2019 LEXUS RX450H Owners Manual

5216-2. Using the air conditioning system and defogger
RX450h_RX450hL_U
6
Interior features
NOTICE
■Humidity sensor
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid sys-
tem is off.
In order to detect fog on the windshield, a sen-
sor which monitors the temperature of the
windshield, the surround humidity, etc. is
installed. ( P. 519)
Follow these points to avoid damaging the sen-
sor:
●Do not disassemble the sensor
●Do not spray the glass cleaner on the sensor
or subject it to strong impacts
●Do not stick anything on the sensor

5226-2. Using the air conditioning system and defogger
RX450h_RX450hL_U
■Adjusting the temperature setting
Press to increase the temperature and to decrease the tem-
perature.
■Adjusting the fan speed setting
Press to increase the fan speed and to decrease the fan speed.
Press the “OFF” button to turn the fan off.
Rear automatic air cond itioning system (RX450hL)
Air outlets and fan speed are automati cally adjusted according to the tem-
perature setting.
Control panel

5236-2. Using the air conditioning system and defogger
RX450h_RX450hL_U
6
Interior features
■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.
1
2
3

5246-2. Using the air conditioning system and defogger
RX450h_RX450hL_U
■Using the automatic mode Press the “AUTO” button
Adjust the temperature setting.
To stop the operation, press the “OFF” button.
■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.
■Location of air outlets
The air outlets and air volume
changes according to the selected
air flow mode.
■Adjusting the position of and opening and closing the air outlets
Adjusting the position of and open-
ing and 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
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.

5256-2. Using the air conditioning system and defogger
RX450h_RX450hL_U
6
Interior features
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 ventilation using
a fan built into 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 unev en surface on the seat and do not stick
sharp objects (needles, nails, etc.) into the seat.
●To prevent 12-volt battery discharge, do not use the functions when the hybrid system
is off.

5266-2. Using the air conditioning system and defogger
RX450h_RX450hL_U
Turns the heated steering wheel on/off
The indicator light comes on when the
heated steering wheel is operating.
■Operation condition
The heated steering wheel can be used when the power switch is in ON mode.
■Timer
The heated steering wheel will automati cally turn off after about 30 minutes.
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 condition changes as follows.
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
The level indicator (amber) lights up
during operation.
■Operation condition
The front seat heaters can be used when the power switch is in ON mode.
■When the air conditioning system is operating in S-FLOW mode
If a passenger is not detected in the front pa ssenger seat, the seat heater of the front pas-
senger’s seat will be turned off if on. ( P. 514)
■Customization
Some functions can be customized. ( P. 736)
Heated steering wheel
Front seat heaters
Level
indicator
“AUTO”
indicator

5276-2. Using the air conditioning system and defogger
RX450h_RX450hL_U
6
Interior features
Each time the switch is pressed, the
operation condition changes as follows.
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
The level indicator (amber) lights up
during operation.
■Operation condition
The rear seat heaters can be used wh en the power switch is in 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 condition changes as follows.
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
The level indicator (green) lights up
during operation.
■Operation condition
The seat ventilators can be used when the power switch is in ON mode.
■When the air conditioning system is operating in S-FLOW mode
If a passenger is not detected in the front pa ssenger seat, the seat heater of the front pas-
senger’s seat will be turned off if on. ( P. 514)
■Customization
Some functions can be customized. ( P. 736)
Rear seat heaters
Level indicator
Seat ventilators
Level
indicator
“AUTO”
indicator

528
RX450h_RX450hL_U6-3. Using the interior lights
Interior lights list
Outer foot lights
Instrument panel ornament light
(if equipped)
Shift lever light
Front interior light (
P. 529)
Front personal lights ( P. 530)
Door trim ornament lights
(if equipped) Rear interior light (
P. 529)
Rear personal lights ( P. 530)
Door courtesy lights
Footwell lights
Scuff lights (if equipped)
Front center console light1
2
3
4
5
6
7
8
9
10
11
12