2005 Lexus IS300 Speed

AIR CONDITIONING
195
If manual fan speed control is desired ±
SV21023

1Fan speed at low 2Fan speed at high
The fan speed can be set to your desired speed by turning the
fan speed control dial. The higher the fan speed is, the more
air is delivered. Turning the dial to ªOFFº turns off the fan.
To remove exterior windshield frost, use the high speed
setting.
If manual switching of air intake is desired ±
SV21024a
The air intake control button is used to switch the air intake
between the OUTSIDE AIR mode and RECIRCULATED AIR
mode.
With the button in the OUTSIDE AIR mode, the OUTSIDE AIR
mode ind
icator light will come on and the system will take fresh
outside air into the vehicle.
If quick circulation of cooled air is desired, push the air intake
control button for RECIRCULATED AIR. The
RECIRCULATED AIR mode indicator light will come on.
For normal use, it is best to keep the air intake control button
set to OUTSIDE AIR mode. If recirculated air is used during
heating, the windows will fog up more easily.
When you adjust the airflow control dial and the fan speed
control dial to ªAUTOº positions in case that the room
temperature is much higher than the set temperature, the air
intake mode will be automatically changed to
RECIRCULATED AIR.
04 06.30

AIR CONDITIONING
196However, once selecting ªRECIRCULATED AIRº of the air
intake manually will make this function inoperable. In order to
make this function operable again, first select ªOUTSIDE AIRº
of the air intake, turn off the ignition switch, and start the engine
again. Then this function return to be operable.
If manual on±off of the air conditioning is desired ±
Push the ªA/Cº button to turn the air conditioning on and push
it again to turn the air conditioning off.
The air conditioning does not work if the outside temperature
is lowered down to around 0C (32F).
If the system is used for ventilation, heating in dry weather or
removing frost or exterior fog on the windshield, turn the air
conditioning off once it is no longer required. This will improve
fuel economy. The air conditioning can be used for year±round
automatic temperature control including cooling and
dehumidifying operation.
If the air conditioning compressor does not operate, the
indicator of the ªA/Cº button will blink. If the indicator of the
ªA/Cº button blinks even when the ªA/Cº button is pushed
again, have the compressor checked by your nearest Lexus
dealer.
(b) Windshield defogging and defrosting
SV21016
To remove interior fog on the windshield ±
1. Turn the air flow control dial to ªWINDSHIELDº.
2. Set the ªOUTSIDE AIRº mode.
To remove frost or exterior fog on the windshield ±
1. Turn the temperature control dial to the maximum
temperature.
2. Turn the air flow control dial to ªWINDSHIELDº.
3. Turn the fan speed control dial to ªHIº.
4. Leave the air conditioning on±off button off.
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AIR CONDITIONING
199
SV21015
2. Remove the cover and take out the air filter
If it is dirty, it should be replaced.
INFORMATION
The air filter should be installed properly in position.The use of air conditioning with the air filter removedmay cause deteriorated dustproof performance andthen affect air conditioning performance.
(d) Operating tips
 To help cool down the interior after parking in the hot sun,
drive for the first few minutes with the windows open. After the excess heat has blown away, close the windows.
 Make sure the air inlet grilles in front of the windshield are
not blocked by leaves or other obstructions.
 If air flow control is not satisfactory, check the dashboard
vents. (See ªCenter ventsº and ªSide ventsº.)
 On humid days, do not blow cold air on the windshield. The
windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.
 Keep the area under the front seats clear to allow air to
circulate throughout the vehicle.
 On cold days, set the fan speed selector to adjust the fan
speed high for a minute to help clear the intake ducts of
snow or moisture. This can reduce the amount of fogging on
the windows.
 When driving on dusty roads, close all windows. If dust
thrown up by the vehicle is still drawn into the vehicle after
closing the windows, it is recommended that the air intake
control button be left to the OUTSIDE AIR mode and the fan
speed control dial be turned to anywhere except the ªOFFº button.
 If following another vehicle on a dusty road, or driving in
windy and dusty conditions, it is recommended that the air
intake control button be temporarily pressed in to the
RECIRCULATED AIR mode, which will close off the outside
passage and prevent outside air and dust from entering the vehicle interior.
04 06.30

AIR CONDITIONING
200Heating
For best results, set controls to:
For automatic operation ±
Set the air flow control dial and the fan speed control
dial to ªAUTOº position.
Temperature ± To the desired temperature
Air intake ± OUTSIDE AIR
For manual operation ±Fan speed ± To the desired fan speed
Temperature ± Towards WARM (to the right)
Air intake ± OUTSIDE AIR
Air flow ± FLOOR
 For quick heating, select RECIRCULATED AIR for a few
minutes. To keep the windows from fogging, select OUTSIDE AIR after the vehicle interior has been warmed.
 Push the ªA/Cº button on for dehumidified heating.
 Choose floor/windshield air flow to heat the vehicle interior
while defrosting or defogging the windshield. Air conditioning
For best results, set controls to:
For automatic operation ±
Set the air flow control dial and the fan speed control
dial to ªAUTOº position.
Temperature ± To the desired temperature
Air intake ± OUTSIDE AIR
For manual operation ±Fan speed ± To the desired fan speed
Temperature ± Towards COLD (to the left)
Air intake ± OUTSIDE AIR
Air flow ± PANEL
 For quick cooling, select RECIRCULATED AIR for a few
minutes.
Ventilation
For best results, set controls to:
For automatic operation ±
Set the air flow control dial and the fan speed control
dial to ªAUTOº position.
Temperature ± Towards low temperature
Air intake ± OUTSIDE AIR
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AIR CONDITIONING
201
For manual operation ±
Fan speed ± To the desired fan speed
Temperature ± Towards COLD (to the left)
Air intake ± OUTSIDE AIR
Air flow ± PANEL
Defogging and defrosting
± The inside of the windshield
For best results, set controls to:
For automatic operation ±
Temperature ± Towards high temperature to heat; low temperature to cool
Air intake ± OUTSIDE AIR
AIR FLOW ± WINDSHIELD
For manual operation ±
Fan speed ± To the desired fan speed
Temperature ± Towards WARM (to the right) to heat;
COLD (to the left) to cool
Air intake ± OUTSIDE AIR
Air flow ± WINDSHIELD
Set the air flow control dial to the windshield or floor/windshield
position turns on the defogging function with the purpose of
clearing the front view. When turning the air flow selector to windshield position, the
air intake selects FRESH automatically. This is to clean up the
front view more quickly.
If you want to return the setting to RECIRCULATE mode, press
the air intake selector button once again.
Press
the ªA/Cº button for dehumidified heating or cooling. This
setting clears the front view more quickly.
 On humid days, do not blow cold air on the windshield ± the
difference between the outside and inside temperatures could make the fogging worse.
± The outside of the windshield
For best results, set controls to:
For automatic operation ±
Temperature ± Towards high temperature
Air intake ± OUTSIDE AIR
Air flow ± WINDSHIELD
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AIR CONDITIONING
202For manual operation ±
Fan speed ± To the desired fan speed
Temperature ± Towards WARM (to the right)
Air intake ± OUTSIDE AIR
Air flow ± WINDSHIELD
Set the air flow control dial to the windshield or floor/windshield
position turns on the defrosting function with the purpose of
clearing the front view.
When turning the air flow selector to windshield position, the
air intake selects FRESH automatically. This is to clean up the
front view more quickly.
If you want to return the setting to RECIRCULATE mode, press
the air intake selector button once again.
Press the ªA/Cº button for dehumidified heating or cooling. This
setting clears the front view more quickly.
 To heat the vehicle interior while defrosting the windshield,
choose floor/windshield air flow.
Center vents
SV21031
The center vents may be opened or closed as shown.
Side vents
SS21019
The side vents may be opened or closed as shown.
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AUDIO
227
Caring for your cassette player and tapes
For the best performance for your cassette player and tapes:
Clean the tape head and other parts regularly.

A dirty tape head or tape path can decrease sound quality
and tangle your cassette tapes. The easiest way to clean
them is by using a cleaning tape. (A wet type is recommended.)
Use high±quality cassettes:
 Low±quality cassette tapes can cause many problems,
including poor sound, inconsistent playing speed, and
constant auto±reversing. They can also get stuck or tangled
in the cassette player.
 Do not use a cassette if it has been damaged or tangled or
if its label is peeling off.
 Do not leave a cassette in the player if you are not listening
to it, especially if it is hot outside.
 Store cassettes in their cases and out of direct sunlight.
 Avoid using cassettes with a total playing time longer than
100 minutes (50 minutes per side). The tape used in these
cassettes is thin and could get stuck or tangled in the cassette player. Caring for your CD player and CDs

Your CD player is intended for use with 12 cm (4.7 in.) CDs
only.
 Extremely high temperature can keep your CD player from
working. On hot days, use air conditioning to cool the vehicle interior before you listen to a CD.
 Bumpy roads or other vibrations may make your CD player
skip.
 If moisture gets into your CD player, you may not hear any
sound even though your CD player appears to be working.
Eject all CDs from the player and wait until the player dries.
CAUTION
CD players use an invisible laser beam which could
cause hazardous radiation exposure if directed outside
the unit. Be sure to operate the player correctly.
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STARTING AND DRIVING
232
THREE±WAY CATALYTICCONVERTER
SV31040
Three±way catalytic converters are emission control
devices installed in the exhaust system.
It looks somewhat like a muffler, but its purpose is to reduce
pollutants in the exhaust gas.
CAUTION
Keep people and combustible materials away from
the exhaust pipe while the engine is running. The
exhaust gas is very hot.
 Do not drive, idle or park your vehicle over anything
that might burn easily such as grass, leaves, paper or
rags.
NOTICE
A large amount of unburned gases flowing into the three±way catalytic converter may cause it to overheatand create a fire hazard. To prevent this and otherdamage, observe the following precautions:
Use only unleaded gasoline.
Do not drive with an extremely low fuel level; runningout of fuel could cause the engine to misfire, creatingan excessive load on the three±way catalyticconverter.
Do not allow the engine to run at idle speed for morethan 20 minutes.
Avoid racing the engine.
Do not push±start or pull±start your vehicle.
Do not turn off the ignition while the vehicle ismoving.
Keep your engine in good running order.Malfunctions in the engine electrical system,electronic ignition system or fuel system could cause
an extremely high three±way catalytic converter temperature.
If the engine becomes difficult to start or stallsfrequently, take your vehicle in for a check±up assoon as possible. Remember, your Lexus dealer
knows your vehicle and its three±way catalyticconverter system best.
04 06.30