Page 3 of 622

TABLE OF CONTENTSIndex
2
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
1-1. Hybrid systemHybrid system................................... 24
1-2. Key information Keys ...................................................... 35
1-3. Opening, closing and locking the doors and trunk
Smart access system with push-button start................. 39
Wireless remote control ............... 51
Doors.................................................... 54
Trunk..................................................... 59
1-4. Adjustable components (seats, mirrors, steering wheel)
Front seats .......................................... 64
Driving position memory system ............................................... 66
Head restraints................................. 70
Seat belts ............................................ 74
Steering wheel................................... 81
Inside rear view mirror.................. 82
Outside rear view mirrors .......... 83 1-5. Opening and closing
the windows and moon roof
Power windows............................... 85
Moon roof ......................................... 88
1-6. Refueling Opening the fuel tank cap............ 91
1-7. Theft deterrent system Immobilizer system ........................ 96
Alarm.................................................... 98
Theft prevention labels (U.S.A.) ........................................... 100
1-8. Safety information Correct driving posture .............. 101
SRS airbags ..................................... 103
Front passenger occupant classification system .................... 115
Child restraint systems ................. 121
Installing child restraints ............. 125
1Before driving
GS450h_HV_U.book Page 2 Monday, April 27, 2009 10:10 AM
Page 7 of 622
TABLE OF CONTENTSIndex
6
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
6-1. SpecificationsMaintenance data (fuel, oil level, etc.)..................... 564
Fuel information ............................ 574
Tire information............................. 577
6-2. Customization Customizable features.............. 590
6-3. Initialization Items to initialize .......................... 596
Reporting safety defects for U.S. owners.......................... 598
Seat belt instructions for Canadian owners
(in French) ................................... 599 Abbreviation list........................ 602
Alphabetical index ................... 604
What to do if... .............................. 614
6Vehicle specifications
7For owners
Index
GS450h_HV_U.book Page 6 Monday, April 27, 2009 10:10 AM
Page 10 of 622
9
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Tire
●Rotation
● Replacement
● Inflation pressure
● Information
P. 452
P. 536
P. 572
P. 577
Tail lights P. 169
Side marker light P. 169
Trunk P. 59
Rear window defogger P. 256
Door P. 54
Fuel filler door P. 91
Turn signal light P. 156
∗: If equipped
GS450h_HV_U.book Page 9 Monday, April 27, 2009 10:10 AM
Page 15 of 622
14
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Pictorial indexInstrument panel
Headlight switch
Turn signal lever
Fog light switch P. 169
P. 156
P. 172
Gauges and meters P. 159
Multi-information display P. 166Windshield wipers and
washer switch
P. 173
“POWER” switch P. 148
Parking brake pedal P. 157
Trunk opener main switch
P. 59
Glove box
P. 373
Hood lock release lever P. 435
Trunk opener P. 59
Fuel filler door opener P. 91
Horn P. 158
GS450h_HV_U.book Page 14 Monday, April 27, 2009 10:10 AM
Page 19 of 622

18
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
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.
Noise from under vehicle after turning off the hybrid system
Approximately five hours after the hybrid system is turned off, you may hear sound
coming from under the vehicle for several minutes. This is the sound of a fuel evapo-
ration leakage check and, it does not indicate a malfunction.
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.
GS450h_HV_U.book Page 18 Monday, April 27, 2009 10:10 AM
Page 20 of 622

19
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Installation of a mobile two-way radio system
As the installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as the hybrid system, multiport fuel injection system/
sequential multiport fuel injection system, dynamic radar cruise control system,
cruise control system, anti-lock brake system, vehicle dynamics integrated manage-
ment, SRS airbag system and seat belt pretensioner system, be sure to check with
your Lexus dealer for precautionary measures or special 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.
Unwanted noise may occur in the reception of the mobile two-way radio.
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.
GS450h_HV_U.book Page 19 Monday, April 27, 2009 10:10 AM
Page 24 of 622

Before driving1
23
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
1-1. Hybrid systemHybrid system ............................ 24
1-2. Key information Keys ............................................... 35
1-3. Opening, closing and locking the doors and trunk
Smart access system with push-button start ........... 39
Wireless remote control .......... 51
Doors ............................................ 54
Trunk ............................................. 59
1-4. Adjustable components (seats, mirrors,
steering wheel)
Front seats ................................... 64
Driving position memory system ........................................ 66
Head restraints .......................... 70
Seat belts ..................................... 74
Steering wheel ............................ 81
Inside rear view mirror ........... 82
Outside rear view mirrors ..... 83 1-5. Opening and closing
the windows and moon roof
Power windows .......................... 85
Moon roof ................................... 88
1-6. Refueling Opening the fuel tank cap ...... 91
1-7. Theft deterrent system Immobilizer system .................. 96
Alarm............................................ 98
Theft prevention labels (U.S.A.).................................... 100
1-8. Safety information Correct driving posture ........ 101
SRS airbags .............................. 103
Front passenger occupant classification system............. 115
Child restraint systems .......... 121
Installing child restraints....... 125
GS450h_HV_U.book Page 23 Monday, April 27, 2009 10:10 AM
Page 25 of 622
24
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
1-1. Hybrid system
Hybrid system
Your vehicle is a hybrid vehicle. It has characteristics different from con-
ventional vehicles. Be sure you are closely familiar with the characteristics
of your vehicle, and operate with care.
The hybrid system combines a gasoline engine and an electric motor (trac-
tion motor) according to driving conditions, improving fuel efficiency and
reducing exhaust emissions.
Gasoline engine
Electric motor (Traction motor)
GS450h_HV_U.book Page 24 Monday, April 27, 2009 10:10 AM