2018 Lexus GX460 Owner's Manual / LEXUS 2018 GX460 OWNER'S MANUAL (OM60Q09U)

GX460_OM_OM60Q09U_(U)
3935-1. Using the air conditioning system and defogger
5
Interior features
■Registering air conditioning settings to electronic keys
●Unlocking the vehicle using an electronic key and turning the engine switch to
IGNITION ON mode will recall that key’s registered air conditioning settings.
●When the engine switch is turned off, the current air conditioning settings will automat-
ically 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 access system with push-button start is used to unlock a passenger door.
Settings for the electronic key and th e corresponding door can be changed.
Contact your Lexus dealer.
■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 the “AUTO” button is pressed.
■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 or
.
■Fogging up of the windows
●The windows will easily fog up when the humidi ty in the vehicle is high. Touching “A/C”
on will dehumidify the air from the outl ets 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.

3945-1. Using the air conditioning system and defogger
GX460_OM_OM60Q09U_(U)
■Automatic mode for air intake control (vehicles with rear air conditioning system)
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.
■When the outside temperature is low
The dehumidification function may not operate even when “A/C” is touched.
■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. 489
■Customization
Settings (e.g. A/C automatic mode sw itch operation) can be changed.
(Customizable features: →P. 594)

GX460_OM_OM60Q09U_(U)
3955-1. Using the air conditioning system and defogger
5
Interior features
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. (vehicles with windshield wiper de-icer)
NOTICE
■To prevent battery discharge
Do not leave the air conditioning 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.

396
GX460_OM_OM60Q09U_(U)5-1. Using the air conditio
ning system and defogger
Rear air conditioning system∗
■Adjusting the temperature setting
Press “∧” on the “TEMP” button to in crease the temperature and “∨ ” to
decrease the temperature.
■Adjusting the fan speed setting
Press “∧ ” on to increase the fan speed and “ ∨” to decrease the fan
speed.
Press the “OFF” button to turn the fan off.
■Changing the air flow mode
Press .
The air flow mode switch each time the button is pressed.
∗: If equipped
Air outlets and fan speed are automati cally adjusted according to the tem-
perature setting.

GX460_OM_OM60Q09U_(U)
3975-1. Using the air conditioning system and defogger
5
Interior features
■Using the automatic mode
Press the “AUTO” button.
Adjust the temperature setting.
To stop the operation, press the “OFF” button.
■If the system is operated manually in automatic mode
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 are maintained.
■Location of air outlets
The air outlets and air volume
changes according to the selected
air flow mode.
■Adjusting the air flow direction and opening/closing the air outlets
Direct air flow to the left or right,
up or down.
Turn the knob fully to the back of
the vehicle to close the vent.
Air conditioning controls
Air outlets
1
2
3
1
2

3985-1. Using the air conditioning system and defogger
GX460_OM_OM60Q09U_(U)
■Registering air conditioning settings to electronic keys
●Unlocking the vehicle using an electronic key and turning the engine switch to
IGNITION ON mode will recall that key’s registered air conditioning settings.
●When the engine switch is turned off, the current air conditioning settings will automat-
ically 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 access system with push-button start is used to unlock a passenger door.
Settings for the electronic key and th e corresponding door can be changed.
Contact your Lexus dealer.
NOTICE
■To prevent battery discharge
Do not leave the air conditioni ng system on longer than necessary when the engine is
off.

399
GX460_OM_OM60Q09U_(U)5-1. Using the air conditio
ning system and defogger
5
Interior features
Heated steering wheel∗/seat heaters∗/seat
ventilators
∗
Turns the heated steering wheel on/off
The indicator light comes on when the
heated steering wheel is operating.
∗: If equipped
Heated steering wheel and seat heaters heat the side grips of the steering
wheel and seats. Seat ventilators maintain good airflow by blowing air from
the seats.
CAUTION
●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 pr event the 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 unev en surface on the seat and do not stick
sharp objects (needles, nails, etc.) into the seat.
●To prevent battery discharge, do not us e the functions when the engine is off.
Heated steering wheel (if equipped)

4005-1. Using the air conditioning system and defogger
GX460_OM_OM60Q09U_(U)
●The heated steering wheel can be used when the engine switch is in IGNITION ON
mode.
●The heated steering wheel will automati cally turn off after about 30 minutes.
●If the indicator light flashes, press the switch to turn the heated steering wheel off and
then press the switch again. If the indica tor light still flashes, a malfunction may be
occurring. Turn the heated steering wheel off and have the vehicle inspected by your
Lexus dealer.
■Front seat
Turns the seat heater on
The indicator light comes on.
The higher the number of dots, the
warmer the seat becomes.
■Rear seat
For left second seat
For right second seat
High heating temperature
Low heating temperature
To turn on the seat heater, press “HI”
or “LO”.
The indicator light on “HI” or “LO”
switch indicates that the seat heater
is on.
Off
To turn off, press “OFF”.
The seat heaters can be used when the engine switch is in IGNITION ON mode.
Seat heaters (if equipped)
1
2
3
4
5