Page 420 of 628
4206-1. Using the air conditioning system
IS300h_EE(OM53D56E)
■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
XFront XRear
1
2
Page 421 of 628

4216-1. Using the air conditioning system
6
Interior features
IS300h_EE(OM53D56E)
■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 regist ered 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 conditioni ng setting when unlocked using the smart
entry & start system can be changed.* For details, contact any authorized Lexus dealer
or repairer, or another duly qualified 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 humidity in the vehicle is high. Turning
(“A/C”) on 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 entering the vehicle interior. During cooling operation, setting the
recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automatically switch depending on the tempera-
ture setting or the inside temperature.
■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 performance, perform the following operations:
●Adjust the fan speed
●Turn off Eco drive mode
Page 422 of 628

4226-1. Using the air conditioning system
IS300h_EE(OM53D56E)
■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 priorto 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.
■Air conditioning filter
→ P. 4 8 6
■Customization
Settings (e.g. A/C Auto switch operation) can be changed.
(Customizable features →P. 5 9 8 )
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 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.
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.
●Do not place anything on the instrument
panel which may cover the air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.
Page 424 of 628

4246-1. Using the air conditioning system
IS300h_EE(OM53D56E)
●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 until a buzzer sounds once. If a seat heater is turned on
while seat heater timer control is enabled, th e intensity of the seat heater will automati-
cally 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
Ty p e A Ty p e B
Seat ventilators
Page 427 of 628

4276-2. Using the interior lights
6
Interior features
IS300h_EE(OM53D56E)
■The interior lights and personal lights can be operated when
The interior lights and personal lights can be used regardless of the power switch mode.
However, when the power switch is turned off, they can be used only when the 12-volt
battery protection function is not operating.
■12-volt battery protection function
To prevent the 12-volt battery from being discharged, approximately 20 minutes after
the power switch is turned off, the power supplied to the interior lights, personal lights,
and other lights will be cut off automatically. (If th e interior lights, etc. are left on when the
power switch is turned off, they will be turned off automatically.)
To turn the interior lights, etc. back on, turn the power switch to ACCESSORY or ON
mode or operate the interior light switch until the interior lights turn on.
If any of the lights are illuminated automatically due to the illuminated entry system, the
12-volt battery protection function will be canceled.
■Illuminated entry system
The lights automatically turn on/off according to power switch mode, the presence of the
electronic key, whether the doors are locked/unlocked, and whether the doors are
opened/closed.
■Customization
Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: →P. 5 9 1 )
NOTICE
To prevent 12-volt battery discharge, do not leave the lights on longer than necessary
when the hybrid system is off.
Page 429 of 628
4296-3. Using the storage features
6
Interior features
IS300h_EE(OM53D56E)
Open (press the button)
Unlock with the mechanical key
Lock with the mechanical key
●The glove box light turns on when the power switch is in ACCESSORY or ON mode.
●The trunk opener main switch is located in the glove box. (→P. 1 4 5 )
Push the knob.
Lift by hand to fully open the console
box.
Glove box
1
2
3
●The insert inside the glove box can be
removed.
Console box
Page 436 of 628
4366-4. Using the other interior features
IS300h_EE(OM53D56E)
The power outlet can be used for 12 V accessories that run on less than 10 A.
Open the lid.
●The power outlet can be used when the power switch is in ACCESSORY or ON mode.
Power outlet
●To fully close the console box with the cable
routed to outside the console box, insert the
cable into the holder.
NOTICE
●To avoid the damaging the power outlet, close the power outlet lid when the power
outlet is not in use. Foreign objects or liquids that enter the power outlet may cause a
short circuit.
●To prevent blown fuse, do not use an accessory that uses more than 12 V 10 A.
●To prevent 12-volt battery discharge, do not use the power outlet longer than neces-
sary when the hybrid system is off.
Page 438 of 628

4386-4. Using the other interior features
IS300h_EE(OM53D56E)
●The rear sunshade can be used when the power switch is in ON mode.
●The rear sunshade can be operated for approximately 1 minute even after the power
switch is turned to ACCESSORY mode or turned off.
●Reverse operation feature: To ensure adequate rear visibility, the rear sunshade auto-
matically lowers when the shift lever is shifted to R.
However, the rear sunshade is raised again if any of the following occurs:
• The button is pressed again.
*• The shift lever is shifted into P.
• The shift lever is shifted out of R, and the vehicle reaches a speed of 15 km/h (9
mph).
If the hybrid system is off when the rear sunshade has been lowered due to the reverse
operation feature, it will not be raised even when the hybrid system is turned on again
and the vehicle reaches a speed of 15 km/h (9 mph). To raise the sunshade again,
press the button.
*: Occasionally, the reverse function may not be carried out after the switch has been
pressed. Repeat the above operation to operate the function.
CAUTION
When the rear sunshade is being operated, do not place fingers or other objects in the
fastener section or in the opening. They may get caught, causing injury.
NOTICE
●To prevent 12-volt battery discharge, do not operate the rear sunshade when the
hybrid system is off.
●Observe the following precautions to ensure normal operation of the rear sunshade.
• Do not place excessive load on the motor or other components of the rear sun- shade.
• Do not place objects where they may hinder opening and closing operations.
• Do not attach items to the rear sunshade.
• Keep the opening clean and clear of obstructions.
• Do not operate the rear sunshade continuously for long periods of time.