Page 3 of 487
TABLE OF CONTENTS
RX400h_U
1
1Before drivingAdjusting and operating features such as door locks, mir-
rors, and steering column.
2When drivingDriving, stopping and safe-driving information.
3Interior featuresAir conditioning and audio systems, as well as other interior
features for a comfortable driving experience.
4Maintenance
and careCleaning and protecting your vehicle, performing do-it-your-
self maintenance, and maintenance information.
5When trouble
arisesWhat to do if the vehicle needs to be towed, gets a flat tire,
or is involved in an accident.
6Ve h i c l e
specificationsDetailed vehicle information.
7For ownersReporting safety defects for U.S. owners and seat belt in-
structions for Canadian owners
IndexAlphabetical listing of information contained in this manual.
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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
Page 6 of 487

TABLE OF CONTENTSIndex
RX400h_U
4
Using the DVD player (MP3 discs) ................................. 249
Using the video mode ................. 251
Changing the initial setting ...... 253
3-4. Using the interior lights .......... 260 Interior lights list........................... 260
• Interior lights ............................... 263
• Personal lights ............................ 264
3-5. Using the storage features .... 265 List of storage features............... 265
• Glove box..................................... 265
• Console boxes ........................... 266
• Coin holder................................. 268
• Overhead console.................... 269
• Cup holders................................. 269
• Door pockets ............................... 271
3-6. Other interior features........... 272 Sun visors......................................... 272
Vanity mirror .................................. 273
Clock ................................................. 274
Outside temperature display ............................................ 275
Multi-display light control ......... 276
Power outlets ................................. 277
Seat heaters ................................... 280
Armrest ............................................ 282
Floor mat......................................... 283
Luggage compartment features......................................... 284
Garage door opener.................. 287
Compass.......................................... 292 4-1. Maintenance and care............ 298
Cleaning and protecting the vehicle exterior ......................... 298
Cleaning and protecting the vehicle interior............................. 301
4-2. Maintenance............................. 304 Maintenance requirements .... 304
General maintenance ............... 306
Emission inspection and maintenance (I/M)
programs ..................................... 309
4-3. Do-it-yourself maintenance ... 310 Do-it-yourself service precautions ................................... 310
Hood................................................... 313
Positioning a floor jack................ 314
Engine compartment................... 316
Tires .................................................... 331
Tire inflation pressure................ 340
Wheels.............................................. 344
Air conditioning filter.................. 346
Wireless remote control battery ........................................... 348
Rear seat entertainment system controller...................... 350
Checking and replacing fuses ................................................ 352
4Maintenance and care
Page 12 of 487
10
B
Pictorial indexInterior
Driving position memory switches ∗ P. 55
Door lock switch P. 39
Window lock switch P. 72
Power window switches P. 72
Inside lock button P. 40
Page 13 of 487
11
C
Shift lever P. 135
Power outlet P. 277
Shift lock overridebutton
P. 419
Headlight cleaner switch ∗ P. 156
Power outlet P. 277
Seat heater switches ∗ P. 280
∗: If equipped
Page 16 of 487
14
Pictorial indexInstrument panel
Headlight switch Turn signal lever Fog light switch P. 148
P. 136
P. 151
Power back door main switch ∗ P. 45
Tilt steering lock release lever ∗ P. 65
Tilt and telescopic steering control switch ∗ P. 66
Parking brake pedal P. 137
Tire pressure warning reset switch P. 332
Hood release lever P. 313
Gauges and meters P. 138
Audio remote control switches P. 231
Glove box P. 265
Tire pressure warning select switch P. 335
Engine (ignition) switch P. 131
Page 17 of 487
15
Without navigation system
With navigation system
∗: If equipped
*: Refer to “Navigation System Owner's Manual”.
Security indicator
P. 83, 85
Audio system
P. 205
Multi-display light
control button
P. 276
●Trip information display
● Outside temperature
display
● Clock
● Automatic air condi-
tioning display
P. 146
P. 275
P. 274
P. 198
Audio system*
Air conditioning
system
*
Rear view monitor/
navigation system
*
Multi-display
Trip information display
control button
P. 146
Air conditioning system
P. 198
Rear window and outside
rear view mirror defog-
gers, and windshield wip-
er de-icer
∗ P. 204
Rear window and outside
rear view mirror defog-
gers, and windshield wip-
er de-icer
∗ P. 204
Security indicator
P. 83, 85
A
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.