Page 4 of 487

TABLE OF CONTENTSIndex
RX400h_U
2
1-1. Hybrid system ............................... 24Hybrid system................................... 24
1-2. Key information ........................... 34 Keys ...................................................... 34
1-3. Opening, closing and locking the doors...................................... 36
Wireless remote control .............. 36
Side doors .......................................... 39
Back door ........................................... 44
1-4. Adjustable components (seats, mirrors,
steering wheel) .......................... 49
Front seats .......................................... 49
Rear seats ........................................... 52
Driving position memory ............. 55
Head restraints................................. 57
Seat belts ........................................... 58
Steering wheel (manually adjustable type) ....... 65
Steering wheel (power-adjustable type)............ 66
Anti-glare inside rear view mirror ................................................ 67
Outside rear view mirrors ........... 68
Roof luggage carrier ..................... 70 1-5. Opening and closing the
windows and moon roof .......... 72
Power windows................................ 72
Moon roof .......................................... 75
1-6. Refueling ........................................ 78 Opening the fuel tank cap........... 78
1-7. Theft deterrent system.............. 83 Hybrid vehicle immobilizer system ............................................... 83
Alarm................................................... 85
Theft prevention labels (U.S.A.) ............................................ 88
1-8. Safety information ...................... 89 Correct driving posture ............... 89
SRS airbags ........................................ 91
Front passenger occupant classification system .................. 103
Child restraint systems ............... 108
Installing child restraints ............... 112
2-1. Driving procedures................... 122 Driving the vehicle ........................ 122
Engine (ignition) switch ................ 131
Transmission ................................... 135
Turn signal lever............................. 136
Parking brake ................................. 137
1Before driving
2When driving
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8
A
SRS side airbags P. 91
Pictorial indexInterior
Driver knee airbag
P. 91
Driver airbag P. 91
Floor mat P. 283
Front seats P. 49
Front passenger airbag
P. 91
Cup holders P. 269Cup holders P. 269
Armrest
Console box
∗
P. 282
P. 266
Armrest P. 282
Console box P. 266
Door pockets P. 271
Rear seats P. 52
Power window switches
P. 72
Head restraints P. 57
Seat belts P. 58
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9
A
Compass P. 292
Garage door opener switches P. 287
Anti-glare inside rear view mirror P. 67
Personal lights P. 264
Moon roof switches ∗ P. 75
Interior lights P. 263
Vanity mirrors P. 273
Sun visors P. 272
Overhead console P. 269
SRS curtain shield airbags P. 91
Rear seat entertainment system ∗
P. 233
∗: If equipped
Page 20 of 487

RX400h_U
18
For your information
Main Owner’s Manual
Please note that this manual applies to all models and explains all equipment, includ-
ing options. Therefore, you may find some explanations for equipment not installed
on your vehicle.
All specifications provided in this manual are current at the time of printing. How-
ever, because of the Lexus policy of continual product improvement, we reserve the
right to make changes at any time without notice.
Depending on specifications, the vehicle shown in the illustration may differ from
your vehicle in terms of color and equipment.
Accessories, spare parts and modification of your Lexus
A wide variety of non-genuine spare parts and accessories for Lexus vehicles are
currently available in the market. You should know that Toyota does not warrant
these products and is not responsible for their performance, repair, or replacement,
or for any damage they may cause to, or adverse effect they may have on, your
Lexus vehicle.
This vehicle should not be modified with non-genuine Lexus products. Modification
with non-genuine Lexus products could affect its performance, safety or durability,
and may even violate governmental regulations. In addition, damage or perfor-
mance problems resulting from the modification may not be covered under war-
ranty.
Installation of a mobile two-way radio system
As the installation of a mobile two-way radio system in your vehicle may affect elec-
tronic systems such as the hybrid system, multiport fuel injection system/sequential
multiport fuel injection system, cruise control system, vehicle dynamics integrated
management, anti-lock brake system, SRS airbag system and seat belt pretensioner
system, be sure to check with your Lexus dealer for precautionary measures or spe-
cial instructions regarding installation.
High voltage parts and cables on the hybrid vehicles emit approximately the same
amount of electromagnetic waves as the conventional gasoline powered vehicles or
home electronic appliances despite of their electromagnetic shielding.
Page 21 of 487
RX400h_U
19
Scrapping of your Lexus
The SRS airbag and seat belt pretensioner devices in your Lexus contain explosive
chemicals. If the vehicle is scrapped with the airbags and seat belt pretensioners left
as they are, this may cause an accident such as fire. Be sure to have the systems of
the SRS airbag and seat belt pretensioner removed and disposed of by a qualified
service shop or by your Lexus dealer before you scrap your vehicle.
Perchlorate Material
Special handling may apply, See www.dtsc.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate. These components may
include airbag, seat belt pretensioners, and wireless remote control batteries.
Page 25 of 487

Before driving1
23
RX400h_U
1-1. Hybrid system .................. 24Hybrid system ............................ 24
1-2. Key information ............... 34 Keys ............................................... 34
1-3. Opening, closing and locking the doors ........... 36
Wireless remote control ......... 36
Side doors.................................... 39
Back door .................................... 44
1-4. Adjustable components (seats, mirrors,
steering wheel) .............. 49
Front seats ................................... 49
Rear seats .................................... 52
Driving position memory ........ 55
Head restraints .......................... 57
Seat belts .................................... 58
Steering wheel (manually adjustable type) ...................... 65
Steering wheel (power-adjustable type) ....... 66
Anti-glare inside rear view mirror ......................................... 67
Outside rear view mirrors ...... 68
Roof luggage carrier................ 70 1-5. Opening and closing the
windows and
moon roof ........................ 72
Power windows .......................... 72
Moon roof ................................... 75
1-6. Refueling .......................... 78 Opening the fuel tank cap ..... 78
1-7. Theft deterrent system ... 83 Hybrid vehicle immobilizer system ........................................ 83
Alarm............................................ 85
Theft prevention labels (U.S.A.)...................................... 88
1-8. Safety information........... 89 Correct driving posture ......... 89
SRS airbags ................................. 91
Front passenger occupant classification system............ 103
Child restraint systems ......... 108
Installing child restraints........ 112
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91
1
1-8. Safety information
Before driving
RX400h_U
SRS airbags
The SRS airbags inflate when the vehicle is subjected to certain types of
severe impacts that may cause significant injury to the occupants. They
work together with the seat belts to help reduce the risk of death or serious
injury.
Front airbags
Driver airbag/front passenger airbag
Can help protect the head and chest of the driver and front passen-
ger from impact with interior components.
Driver knee airbag
Can help provide driver protection.
Side and curtain shield airbags
Side airbags
Can help protect the torso of the front seat occupants.
Curtain shield airbags
Can help protect primarily the head of outside occupants.
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92
1-8. Safety information
RX400h_U
Airbag system componentsYour vehicle is equipped with ADVANCED AIRBAGS designed based
on US motor vehicle safety standards (FMVSS208). The airbag system
controls airbag deployment power for the driver and front passenger. The
driver airbag system consists of the driver seat’s position sensor etc. The
front passenger’s airbag system consists of the front passenger occupant
classification sensor etc.
The main SRS airbag system components are shown above. The SRS
airbag system is controlled by the airbag sensor assembly. The airbag
sensor assembly consists of a sa fing sensor and an airbag sensor.
Front passenger airbag
Curtain shield airbags
Side airbags
Occupant detection system
(ECU and sensors)
AIR BAG ON and AIR BAG
OFF indicator lights
SRS warning light
Driver airbag
Curtain shield airbag sensors
Side and curtain shield airbag
sensors
Driver's seat belt buckle switch
Driver's seat position sensor
Driver knee airbag
Airbag sensor assembly
Front airbag sensors
Front passenger’s seat belt
buckle switch