audio LEXUS RX350 2019 Owners Manual

5056-2. Using the air conditioning system and defogger
6
Interior features
RX350/RX350L_U ■
Change the airflow mode
To change the air outlets, press .
The air outlets used are switched each time the button is pressed.
Air flows to the upper body.
Air flows to the upper body and feet.
Air flows to the feet.
Air flows to the feet and the windshield defogger operates.■
Other functions ●
Switching between outside air and recirculated air modes (  P. 513)●
Defogging the windshield (  P. 513)●
Defogging the rear window and outside rear view mirrors (  P. 513)
Vehicles with a Lexus Display
Audio system 
Vehicles with a navigation system
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506 6-2. Using the air conditio ning system and defogger
RX350/RX350L_U 
Lexus Display Audio screen
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
Select to set auto mode on/off
Select to set eco mode on/off
(  P. 516)
Select to set cooling and dehumidifi-
cation function on/off If the indicator is turned off, the system will blow ambi ent temperature air
or heated air.
Display the option control screen (  P. 507)
Select the air flow mode
Adjust the right-hand side temperature setting 
Navigation system screen
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
Select the air flow mode
Adjust the right-hand side tempera-
ture setting
Display the option control screen
(  P. 507)
Select to set automatic mode on/off
Select to set cooling and de humidification function on/offIf the indicator is turned off, the system will blow ambient temperature air
or heated air.
Select to set eco mode on/off (  P. 516)Control screen (RX350) 1
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5076-2. Using the air conditioning system and defogger
6
Interior features
RX350/RX350L_U ■
Option control screen
Select on the air conditioning control screen to display the option
control screen. The functions can be switched on and off.
Prevent ice from building up on the windshield and wiper blades (if
equipped) (  P. 513)
Select to set S-FLOW mode (  P. 511)■
Side display operation screen (Vehicle s with a navigation system [12.3-inch
display])
Select the air flow mode
Adjust the left-hand side tem-
perature setting
Adjust the fan speed setting
Adjust the right-hand side tem-
perature setting
Select to set auto mode on/off
Select to set cooling and dehu-
midification function on/off If the indicator is turned off, the system will blow ambient temperature air
or heated air. 
Lexus Display Audio screen 
Navigation system screen
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508 6-2. Using the air conditio ning system and defogger
RX350/RX350L_U 
Lexus Display Audio screen
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
Select to set auto mode on/off
Select to set eco mode on/off
(  P. 516)
Select to set cooling and dehumidifi-
cation function on/off If the indicator is turned off, the system will blow ambi ent temperature air
or heated air.
Adjust the temperature for driver, passe nger and rear seats separately (“3-
ZONE” mode) (  P. 510)
Display the rear air condit ioning control screen (  P. 512)
Display the option control screen (  P. 509)
Select the air flow mode
Adjust the right-hand side temperature setting 
Navigation system screen
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
Select the air flow mode
Adjust the right-hand side tempera-
ture setting
Display the option control screen
(  P. 509)
Select to set automatic mode on/off
Select to set cooling and de humidification function on/offIf the indicator is turned off, the system will blow ambient temperature air
or heated air.
Adjust the temperature for driver, passe nger and rear seats separately (“3-
ZONE” mode) (  P. 510)
Select to set eco mode on/off (  P. 516)
Display the rear air condit ioning control screen (  P. 512)Control screen (RX350L) 1
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5096-2. Using the air conditioning system and defogger
6
Interior features
RX350/RX350L_U ■
Option control screen
Select on the air conditioning control screen to display the option
control screen. The functions can be switched on and off.
Prevent ice from building up on the windshield and wiper blades (if
equipped) (  P. 513)
Select to set S-FLOW mode (  P. 511)■
Side display operation screen (Vehicle s with a navigation system [12.3-inch
display])
Select the air flow mode
Adjust the left-hand side tem-
perature setting
Adjust the fan speed setting
Adjust the right-hand side tem-
perature setting
Select to set auto mode on/off
Select to set cooling and dehu-
midification function on/off If the indicator is turned off, the system will blow ambient temperature air
or heated air.
Adjust the temperature for driver, passenger and rear seats separately (“3-
ZONE” mode) (  P. 510)
Lexus Display Audio screen 
Navigation system screen
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512 6-2. Using the air conditio ning system and defogger
RX350/RX350L_U Press the “REAR” button or select on the air conditioning control screen
to display the rear air conditioning control screen.
Adjust the temperature setting
Adjust the fan speed setting
Select to set auto mode on/off
Turn the fan off ■
Using the automatic mode
Select the “REAR AUTO”.
Adjust the temperature setting.
To stop the operation, select “REAR OFF”.■
Automatic mode indicator
If the fan speed setting or air flow modes are operated, the automatic mode
indicator goes off. However, automati c mode for functions other than that
operated is maintained.Changing the rear se at settings (RX350L) 
Lexus Display Audio screen 
Navigation system screen
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544 6-5. Using the other interior features
RX350/RX350L_U 
Vehicles with a Lexus Display Audio system
The clock can be adjusted by pressing
the buttons.
Pressing and holding will move the
clock hands backward.
Pressing and holding will move the
clock hands forward. 
Vehicles with a navigation system
The GPS clock's time is automatically
adjusted by utilizing GPS time informa-
tion. For details, refer to “NAVIGATION
SYSTEM OWNER’S MANUAL”.
A portable device, such as a smartphone or mobile battery, can be charged by
just placing it on the charging area, prov ided the device is compatible with the Qi
wireless charging standard created by the Wireless Power Consortium.
The wireless charger cannot be used with a portable device that is larger than
the charging area. Additionally, dependin g on the portable device, the wireless
charger may not operate properly. Refer to the operation manual of the portable
device. ■
The “Qi” symbol
The “Qi” symbol is a trademark of the Wireless Power Consortium.Clock 1
2
Wireless charger (if equipped)

5837-1. Maintenance and care
7
Maintenance and care
RX350/RX350L_U NOTICE ■
Cleaning detergents ●
Do not use the following types of detergent, as they may discolor the vehicle interior
or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances su ch as benzene or gasoline, alkaline or
acidic solutions, dye, and bleach
• Seats: Alkaline or ac idic solutions, such as thinner, benzene, and alcohol●
Do not use polish wax or polis h cleaner. The instrument pane l’s or other interior part’s
painted surface may be damaged. ■
Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of leather
surfaces: ●
Remove any dust or dirt from leather surfaces immediately.●
Do not expose the vehicle to direct sunlight for extended periods of time. Park the
vehicle in the shade, especially during summer. ●
Do not place items made of vinyl, plastic, or containing wax on the upholstery, as they
may stick to the leather su rface if the vehicle interior heats up significantly.■
Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system ma y be damaged if wate r comes into contact
with electrical components such as the au dio system above or un der the floor of the
vehicle. Water may also cause the body to rust. ■
When cleaning the inside of the windshield
Do not allow glass cleaner to contact the lens. Also, do not touch the lens.
(  P. 276) ■
Cleaning the inside of the rear window ●
Do not use glass cleaner to clean the rear window, as this may cause damage to the
rear window defogger heater wires or antenna. Use a cloth dampened with luke-
warm water to gently wipe the window clean. Wipe th e window in strokes running
parallel to the heater wires or antenna. ●
Be careful not to scratch or damage the heater wires or antenna.

658 8-2. Steps to take in an emergency
RX350/RX350L_U ■
If the malfunction indicator lamp comes on while driving
First check the following: ●
Is the fuel tank empty?
If it is, fill the fu el tank immediately.●
Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible. ■
When the tire pressure warning light comes on
Inspect the tires to check if a tire is punctured.
If a tire is punctured:  P. 666
If none of the tires are punctured:
Turn the engine switch off then turn it to IGNITION ON mode. Check if the tire pressure
warning light comes on or blinks. 
If the tire pressure warning light comes on
After the temperature of the tires has lowere d sufficiently, check the inflation pressure
of each tire and adjust th em to the specified level.
If the warning light does not turn off even after several minutes have elapsed, check
that the inflation pressure of each tire is at the specified level an d perform initialization.
(  P. 606)
If the warning light does not turn off severa l minutes after the init ialization has been per-
formed, have the vehicle inspected by your Lexus dealer immediately. 
If the tire pressure wa rning light blinks for 1 minute then stays on
There may be a malfunction in the tire pressure warnin g system. Have the vehicle
inspected by your Lexus dealer immediately. ■
The tire pressure warning light ma y come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caus ed by temperature. In this case, adjusting
the tire inflation pressure will turn off the warning light (aft er a few minutes).■
When a tire is replaced with a spare tire
The compact spare tire is not equipped with a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warning light will not turn off even though the flat
tire has been replaced with the spare tire. Replace the spare tire with the repaired tire
and adjust the tire inflation pressure. The tire pressure warnin g light will go off after a few
minutes. ■
Conditions that the tire pressure wa rning system may not function properly
 P. 609 ■
Warning buzzer
In some cases, the buzzer ma y not be heard due to being in a noisy location or audio
sound. ■
Customization
Some functions can be customized. (  P. 722)1
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6898-2. Steps to take in an emergency
8
When trouble arises
RX350/RX350L_U ■
Starting the engine when the battery is discharged
The engine cannot be started by push-starting. ■
To prevent battery discharge ●
Turn off the headlights and the audio system while the engine is off. ●
Turn off any unnecessary electrical componen ts when the vehicle is running at a low
speed for an extended period , such as in heavy traffic.■
When removing the battery terminals
When the battery terminals are removed, the information stored in the ECU is cleared.
Before removing the battery termin als, contact your Lexus dealer.■
Charging the battery
The electricity stored in the battery will disc harge gradually even when the vehicle is not
in use, due to natural discharge and the draini ng effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.) ■
When the battery is removed or discharged ●
In some cases, it may not be possible to un lock the doors using the smart access system
with push-button start when the battery is discharged. Use the wireless remote control
or the mechanical key to lock or unlock the doors. ●
The engine may not start on the first attempt after the battery has recharged but will
start normally after the second attempt. This is not a malfunction. ●
The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery discharged, be
especially careful when reconnecting the battery. ●
The power back door must be initialized. (  P. 138)■
When replacing the battery ●
Use a battery with the same case size as the previous battery and an equivalent 20
hour rate capacity (20HR) or greater.
• If the sizes differ, the battery cannot be properly secured.
• If the 20 hour rate capacity is low, even if the time period where the vehicle is not
used is a short time, the battery may discharge and the engine may not be able to
start. ●
For details, consult your Lexus dealer.