air conditioning Lexus HS250h 2010 User Guide

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3-1. Using the air conditioning system and defogger
Automatic air conditioning system
Air outlets and fan speed are automatically adjusted according to the tem-
perature setting.
Vehicles with a navigation system
Owners of models equipped with a navigation system should refer to
the “Navigation System Owner’s Manual”.
Vehicles without a navigation system
Automatic
mode button
Driver’s side
temperature display
Dual
mode
button
Fan speed control buttons Air outlet display
Fan speed display
Passenger’s side
temperature display
Driver’s side
temperature
control buttons Outside/recirculated air
mode buttonWindshield
defogger button Passenger’s side
temperature
control buttons
Micro dust
and pollen
filter mode
button
“OFF” button Air outlet selector button
Cooling and
dehumidification
function on/off
button

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HS250h_U_75033U(Canada)
Using automatic air conditioning system
Press .
The air conditioning system begins to operate. Air outlets and fan
speed are automatically adjusted according to the temperature
setting.
Press “∧” on to increase the temperature and “ ∨” to
decrease the temperature.
When is pressed (the indicator on is on) or the passen-
ger’s side temperature control button is pressed, the temperature for
the driver and passenger seats can be adjusted separately.

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HS250h_U_75033U(Canada)
Adjusting the settings manually■ Basic setting
To turn on the air conditioning system and adjust the fan speed,
press “ ∧” on to increase the fan speed and “∨ ” on to
decrease the fan speed.
Press to turn the fan off.
To adjust the temperature setting, press “ ∧” on to increase
the temperature and “ ∨” to decrease the temperature.
When is pressed (the indicator on is on) or the passen-
ger’s side temperature control button is pressed, the temperature for
the driver and passenger seats can be adjusted separately.
To change the air outlets, press .
The air outlets used are switched each time the button is pressed. The
air flow shown on the display indicates the following:
Air flows to the upper body.

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HS250h_U_75033U(Canada) Air flows to the upper body and
feet.
Air flows to the feet.
Air flows to the feet and the wind-
shield defogger operates.
■ Switching between outside air and recirculated air modes
Press .
The mode switches between (recirculated air mode) and
(outside air mode) modes each time the button is pressed.

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HS250h_U_75033U(Canada)
Defogging the windshieldDefogging
The air conditioning system oper-
ates automatically.
Recirculated air mode will auto-
matically switch to outside air
mode. It is not possible to return to
recirculated air mode when the
switch is on.
Micro dust and pollen filter mode button
Operates micro dust and pollen fil-
ter 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
automatically after approximately
3 minutes.
Adjusting the position of and op ening and closing the air outlets
Front center outlets Direct air flow to the left or right,
up or down.
Turn the knob to open or close
the vent.

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HS250h_U_75033U(Canada)Front side outlets
Direct air flow to the left or right,
up or down.
Turn the knob to open or close
the vent.
Rear outlets Direct air flow to the left or right,
up or down.
Turn the knob to open or close
the vent.
■Air conditioning system settings
When the “POWER” switch is turned on, the air conditioning system settings will be
set to those that were in use the last time the “POWER” switch was turned off.
●Air conditioning system settings are memorized individually on each electronic
key, so the settings reproduced will be specific to the key that is used.
●This feature is customizable at your Lexus dealer.
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and ambi-
ent conditions. As a result, the following may occur:
●The system may switch automatically to recirculated air mode when the coolest
temperature setting is selected when the ambient temperature is high.
●Immediately after the button 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.

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HS250h_U_75033U(Canada)
■Using the system in recirculated air mode
The windows will fog up more easily if recirculated air mode is used.
■Window defogger feature
Recirculated air mode may automatically switch to (outside air) mode in sit-
uations where the windows need to be defogged.
■When micro dust and pollen filter is active
●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 air conditioning system operates automatically.
• The operation cancels after 1 minute.
●In rainy weather, the windows may fog up. Press .
■When outside air temperature is below 32°F (0 °C)
The cooling and dehumidification function may not operate even when
is
pressed.
CAUTION
■To prevent the windshield from fogging up
Do not use
during cool air operation in extremely humid weather. The dif-
ference between the temperature of the outside air and that of the windshield can
cause the outer surface of the windshield to fog up, blocking your vision.

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NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid
system is off.

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Rear window defogger switch
■Operating conditions
The “POWER” switch is in ON mode.
■The outside rear view mirror defoggers
Turning the rear window defogger on will turn the outside rear view mirror defog-
gers on.
CAUTION
■When the outside rear view mirror defoggers are on
Do not touch the outside surface of the rear view mirrors, as they can become very
hot and burn you.
Defoggers are used to defog the rear window, and to remove raindrops,
dew and frost from the outside rear view mirrors.
Turns the rear window and out-
side rear view mirror defoggers
on/off
The defoggers will automatically
turn off after 15 minutes.

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Windshield wiper de-icer∗
∗: If equipped
■Operating conditions
The “POWER” switch is in ON mode.
CAUTION
■When the windshield wiper de-icer is on
Do not touch the lower part of the windshield or the side of the front pillars, as the
surfaces can become very hot and burn you.
This feature is used to prevent ice from building up on the windshield and
wiper blades.
Turns the windshield wiper de-
icer on/off
The windshield wiper de-icer
will automatically turn off after
approximately 15 minutes.