air filter Lexus GS350 2011 Owner's Manual

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GS_G_U (OM30C11U)
May 21, 2010 12:06 pm
4-1. Maintenance and careCleaning and protecting the vehicle exterior.................. 430
Cleaning and protecting the vehicle interior .................... 433
4-2. Maintenance Maintenance requirements............................... 436
General maintenance ............... 438
Emission inspection and maintenance (I/M)
programs ....................................... 441 4-3. Do-it-yourself maintenance
Do-it-yourself service precautions .................................. 442
Hood ................................................. 445
Positioning a floor jack............... 446
Engine compartment.................. 448
Tires ................................................... 463
Tire inflation pressure................. 473
Wheels ............................................. 477
Air conditioning filter.................. 479
Electronic key battery ................ 482
Checking and replacing fuses ................................................ 484
Headlight aim ............................... 509
Light bulbs ........................................ 512
5-1. Essential information Emergency flashers ................... 520
If your vehicle needs to be towed ................................... 521
If you think something is wrong ............................................ 530
Fuel pump shut off system ......... 531
Event data recorder.................... 532
4Maintenance and care
5When trouble arises

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GS_G_U (OM30C11U)
May 21, 2010 12:06 pm
3-2. Using the air conditioning system and defogger
Automatic air conditioning system
Airflow and outlets are automatically adjusted according to the tempera-
ture setting.
Press
to display the air conditioning operation screen.
The illustrations below are for vehicles with navigation system.
The display and button positions will di ffer depending on the type of the sys-
tem.
Automatic mode
Driver’s side
temperature display
Fan speed display
Off Airflow display
Air conditioning operation
screen display button
Passenger’s side
temperature
display
Micro dust and pollen filter
Driver’s side
temperature control
Air conditioning
ON/OFF switch
Outside air or recirculated mode
Windshield defogger Passenger’s side
temperature control
Dual operation switch

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3-2. Using the air conditioning system and defogger
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Interior features
GS_G_U (OM30C11U)
May 21, 2010 12:06 pm
Micro dust and pollen filterPress .
Outside air mode switches to (recirculated air) mode. Pol-
len is removed from the air and the
air flows to the upper part of the
body.
Usually the system will turn off
automatically approximately 3
minutes later.
To stop the operation, press
again.
Adjusting the sensitivity of the ai r intake control in automatic mode
Press until the smog sensor screen appears while the
vehicle is stopped. Touch any switch of “LO” to “HI”
(lower sensitivity ↔ higher sensi-
tivity) on the operating screen.
STEP1
STEP2

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3-2. Using the air conditioning system and defogger
3
Interior features
GS_G_U (OM30C11U)
May 21, 2010 12:06 pm
■Using the automatic mode
Fan speed is adjusted automatically in accordance with the temperature setting and
ambient conditions. As a result, the following may occur.
●Immediately after the switch is pressed, the fan may stop for a while until warm
or cool air is ready to flow.
●Cool air may flow to the area around the upper body when the heater is on.
■Using the system in recirculated air mode
The windows will fog up more easily if the recirculated air mode is used for an
extended period.
■Switching between outside air and recirculated air modes
Recirculated air mode or outside air mode may be automatically switched to in
accordance with the temperature setting and the inside temperature.
■Window defogger feature
Recirculated air mode may automatically switch to
(outside air) mode in situ-
ations where the windows need to be defogged.
■Outside temperature approaches 32 °F (0 °C)
The air conditioning system may not operate even when
“A / C ” is touched.
■Automatic mode for air intake control
In automatic mode, the system detects exhaust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
When the air conditioning is off, and the fan is operating, turning the auto mode on
will activate the air conditioning system.
■Micro dust and pollen filter
●In order to prevent the windows from fogging up when the outside air is cold,
the following may occur.
• Outside air mode does not switch to .
• The air conditioning system operates automatically.
• The operation cancels after 1 minute.
●In rainy weather, the windows may fog up. Press .

Maintenance and care4
429
GS_G_U (OM30C11U)
May 21, 2010 12:06 pm
4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 430
Cleaning and protecting the vehicle interior .............. 433 4-2. Maintenance
Maintenance requirements........................ 436
General maintenance .......... 438
Emission inspection and maintenance (I/M)
programs ................................ 441
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ........................... 442
Hood .......................................... 445
Positioning a floor jack ......... 446
Engine compartment ........... 448
Tires............................................ 463
Tire inflation pressure........... 473
Wheels ....................................... 477
Air conditioning filter ............ 479
Electronic key battery.......... 482
Checking and replacing fuses ........................................ 484
Headlight aim ......................... 509
Light bulbs................................. 512

444
4-3. Do-it-yourself maintenance
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
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
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the 12 volt battery.
Fuel and 12 volt battery fumes are flammable.
●Be extremely cautious when working on the 12 volt battery. It contains poisonous
and corrosive sulfuric acid.
■When working near the electric cooling fan or radiator grille
Be sure the “ENGINE START STOP” switch is OFF.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fan may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (→P. 4 5 7 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the 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. Also a backfire could cause a fire in the engine compartment.

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4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to main-
tain air conditioning efficiency.
■ Removal method
Set the air conditioning system to recirculated mode.
The air conditioning filter case cannot be removed with the system in
the outside air mode.
Turn the “ENGINE START STOP” switch to OFF.
Open the glove box and
remove the partition.
Remove the filter cover.
Press the tabs and remove the
filter case.
STEP1
STEP2
STEP3
STEP4
STEP5

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4-3. Do-it-yourself maintenance
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
■Cleaning method
If the filter is dirty, clean by blow-
ing compressed air through the
filter from the downward side.
Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at 73
psi (500 kPa, 5.1 kgf/cm
2 or
bar).
If it is not available, have the filter
cleaned by your Lexus dealer.
■ Replacement method
Remove the air conditioning fil-
ter from the filter case and
replace it with a new one.
The “↑UP” marks shown on the
filter and the filter case should
be pointing up.

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4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance sched-
ule. In dusty areas or areas with heavy traffic flow, early replacement may be
required. (For scheduled maintenance information, refer to the “Warranty and Ser-
vices Guide/Owner’s Manual Supplement/Scheduled Maintenance”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■To prevent damage to the system
●When using the air conditioning system, make sure that a filter is always installed.
●When cleaning the filter, do not clean the filter with water.

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4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U (OM30C11U)
October 28, 2011 5:15 pm
FuseAmpereCircuit
18VGRS40VGRS
19MAIN30H-LP R LWR and H-LP L LWR
20STARTER30Starting system
21LH J/B-B30FL DOOR, RL DOOR and RAD
NO.3
22VVT40Electronic engine control system
23EPS80EPS
24ALT180
RH J/B-AM, LH J/B-AM, E/G-AM,
RR JB, HEATER, DEFOG, FAN1,
FAN2, ABS2, ABS MOTOR,
ABS MAIN1, and ABS MAIN2
25RH J/B-AM80
AM1, OBD, STOP SW, TI & TE,
PWR OUTLET, FR P/SEAT RH,
STR LOCK, ECU-IG RH, RH-IG,
ACC, CIG, SECURITY,
FR S/HTR RH and AIR SUS
26FA N 380Electric cooling fans
27LH J/B-AM80
S/ROOF, P/SEAT, TV, FL S-HTR,
ECU-IG L, WIP, H-LP LVL, LH-IG,
FUEL OPN, A/C, PANEL, LH-B and
TRK OPN
28ABS230ABS
29DEFFOG50Rear window defogger, noise filter
30CDS40CDS