2019 LEXUS RX350 air conditioning

3734-5. Using the driving support systems
4
Driving
RX350/RX350L_U 
Vehicles without Adaptive Variable Suspension System
Normal mode
Provides an optimal balance of fuel ec onomy, quietness, and dynamic perfor-
mance. Suitable for city driving. Press the switch to change the driving mode to normal mode when Eco drive mode or
sport mode is selected.
Eco drive mode
Helps the driver accelerate in an eco-fr iendly manner and improve fuel econ-
omy through moderate throttle charact eristics and by controlling the opera-
tion of the air conditioning system (heating/cooling). When not in Eco drive mode, if the driving mode select switch is tu rned to the left, the
Eco drive mode indicator will come on.
Sport mode
Controls the transmission and engine to provide quick, powerful acceleration.
This mode also changes the steering feel, making it suitable for when agile
driving response is desired, such as wh en driving on roads with many curves.When not in sport mode, if the driving mode select switch is turned to the right, the
“SPORT” indicator will comes on.Driving mode select switch The driving modes can be selected to suit driving conditions.
1
2
3

3754-5. Using the driving support systems
4
Driving
RX350/RX350L_U Eco drive mode
Helps the driver accelerate in an eco-fr iendly manner and improve fuel econ-
omy through moderate throttle charact eristics and by controlling the opera-
tion of the air conditioning system (heating/cooling). When not in Eco drive mode, if the driving mode select switch is tu rned to the left, the
Eco drive mode indicator will come on.
Sport mode
•SPORT S mode
Controls the transmission and engine to provide quick, powerful accelera-
tion. This mode is suitable for when agile driving response is desired, such
as when driving on roads with many curves. When not in SPORT S mode, if the driving mode select switch is turned to the
right, the “SPORT S” indicator will come on.
•SPORT S+ mode
Helps to ensure steering performanc e and driving stability by simultane-
ously controlling the steeri ng and suspension in addition to the transmis-
sion and engine. Suitable for sportier driving. When in SPORT S mode, if the driving mode select switch is turned to the right,
the “SPORT S+” indicator will come on. Function Setting
Powertrain Normal
Power
Eco
Chassis Normal
Sport
Air conditioning system Normal
Eco2
3

376 4-5. Using the driving support systems
RX350/RX350L_U ■
Operation of the air conditioning system in Eco drive mode
Eco drive mode controls the heating/cooling operations and fan speed of the air condi-
tioning system to enhance fuel efficiency. To improve air conditioning performance,
adjust the fan speed or turn off Eco drive mode. ■
Automatic deactivation of sport mode and customized mode
If the engine switch is turned off after dr iving in sport mode or customized mode, the
drive mode will be changed to normal mode. ■
Driving mode pop-up display (12.3-inch display only)
When the driving mode is changed, the sele cted driving mode will be temporarily dis-
played on the side display. (  P. 500)

3955-1. Basic Operations
5
Lexus Display Audio system
RX350/RX350L_U ■
“Menu” screen
To display the “Menu” screen, press th e “MENU” button on the Lexus Display
Audio controller.
* : Available in the 48 states, D.C. and Alaska Button Function
“Radio” Display the radio top screen (  P. 420)
“Media” Display the media top screen (  P. 427, 434, 438, 442, 447)
“Climate” Display the air conditioning control screen (  P. 506, 508)
“Phone” Display the phone top screen (  P. 455)
“Connected Navi”
* If a turn-by-turn navigation application has been downloaded
to a connected phone, the appl ication will be displayed and
can be used.
“Info” Display the “Information” screen (  P. 482)
“Setup” Display the “Setup” screen (  P. 406)
“Display” Display the display settings screen (  P. 411)

402 5-1. Basic Operations
RX350/RX350L_U ■
Adjusting the volume
The volume of the Mobile Assist ant can be adjusted using the
“ PWR·VOL
” knob or
steering wheel volume switch es. The Mobile Assistant an d phone call volumes are syn-
chronized. ■
Microphone
It is not necessary to speak directly into the microphone when using the Mobile Assis-
tant. ●
Wait for the listening beeps before using the Mobile Assistant.●
The Mobile Assistant may not recognize commands in the following situations:
• When spoken too quickly.
• When spoken at a low or high volume.
• When the roof or windows are open.
• When passengers are talking while th e Mobile Assistan t is being used.
• When the air conditioning syst em’s fan speed is set high.
• When the air conditioning vents ar e turned toward the microphone.■
Mobile Assistant precautions ●
The available features and functions may vary based on the iOS version installed on the
connected device. ●
Some Siri features are limited in Eyes Free mode. If you attempt to use an unavailable
function, Siri will inform you that the function is not available. ●
If Siri is not enabled on the ce llular phone connected via Bluetooth 
, an error message
will be displayed on the screen. ●
While a phone call is active, the Mobile Assistant cannot be used. ●
If using the navigation featur e of the cellular phone, ensure the active audio source is
Bluetooth 
audio or iPod in order to hear turn by turn direction prompts.

476 5-11. Bluetooth ®
RX350/RX350L_U ■
When using the Bluetooth ®
audio system●
In the following situations, the system may not function.
• If the portable audio player is turned off
• If the portable audio player is not connected
• If the portable audio player’s battery is low ●
There may be a delay if a cellular phon e connection is made during Bluetooth ®
audio
play. ●
Depending on the type of portable audio play er that is connected to the system, opera-
tion may differ slight ly and certain functions may not be available.■
When using the hands-free system ●
The audio system is mu ted when making a call.●
If both parties speak at the same time, it may be difficult to hear.●
If the received call volume is over ly loud, an echo may be heard.
If the Bluetooth ®
phone is too close to the system, quality of the sound may deteriorate
and connection status may deteriorate. ●
In the following situations, 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 blow ing directly on the microphone
• If there is interference from the network of the cellular phone●
Depending on the type phone, certain functions may not be available. ■
Conditions under which th e system will not operate●
If using a cellular phone that does not support Bluetooth ®
●
If the cellular phone is turned off ●
If you are outside of cellular phone service coverage ●
If the cellular phone is not connected ●
If the cellular phone’s battery is low ●
When outgoing calls are controlled, due to heavy traffic on phone lines, etc. ●
When the cellular phone itself cannot be used ●
When transferring phonebook da ta from the cellular phoneBluetooth ®

488 5-12. Other function
RX350/RX350L_U ■
Microphone
 P. 456 ■
When using the microphone ●
It is unnecessary to speak directly into the microphone when giving a command.●
Wait for the confirmation beep before speaking a command.●
Voice commands may not be recognized if:
• Spoken too quickly.
• Spoken at a low or high volume.
• The roof or windows are open.
• Passengers are talking while voice commands are spoken.
• The air conditioning speed is set high.
• The air conditioning vents are turned towards the microphone.●
In the following conditions, the system ma y not recognize the command properly and
using voice commands may not be possible:
• The command is incorrect or unclear. No te that certain words, accents or speech
patterns may be difficult for the system to recognize.
• There is excessive background noise, such as wind noise. ■
When searching for a track ●
A USB memory or iPod must be connected to enable track searching and playback.
(  P. 403) ●
When a USB memory or iPod is connected, recognition data is created so tracks can
be searched using voice commands. ●
Recognition data is updated un der the following conditions:
• When the USB memory or iPod data has changed.
• When the voice recognition language is changed. (  P. 407)●
While the recognition data is being created or being updated, a track search cannot be
performed using a voice command. ■
The Gracenote ®
media database

494
RX350/RX350L_U 6-1. Basic operation of the
Remote Touch screen
Remote Touch............................. 496
12.3-inch display ....................... 500
6-2. Using the air conditioning
system and defogger
Lexus Climate
Concierge..................................502
Front automatic air
conditioning system ...............503
Rear automatic air
conditioning system ................ 518
Heated steering wheel/
seat heaters/
seat ventilators .......................... 521
6-3. Using the interior lights
Interior lights list ......................... 524
• Interior lights .......................... 525
• Personal lights ....................... 526
6Interior features