 Function .......................................................... 235
Warning light ...............................................340
Active rear wing........................................... 232
Adaptive Variable Suspension System235
Airbags ............................................................... 28 Airbag operating conditions................... 30
Airbag precautions for your child ........ 33
Correct driving posture .............................23
Curtain shield airbag operating condi- tions .................................................................. 30
Curtain shield airbag precautions ....... 33
Front passenger occupant classification system ............................................................. 38
General airbag precautions ................... 33
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ......... 30
Side airbag precautions ............................ 33
Side and curtain shield airbags operating conditions...................................................... 30
Side and curtain shield airbags precau- tions .................................................................. 33
SRS airbags ..................................................... 28
SRS warning light ......................................340
Air conditioning filter ................................. 320
Air conditioning system ............................ 252 Air conditioning filter ............................... 320
Automatic air conditioning system ... 252
Micro dust and pollen filter................... 257
Alarm ................................................................... 70 Alarm .................................................................. 70
Warning buzzer ......................................... 339
Anchor brackets ..................................... 44, 52
Antennas (smart access system with push- button start) ................................................... 115 Anti-lock Brake System (ABS).............. 235
Function ..........................................................235
Warning light .............................................. 340
Approach warning........................................ 212
Automatic headlight leveling system .... 176
Automatic High Beam ................................178
Automatic light control system................ 175
Automatic transmission .............................. 157 M mode ............................................................162
Paddle shift switches ......................... 161, 162
Snow mode...................................................... 161
Auxiliary net................................................... 264
Average fuel economy................................. 86
Average vehicle speed ................................ 86
B
Back-up lights Replacing light bulbs ................................328
Battery (12-volt battery) ........................... 303 Battery checking ....................................... 303
If the 12-volt battery is discharged ..... 361
Preparing and checking before winter.......................................................................... 242
Replacing ...................................................... 365
Warning light ...............................................339
Battery (traction batter y) ............................ 63
Blind Spot Monitor (BSM)....................... 223 Blind Spot Monitor function ................. 227
Rear Cross Traffic Alert function ....... 229
Brake Brake hold .......................................................173
Fluid...................................................................382
Parking brake ............................................... 170
Regenerative braking ...................................61
Warning light .................................. 339, 343
Warning message .....................................349
Brake assist .................................................... 235
Break-in tips.....................................................139
Brightness control Instrument panel light control.................83
BSM (Blind Spot Monitor)....................... 223 Blind Spot Monitor function ................. 227

Alphabetical index425
Rear Cross Traffic Alert function....... 229
C
Care ........................................................ 278, 281Aluminum wheels ...................................... 279
Exterior ........................................................... 278
Interior ...............................................................281
Seat belts..........................................................281
Cargo capacity...............................................146
Cargo hooks ................................................. 266
Center Display ............................................. 246
Chains .............................................................. 243
Child restraint system................................... 43 Fixed with a LATCH system ..................50
Fixed with a seat belt....................................47
Front passenger occupant classification system ............................................................. 38
Points to remember .................................... 43
Riding with children ..................................... 43
Types of child restraint system installation method ........................................................... 44
Using an anchor bracket .......................... 52
Child safety ....................................................... 43 12-volt battery precautions .......304, 367
Airbag precautions...................................... 33
Child restraint system................................. 44
Heated steering wheel and seat heater precautions................................................ 259
How your child should wear the seat belt ............................................................................ 25
Power window lock switch.....................135
Power window precautions ...................135
Removed electronic key battery precau- tions ............................................................... 323
Seat belt extender precautions ............. 25
Seat belt precautions .................................. 43
Trunk precautions .........................................112
Cleaning................................................ 278, 281 Aluminum wheels ...................................... 279
Exterior ........................................................... 278
Interior ...............................................................281
Radar sensor..................................... 189, 225 Seat belts ......................................................... 281
Clock ................................................................ 268
Coat hooks..................................................... 269
Condenser ...................................................... 301
Console box .................................................. 265
Console box light ........................................ 265
Cooling system.............................................300 Engine overheating...................... 368, 370
Hybrid system overheating ....................371
Cornering lights ............................................. 177
Cruise control Dynamic radar cruise control with full-
speed range ............................................. 206
Cup holder ..................................................... 265
Current fuel consumption .......................... 86
Curtain shield airbags .................................. 28
Customizable features .............................. 395
D
Daytime running light system ................... 175
Defogger Outside rear view mirrors.....................253
Rear window ................................................253
Windshield ....................................................253
Differential ...................................................... 382
Dimension ...................................................... 376
Dinghy towing................................................. 147
Display BSM (Blind Spot Monitor).................... 223
Drive information ..........................................86
Dynamic radar cruise control with full-
speed range ............................................. 206
Energy monitor .............................................. 96
Head-up display..............................................91
Intuitive parking assist ................................ 217
LKA (Lane-Keeping Assist) .................202
Multi-information display ..........................84
Warning message .................................... 348
Distance ............................................................. 86
Do-it-yourself maintenance ....................288
Door courtesy lights ................................... 262
Door lock

Alphabetical index427
If the hybrid system will not start ........356
If your vehicle has to be stopped in an
emergency ................................................330
Ignition switch (engine switch) ............ 148
Ignition switch (power switch) ............... 151
Overheating.................................... 368, 370
Power switch .................................................. 151
Engine coolant..............................................300 Capacity ........................................................ 380
Checking ...................................................... 300
Preparing and checking before winter......................................................................... 242
Engine coolant temperature gauge ....... 80
Engine immobilizer system ........................ 68
Engine oil ........................................................ 297 Capacity ......................................................... 378
Checking ....................................................... 297
Preparing and checking before winter......................................................................... 242
Warning light ............................................... 339
Warning message.......................................351
Engine oil maintenance data .................. 299
Engine oil temperature gauge .................. 80
Engine switch (power switch) ......... 148, 151 Auto power off function ..................151, 154
Changing the engine switch (power switch) modes.................................150, 154
If your vehicle has to be stopped in an
emergency ................................................330
Starting the engine (hybrid system).................................148, 151
EPS (Electric Power Steering) .............. 235 Function .......................................................... 235
Warning light ...............................................340
EV drive mode............................................... 155
Event data recorder (EDR) ........................... 8
EV indicator ........................................................ 61
F
First-aid kit storage belt ............................ 266
Flat tire ............................................................. 354 Tire pressure warning system ............. 307 Floor mats ...........................................................22
Fluid
Automatic transmission ........................... 381
Brake ................................................................382
Hybrid transmission................................... 381
Washer ...........................................................302
Footwell light ................................................. 262
Front passenger occupant classification system .............................................................. 38
Front seats ........................................................ 122 Adjustment ...................................................... 122
Cleaning .......................................................... 281
Correct driving posture ............................ 23
Driving position memory .........................124
Head restraints.............................................. 127
Jam protection function ............................123
Memory recall function............................ 125
Seat heaters ..................................................259
Seat position memory ...............................124
Seat ventilators ............................................259
Front side marker light ................................ 175 Light switch .....................................................175
Replacing light bulbs ................................328
Front turn signal lights .................................169 Replacing light bulbs ................................328
Turn signal lever .......................................... 169
Fuel ..................................................................... 184 Capacity ......................................................... 377
Fuel gauge ....................................................... 80
Fuel pump shut off system.................... 338
Information ................................................... 385
Refueling.......................................................... 184
Type .................................................................. 377
Warning light ...............................................343
Fuel consumption Average fuel consumpt ion after refueling
.............................................................................86
Average fuel economy ..............................86
Current fuel consumption ........................86
Fuel filler door ................................................ 184 If the fuel filler do or cannot be opened
......................................................................... 358