air conditioning Lexus GS350 2020 Owner's Manual

TABLE OF CONTENTS4
GS350_GS F_OM_OM30J07U_(U)
5-1. Remote Touch screenRemote Touch/12.3-inch display............................................312
5-2. Using the air conditioning system and defogger
Front automatic air conditioning system ......... 318
Rear air conditioning system.......................................... 329
Heated steering wheel/ seat heaters/seat
ventilators................................... 332
5-3. Using the interior lights Interior lights list ......................... 337• Interior lights .......................... 338
• Personal lights....................... 338
5-4. Using the storage features List of storage features ............ 340• Glove box .................................341
• Console box ............................341
• Cup holders ........................... 342
• Auxiliary boxes ..................... 343
Trunk features ............................. 344 5-5. Using the other interior
features
Other interior features ............ 346 • Sun visors ................................ 346
• Vanity mirrors ....................... 346
• Clock ........................................ 347
• Ashtrays................................... 347
• Power outlets ........................ 348
• Armrest.................................... 348
•Rear sunshade/
rear door sunshades .......... 349
•Trunk storage extension ...................................351
• Coat hooks............................. 352
• Assist grips ............................. 352
Garage door opener ............... 353
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 362
Cleaning and protecting the vehicle interior.................. 367
6-2. Maintenance Maintenance requirements... 370
General maintenance.............. 372
Emission inspection and maintenance (I/M)
programs.................................... 375
5Interior features
6Maintenance and care

5
1
8 7
6
5
4
3
2
GS350_GS F_OM_OM30J07U_(U)
9
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 376
Hood ............................................... 378
Positioning a floor jack ............ 379
Engine compartment ................ 381
Tires ................................................. 394
Tire inflation pressure .............. 404
Wheels ........................................... 407
Air conditioning filter ............... 409
Electronic key battery................. 411
Checking and replacing fuses................................................413
Headlight aim (vehicles with single-beam head lights) ........ 417
Light bulbs ......................................419
7-1. Essential information Emergency flashers .................. 424
If your vehicle has to be stopped in an
emergency ................................ 425
If the vehicle is trapped in rising water ................................ 426 7-2. Steps to take in an
emergency
If your vehicle needs to be towed ................................427
If you think something is wrong................ 433
Fuel pump shut off system...... 434
If a warning light turns on or a warning buzzer
sounds ......................................... 435
If a warning message is displayed .................................... 442
If you have a flat tire (vehicles with spare tire) ......................... 473
If you have a flat tire (vehicles without spare ti re) .................. 484
If the engine will not start ........ 498
If the parking brake cannot be released................................500
If the electronic key does not operate properly..................... 502
If the vehicle battery is discharged.................................505
If your vehicle overheats......... 509
If the vehicle becomes stuck ...............................................513
7When trouble arises

19Pictorial index
GS350_GS F_OM_OM30J07U_(U)
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 106, 114
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 106, 114
When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 442
Parking brake switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 217
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 217
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 306
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 437, 456
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 216
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
Headlights/parking lights/tail lights/daytime running lights . . . . . . . . . . . . P. 222
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 229
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 393
Headlight cleaners
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 230
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 463
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 424
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 149
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 378
Tilt and telescopic steering contro l switch . . . . . . . . . . . . . . . . . . . . . . . . . . P. 174
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 174
Driving position memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 166
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 318
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 318
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 324
Audio system*2
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 151
*1: If equipped
*2: Refer to “NAVIGATION AND MULT IMEDIA SYSTEM OWNER’S MANUAL”.
4
5
6
7
8
9
10
11
12
13
14

282
GS350_GS F_OM_OM30J07U_(U)4-5. Using the driving support systems
GS350 (vehicles with Adaptive Variable Suspension system)
Normal mode/Customized mode
Normal mode and customized mode ar
e selected by pressing the driving
mode select switch. Each time the switch is pressed, the driving mode
changes between normal mode and customized mode. When customized
mode is selected, the “Customize” or “CUSTOMIZE” indicator will be illumi-
nated.
Press the switch to change the driving mode to normal mode when selected to Eco
drive mode or sport mode.
• Normal mode
For normal driving.
• Customized mode
Allows you to drive with the power train, chassis and air conditioning sys-
tem functions set to your preferred settings.
Customized mode settings can only be changed on the drive mode cus-
tomization display of the Remote Touch screen. ( P. 552)
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that
involve frequent accelerating.
When not in Eco drive mode and the driving mode select switch is turned to the left,
the “ECO” or “ECO MODE” indicator come s on in the multi-information display.
Except
F SPORT models
F SPORT models
1
2

284
GS350_GS F_OM_OM30J07U_(U)4-5. Using the driving support systems
GS F
Normal mode/Customized mode
Normal mode and customized mode ar
e selected by pressing the driving
mode select switch. Each time the switch is pressed, the driving mode
changes between normal mode and customized mode. When customized
mode is selected, the “CUSTOMIZE” indicator will be illuminated.
Press the switch to change the driving mode to normal mode when Eco drive mode or
sport mode is selected. The normal mo de indicator comes on in the meter.
• Normal mode
For normal driving.
• Customized mode
Allows you to drive with the power train, chassis and air conditioning sys-
tem functions set to your preferred settings.
Customized mode settings can only be changed on the drive mode cus-
tomization display of the Remote Touch screen. ( P. 552)
Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that
involve frequent accelerating.
When not in Eco drive mode, if the driving mode select switch is turned to the left, the
Eco drive mode indicator comes on in the meter.
1
2

GS350_GS F_OM_OM30J07U_(U)
2854-5. Using the driving support systems
4
Driving
Sport mode•SPORT S mode
Assists acceleration response by co ntrolling the transmission and engine.
When not in SPORT S mode, if the driving mode select switch is turned to the
right, the “SPORT S” indicator comes on in the meter.
•SPORT S+ mode
Provides earlier downshift timing than SPORT S mode in order to maintain
a high engine speed and provides faster gear changes. This mode also
changes the steering feel, suspension control and VDIM control, making it
suitable for powerful sporty driving.
When in SPORT S mode, if the driving mode select switch is turned to the right,
the “SPORT S+” indicator comes on in the meter.
■Operation of the air conditioning system in Eco drive mode
Eco drive mode controls the heating/cooling operations and fan speed of the air condi-
tioning system to enhance fuel efficiency. To improve air conditioning performance, per-
form the following operations:
●Turn off eco air conditioning mode ( P. 320)
●Adjust the fan speed ( P. 319)
●Turn off Eco drive mode
■Automatic operation of the seat heater during Eco drive mode
Eco drive mode controls the heating operatio n and fan speed of the air conditioning sys-
tem to enhance fuel efficiency. If the driving mode select switch is switched to Eco drive
mode in cold temperatures, the seat heater will be automatically operated to assist heat-
ing performance.
■Automatic deactivation of sport mode and customized mode
If the engine switch is turned off after dr iving in sport mode or customized mode, the
drive mode will be changed to normal mode.
■Driving mode pop-up display (12.3-inch display only)
When the driving mode is changed, the sele cted driving mode will be temporarily dis-
played on the side display. ( P. 316)
3

311
GS350_GS F_OM_OM30J07U_(U)
5Interior features
5-1. Remote Touch screenRemote Touch/12.3-inch display ........................................... 312
5-2. Using the air conditioning system and defogger
Front automatic air conditio ning system .......... 318
Rear air conditioning system ..........................................329
Heated steering wheel/ seat heaters/seat
ventilators ...................................332
5-3. Using the interior lights Interior lights list.......................... 337• Interior lights ......................... 338
• Personal lights ...................... 338 5-4. Using the storage features
List of storage features ............340
• Glove box ................................ 341
• Console box............................ 341
• Cup holders ........................... 342
• Auxiliary boxes ..................... 343
Trunk features ............................. 344
5-5. Using the other interior features
Other interior features ............ 346 • Sun visors ................................ 346
• Vanity mirrors ....................... 346
• Clock ........................................ 347
• Ashtrays ................................... 347
• Power outlets.........................348
• Armrest ....................................348
•Rear sunshade/rear door sunshades........... 349
•Trunk storage
extension .................................. 351
• Coat hooks ............................. 352
• Assist grips.............................. 352
Garage door opener ...............353

GS350_GS F_OM_OM30J07U_(U)
3155-1. Remote Touch screen
5
Interior features
Press the “MENU” button on the Remote Touch to display the “Menu” screen.
The display may differ depending on the type of the system.
12.3-inch display: When an interruption screen is being displayed on the side display,
the “Menu” screen will be shown on the main display.
“Menu” screen
Vehicles with 8-inch displayVehicles with 12.3-inch display
SwitchFunction
Select to display the compass mode screen.*1
Select to display the “Destination” screen.*1
Select to display the radio control screen.*1
Select to display the media control screen.*1
Select to display the hand s-free operation screen.*1
Select to display the “LEXUS App Suite” screen.*1, 2
Select to display the “Information” screen.*1
Select to display the air conditioning control screen. ( P. 318)

3165-1. Remote Touch screen
GS350_GS F_OM_OM30J07U_(U)
*1: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
*2: If equipped
■Full screen display
The following functions can be displayed full screen:
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MAN- UAL”.
■Split-screen display
Different information can be displayed on the left and right of the screen. For
example, air conditioning system scre en can be displayed and operated while
the fuel consumption information screen is being displayed. The large screen
on the left of the display is called the main display, and the small screen to the
right is called the side display.
Select to display the “Setup” screen.*1
“Display”Select to adjust the contrast and brightness of the screens, turn the
screen off, etc.
*1
12.3-inch display operation
SwitchFunction
●Initial screen*
●“Menu” screen ( P. 315)
●Map screen*

GS350_GS F_OM_OM30J07U_(U)
3175-1. Remote Touch screen
5
Interior features
For details of the functions and operation of the main display, refer to the respec-
tive section.
■Display the side display
Basic screens
The following functions can be displaye d and operated on the side display.
Select the desired button. Navigation system
*
Audio*
Phone*
Vehicle information ( P. 136)
Air conditioning system
( P. 322)
To turn off the side display, press the “MAP” button on Remote Touch to display the
map screen, and then press .
If the item displayed on the main display is full screen display compatible ( P. 316), it
will be displayed full screen.
Interruption screens
Each of the following screens is displayed automatically in accordance with
conditions. • Intuitive parking assist
* (if equipped)
•Phone
*
• Destination Assist*
•Driving mode ( P. 281)
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MAN-
UAL”.
12.3-inch display function
1
2
3
4
5