
4065-2. Using the air conditioning system and defogger
RX450h_U_OM0E013U
■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.
Air flows to the feet and the
windshield defogger operates
■S-FLOW mode
In S-FLOW mode, priority for the airflo w is given to the front seats, reducing
the airflow and air conditioning effect on the rear seats.
If a passenger is not detected in the fr ont passenger seat, priority for the air-
flow will be given to the driver's seat only.
In this case, the temperature indicator for the front passenger side will turn off.
S-FLOW mode will be activated automa tically according to the set tempera-
ture, outside temperature, etc. ( P. 411)
The indicator comes on when S-FLOW mode is on.
■Other functions
●Switching between outside air and recirculated air modes ( P. 409)
●Defogging the windshield ( P. 409)
●Defogging the rear window and outside rear view mirrors ( P. 409)
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4075-2. Using the air conditioning system and defogger
5
Interior features
RX450h_U_OM0E013U
Adjust the left-hand side tem-
perature setting
Adjust the fan speed setting
Select the air flow mode
Adjust the right-hand side tem-
perature setting
Display the option control screen
(P. 407)
Select to set automatic mode on/off
Select to set cooling and dehumidification function on/off
Adjust the temperature for driver an d passenger seats separately (“DUAL”
mode) ( P. 408)
Select to set eco mode on/off ( P. 412)
■Option control screen
Select on the air conditioning control screen to display the option
control screen. The functions can be switched on and off.
Prevent ice from building up on
the windshield and wiper blades
(if equipped) ( P. 409)
Control screen
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4085-2. Using the air conditioning system and defogger
RX450h_U_OM0E013U
■Side display operation screen (V ehicles with 12.3-inch display)
Select the air flow mode
Adjust the left-hand side tem-
perature setting
Adjust the fan speed setting
Adjust the right-hand side tem-
perature setting
Select to set auto mode on/off
Select to set cooling and dehu-
midification function on/off
Adjust the temperature for driver an d passenger seats separately (“DUAL”
mode) ( P. 408)
■Using the automatic mode
Press the “AUTO” button or select “A UTO” on the air conditioning control
screen.
Press to switch to automatic air intake mode. (if equipped)
The air conditioning system automati cally switches between outside air
and recirculated air modes.
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.
■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:
●Select “DUAL” on the air conditioning control screen.
●Select “DUAL” on the side display op eration screen. (Vehicles with 12.3-
inch display)
●Adjust the temperature setting of th e passenger side with the passenger
side temperature adjustment button.
The indicator comes on when the “DUAL” mode is on.
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Air conditioning controls
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4145-2. Using the air conditioning system and defogger
RX450h_U_OM0E013U
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 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.

4646-1. Maintenance and care
RX450h_U_OM0E013U
NOTICE
■Cleaning detergents
●Do not use the following types of detergent, as they may discolor the vehicle interior
or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances su ch as benzene or gasoline, alkaline or
acidic solutions, dye, and bleach
• Seats: Alkaline or ac idic solutions, such as thinner, benzene, and alcohol
●Do not use polish wax or polis h cleaner. The instrument pane l’s or other interior part’s
painted surface may be damaged.
■Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of leather
surfaces:
●Remove any dust or dirt from leather surfaces immediately.
●Do not expose the vehicle to direct sunlight for extended periods of time. Park the
vehicle in the shade, especially during summer.
●Do not place items made of vinyl, plastic, or containing wax on the upholstery, as they
may stick to the leather surface if the vehicle interior heats up significantly.
■Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if wate r comes into contact
with electrical components such as the au dio system above or under the floor of the
vehicle. Water may also cause the body to rust.
■When cleaning the inside of the windshield (vehicles with Lexus Safety System+)
Do not allow glass cleaner to contact the lens. Also, do not touch the lens.
( P. 292, 302)
■Cleaning the inside of the rear window
●Do not use glass cleaner to clean the rear window, as this may cause damage to the
rear window defogger heater wires or antenna. Use a cloth dampened with luke-
warm water to gently wipe the window clean. Wipe th e window in strokes running
parallel to the heater wires or antenna.
●Be careful not to scratch or damage the heater wires or antenna.

4686-2. Maintenance
RX450h_U_OM0E013U
*: Vehicles with sing le-beam headlights
Vehicle interior
ItemsCheck points
Accelerator pedal• The accelerator pedal sh ould move smoothly (with-
out uneven pedal effort or catching).
Brake pedal
• Does the brake pedal move smoothly?
• Does the brake pedal have appropriate clearance from the floor? ( P. 588)
• Does the brake pedal have the correct amount of free play? ( P. 588)
Brakes
• The vehicle should not pull to one side when the
brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel spongy.
• The brake pedal should no t get too close to the floor
when the brakes are applied.
Head restraints• Do the head restraints move smoothly and lock securely?
Hybrid transmission “Park”
mechanism• When parked on a slope and the shift lever is in P, is
the vehicle securely stopped?
Indicators/buzzers• Do the indicators and buzzers function properly?
Lights• Do all the lights come on?
• Are the headlights aimed correctly?
* ( P. 511)
Parking brake• Does the parking brake switch operate normally?
• When parked on a slope and the parking brake is on,
is the vehicle securely stopped?
Seat belts• Do the seat belts operate smoothly?
• The seat belts should not be damaged.
Seats• Do the seat controls operate properly?
Steering wheel
• Does the steering wheel rotate smoothly?
• Does the steering wheel have the correct amount offree play?
• There should not be any strange sounds coming from the steering wheel.

6018-1. Specifications
8
Vehicle specifications
RX450h_U_OM0E013U
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for
three hours or more, or has not been driven more than 1
mile or 1.5 km un der that condition
Maximum inflation pres-
sureThe maximum cold inflated pr essure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a manu-
facturer
Accessory weight
The combined weight (in exce ss of those standard items
which may be replaced) of hybrid transmission, power
steering, power brakes, power windows, power seats,
radio and heater, to the extent that these items are avail-
able as factory-installed eq uipment (whether installed
or not)
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning and additional
weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the numb er of occupants specified
in the second column of Table 1* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in the
third column of Table 1
* below

642Alphabetical index
RX450h_U_OM0E013U
CareAluminum wheels ............................. 459
Exterior................................................... 458
Interior .....................................................462
Seat belts ................................................463
Self-restoring coat ............................ 458
Cargo capacity............................ 212, 582
Cargo hooks ...........................................427
Cargo net hooks ....................................427
Chains .........................................................391
Child restraint system............................ 59 Booster seats installation...................68
Convertible seats installation ..............................................66
Front passenger occupant classification system ...........................51
Infant seats definition ...........................65
Infant seats installation ..........................61
Installing CRS with LATCH anchors ..................................................... 71
Installing CRS with seat belts ..........................................................65
Installing CRS with top tether strap.......................................................... 74
LATCH anchors ..................................... 71 Child safety
.................................................... 58
12-volt battery precautions ...........................485, 572
Airbag precautions................................ 41
Child restraint system......................... 59
How your child should wear the seat belt .............................. 34
Installing child restraints .................... 59
Moon roof precautions ....................196
Panoramic moon roof precautions .......................................200
Power back door precautions ......................................... 152
Power window lock switch............ 189
Power window precautions ........... 192
Rear door child-p rotectors ............139
Removed key battery precautions ....................................... 507
Seat belt extender precautions .......................................... 36
Seat belt precautions .......................... 36
Seat heater precautions ................... 414
Child-protectors .................................... 139
Cleaning ....................................... 458, 462 Aluminum wheels .............................. 459
Exterior ...................................................458
Interior ..................................................... 462
Seat belts................................................ 463
Clock................................................. 97, 433
Coat hooks ..............................................444
Condenser.............................................. 480
Console box ............................................422
Consumption screen .................. 106, 124
C