2015 Lexus GS450h air filter

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GS450h_OM_OM30F70U_(U)
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6-3. Do-it-yourself maintenanceDo-it-yourself service precautions................................ 423
Hood ............................................... 426
Positioning a floor jack..............427
Engine compartment ............... 429
12-volt battery ............................. 439
Tires.................................................. 443
Tire inflation pressure ............... 453
Wheels ........................................... 456
Air conditioning filter ............... 458
Electronic key battery.............. 460
Checking and replacing fuses.............................................. 462
Headlight aim ............................... 477
Light bulbs .....................................479
7-1. Essential information Emergency flashers .................. 494
If your vehicle has to be stopped in an emergency.... 495 7-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 496
If you think something is wrong ................ 502
If a warning light turns on or a warning buzzer sounds..... 503
If a warning message is displayed ..................................513
If you have a flat tire ....................541
If the hybrid system will not start ............................... 554
If the shift lever cannot be shifted from P ..................... 556
If the parking brake cannot be released .................................557
If the electronic key does not operate properly ..................... 559
If the 12-volt battery is discharged............................. 562
If your vehicle overheats ......... 566
If the vehicle becomes stuck ............................................... 571
7When trouble arises

GS450h_OM_OM30F70U_(U)
3395-2. Using the air conditioning system and defogger
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Interior features
■Option control screen
Select on the operation screen to display the option control
screen. The functions can be switched on and off.
Select to set cooling and de humidification function on/off
Vehicles without rear air conditioning system:
The temperature for the driver’s an d front passenger’s seats can be
adjusted separately (DUAL mode) ( P. 3 4 1 )
Vehicles with rear air conditioning system:
The temperature for the driver’s, fr ont passenger’s and rear seats
( P. 355) can be adjusted separately (3-ZONE mode) ( P. 3 4 1 )
Prevent ice from building up on the windshield and wiper blades
(if equipped) ( P. 361)
Remove pollen from the air (Micro dust and pollen filter) ( P. 3 4 9 )
Without rear air conditioning sys-
temWith rear air conditioning sys-
tem
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GS450h_OM_OM30F70U_(U)
3495-2. Using the air conditioning system and defogger
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Interior features
Select on the operation screen to display the option control
screen.
Operate micro dust and pollen
filter on/off.
Outside air mode switches to
(recirculated air) mode. Pollen is
removed from the air and the air flows
to the upper part of the body.
Usually the system will turn off auto-
matically after approximately 1 to 3
minutes.
Operates S-FLOW mode on/off.
When the S-FLOW mode button is
pressed, the airflow changes as fol-
lows.
Without rear air conditioning system:
Air flows to the front seats only.
*
With rear air conditioning system:
Air flows to the front seats only, and if
the passenger seat is unoccupied, the
set temperature, outside humidity and
temperature inside the cabin are
assessed, and air flows to the driver
seat only.
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: Air may also flow to the rear seats depending on the situation.
Micro dust and pollen filter button
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S-FLOW mode button

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GS450h_OM_OM30F70U_(U)
5-2. Using the air conditioning system and defogger
■Outside/recirculated air mode
●When driving on dusty roads such as tunn els or in heavy traffic, set the outside/
recirculated air mode button to the recirculated air mode. This is effective in pre-
venting outside air from entering the vehicl e interior. During cooling operation, set-
ting the recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automatically switch depending on the tem-
perature setting or the inside temperature.
■When the outside temperature exceeds 75°F (24°C) and the air conditioning sys-
tem is on
●In order to reduce the air conditioning power consumption, the air conditioning
system may switch to recirculated air mode automatically. This may also reduce
fuel consumption.
●Recirculated air mode is selected as a default mode when the power switch is
turned on.
●It is possible to switch to outside air mode at any time by pressing .
■Automatic mode for air intake control
In automatic mode, the system detects ex haust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
When the dehumidification function is off, and the fan is operating, turning automatic
mode on will activate the dehumidification function.
■Micro dust an d pollen filter
●In order to prevent the windshield from fogging up when the outside air is cold, the
following may occur:
• Outside air mode does not switch to (recirculated air) mode.
• The dehumidification function operates.
• The operation cancels after approximately 1 minute.
●In rainy weather, the windows may fog up. Press .
●In extremely humid weather, the windows may fog up.
●The pollens are filtered out even if the mi cro dust and pollen filter is turned off.
■When the S-FLOW mode operates
If air flows to the driver’s seat only, the temperature setting for the front passenger’s
seat is not displayed.

GS450h_OM_OM30F70U_(U)
3535-2. Using the air conditioning system and defogger
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Interior features
■Operation of the air conditioning system in Eco drive mode
In the Eco drive mode, the air conditioning system is controlled as follows to priori-
tize fuel efficiency:
●Engine speed and compressor operation co ntrolled to restrict heating/cooling
capacity
●Fan speed restricted when automatic mode is selected
To improve air conditioning performanc e, perform the following operations:
●Adjust the fan speed
●Turn off Eco drive mode
■When the outside temperature falls to nearly 32 F (0C)
The dehumidification function may not operate even when “A/C” on the option con-
trol screen is selected.
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
●During use, various odors from inside an d outside the vehicle may enter into and
accumulate in the air condit ioning system. This may then cause odor to be emitted
from the vents.
●To reduce potential odors from occurring:
• It is recommended that the air conditio ning system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time immedi- ately after the air conditioning system is started in automatic mode.
■Air conditioning filter
 P. 4 5 8
■Customization
Settings (e.g. exhaust gas sensor sensitivity) can be changed.
(Customizable features: P. 5 9 9 )

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GS450h_OM_OM30F70U_(U)
6Maintenance and care
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 408
Cleaning and protecting the vehicle interior ................... 412
6-2. Maintenance Maintenance requirements .... 415
General maintenance ............... 418
Emission inspection and maintenance (I/M)
programs .................................... 422 6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ................................ 423
Hood ............................................... 426
Positioning a floor jack ..............427
Engine compartment ............... 429
12-volt battery.............................. 439
Tires .................................................. 443
Tire inflation pressure ............... 453
Wheels ........................................... 456
Air conditioning filter ............... 458
Electronic key battery ..............460
Checking and replacing fuses .............................................. 462
Headlight aim ...............................477
Light bulbs..................................... 479

GS450h_OM_OM30F70U_(U)
4256-3. Do-it-yourself maintenance
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Maintenance and care
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious
injury, observe the following precautions.
■When working on the engine compartment
●Make sure that the “POWER ON” on the multi-information display and the
“READY” indicator are both off.
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, power control unit, radiator, exhaust manifold,
etc. right after driving as they may be hot. Oil and ot her fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes are flam-
mable.
■When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automatically
start to run if the air conditioning is on and/or the coolant temperature is high.
(  P. 4 3 6 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from get-
ting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to
dirt in the air.

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GS450h_OM_OM30F70U_(U)
6-3. Do-it-yourself maintenance
Air conditioning filter
Turn the power switch off.
Open the glove box. Lift up the
side with the stay, disconnect the
stay tabs and remove the parti-
tion by pulling horizontally.
Press the tabs and remove the fil-
ter cover.
Press the tabs and remove the fil-
ter case.
The air conditioning filter must be changed regularly to maintain air
conditioning efficiency.
Removal method
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