air conditioning LEXUS RX450h 2015 Owner's Manual

3493-2. Using the air conditio ning system and defogger
3
Interior features ■
When outside air temperature is below 32  F (0  C)
The cooling and dehumidification function may not operate even when
is
on.■
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.
CAUTION■
To prevent the windshield from fogging up
Do not use
during cool air operation in ex tremely 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.
NOTICE■
To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid
system is off.

3503-2. Using the air conditio ning system and defogger
Automatic air conditioning system (without a navigation system or the Lexus Display Audio system)Air outlets and fan speed are automati cally adjusted according to the tem-
perature setting.
Automatic
mode
buttonDriver’s side temperature
display
Air outlet selector buttonFan speed
control
button Air outlet display Fan speed display
Passenger’s side temperature
display
Driver's side temperature
control buttons
Cooling and dehumidification function
on/off button
Outside/recirculated air mode buttonWindshield defogger
button Passenger’s side temperature control buttons Dual mode
button “OFF”
button

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

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.

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.

4323-3. Using the Lexus Display Audio system
●
In the following circumstances, it may be difficult to hear the other party:
• When driving on unpaved roads
• When driving at high speeds
• If a window is open
• If the air conditioning is blowing directly on the microphone
• There is an effect from the network of the mobile phone■
Conditions under which the system will not operate ●
If using a mobile phone that does not support Bluetooth ®
●
If the mobile phone is turned off●
If you are outside service range●
If the mobile phon e is not connected●
If the mobile phone’s battery is low●
When outgoing is controlled, due to heavy traffic on telephone lines, etc.●
When the mobile phone itself cannot be used●
When transferring the phonebook data from the mobile phone■
Bluetooth ®
antenna
The antenna is built into the display. If the mobile phone is behind the seat or in the
console box, or touching or covered by metal objects, connection status may dete-
riorate.■
Battery charge/Signal status ●
This display may not correspond exactly with the mobile phone itself.●
This system does not have a charging function.●
The Bluetooth ®
phone battery will burn quickly when it is connected to
Bluetooth ®
.●
When the mobile phone is not connected, “No Connect” is displayed.●
When you are out of service area or in a place inaccessible by radio waves, “No
service” is displayed.
■
When using Bluetooth ®
audio and hands-free system at the same time
The following problems may occur.
●
The Bluetooth ®
connection may be cut.
●
Noise may be heard on the Bluetooth ®
audio playback.

5273-4. Using the audio system
3
Interior features ■
When using a voice command
For numbers, say a combination of si ngle digits from zero to nine.
Say the command correctly and clearly.■
Situations in which the system may not recognize your voice ●
When driving on rough roads●
When driving at high speeds●
When air is blowing out of the vents onto the microphone●
When the air conditioning fan emits a loud noise■
Operations that cannot be performed while driving●
Operating the system using ●
Registering a portable player to the system■
Changing the passkey
 P. 5 3 6

5483-4. Using the audio system
■
Conditions under which the system will not operate ●
If using a mobile phone that does not support Bluetooth ®
●
If the mobile phone is switched off●
If you are outside service range●
If the mobile phon e is not connected●
If the mobile phone's battery is low●
If the mobile phone is behind the seat or in the glove box or console box●
If metal is covering or touching the phone■
When using the hands-free system ●
The audio system and voice guidance are muted when making a call.●
If both parties speak at the same time, it may be difficult to hear.●
If the incoming call volume is overly loud, an echo may be heard.●
Try to face toward the microphone as much as possible when speaking.●
In the following circumstances, it may be difficult to hear the other party:
• When driving on unpaved roads
• When driving at high speeds
• When a window is open
• When the air conditioning is blowing directly on the microphone
• When the air conditioning is set to high■
When transferring ownership of the vehicle
Be sure to initialize the system to prev ent personal data from being improperly
accessed. (  P. 5 74 )■
About Bluetooth ®
Bluetooth is a registered trademark of
Bluetooth SIG. Inc.