LEXUS RX450h 2015 Owners Manual

3513-2. Using the air conditio ning system and defogger
3
Interior features Using the 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.
■ Automatic mode indicator
If fan speed setting or air flow modes are operated, the automatic
mode indicator goes off. However, automatic mode for functions other
than that operated are maintained.
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 to
decrease the fan speed.
To turn the fan off, press .
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.STEP 1
STEP 2
STEP 1
STEP 2

3523-2. Using the air conditio ning system and defogger
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.
Air flows to the upper body and
feet.
Air flows to the feet.STEP 3

3533-2. Using the air conditio ning system and defogger
3
Interior features 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 (out-
side air mode) modes each time the button is pressed.
Defogging the windshield
Defogging 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.

3543-2. Using the air conditio ning system and defogger
Adjusting the position of and opening 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.
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.

3553-2. Using the air conditio ning system and defogger
3
Interior features ■
Operation of the air conditioning system in Eco drive mode
In Eco drive mode, the air conditioning syst em is controlled as follows to prioritize
fuel efficiency: ●
Engine speed and compressor operation controlled to restrict heating/cooling
capacity●
Fan speed restricted when automatic mode is selected
To improve air conditioning performanc e, perform the following operations:●
Adjust the fan speed●
Turn off Eco drive mode■
Customization
The air conditioning control of Eco drive mode can be changed to the same setting
as that used in normal drive mode.
(Customizable features  P. 825)■
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 repr oduced 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 accord ing to the temperature setting and ambi-
ent conditions. As a result, the following may occur:
Immediately after the button is pressed, the fan may stop for a while until warm or
cool air is ready to flow.■
Using the system in recirculated air mode
The windows will fog up more easily if 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 in accor-
dance with the temperature setting and the inside temperature.

3563-2. Using the air conditio ning system and defogger
■
When the outside temperature exceeds 75°F (24°C) and the air conditioning
system is on ●
In order to reduce the air conditioning power consumption, the air conditioning
system may switch to recirculated air mode automatically. This may also reduce
fuel consumption.●
Recirculated air mode is selected as a default mode when the “POWER” switch
is turned to ON mode.●
It is possible to switch to outside air mode at any time by pressing .■
Window defogger feature
Recirculated air mode may automatically switch to outside air mode in situations
where the windows need to be defogged.■
When outside air temperature is below 32  F (0  C)
The cooling and dehumidification fu nction may not operate even when
is
pressed.■
When the indicator light on goes off
Press to turn on the cooling and dehumi dification function again. There may
be a problem in the air conditioning system if the indicator light goes off again
shortly after the button is pressed. Have it inspected by your Lexus dealer.■
Ventilation and air conditioning odors ●
To let fresh air in, set the air conditioning system to the outside air mode.●
During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning sy stem. This may then cause odor to be
emitted from the vents.●
To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time
immediately after the air conditioning system is started in automatic mode.

3573-2. Using the air conditio ning system and defogger
3
Interior features CAUTION■
To prevent the windshield from fogging up
Do not use
during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outs ide air and that of the windshield can
cause the outer surface of the windshield to fog up, blocking your vision.
NOTICE■
To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid
system is off.

3583-2. Using the air conditio ning system and defogger
Rear window defogger switch Defoggers are used to defog the rear window, and to remove raindrops,
dew and frost from the outside rear view mirrors.
Vehicles with a navigation system
Owners of models equi pped with a navigation system should refer to
the “Navigation System Owner’s Manual”.
Vehicles with the Lexus Display Audio system
Turns the rear window and out-
side rear view mirror defoggers
on/off The defoggers will automatically
turn off after 15 to 60 minutes.
The operation time changes
according to the ambient tem-
perature and vehicle speed.
Vehicles without a navigation sy stem or the Lexus Display Audio
system
Turns the rear window and out-
side rear view mirror defoggers
on/off The defoggers will automatically
turn off after 15 to 60 minutes.
The operation time changes
according to the ambient tem-
perature and vehicle speed.

3593-2. Using the air conditio ning system and defogger
3
Interior features ■
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.

3603-2. Using the air conditio ning system and defogger
Windshield wiper de-icer 
 : If equippedThis feature is used to prevent ice fr om building up on the windshield and
wiper blades.
Vehicles with a navigation system
Owners of models equi pped with a navigation system should refer to
the “Navigation System Owner’s Manual”.
Vehicles with the Lexus Display Audio system
Display the air condition ing operation screen. (  P. 3 4 2 )
Select to the wind-
shield wiper de-icer on/off The windshield wiper de-icer
will automatically turn off after
approximately 15 minutes.
Vehicles without a navigation sy stem or the Lexus Display Audio
system
Turns the windshield wiper de-
icer on/off The windshield wiper de-icer
will automatically turn off after
approximately 15 minutes.STEP 1
STEP 2