2017 Lexus GS F warning lights

5187-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30F83E_(EE)
If a warning light turns on or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
Brake system warning light (warning buzzer)

523
7-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized Lexus retailer
or Lexus authorized repairer, or any reliable repairer. The vehicle will become
extremely unstable during braking, 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
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than us ual when operating, hold firmly and oper-
ate 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
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change it
with the spare tire and have the flat tire repaired by the nearest any authorized Lexus
retailer or Lexus authorized repa irer, or any reliable repairer.
●Avoid abrupt maneuvering and braking. If the 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.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pressure warning
system may not operate properly.

5407-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30F83E_(EE)
(If equipped)
Indicates that the LDA (Lane Departure Alert with steer-
ing control) system cannot be used as the vehicle speed
is approximately 50 km/h (32 mph) or lessDrive the vehicle at approximately 50 km/h
(32 mph) or more.
(If equipped)
Indicates that LDA (Lane Departure Alert with steering
control) system cannot be used due to the vehicle speed
being too high Slow down.
(If equipped)
Indicates that LKA (Lane-Keeping Assist) system cannot
be used due to the vehicle speed being too high Slow down.
Indicates that the engine switch is turned off or turned to
ACCESSORY mode and the driver’s door is opened
while the lights are turned on
A buzzer also sounds.
 Turn the lights off.
(If equipped)
Indicates that the moon roof is not fully closed (with the
engine switch off, and the driver’s door open)
A buzzer also sounds.
 Close the moon roof.
Warning messageDetails/Actions
(Flashes)
(Flashes)

549
7-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
(If equipped)
Indicates that the fuel injectors require maintenance  Have any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer replenish the
injector cleaner and reset the message.
(If equipped)
Indicates that the Automatic High Beam switch was
pressed while the low beams were onTurn the high beam headlights on before pressing
the Automatic High Beam switch.
(If equipped)
Indicates that the Adaptive High-beam System switch
was pressed while th e low beams were on
 Turn the high beam headlights on before pressing
the Adaptive High-beam System switch.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)
system was turned off, the pre-crash braking and pre-
crash brake assist are stopped (The pre-crash warning
function will be operational) Turn the VSC on. ( P. 378)
Warning messageDetails/Actions

661
Alphabetical index
GS350_200t_GS F_OM_OM30F83E_(EE)
Clock ...............................................109, 429
Coat hooks .............................................. 434
Condenser ............................................. 466
Console box ........................................... 420
Console box light................................... 421
Coolant ..................................................... 464
Capacity ................................................. 625
Checking ............................................... 464
Preparing and checking before winter ....................................383
Cooling system ...................................... 464 Engine overheating ..........................602
Cruise control Cruise control .....................................355
Dynamic radar cruise control with full-speed range......................331
Dynamic radar cruise control ..... 343
Cup holders ............................................. 421
Curtain shield airbags ............................ 51
Customizable features ....................... 634
DAB (Digital Audio Broadcast) *
Daytime running light system ......... 264
Defogger Front windshield ................................. 402
Outside rear view mirrors.............402
Rear window ........................................ 402
Differential Front differential.................................. 627
Rear differential ................................... 627 Digital Audio Broadcast (DAB)
*
Dimensions ............................................... 612
Display 12.3-inch display ................................ 394
Drive information.......................122, 130
Dynamic radar cruise control
with full-speed range ..................... 331
Dynamic radar cruise control ..... 343
LDA (Lane Departure Alert with steering control)..................... 321
LKA (Lane-Keeping Assist) .......... 312
Multi-information display.........121, 129
Trip information ...........................108, 113
Warning message ............................ 524
Do-it-yourself maintenance ............. 449
Door courtesy lights Location ................................................... 416
Wattage ................................................... 631
Door lock Doors......................................................... 159
Smart entry & start system ............. 173
Wireless remote control ................. 154
Doors...........................................................159 Automatic door locking and
unlocking system ............................. 163
Door glasses.......................................... 214
Door lock ................................................ 162
Open door warning buzzer .......... 174
Open door warning light .............. 520
Outside rear view mirrors ................ 211
Rear door child-protector ............. 163
D
* : Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.

663
Alphabetical index
GS350_200t_GS F_OM_OM30F83E_(EE)
Emergency brake signal .................... 376
Emergency flashers ............................ 508
Emergency tire puncture
repair kit ................................................ 573
Engine......................................................... 616 Accessory mode.................................. 241
Compartment...................................... 454
Engine switch....................................... 240
Hood ..........................................................451
How to start the engine .................. 240
Identification number ........................ 615
Ignition switch
(engine switch) ................................ 240
Overheating .........................................602
Engine compartment cover ............. 457
Engine coolant ....................................... 464 Capacity ................................................. 625
Checking ............................................... 464
Preparing and checking before winter ....................................383
Engine coolant temperature gauge.............................................. 108, 113
Engine oil.................................................. 459 Capacity .................................................. 618
Checking ...............................................459
Oil level warning message ........... 524
Oil pressure warning message.............................................. 524
Preparing and checking before winter ....................................383 Engine switch ......................................... 240
Auto power off function ..................242
Changing the engine switch modes.................................................... 241
If your vehicle has to be stopped in an emergency .........509
Starting the engine............................ 240
EPS (Electric Power Steering) ....... 376
Function.................................................. 376
Warning light.........................................519
Warning message ............................ 524
Expert mode........................................... 378
First-aid kit storage net ...................... 425
Flat tire
Vehicles with spare tire.................. 557
Vehicles without spare tire........... 573
Floor mats ................................................... 42
Fluid Automatic transmission.................. 626
Brake ....................................................... 628
Washer ................................................... 470
Fog lights .................................................. 275
Replacing light bulbs ....................... 504
Switch .......................................................275
Follow me home system .................... 263
Footwell light ............................................416
Front air conditioning system .......... 396
Front fog lights ....................................... 275 Replacing light bulbs ....................... 504
Switch .......................................................275
F
*: Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.

664Alphabetical index
GS350_200t_GS F_OM_OM30F83E_(EE)
Front personal lights ..............................417
Front position lights.............................. 262
Light switch ........................................... 262
Replacing light bulbs....................... 504
Welcome light illumination control................................................... 160
Front seats ................................................ 196 Adjustment ............................................. 196
Cleaning................................................. 444
Correct driving posture .................... 44
Driving position memory ................ 199
Head restraints.................................... 204
Power easy access system ............ 199
Seat heaters ............................................ 412
Seat position memory ...................... 199
Seat ventilators ...................................... 412
Front turn signal lights......................... 255 Replacing light bulbs........... 499, 504
Turn signal lever .................................255
Wattage....................................................631
Fuel ............................................................. 282 Capacity ................................................... 617
Fuel gauge..................................... 108, 113
Fuel pump shut off system...............517
Information ............................................ 632
Refueling ................................................ 282
Type ............................................................ 617
Warning light .......................................520
Warning messages........................... 524
Fuel consumption
Average fuel consumption............................ 122, 130
Average fuel consumption after refueling .......................... 122, 130
Current fuel consumption.... 122, 130 Fuel filler door ........................................ 282
Refueling ................................................ 282
When the fuel filler door cannot be opened......................... 284
Fuel pump shut off system .................. 517
Fuses .......................................................... 493
Gauges ..............................................108, 113
Glove box................................................ 420
Glove box light ...................................... 420
Hands-free system (for cellular phone) *
Head restraints ...................................... 204
Headlight cleaner...................... 277, 278
Headlights ............................................... 262 Adaptive Front-lighting
System (AFS)................................... 263
AHS (Adaptive High-beam
System) ............................................... 265
Automatic High Beam
system.................................................. 270
Follow me home system................ 263
Headlight leveling warning message ............................................. 524
Light switch............................................262
Replacing light bulbs ....................... 504
Head-up display....................................... 141
Heated steering wheel.......................... 411
G
H

665
Alphabetical index
GS350_200t_GS F_OM_OM30F83E_(EE)
Heaters ..................................................... 396
Air conditioning system..................396
Heated steering wheel...................... 412
Outside rear view mirrors.............402
Seat heaters ............................................ 412
Hill-start assist control ........................ 376
Hood ........................................................... 451 Open..........................................................451
Warning message............................. 524
Hooks
Cargo hooks........................................ 424
Coat hooks ........................................... 434
Luggage hook..................................... 424
Retaining hooks (floor mat)............. 42
Horn ........................................................... 207 Identification .............................................614
Engine ....................................................... 615
Vehicle...................................................... 614
Ignition switch (engine switch)........ 240 Auto power off function ..................242
Changing the engine switch modes.................................................... 241
If your vehicle has to be stopped in an emergency .........509
Starting the engine............................ 240
Illuminated entry system ..................... 418
Immobilizer system................................. 86
Indicators .................................................. 103
Initialization Items to initialize ................................... 651
Moon roof ............................................... 219
Power windows ................................... 215
Tire pressure warning system...................................................473
Initiators (tire pressure warning system)................................................... 483
Inside door handle lights .....................416
Inside rear view mirror ....................... 209
Instrument panel light control................................................ 111, 118
Interior lights.............................................416
Intrusion sensor and tilt sensor .......... 95
ISOFIX rigid anchors .............................76I
* : Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.