air conditioning LEXUS RC300H 2017 Owner's Manual

4376-1. Using the air conditioning system
6
Interior features
RC300h_EE(OM24740E)
Press , or select “AUTO” on the air conditioning control screen.
Press to switch to automatic air intake mode.
The air conditioning system automatically switches between outside air and recircu-
lated air modes.
Adjust the temperature setting.
To stop the operation, press or select “OFF” on the air conditioning
control screen.
■Automatic mode indicator
If the fan speed setting or air flow modes are operated, the automatic mode
indicator goes off. However, automatic mode for functions other than that
operated is maintained.
■Adjusting the temperature for driv er and passenger seats separately
(“DUAL” mode)
To turn on the “DUAL” mode, perfor m any of the following procedures:
●Press .
●Select “DUAL” on the option control screen.
●Adjust the passenger’s side temperature setting.
The indicator comes on when the “DUAL” mode is on.
While in “DUAL” mode, the temperature of the rear air outlets is set at the right-
hand side temperature setting.
Using automatic mode
1
2
3
4

4386-1. Using the air conditioning system
RC300h_EE(OM24740E)
■Switching between outside air and recirculated air modes
Press .
The mode switches among (recir culated air mode), automatic and
(outside air mode) modes each time the button is pressed.
When the system is switched to automatic mode, the air conditioning system oper-
ates automatically.
The indicator above the selected button comes on.
■Pollen removal mode
Pollen is removed from the air and the ai r flows to the upper part of the body.
Select
on the option control screen.
When pollen removal mode is on, is di splayed on the air conditioning con-
trol screen.
In order to prevent the windshield from fogg ing up when the outside air is cold, the
dehumidification function may operate.
Pollen is filtered even if the pollen removal mode is turned off.
■Defogging the windshield
Defoggers are used to defog the windshield and side windows.
Press .
Set the outside/recirculated air mode button to outside air mode if the recirculated
air mode is used. (It may switch automatically.)
To defog the windshield and the side windows early, turn the air flow and tempera-
ture up.
To return to the previous mode, press again when the windshield is
defogged.
■Defogging the rear window and outside rear view mirrors
Defoggers are used to defog the rear window, and to remove raindrops, dew
and frost from the outside rear view mirrors.
Press .
The defoggers will automatically turn off after a period of time.
Other functions

4396-1. Using the air conditioning system
6
Interior features
RC300h_EE(OM24740E)
■Windshield wiper de-icer (if equipped)
This feature is used to prevent ice from building up on the windshield and
wiper blades.
Turns on/off.
The indicator come s on when the windshield wiper de-icer is on.
The windshield de-icer will automati- cally turn off after a period of time.
■Blower customization
Fan speed setting during the automatic mode operation can be customized.
To change the fan speed setting mode, select on the air conditioning
control screen.
Each time is selected, the fan speed setting mode changes as follows.
“MEDIUM” “SOFT”“FAST”“MEDIUM”

4406-1. Using the air conditioning system
RC300h_EE(OM24740E)
■Location of air outlets
The air outlets and air volume
changes according to the selected
airflow mode.
■Adjusting the position of and opening and closing the air outlets
Direct air flow to the left or right, up or down
To close the vent, move the knob to the most outside position. (rear outlets only)
Turn the knob to open or close the vent
Air outlets
FrontRear
1
2

4416-1. Using the air conditioning system
6
Interior features
RC300h_EE(OM24740E)
■Registering air conditioning settings to electronic keys (vehicles with driving position
memory)
●Unlocking the vehicle using an electronic key and turning the power switch to ON
mode will recall that key's registered air conditioning settings.
●When the power switch is turned off, the cu rrent air conditioning settings will automati-
cally be registered to the electronic key that was used to unlock the vehicle.
●The system may not operate correctly if more than one electronic key is in the vicinity or
if the smart entry & start system is used to unlock a passenger door.
●The doors that can recall the air conditioning setting* when unlocked using the smart
entry & start system can be changed. For details, contact any authorized Lexus dealer
or repairer, or another duly qu alified and equipped professional.
*: The doors that can recall the driving position memory are changed at the same time.
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and the ambi-
ent conditions.
Therefore, the fan may stop for a while until wa rm or cool air is ready to flow immediately
after is pressed or “AUTO” is selected.
■Fogging up of the windows
The windows will easily fog up when the hu midity in the vehicle is high. Turning
(“A/C”) on will dehumidify the air from the ou tlets 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 entering the vehicle interior . During cooling operation, setting the
recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automati cally switch depending on the tempera-
ture setting or the inside temperature.
■Automatic mode for air intake control
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.
■Operation of the air conditioning system in Eco drive mode
In Eco drive mode, the air conditioning system is controlled as follows to prioritize fuel
efficiency:
●Engine speed and compressor operation controlled to restrict heating/cooling capac-
ity
●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

4426-1. Using the air conditioning system
RC300h_EE(OM24740E)
■When the outside temperature falls to nearly 0C (32F)
The dehumidification function may not operate even when is pressed or “A/C” is
selected.
■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. 509
■Customization
Settings (e.g. A/C auto switch operation) can be changed. (Customizable features P. 614)
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 pillarswhen the windshield wiper de-icer is on.
●Do not place anything on the instrumentpanel which may cover the air outlets. Other-wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.

4436-1. Using the air conditioning system
6
Interior features
RC300h_EE(OM24740E)
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid sys- tem is off.

4446-1. Using the air conditioning system
RC300h_EE(OM24740E)
Turn the heated steering wheel on/off
The indicator light comes on when the heated steering wheel is operating.
Heated steering wheel/seat heaters/seat ventila-
tors
: If equipped
Heated steering wheel and seat heaters heat the side grips of the steering
wheel and seats, respectively. Seat ventilators maintain good airflow by blow-
ing air from the seats.
WARNING
●Care should be taken to prevent injury if anyone in the following categories comes in contact with the steering wheel and seats when the heater is on:
• Babies, small children, the elderly, the sick and the physically challenged
• Persons with sensitive skin • Persons who are fatigued• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold
remedies, etc.)
●Observe the following precautions to prevent minor burns or overheating,
• Do not cover the seat with a blanket or cushion when using the seat heater. • Do not use seat heater more than necessary.
NOTICE
●Do not put heavy objects that have an uneven surface on the seat and do not sticksharp objects (needles, na ils, etc.) into the seat.
●To prevent 12-volt battery discharge, do not use the functions when the hybrid system is off.
Heated steering wheel

4456-1. Using the air conditioning system
6
Interior features
RC300h_EE(OM24740E)
●The heated steering wheel can be used when the power switch is in ON mode.
●The heated steering wheel will automatically turn off after about 30 minutes.
Each time the switch is pressed, the
intensity of the seat heater changes and
the level indicator lights (amber) light
as follows:
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
■The seat heaters can be used when
The power switch is in ON mode.
■Seat heater timer control
To enable seat heater timer control, press and hold the driver and front passenger seat heater switches at the same time when the vehicle is stopped until a buzzer sounds once.If a seat heater is turned on while seat heater timer control is enabled, the intensity of the
seat heater will automa tically change from HiMidLo.
The timing of the change in seat heater intensity differs depending on the temperature inside the cabin, etc. when the seat heater is operating.
To disable seat heater timer control, press and hold the driver and front passenger seat heater switches at the same time until a buzzer sounds twice.
Each time the switch is pressed, the
intensity of the seat ventilator changes
and the level indicator lights (green)
light as follows:
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
■The seat ventilators can be used when
The power switch is in ON mode.
Seat heaters
Type A Type B
Seat ventilators

459
7Maintenance and care
RC300h_EE(OM24740E)
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................460
Cleaning and protecting
the vehicle interior.................. 464
7-2. Maintenance
Maintenance
requirements ............................ 467
7-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions................................ 469
Hood ................................................. 471
Positioning a floor jack ............ 472
Engine compartment ............... 473
12-volt battery .............................. 481
Tires .................................................484
Replacing the tire....................... 499
Tire inflation pressure ..............505
Wheels ........................................... 507
Air conditioning filter ...............509
Electronic key battery................. 511
Checking and replacing
fuses............................................... 514
Light bulbs...................................... 518