2007 Lexus GS450h fuel cap

TABLE OF CONTENTSIndex
ii
1-1. Hybrid system .................................. 2Hybrid system ...................................... 2
1-2. Key information ............................. 11 Keys ......................................................... 11
1-3. Opening, closing and locking 
the doors and trunk ................... 13
Smart access system with  push-button start ........................... 13
Wireless remote control .............. 22
Doors.................................................... 25
Trunk..................................................... 29
1-4. Adjustable components ............ 33 Front seats .......................................... 33
Driving position memory 
system ............................................... 35
Head restraints................................ 38
Seat belts ............................................ 40
Steering wheel.................................. 46
Inside rear view mirror .................. 47
Outside rear view mirrors ........... 48
1-5. Opening and closing the 
windows and moon roof .......... 50
Power windows............................... 50
Moon roof .......................................... 52 1-6. Refueling ........................................ 55
Opening the fuel tank cap........... 55
1-7. Theft deterrent system............... 59 Hybrid vehicle immobilizer 
system ............................................... 59
Alarm..................................................... 61
Theft prevention labels 
(U.S.A.) ............................................. 63
1-8. Safety information ....................... 64 Correct driving posture ............... 64
SRS airbags ....................................... 66
Front passenger occupant 
classification system .................... 77
Child restraint sy stems ................. 82
Installing child restraints .............. 85
2-1. Driving procedures..................... 96 Driving the vehicle .......................... 96
Starting the hybrid system ......... 103
Transmission ................................... 106
Turn signal lever.............................. 110
Parking brake .................................... 111
2-2. Instrument cluster ...................... 112 Gauges and meters ....................... 112
Indicators and warning lights ..... 116
Multi-information display............. 119
1Before driving
2When driving

Before driving1
1
1-1. Hybrid system ............................... 2Hybrid system ................................... 2
1-2. Key information ........................... 11 Keys....................................................... 11
1-3. Opening, closing and locking 
the doors and trunk................. 13
Smart access system with 
push-button start ........................ 13
Wireless remote control............ 22
Doors................................................. 25
Trunk .................................................. 29
1-4. Adjustable components ......... 33 Front seats ....................................... 33
Driving position memory 
system ............................................ 35
Head restraints .............................. 38
Seat belts ......................................... 40
Steering wheel............................... 46
Inside rear view mirror ............... 47
Outside rear view mirrors ........ 48 1-5. Opening and closing the

windows and moon roof ....... 50
Power windows ............................. 50
Moon roof ....................................... 52
1-6. Refueling ..................................... 55 Opening the fuel tank cap ....... 55
1-7. Theft deterrent system............ 59 Hybrid vehicle immobilizer 
system ............................................ 59
Alarm .................................................. 61
Theft prevention labels 
(U.S.A.) .......................................... 63
1-8. Safety information .................... 64 Correct driving posture ............ 64
SRS airbags .................................... 66
Front passenger occupant 
classification system.................. 77
Child restraint systems .............. 82
Installing child restraints ............ 85

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1
Before driving
1-6. Refueling
Opening the fuel tank cap
Perform the following steps to open the fuel tank cap.
■Before refueling the vehicle
Turn the power switch “OFF” and ensure that all the doors and win-
dows are closed.
■ Opening the fuel tank cap
Press the fuel filler door
opener switch.
The screen to the left is dis-
played for a short period. Wait
until “REFUEL READY” is dis-
played, then proceed to the next
step.
Turn the fuel tank cap slowly to
open.
STEP1
STEP2
STEP3

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1-6. Refueling
Closing the fuel tank capAfter refueling, turn the fuel tank
cap clockwise until you hear a
click. The cap will revolve slightly in
the opposite direction once
released.
Hang the fuel tank cap on the
back of the fuel filler door.STEP4
■Fuel types
Use premium unleaded gasoline. (91 Octane Rating [Research Octane Number
96] or higher)
■Fuel tank capacity
Approximately 17.2 gal. (65 L, 14.3 Imp. gal.)
■Open fuel filler door warning
 P. 4 5 6

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1-6. Refueling
1
Before driving
■When the fuel filler door opener switch is inoperable
CAUTION
■When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so, may
result in death or serious injury.
●Touch the vehicle or some other metal surface to discharge any static electricity.
Sparks resulting from discharging static electricity may cause the fuel vapors to
ignite.
●Always hold the grips on the fuel tank cap and turn it slowly to remove it. 
A whooshing sound may be heard when the fuel tank cap is loosened. Wait until
the sound cannot be heard before fully re moving the cap. In hot weather, pressur-
ized fuel may spray out the filler neck and cause injury.
●Do not allow anyone that has not discharged static electricity from their bodies to
come close to an open fuel tank.
●Do not inhale vaporized fuel.
Fuel contains substances that are harmful if inhaled.
●Do not smoke while refueling the vehicle. 
Doing so may cause the fuel to ignite and cause a fire.
●Do not return to the vehicle or touch an y person or object that is statically
charged. 
This may cause static electricity to build up , resulting in a possible ignition hazard.
If the fuel filler door opener switch is inopera-
ble, contact your Lexus dealer to service the
vehicle. If you must refuel your vehicle, you
can open the fuel filler door manually as
shown. The system to lower internal pressure
may not be functioning so you must turn the
cap slowly as the pressure releases. In addi-
tion, fuel may spill out during refueling. Fill the
fuel tank carefully and slowly.

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1-6. Refueling
CAUTION
■When replacing the fuel tank cap
Do not use anything but a genuine Lexus fuel tank cap designed for your vehicle.
Failure to do so may cause a fire or other incident which may result in death or seri-
ous injury.
NOTICE
■Refueling
●Finish refueling within 30 minutes. If more than 30 minutes passes, the internal
valve closes. In this condition, fuel may overflow during the refueling process.
Press the fuel filler d oor opener switch again.
●Do not spill fuel during refueling. 
Failing to do so may damage the vehicle, such as causing the exhaust systems to
operate abnormally or damaging fuel system components or the vehicle's
painted surface.

172
2-5. Driving information
Cargo and luggage
Capacity and distributionCargo capacity depends on the to tal weight of the occupants.
(Cargo capacity) = (Total load capa city) — (Total weight of occupants)
Steps for Determining Correct Load Limit—
(1) Locate the statement “The combined weight of occupants and cargo should never exceed XXX kg or XXX lbs.” on your vehicle’s
placard.
(2) Determine the combined weight of the driver and passengers that
will be riding in your vehicle.
(3) Subtract the combined weight of the driver and passengers from
XXX kg or XXX lbs.
(4) The resulting figure equals the av ailable amount of cargo and lug-
gage load capacity.
For example, if the “XXX” amount equals 1400 lbs. and there will be
five 150 lb passengers in your vehicl e, the amount of available cargo
and luggage load capacity is 650 lbs. (1400 - 750 (5 150) = 650
lbs.)
(5) Determine the combined weight of luggage and cargo being
loaded on the vehicle.
That weight may not safely exceed the available cargo and luggage
load capacity calculated in Step 4.
Take notice of the following informat ion about storage precautions, cargo
capacity and load.
● Stow cargo and luggage in the trunk whenever possible. Be sure
all items are secured in place.
● Be careful to keep the vehicle level. Placing the weight as far for-
ward as possible helps maintain vehicle balance.
● For better fuel economy, do not carry unnecessary weight.

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4-2. Maintenance
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include
OBD (On Board Diagnostics) checks. The OBD system monitors the oper-
ation of the emission control system.
■ If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere in
the emission control system. Your vehicle may not pass the I/M test
and may need to be repaired. Contact your Lexus dealer to service
the vehicle.
■ Your vehicle may not pass the I/M test:
●When the 12 volt battery is disconnected or discharged
Readiness codes that are set during ordinary driving are erased. 
Also, depending on your driving habits, the readiness codes may
not be completely set.
● When the fuel tank cap is loose
The malfunction indicator lamp comes on as a temporary mal-
function and your vehicle may not pass the I/M test.
■ When the malfunction indicator la mp goes off after several driv-
ing trips
The error code in the OBD system will not be cleared unless the
vehicle is driven 40 or more times.
■ If your vehicle does not pass the I/M test
Contact your Lexus dealer to prep are the vehicle for re-testing.