2019 Lexus GS350 warning light

582What to do if... (Troubleshooting)
GS350_300_OM_OM30G96U_(U)
●The seat belt reminder light is flashing
Are the driver and the front passe nger wearing the seat belts? (P. 439)
●The parking brake indicator is on
Is the parking brake released? ( P. 217)
Depending on the situation, other types of warning buzzer may also sound.
( P. 437, 444)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 79)
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. ( P. 444)
●When a warning light turns on or a warning message is displayed, refer to
P. 437, 444.A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed

584Alphabetical index
GS350_300_OM_OM30G96U_(U)
Alphabetical index
A/C ..............................................................316Air conditioning filter......................... 410
Changing the rear seat settings ................................................. 323
Front automatic air conditioning system ................................................... 316
Micro dust and pollen filter ........... 322
Rear air conditioning system........ 327
S-FLOW mode ....................................317
ABS (Anti-lock Brake System)....... 296 Function ..................................................296
Warning light ....................................... 437
Warning message ............................. 444
Active Sound Control (ASC) ........... 221
Adaptive Front-lighting System (AFS) ...................................................... 223
Adaptive Variable Suspension system (AVS)...................................... 297
AFS (Adaptive Front-lighting System) .................................................. 223
Air conditioning filter ........................... 410
Air conditioning system .......................316 Air conditioning filter......................... 410
Changing the rear seat settings ................................................. 323
Front automatic air conditioning system ................................................... 316
Micro dust and pollen filter ........... 322
Rear air conditioning system........ 327
S-FLOW mode ....................................317 Airbags .......................................................... 41
Airbag operating conditions .......... 48
Airbag precautions for your child ....................................... 44
Airbag warning light ........................ 437
Correct driving posture .................... 34
Curtain shield airbag operating conditions ....................... 48
Curtain shield airbag precautions .......................................... 46
Front passenger occupant classification system......................... 52
General airbag precautions ........... 44
Locations of airbags.............................. 41
Modification and disposal of airbags................................................47
Side airbag operating conditions ............................................. 48
Side airbag precautions .................... 44
Side and curtain shield airbags operating conditions ....................... 48
Side and curtain shield airbags precautions .......................................... 44
SRS airbags ............................................... 41
Alarm ............................................................ 79 Alarm ...........................................................79
Warning buzzer..................... 437, 444
Anchor brackets.......................................63
Antennas (smart access system with push-button start) ..................... 156
Anti-lock Brake System (ABS) .......296 Function .................................................. 296
Warning light ....................................... 437
Warning message............................. 444
A

585Alphabetical index
GS350_300_OM_OM30G96U_(U)
Approach warning............................... 273
Armrest .................................................... 346
Armrest door ......................................... 349
ASC (Active Sound Control) ........... 221
Ashtrays.................................................... 345
Assist grips ..............................................350
Audio input
*
Audio system*
Automatic headlight leveling system .................................................... 224
Automatic light control system....... 222
Automatic transmission .....................208 If the shift lever cannot be shifted from P .....................................214
M mode ..................................................... 211
Paddle shift switches ......................... 210
AUX port
*
Auxiliary boxes ........................................341
AVS (Adaptive Variable Suspension system).......................... 297
Back-up lights Replacing light bulbs ........................ 422
Battery....................................................... 392
Battery checking................................... 392 If the vehicle battery is discharged ........................................ 507
Preparing and checking before winter ................................................... 304
Warning light ....................................... 437 Blind Spot Monitor (BSM) ............... 286
Blind Spot Monitor function.........289
Rear Cross Traffic Alert function.................................................. 291
Bluetooth
®*
Brake Fluid ............................................................391
Parking brake ........................................ 217
Warning light ........................... 437, 439
Warning message............................. 444
Brake assist ..............................................296
Brake Hold................................................ 219
Break-in tips .............................................189
Brightness control Instrument panel light control.......................................... 95, 103
BSM (Blind Spot Monitor) ............... 286 Blind Spot Monitor function.........289
Rear Cross Traffic Alert function.................................................. 291
Card key ....................................................138
Care................................................360, 364 Aluminum wheels ................................361
Exterior ...................................................360
Interior ..................................................... 364
Seat belts................................................365
Cargo capacity ..................................... 200
Cargo hooks ...........................................342
CD player
*
Chains ....................................................... 306
BC
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

587Alphabetical index
GS350_300_OM_OM30G96U_(U)
Dimensions ............................................. 522
Dinghy towing........................................ 202
Display12.3-inch display.................................. 314
Drive information ....................... 108, 115
Dynamic radar cruise control with full-speed range ....................266
Energy monitor .................................... 133
LKA (Lane-Keeping Assist) ........ 260
Multi-information display ....... 106, 114
Trip information ........................... 84, 98
Warning message ............................. 444
Do-it-yourself maintenance ............. 373
Door courtesy lights Location ................................................. 335
Door lock Doors ........................................................ 143
Smart access system with push-button start ............................. 156
Wireless remote control ................. 143
Doors...........................................................143 Automatic door locking and unlocking system.................... 146
Door glasses ........................................... 181
Door lock ................................................ 145
Open door warning buzzer.......... 157
Open door warning light...............439
Outside rear view mirrors ............... 177
Rear door child-protector.............. 146 Drive info 1/Drive info 2/
Drive info 3..................................... 111, 122 Drive information....................... 108, 115
Resetting ........................................ 108, 115
Drive-Start Control.....................189, 213
Driver’s seat position memory.......... 166 Driving position memory................. 167
Memory recall function ................... 168
Power easy access system .............166
Driving ....................................................... 188 Break-in tips .......................................... 189
Correct driving posture .................... 34
Driving mode select switch ............281
Procedures ............................................ 188
Winter drive tips ................................304
DRS (Dynamic Rear Steering) ........ 297 Function .................................................. 297
Warning message............................. 444
DVD player
*
Dynamic radar cruise control with full-speed range Function .................................................. 266
Warning message............................. 444
Dynamic Rear Steering (DRS) ........ 297 Function .................................................. 297
Warning message............................. 444
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

588Alphabetical index
GS350_300_OM_OM30G96U_(U)
Eco drive mode ...................................... 281
Eco Driving Indicator...............................91
Eco driving meter .................................... 98
EDR (Event data recorder) ...................10
Electric Power Steering (EPS) ....... 297Function .................................................. 297
Warning light ...................................... 438
Warning message ............................. 444
Electronic key ......................................... 138 Battery-saving function .................... 158
If the electronic key does not operate properly............................ 504
Replacing the battery .........................412
Emergency, in case of If a warning buzzer sounds........... 437
If a warning light turns on............... 437
If a warning message is displayed ........................................ 444
If the electronic key does not operate properly ....... 504
If the engine will not start............... 500
If the vehicle is trapped in rising water ........................................428
If the parking brake cannot be released ....................... 502
If the vehicle battery is discharged ........................................ 507
If you have a flat tire ............. 475, 486
If you think something is wrong...............................................435
If your vehicle becomes stuck ...... 518
If your vehicle has to be stopped in an emergency ............................. 427
If your vehicle needs to be towed .......................................429
If your vehicle overheats ................. 512 Emergency flashers .............................426
Emergency tire puncture repair
kit ............................................................. 486
Engine Accessory mode ............................... 204
Compartment ..................................... 378
Engine switch ...................................... 203
Hood........................................................ 375
How to start the engine.................. 203
Identification number....................... 524
Ignition switch (engine switch.................................. 203
Overheating........................................... 512
Engine compartment cover...............381
Engine coolant ...................................... 388 Capacity................................................. 529
Checking .............................................. 388
Preparing and checking before winter ....................................304
Engine coolant temperature gauge .............................................. 92, 100
Engine immobilizer system .................. 77
Engine oil ................................................. 383 Capacity................................................. 526
Checking ...............................................383
Oil level warning message ........... 444
Oil pressure warning message........................... 444
Preparing and checking before winter ....................................304
E

589Alphabetical index
GS350_300_OM_OM30G96U_(U)
Engine oil maintenance data ........... 368
Engine switch ......................................... 203Auto power off function................. 205
Changing the engine switch modes ..................................................204
If your vehicle has to be stopped in an emergency .......... 427
Starting the engine ........................... 203
EPS (Electric Power Steering) ....... 297 Function .................................................. 297
Warning light ...................................... 438
Warning message ............................. 444
Event data recorder (EDR) ...................10
Expert mode ...........................................300
First-aid kit storage net ...................... 342
Flat tire Vehicles with spare tire ..................475
Vehicles without spare tire .......... 486
Floor mats ................................................... 32
Fluid Automatic transmission ................. 530
Brake ......................................................... 531
Washer ...................................................394
Footwell light .......................................... 335
Front passenger occupant classification system ............................ 52
Front personal lights............................ 336 Front seats ................................................. 164
Adjustment..............................................164
Cleaning................................................. 364
Correct driving posture .................... 34
Driving position memory.................166
Head restraints ....................................... 171
Power easy access system .............166
Seat heaters ............................................ 331
Seat position memory .......................166
Seat ventilators...................................... 331
Front side marker lights......................222 Light switch............................................222
Replacing light bulbs ....................... 422
Welcome light illumination control.................................................... 144
Front turn signal lights .......................... 216 Replacing light bulbs ............. 421, 422
Turn signal lever ................................... 216
Wattage .................................................535
Fuel Capacity................................................. 525
Fuel gauge .................................... 93, 100
Fuel pump shut off system ............ 436
Information............................................536
Type.......................................................... 525
Warning light ....................................... 439
Warning messages .......................... 444
Fuel consumption Average fuel consumption............................. 108, 115
Average fuel consumption after refueling ........................... 108, 115
Current fuel consumption..... 108, 115
F

590Alphabetical index
GS350_300_OM_OM30G96U_(U)
Fuel filler door ........................................ 234When the fuel filler door cannot be opened ......................... 237
Fuel pump shut off system................. 436
Fuses ............................................................414
Garage door opener ........................... 351
Gauges ................................................92, 98
Glove box ................................................ 339
Glove box light ...................................... 339
Hands-free system (for cellular phone)
*
HD Radio® system*
Head restraints ......................................... 171
Headlights ............................................... 222 Adaptive Front-lighting System (AFS) ................................... 223
Automatic High Beam system .... 225
Headlight leveling warning message ........................... 444
Light switch ........................................... 222
Replacing light bulbs ........................ 422
Headlights aim............................. 418, 577
Head-up display......................................126
Heated steering wheel ....................... 330 Heaters
Air conditioning system ...................316
Heated steering wheel ...................330
Seat heaters ............................................ 331
Outside rear view mirrors ............ 322
Hill-start assist control ........................296
Hood ..........................................................375 Open ....................................................... 375
Warning message............................. 444
Hooks Cargo hooks ....................................... 342
Coat hooks ...........................................350
Retaining hooks (floor mat)..............32
Horn............................................................. 174
I/M test ...................................................... 372
Identification........................................... 523 Engine ..................................................... 524
Vehicle .................................................... 523
Ignition switch (engine switch) ....... 203 Auto power off function .................205
Changing the engine switch modes .................................................. 204
If your vehicle has to be stopped in an emergency...........427
Starting the engine ............................ 204
Illuminated entry system ....................337
Immobilizer system ................................. 77
Indicators .....................................................87
G
H
I

591Alphabetical index
GS350_300_OM_OM30G96U_(U)
InitializationItems to initialize................................. 564
Maintenance........................................ 368
Moon roof .............................................. 185
Power windows ................................... 182
Tire pressure warning system................................397
Initiators (tire pressure warning system)................................. 403
Inside door handle lights ................... 335
Inside rear view mirror ......................... 175
Instrument panel light control............................................. 95, 103
Interior lights........................................... 335
Intuitive parking assist
*
Function*
Warning message ............................. 444
Jack Positioning a floor jack ....................376
Vehicle-equipped jack............................................ 476, 488
Jack handle ................................. 476, 488
Jam protection function Moon roof .............................................. 185
Power trunk opener and closer.............................................. 151
Power windows ..................................... 181 Keyless entry ............................................ 156
Smart access system with push-button start....................156
Wireless remote control.................. 143
Keys .............................................................138 Battery-saving function ................... 158
Electronic key ....................................... 138
Engine switch ...................................... 203
If the electronic key does not operate properly ........504
If you lose your keys.................. 140, 141
Key number plate ............................... 138
Keyless entry ............................... 143, 156
Mechanical key.....................................139
Engine switch ...................................... 203
Replacing the battery ........................ 412
Warning buzzer................................... 157
Wireless remote control key ......... 143
Knee airbags ............................................... 41
J
K
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.