air filter Lexus IS250 2008 Using the air conditioning system and defogger / LEXUS 2008 IS250 OWNER'S MANUAL (OM53699U)

TABLE OF CONTENTSIndex
4
3-4. Using the storage features .... 236List of storage fe atures............... 236
• Glove box..................................... 236
• Console boxes ........................... 237
• Overhead console................... 238
• Cup holders................................. 239
• Bottle holders/ door pockets ................................ 241
3-5. Other interior features........... 242 Sun visors......................................... 242
Vanity mirror .................................. 243
Clock ................................................. 244
Satellite switches .......................... 245
Ashtrays .......................................... 248
Cigarette lighter ........................... 249
Power outlet .................................. 250
Seat heaters ..................................... 251
Seat heaters and ventilators .... 253
Armrest ............................................ 255
Rear sunshade ............................... 256
Trunk storage extension........... 258
Coat hooks ..................................... 259
Floor mat......................................... 260
Trunk features................................. 261
Garage door opener .................. 264
Compass.......................................... 269 4-1. Maintenance and care............ 274
Cleaning and protecting the vehicle exterior................... 274
Cleaning and protecting the vehicle interior .................... 277
4-2. Maintenance............................. 280 Maintenance requir ements .... 280
General maintena nce ................ 282
Emission inspection and maintenance (I/M)
programs ..................................... 285
4-3. Do-it-yourself maintenance............................ 286
Do-it-yourself service precautions .................................. 286
Hood................................................. 289
Positioning a floor jack.............. 290
Engine compartment.................. 292
Tires .................................................. 306
Tire inflation pressure.................. 316
Wheels............................................. 320
Air conditioning filter.................. 322
Electronic key battery ................ 325
Checking and replacing fuses ................................................ 327
Headlight aim.................................. 341
Light bulbs ....................................... 342
4Maintenance and care

192
3-1. Using the air conditioning system and defogger
Automatic air conditioning system
Using the automatic mode
Press .The air conditioning system will begin to operate. Air outlets
and fan speed are automatically adjusted according to the
temperature setting.
Press to switch to automatic mode. (IS350 only) Automatically switches between outside air and recirculated
air modes.
Airflow and outlets are automatically adjusted according to the tempera-
ture setting.
With navigation system
Owners of models equipped with a navigation system should refer to the
“Navigation System Owner's Manual”.
Without navigation system
Automatic mode
Driver’s side temperature
setting display Changes the air outlets used
Off Fan speed
Airflow display
Fan speed display
Passenger’s side temperature
setting displayMicro dust and
pollen filter
Driver's side temperature
control Air conditioning on/off switch Outside air or recirculated modeFront windshield defoggerPassenger’s side
temperature control
Dual operation switch
STEP1
STEP2

196
3-1. Using the air conditioning system and defogger
Micro dust and pollen filter
Press .
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.
To stop the operation, press again.
Adjusting the sensitivity of the air intake control in automatic mode (IS350 only)
Press for 2 or more sec-
onds.
Press  (increase) or  (decrease)
on .
From —3 (low) to 3 (high) can be
set.
STEP1
STEP2

198
3-1. Using the air conditioning system and defogger
■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.
●The system may switch automatically to recirculated mode when the coolest
temperature setting is selected in summer.
●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.
■Window defogger feature
Recirculated air mode may automatically switch to
(outside air) mode in situ-
ations where the windows need to be defogged.
■When outside air temperature approaches 32 F (0C)
The air conditioning system may not operate even when is pressed.
■When the indicator light on flashes
Press and turn off the air conditioning system before turning it on once
more. There may be a problem in the air conditioning system if the indicator light
continues to flash. Turn the air conditioning system off and have it inspected by your
Lexus dealer.
■Automatic mode for air intake control (IS350 only)
In automatic mode, the system detects exhaust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
■Micro dust and pollen filter
●In order to prevent the window from fogg ing up when the outside air is cold, the
following may occur.
• Outside air mode does not switch to .
• The air conditioning syst em operates automatically.
• The operation cancels after 1 minute.
●In rainy weather, the windows may fog up. Press .

Maintenance and care4
273
4-1. Maintenance and care ............................... 274
Cleaning and protecting the vehicle exterior.............. 274
Cleaning and protecting the vehicle interior .............. 277
4-2. Maintenance .................. 280 Maintenance requirements ....................... 280
General maintenance ......... 282
Emission inspection and maintenance (I/M)
programs............................... 285
4-3. Do-it-yourself maintenance ................ 286
Do-it-yourself service precautions ........................... 286
Hood ......................................... 289
Positioning a floor jack ......... 290
Engine compartment............ 292
Tires ............................................ 306
Tire inflation pressure ............ 316 Wheels ...................................... 320
Air conditioning filter ........... 322
Electronic key battery.......... 325
Checking and replacing
fuses ........................................ 327
Headlight aim .......................... 341
Light bulbs ................................ 342

288
4-3. Do-it-yourself maintenance
CAUTION
■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. 3 0 1 )
■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:
Driving with the air filter removed may cau se excessive engine wear due to dirt in
the air. Also a backfire could cause a fire in the engine compartment.

322
4-3. Do-it-yourself maintenance
Air conditioning filter
The air conditioning filter must be cleaned or changed regularly to main-
tain air conditioning efficiency.
■ Removal method
Set the air conditio ning 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 OFF.
Open the glove box. Lift and
remove the partition.
Remove the filter cover.
Remove the filter case.
STEP1
STEP2
STEP3
STEP4
STEP5

323
4-3. Do-it-yourself maintenance
4
Maintenance and care
■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, please refer to the “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.
■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
72 psi (500 kPa, 5.0 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.

324
4-3. Do-it-yourself maintenance
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.

450
Alphabetical index
Alphabetical index
A/C ............................................................. 192
ABS.............................................................. 170
AFS .............................................................. 144
Adaptive front lighting system ......... 144
Air conditioning filter .......................... 322
Air conditioning systemAir conditioning filter ....................... 322
Automatic air conditioning system .................................................... 192
Airbags Airbag operating conditions.............81
Airbag precautions for your child.......................................................... 85
Airbag warning light ..........................361
Curtain shield airbag operating
conditions.............................................. 82
Curtain shield airbag precautions .......................................... 85
Front passenger occupant classification system......................... 90
General airbag precautions ........... 85
Locations of airbags............................ 79
Modification and disposal of airbags .................................................... 89
Proper driving po sture ............. 77, 85
Side airbag operating conditions.............................................. 82
Side airbag precautions .................... 85
SRS airbags ............................................. 79 Alarm .............................................................74
Antenna ....................................................208
Anti-lock brake system ........................170
Armrest .................................................... 255
Ashtrays.................................................... 248
Audio input.............................................. 228
Audio system
Antenna.................................................. 208
Audio input ........................................... 228
AUX adapter ...................................... 228
CD player/changer ............................. 211
MP3/WMA disc..................................217
Optimal use ..........................................225
Portable music player ..................... 228
Radio ....................................................... 204
Steering wheel audio switch.........229
Automatic air conditioning system ......................................................192
Automatic headlight leveling system ......................................................145
Automatic light control system.........143
Automatic transmission Automatic transmission ....................122
If the shift lever cannot be shifted from P....................................392
S mode ..................................................... 124
AUX adapter ......................................... 228A