2010 Lexus GS450h fuel

TABLE OF CONTENTSIndex
2
GS_HV_U (OM30C81U)
February 1, 2010 10:54 am
For your information ....................... 18
Symbols used throughout this 
manual ............................................... 21
1-1. Hybrid system
Hybrid system ................................... 24
1-2. Key information
Keys ...................................................... 36
1-3. Opening, closing and locking 
the doors and trunk
Smart access system with 
push-button start ........................... 41
Wireless remote control .............. 53
Doors.................................................... 55
Trunk..................................................... 60
1-4. Adjustable components 
(seats, mirrors, steering wheel)
Front seats .......................................... 65
Driving position memory 
system ............................................... 67
Head restraints................................. 72
Seat belts ............................................ 75
Steering wheel.................................. 82
Inside rear view mirror ................. 83
Outside rear view mirrors .......... 851-5. Opening and closing the windows
and moon roof
Power windows................................ 87
Moon roof .......................................... 90
1-6. Refueling
Opening the fuel tank cap........... 94
1-7. Theft deterrent system
Immobilizer system ........................ 99
Alarm................................................... 101
Theft prevention labels 
(U.S.A.) ........................................... 104
1-8. Safety information
Correct driving posture ............. 105
SRS airbags ..................................... 107
Front passenger occupant 
classification system .................... 119
Child restraint systems ............... 124
Installing child restraints ............. 128
1Before driving

TABLE OF CONTENTSIndex
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GS_HV_U (OM30C81U)
February 1, 2010 10:54 am
5-2. Steps to take in an emergency
If a warning light turns 
on or a warning buzzer 
sounds... ......................................... 534
If a warning message is 
displayed ....................................... 543
If you have a flat tire (Vehicles 
with standard tires) .................. 560
If you have a flat tire (Vehicles 
with run-flat tires) ...................... 570
If the hybrid system will not 
start ................................................. 572
If the shift lever cannot be shifted 
from “P” ......................................... 573
If you lose your keys .................... 574
If the electronic key does not 
operate properly ....................... 575
If the 12 volt battery is 
discharged ................................... 578
If your vehicle overheats ............ 581
If the vehicle becomes 
stuck............................................... 584
If your vehicle has to be stopped 
in an emergency ....................... 5866-1. Specifications
Maintenance data 
(fuel, oil level, etc.).................... 588
Fuel information ........................... 598
Tire information.............................. 601
6-2. Customization
Customizable features................ 615
6-3. Initialization
Items to initialize ............................ 621
Reporting safety defects 
for U.S. owners........................... 624
Seat belt instructions 
for Canadian owners 
(in French) .................................... 625
Abbreviation list........................ 628
Alphabetical index ................... 630
What to do if... ............................ 640
6Vehicle specifications
7For owners
Index

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GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
Tire
●Rotation
●Replacement
●Inflation pressure
●Information
P. 475
P. 560
P. 596
P. 601
Tail lights P. 171
Side marker light P. 171
Trunk P. 60
Rear window defogger P. 268
Door P. 55
Fuel filler door P. 94
Turn signal light P. 158
: If equipped

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GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
Pictorial indexInstrument panel
Headlight switch
Turn signal lever
Fog light switch P. 171
P. 158
P. 174
Gauges and meters P. 161
Multi-information display P. 168Windshield wipers and
washer switch
P. 175
Power (ignition) switch
P. 150
Parking brake pedal P. 159
Trunk opener main switch
P. 60
Glove box
P. 400
Hood lock release lever P. 457
Trunk opener P. 60
Fuel filler door opener P. 94
Horn P. 160
Pre-collision braking off switch
P. 221

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GS_HV_U (OM30C81U)
January 28, 2010 8:25 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.

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GS_HV_U (OM30C81U)
January 28, 2010 8:25 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.

Before driving1
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GS_HV_U (OM30C81U)
January 28, 2010 11:26 am
1-1. Hybrid system
Hybrid system ............................ 24
1-2. Key information
Keys ............................................... 36
1-3. Opening, closing and locking 
the doors and trunk
Smart access system with 
push-button start ..................... 41
Wireless remote control ......... 53
Doors ............................................ 55
Trunk ............................................. 60
1-4. Adjustable components 
(seats, mirrors, steering 
wheel)
Front seats ................................... 65
Driving position memory 
system ........................................ 67
Head restraints .......................... 72
Seat belts ..................................... 75
Steering wheel .......................... 82
Inside rear view mirror ........... 83
Outside rear view mirrors ..... 851-5. Opening and closing the 
windows and moon roof
Power windows .......................... 87
Moon roof ................................... 90
1-6. Refueling
Opening the fuel tank cap ..... 94
1-7. Theft deterrent system
Immobilizer system .................. 99
Alarm........................................... 101
Theft prevention labels 
(U.S.A.).................................... 104
1-8. Safety information
Correct driving posture ....... 105
SRS airbags .............................. 107
Front passenger occupant 
classification system............. 119
Child restraint systems ......... 124
Installing child restraints....... 128

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GS_HV_U (OM30C81U)
February 12, 2010 8:52 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)