2016 Lexus GS F heating

342
GS350_200t_GS F_OM_OM30E86U_(U)5-2. Using the air conditioning system and defogger
Heated steering wheel∗/seat heaters∗/seat ventilators∗
Turns the heated steering wheel on/off
The indicator light comes on when the
heater is operating.
●The heated steering wheel can be used when the engine switch is in IGNITION ON
mode.
●The heated steering wheel will automatically turn off after about 30 minutes.
∗: If equipped
Heated steering wheel and seat heaters heat the side grips of the steering
wheel and seats, respectively. Seat ventilators maintain good airflow by blow-
ing air from the seats.
WA R N I N G
●Care should be taken to prevent injury if
anyone in the following categories comes in
contact with the steering wheel or seats when the heater is on:
• Babies, small children, the elderly, th e sick and the physically challenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold remedies, etc.)
●Observe the following precautions to prevent the minor burns or overheating:
• Do not cover the seat with a blanket or cushion when using the seat heater.
• Do not use seat heater more than necessary.
NOTICE
●To prevent damage to the seat heaters/seat ventilators, do not put heavy objects that
have an uneven surface on the seat and do not stick sharp objects (needles, nails, etc.)
into the seat.
●To prevent battery discharge, do not use the functions when the engine is off.
Heated steering wheel (If equipped)

346
GS350_200t_GS F_OM_OM30E86U_(U)5-2. Using the air conditioning system and defogger
■Automatic operation of the seat heater during Eco drive mode
If the driving mode select switch is switched
to Eco drive mode in cold temperatures, the
seat heater may be automatically operated to assist heating performance.
■Automatic operation during S-FLOW mode
The front seat heater and ventilator or the rear seat heater may automatically turn off
when S-FLOW mode is turned on during automatic mode. ( →P. 3 2 9 )
■Button lock function (vehicles with rear control panel)
To prevent inadvertent operation, some buttons on the rear armrest can be locked.
(→ P. 3 4 1 )
■When the switch is disabled (v ehicles with rear control panel)
When the rear control panel switch cannot be operated even though the button lock
function is released, check whether the switch is disabled due to selecting on
Remote Touch screen. ( →P. 335)
■Rear control panel illumination off functi on (vehicles with rear control panel)
Control panel illumination on the rear armrest can be turned off. ( →P. 3 4 1 )
■Customization
The automatic mode settings for the front seat heaters and ventilators or the rear seat
heaters can be changed. (Customizable features: →P. 5 6 8 )

4657-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30E86U_(U)
7
When trouble arises
(GS F only)
Indicates that the LDA (Lane Departure Alert with steer-
ing control) system has determined that the driver does
not have their hands on the steering wheel while the
steering control function is on
→ Firmly hold the steering wheel.
(If equipped)
Indicates that the LKA (Lane-Keeping Assist) system has
determined that the driver does not have their hands on
the steering wheel while the steering control function is
on
→Firmly hold the steering wheel.
Indicates that the parking brake system is overheating
A buzzer also sounds.
→ Do not use the parking brake until the message dis-
appears.
Indicates an engine malfunction
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Warning messageDetails/Actions
(U.S.A.) (Canada)
(U.S.A.) (Canada)

528
GS350_200t_GS F_OM_OM30E86U_(U)7-2. Steps to take in an emergency
If your vehicle overheats
●The needle of the engine coolant temperature gauge (
→P. 86, 92) enters the
red zone or a loss of engine power is experienced. (For example, the vehicle
speed does not increase.)
●“Engine Coolant Temp High Stop in a Safe Place See Owner’s Manual” is
shown on the multi-information display.
●Steam is coming from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning system, and
then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down sufficiently, inspect the hoses and cooling
core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Lexus
dealer.
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
1
2

606Alphabetical index
GS350_200t_GS F_OM_OM30E86U_(U)
Child restraint system............................ 59Booster seats, definition ....................59
Booster seats, installation.................. 67
Convertible seats, definition ............59
Convertible seats, installation .........65
Front passenger occupant
classification system ......................... 52
Infant seats, definition ..........................59
Infant seats, installation .......................65
Installing CRS
with LATCH anchors ..................... 64
Installing CRS with seat belts ..........65
Installing CRS with top tether strap .........................68
Child safety ................................................ 58 Airbag precautions .............................. 44
Battery precautions ................. 411, 527
Child restraint system .........................59
How your child should wear the seat belt ................................. 37, 38
Installing child restraints..................... 63
Moon roof precautions....................180
Power window lock switch ............ 175
Power window precautions ...........177
Rear door child-protectors ........... 140
Removed electronic key battery precautions.............. 430
Seat belt comfort guide ..................... 37
Seat belt extender precautions ......40
Seat belt precautions .......................... 62
Seat heater precautions.................. 342
Trunk precautions............................... 146 Child-protectors ....................................140
Cleaning .......................................378, 382
Aluminum wheels .............................. 379
Exterior ................................................... 378
Interior ..................................................... 382
Seat belts................................................383
Clock................................................. 87, 359
Coat hooks ............................................. 364
Condenser.............................................. 408
Console box............................................. 351
Console box light ................................... 351
Consumption screen ............................128
Cooling system ..................................... 406 Engine overheating .......................... 528
Consumption screen ............................ 127
Cruise control Cruise control .....................................290
Dynamic radar cruise control ..... 278
Dynamic radar cruise control with full-speed range ................... 266
Cup holders............................................ 352
Curtain shield airbags ............................42
Customizable features ...................... 568
Daytime running light system............ 216
Defogger Front windshield................................. 334
Outside rear view mirrors ............ 334
Rear window ........................................ 334
Differential Front differential .................................548
Rear differential................................... 549
D

608Alphabetical index
GS350_200t_GS F_OM_OM30E86U_(U)
Eco drive mode ..................................... 293
Eco Driving Indicator............................. 85
Eco driving meter .................................... 92
EDR (Event data recorder) ...................10
Electric Power Steering (EPS) .......309Function ................................................. 309
Warning light .......................................453
Warning message ............................ 459
Electronic key ..........................................132
Battery-saving function .................... 152
If the electronic key does not operate properly............................ 520
Replacing the battery ....................... 429
Emergency, in case of If a warning buzzer sounds...........452
If a warning light turns on............... 452
If a warning message
is displayed ....................................... 459
If the electronic key
does not operate properly ....... 520
If the engine will not start................. 515
If the parking brake cannot be released......................... 518
If the shift lever cannot be shifted from P ............. 517
If the vehicle battery is discharged .........................................523
If you have a flat tire ...............491, 502
If you think something is wrong.............................................. 450
If your vehicle becomes stuck .....534
If your vehicle has to be stopped in an emergency .............................443
If your vehicle needs to be towed .......................................444
If your vehicle overheats ............... 528 Emergency flashers .............................442
Emergency tire puncture repair
kit ............................................................. 502
Engine
Accessory mode ................................ 198
Compartment ..................................... 396
Engine switch ........................................ 197
Hood........................................................ 393
How to start the engine.................... 197
Identification number .......................540
Ignition switch (engine switch.................................... 197
Overheating.........................................528
Engine compartment cover............. 399
Engine coolant ...................................... 406 Capacity ................................................. 547
Checking ...............................................406
Preparing and checking
before winter ......................................316
Engine coolant temperature
gauge ................................................ 86, 94
Engine immobilizer system .................. 72
Engine oil ................................................... 401 Capacity ................................................. 542
Checking .................................................401
Oil level warning message ........... 459
Oil pressure warning message........................... 459
Preparing and checking before winter ......................................316
E

614Alphabetical index
GS350_200t_GS F_OM_OM30E86U_(U)
Outer foot lightsOuter foot lights ................................. 347
Replacing light bulbs ........................439
Wattage ................................................. 554
Outside rear view mirrors ................... 171 Adjusting and folding .......................... 171
Blind Spot Monitor........................... 298
Linked mirror function
when reversing ..................................173
Mirror position memory .................. 160
Outside rear view mirror defoggers ............................334
Outside temperature display ..... 87, 94
Overheating, Engine .......................... 528
Paddle shift switches ........................... 204
Parking assist sensors (intuitive parking assist)
*
Parking brake.......................................... 210 If the parking brake cannot be released......................... 518
Operation ............................................... 210
Parking brake engaged warning buzzer .............................. 459
Parking brake engaged
warning message .......................... 459
Parking lights............................................215
Light switch ............................................ 215
Replacing light bulbs ........................439
Welcome light illumination control ......................... 138 PCS (Pre-Collision System)............. 237
Function ...................................................237
Warning light ....................................... 453
Warning message............................. 459
Personal lights ....................................... 348
Power easy access system.................160
Pop-up display ............................... 105, 117
Power outlets ......................................... 360
Power steering (Electric Power Steering system)................................ 309
Warning light ....................................... 453
Warning message............................. 459
Power trunk opener and closer ....... 143
Power windows....................................... 175 Door lock linked window operation ........................... 176
Jam protection function.................... 175
Operation................................................ 175
Window lock switch .......................... 175
Pre-Collision System (PCS)............. 237
Function ...................................................237
Warning light ....................................... 453
Warning message............................. 459
P