air intake Lexus ES330 2006 Repair Manual Information / OWNER'S MANUAL (OM33703U)

AIR CONDITIONING
clxxxviThe automatic air conditioning automatically maintains
the set temperature.
In the automatic operation mode, the air conditioning selects
the most suitable fan speed, air flow, air intake and on−
off the
air conditioning according to the temperature.
The ignition key must be in the “ON” position.
NOTICE
To prevent the battery from being discharged, do not
leave the air conditioning on longer than necessary
when the engine is not running.
1“TEMP” (driver side temperature control) button
2Driver side temperature display (in degrees
Fahrenheit or Centigrade)
3Fan speed display
4Outside temperature display
5Air flow display
6Passenger side temperature display (in degrees
Fahrenheit or Centigrade)
7“PASSENGER TEMP” (passenger side temperature
control) button
8“DUAL” (temperature setting mode change) button
9Windshield air flow button
10“MODE”(air flow control) button
11Air intake control button
12Fan speed control button
13“OFF” button
14“AUTO” button
15“A/C” button

AIR CONDITIONING
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(a) Climate control
SETTING OPERATION — automatic control
1. Push the “AUTO” button.
An indicator light will illuminate to show that the automatic
operation mode has been selected.
Air flow quantity, switching of the diffusers, on−off of the air
conditioning and switching of the air intake between
RECIRCULATED AIR and OUTSIDE AIR are automatically
adjusted. The operation status is shown by each indicator.
When one of the manual control buttons is depressed while
operating in automatic mode, the operation corresponding to
the button depressed is set. Other conditions continue to be
adjusted automatically.
Push the “OFF” button to turn the air conditioning system off.
2. Use the “TEMP” or “PASSENGER TEMP” button to set
the desired temperature.
The “TEMP” or “PASSENGER TEMP” button is used to set the
desired temperature. The temperature will be controlled on the
driver and passenger sides simultaneously or individually.
“TEMP” button — Changes the temperature on the driver and
passenger sides simultaneously or the driver side only.
“PASSENGER TEMP” button — Changes the temperature
settings separate from the driver side.
“DUAL” button — Changes the mode of the temperature
setting.
The indicator on the “DUAL” button has two modes:
 With the indicator on — For individual temperature setting
 With the indicator off — For simultaneous temperature
setting

AIR CONDITIONING
cxcThis position allows the air intake to select OUTSIDE AIR
mode automatically. This is to clean up the front view more
quickly.
If you want to return the setting to RECIRCULATED AIR mode,
push the air intake control button once again.
Push
the “A/C” button for dehumidified heating or cooling. This
setting clears the front view more quickly.
If quick heating or cooling is desired —
Push the “TEMP” or “PASSENGER TEMP” button on either
side and hold it until “MAX. HOT” or “MAX. COLD” appears on
the display. If manual fan speed control is desired —
1Fan speed at low2Fan speed at high
The fan speed can be set to your desired speed by pushing the
appropriate side of fan speed control button. The higher the fan
speed is, the more air is delivered. Pushing the “OFF” button
turns off the fan.
To remove exterior windshield frost, use the high speed setting.

AIR CONDITIONING
cxci
If manual switching of air intake is desired —
The air intake control button is used to switch the air intake
between the OUTSIDE AIR mode and RECIRCULATED AIR
mode.
To turn the air source to the RECIRCULATED AIR mode, press
the button. The indicator will come on. To turn the air source
to OUTSIDE AIR mode, press the button again. The indicator
will go off.
To prevent fogging up of the windshield, the air intake mode
may change automatically to the OUTSIDE AIR mode
depending on the condition of the air conditioning system.
For example, when the ambient temperature is low, the air
intake mode may change automatically to the OUTSIDE AIR
mode. This is not a malfunction.
If quick circulation of cooled air is desired, push the air intake
control
button for RECIRCULATED AIR. The 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.
If manual onoff of the air conditioning is desired —
Push the “A/C” 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 0 C (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 “A/C” button will blink. If the indicator of the
“A/C” button blinks even when the “A/C” button is pushed
again, have the compressor checked by your nearest Lexus
dealer.
Displaying the outside temperature —
The temperature display ranges from −30C (−22F) up to
50 C (122 F).

AIR CONDITIONING
cxcii
(b) Windshield defogging and defrosting
To remove interior fog on the windshield —
Push the windshield air flow button.
To remove frost or exterior fog on the windshield —
1. Push the “TEMP” button to set the maximum temperature.
2. Push the windshield air flow button.
3. Push the fan speed control button on the right side to obtain
a maximum air flow.
4. Leave the “A/C” button off.
When the windshield air flow button is pushed, air flows mainly
from the windshield vents and turns on the defogging function
with the purpose of clearing the front view.
Pushing this button once again returns the air flow mode to the
last one used. This
button allows the air intake to select OUTSIDE AIR mode
automatically. This is to clean up the front view more quickly.
It is not possible to return to RECIRCULATED AIR mode in the
windshield air flow mode.
Push the “A/C” button for dehumidified heating or cooling. This
setting clears the front view more quickly.
CAUTION
Do not use the windshield air flow button during cooled
air operation in extremely humid weather. The
difference between the temperature of the outside air
and that of the windshield could cause the outer surface
of the windshield to fog up blocking your vision.

AIR CONDITIONING
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(c) 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 side vents and
rear vents. (See “(d) Side vents and rear vents”.)
 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 to 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
be set to the OUTSIDE AIR mode and the fan speed to any
setting except “OFF”. 
If following another vehicle on a dusty road, or driving in
windy and dusty conditions, it is recommended that the air
intake be temporarily set to the RECIRCULATED AIR
mode, which will close off the outside passage and prevent
outside air and dust from entering the vehicle interior.
Heating
For best results, set controls to:
For automatic operation —
Push in the “AUTO” button.
Temperature — To the desired temperature
Air intake — OUTSIDE AIR
Air conditioning — OFF
For manual operation —Fan speed — To the desired fan speed
Temperature — Towards high temperature
Air intake — OUTSIDE AIR
Air flow — FLOOR
Air conditioning — OFF
 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 “A/C” button on for dehumidified heating.
 Choose floor/windshield air flow to heat the vehicle interior
while defrosting or defogging the windshield.

AIR CONDITIONING
cxcivAir conditioning
For best results, set controls to:
For automatic operation —
Push in the “AUTO” button.
Temperature — To the desired temperature
Air intake — OUTSIDE AIR
Air conditioning — ON
For manual operation —Fan speed — To the desired fan speed
Temperature — Towards low temperature
Air intake — OUTSIDE AIR
Air flow — PANEL
Air conditioning — ON
 For quick cooling, select RECIRCULATED AIR for a few
minutes.
Ventilation
For best results, set controls to:
For automatic operation —
Push in the “AUTO” button.
Temperature — Towards low temperature
Air intake — OUTSIDE AIR
Air conditioning — OFF
For manual operation —Fan speed — To the desired fan speed
Temperature — Towards low temperature
Air intake — OUTSIDE AIR
Air flow — PANEL
Air conditioning — OFF
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 high temperature to heat;
low temperature to cool
Air intake — OUTSIDE AIR
Air flow — WINDSHIELD
When the windshield air flow button is pushed, air flows mainly
from the windshield vents and turns on the defogging function
with the purpose of clearing the front view.
Pushing this button once again returns the air flow mode to the
last one used.

AIR CONDITIONING
cxcv
This
button allows the air intake to select OUTSIDE AIR mode
automatically. This is to clean up the front view more quickly.
It is not possible to return to RECIRCULATED AIR mode in the
windshield air flow mode.
Push the “A/C” 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
For manual operation —
Fan speed — To the desired fan speed
Temperature — Towards high temperature
Air intake — OUTSIDE AIR
Air flow — WINDSHIELD
When the windshield air flow button is pushed, air flows mainly
from the windshield vents and turns on the defogging function
with the purpose of clearing the front view.
Pushing this button once again returns the air flow mode to the
last one used.
This button allows the air intake to select OUTSIDE AIR mode
automatically. This is to clean up the front view more quickly.
It is not possible to return to RECIRCULATED AIR mode in the
windshield air flow mode.
Push the “A/C” 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.

ENGINE
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FUEL PUMP SHUT OFF SYSTEM
The fuel pump shut off system stops supplying fuel to the
engine to minimize the risk of fuel leakage when the engine
stalls or an airbag inflates upon collision. To restart the engine
after the fuel pump shut off system activates, turn the ignition
switch to “ACC” or “LOCK” once and start it.
CAUTION
Inspect the ground under the vehicle before restarting
the engine. If you find that liquid has leaked onto the
ground, it is the fuel system has been damaged and it is
in need of repair. In this case, do not restart the engine.
FACTS ABOUT ENGINE OILCONSUMPTION
Functions of engine oil
Engine oil has the primary function of lubricating and cooling
the inside of the engine, and plays a major role in maintaining
the engine in proper working order.
Engine oil consumption
It is normal that an engine should consume some engine
oil during normal engine operation. The causes of oil
consumption in a normal engine are as follows.
Oil is used to lubricate pistons, piston rings and cylinders.
A thin film of oil is left on the cylinder wall when a piston
moves downwards in the cylinder. High negative pressure
generated when the vehicle is decelerating sucks some of
this oil into the combustion chamber. This oil as well as
some part of the oil film left on the cylinder wall is burned by
the high temperature combustion gases during the
combustion process.
 Oil is also used to lubricate the stems of the intake valves.
Some of this oil is sucked into the combustion chamber
together with the intake air and is burned along with the fuel.
High temperature exhaust gases also burn the oil used to
lubricate the exhaust valve stems.