2019 LEXUS RX350 ECO mode

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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516 6-2. Using the air conditio ning system and defogger
RX350/RX350L_U ■
When the outside temperature exceeds 75  F (24  C) and the air conditioning system
is on ●
In order to reduce the air co nditioning 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 defaul t mode when the engine switch is turned to
IGNITION ON mode. ●
It is possible to switch to outside air mode at any time by pressing the outside/recircu-
lated air mode button. ■
Automatic mode for air intake control (if equipped)
In automatic mode, the system detects exhaust gas and other pollutants and automati-
cally switches between outside air and recirculated air modes.
When the dehumidification function is off, and the fan is operating, turning automatic
mode on will activate the dehumidification function. ■
Fogging up of the windows ●
The windows will easily fog up when the humidity in the vehicle is high. Selecting “A/C”
will dehumidify the air from the outlets and defog the windshield effectively. ●
If you turn “A/C” off, the windows may fog up more easily. ●
The windows may fog up if the recirculated air mode is used. ■
Outside/recirculated air mode ●
When driving on dusty roads such as tunnels or in heavy traffic, set the outside/recircu-
lated air mode button to the recirculated air mode. This is effective in preventing out-
side air from enteri ng the vehicle interior. During cooling operation, setting the
recirculated air mode will also cool the vehicle interior effectively. ●
Outside/recirculated air mode may automa tically switch depending on the tempera-
ture setting or the inside temperature. ■
When the outside temperature is low
The dehumidification function may not operate even when “A/C” is selected. ■
Operation of the air conditioning system in Eco drive mode ●
In the Eco drive mode, the air conditioning sy stem 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

5176-2. Using the air conditioning system and defogger
6
Interior features
RX350/RX350L_U ■
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 accu-
mulate in the air conditioning system. 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 dela yed for a short period of time immediately
after the air conditioning system is started in automatic mode.■
Air conditioning filter
 P. 618 ■
Customization
Some functions can be customized. (  P. 722)
WARNING ■
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 outside air and that of the windshield can cause
the outer surface of the windshield to fog up, blocking your vision.
■
To prevent burns ●
Do not touch the rear view mirror surfaces when the outside rear view mirror defog-
gers are on. ●
Do not touch the glass at lower part of the windshield or to the side of the front pillars
when the windshield wiper de-icer is on. (if equipped)
NOTICE ■
To prevent battery discharge
Do not leave the air conditioni ng system on longer than necessary when the engine is
off. ●
Do not place anything on the instrument
panel which may cover th e air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.

5236-2. Using the air conditioning system and defogger
6
Interior features
RX350/RX350L_U Each time the switch is pressed, the operation condition changes as follows. Hi
(3 segments lit)  Mid (2 segments lit)  Lo (1 segment lit)  OffThe level indicator (amber) lights up during operation.■
Operation condition
The second-row seat heaters can be used when the engine switch is in IGNITION ON
mode.
When any switch is pressed, the system
is set to automatic mode and the
“AUTO” indicator (green) lights up.
Each time the switch is pressed, the
operation cond ition changes as follows.
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  OffThe level indicator (green) lights up
during operation. ■
Operation condition
The seat ventilators can be used when the engine switch is in IGNITION ON mode.■
When the air conditioning system is operating in S-FLOW mode
If a passenger is not detected in the front passenger seat, the seat ventilator of the front
passenger’s seat will be turned off if on. (  P. 511)■
Customization
Some functions can be customized. (  P. 722)Second-row seat heaters 
Type A 
Type BLevel indicator
Level indicator
Seat ventilators Level
indicator“AUTO”
indicator

546 6-5. Using the other interior features
RX350/RX350L_U ■
Operation indicator light status
* : Depending on the portable device, the oper ation indicator light may stay illuminated
(orange) after charging has completed.●
If the operation indicator light blinks
If an error is detected, the operation in dicator light will blink (orange). Take the
appropriate measures according to the table below.
■
The wireless charger can be operated when
The engine switch is in ACCESSORY or IGNITION ON mode. ■
Portable devices t hat can be charged●
Portable devices compatible with the Qi wireless charging standard can be charged by
the wireless charger. However, compatibility with all devices which meet the Qi wire-
less charging standard is not guaranteed. ●
The wireless charger is designed to supply low power electricity (5 W or less) to a cel-
lular phone, smartphone, or other portable device.Operation indicator light State
Off The Wireless charger is off
Green (illuminated) Standby (charging is possible)
Charging is complete
*Orange (illuminated) A portable device has been placed on the charging
area (identifying the portable device)
Charging in progress
Operation indicator light Suspected causes Measure
Blinks (orange) at a one
second interval continu-
ously Vehicle to charger com-
munication failure. Contact your Lexus dealer.
Blinks (orange) 3 times
repeatedly A foreign object exists
between the portable
device and charging area. Remove the foreign object.
Portable device is not posi-
tioned properly on the
charging area. Move the portable device
toward the center of the
charging area.
Blinks (orange) 4 times
repeatedly The temperature of the
wireless charger is exces-
sively high. Stop charging immediately
and continue charging
after a while.

570 6-5. Using the other interior features
RX350/RX350L_U ■
Safety Connect Serv ices Information●
Phone calls using the vehicles Bluetooth ®
technology will not be possible during Safety
Connect. ●
Safety Connect is available be ginning Fall 2009 on select Lexus models (in the contig-
uous United States only). Contact with th e Safety Connect respon se center is depen-
dent upon the telematics device being in operative condition, cellular connection
availability, and GPS sa tellite signal receptio n, which can limit the ability to reach the
response center or receive emergency se rvice support. Enro llment and Telematics
Subscription Service Agreement required. A va riety of subscription terms is available;
charges vary by subscription term selected and location. ●
Automatic Collision Notification, Emergenc y Assistance and Stolen Vehicle Location
will function in the United States, includin g Hawaii and Alaska, Puerto Rico and in Can-
ada, and Enhanced Roadside Assistance will function in the United States, Puerto Rico
and in Canada. ●
Automatic Collision Notification, Emergency Assistance, Stolen Vehicle Location and
Enhanced Roadside Assistance will not func tion in the United States Virgin Islands.
No Safety Connect services will function outs ide of the United States in countries other
than Canada.
For vehicles first sold in the USVI, no Safety Connect services will function in and out-
side the United States Virgin Islands. ●
Safety Connect services are not subject to section 255 of the Telecommunications Act
and the device is not TTY compatible. ■
Languages
The Safety Connect response ce nter will offer support in mu ltiple languages. The Safety
Connect system will offer voice prompts in English, Spanish and French. Please indicate
your language of ch oice when enrolling.■
When contacting the response center
You may be unable to contact the resp onse center if the network is busy.
When the engine switch is turned to IGNITION ON mode, the red indicator
light comes on for 2 seconds then turns off. Afterward, the green indicator light
comes on, indicating that the service is active.
The following indicator light patterns indicate specific system usage conditions: ●
Green indicator light on = Active service ●
Green indicator light flashing = Safety Connect call in process●
Red indicator light (except at vehicle start-up) = System malfunction (contact
your Lexus dealer) ●
No indicator light (off) = Safety Connect service not activeSafety Connect LED light Indicators

5917-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX350L_U * : Vehicles with single-beam headlightsTire inflation pres-
sure (  P. 613) • Tire pressure gauge • Compressed air source
Washer fluid
(  P. 603) • Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
WARNING
The engine compartment contains many mechan isms and fluids that may move suddenly,
become hot, or become electrically energize d. To avoid death or serious injury, observe
the following precautions. ■
When working on the engine compartment ●
Keep hands, clothing and tools away from the moving fan and engine drive belt.●
Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driving
as they may be hot. Oil and other fluids may also be hot. ●
Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment. ●
Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel and
battery fumes are flammable. ●
Be extremely cautions when working on the battery. It contains poisonous and corro-
sive sulfuric acid. ■
When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant temperature is high.
(  P. 599) ■
Safety glasses
Wear safety glasses to prevent flying or falling material, flui d spray, etc. from getting in
your eyes.
NOTICE ■
If you remove the air cleaner filter
Driving with the air cleaner f ilter removed may cause excessive engine wear due to dirt
in the air. Items Parts and tools

6017-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX350L_U Check the battery as follows. ■
Battery exterior Make sure that the battery terminals are not corroded and that there are no
loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp ■
Before recharging
When recharging, the battery produces hydrogen gas which is flammable and explosive.
Therefore, observe the following precautions before recharging: ●
If recharging with the battery installed on the vehicle, be sure to disconnect the ground
cable. ●
Make sure the power switch on the charge r is off when connecting and disconnecting
the charger cables to the battery. ■
After recharging/reconnecting the battery ●
The engine may not start. Follow the pr ocedure below to in itialize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine.●
Unlocking the doors using the smart access system with push-button start may not be
possible immediately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.●
Start the engine with the engine switch in ACCESSORY mode. The engine may not
start with the engine switch turned off. However, the engine will operate normally from
the second attempt. ●
The engine switch mode is recorded by the vehicle. If the battery is reconnected, the
vehicle will return the engine switch mode to the status it was in before the battery was
disconnected. Make sure to turn off the power before disconnect the battery. Take
extra care when connecting the battery if the engine switch mode prior to discharge is
unknown.
If the system will not start even after multip le attempts at all methods above, contact your
Lexus dealer.Battery 1
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