light Lexus GS450h 2008 Scheduled Maintenace Guide / LEXUS 2008 GS450H (OM30A96U) Owner's Guide

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1-5. Opening and closing the windows and moon roof
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Before driving
GS_HV_U
December 12, 2007 3:50 pm
■The moon roof can be operated when
The “POWER” switch is in ON mode.
■Linked door lock moon roof operation
●The moon roof can be opened and closed using the mechanical key. (P. 5 3 1 )
●The moon roof can be opened using the wireless remote control. ( P. 4 7 )
●The moon roof can be closed using the smart access system with push-button
start. ( P. 3 5 )
■Operating the moon roof after turning the “POWER” switch OFF
The moon roof can be operated for ap proximately 45 seconds even after the
“POWER” switch is switched to ACCESSORY mode or turned OFF. It cannot,
however, be operated once the driver’s door is opened.
■Jam protection function
If an object is detected between the moon roof and the frame while closing or tilting
down, travel is stopped and the moon roof opens slightly.
■If the moon roof cannot be closed automatically
Keep the close switch depressed.
■To reduce moon roof wind noise
Drive with the moon roof opened automati cally ( just before fully opened position).
■Sunshade
The sunshade can be opened and closed manually. However, the sunshade will
open automatically when the moon roof is opened.
■Customization that can be configured at Lexus dealer
Settings (e.g. linked door lock operation) can be changed. 
(Customizable features  P. 5 7 1 )

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1-6. Refueling
GS_HV_U
December 12, 2007 3:50 pm
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

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GS_HV_U
December 12, 2007 3:30 pm
1-7. Theft deterrent system
Immobilizer system
■System maintenance
The vehicle has a maintenance-free type of immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object.
●If the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle.
■Certifications for the immobilizer system For vehicles sold in the U.S.A.
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
The vehicle’s keys have built-in transponder chips that prevent the hybrid
system from starting if the key has not been previously registered in the
vehicle’s on-board computer. 
Never leave the keys inside the vehicle when you leave the vehicle.
The indicator light flashes after
the “POWER” switch has been
turned OFF to indicate that the
system is operating.
FCC ID: NI4TMIMB-1

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1-7. Theft deterrent system
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December 12, 2007 3:30 pm
Alarm
The system sounds the alarm and flashes lights when forcible entry is
detected.
■Triggering of the alarm
The alarm is triggered in the following situations.
●A locked door or trunk is unlocked or opened in any way other
than using the smart access system with push-button start, wire-
less remote control or mechanical key. (The doors will lock again
automatically.)
● The hood is opened while the vehicle is locked.
■ Setting the alarm system
Close the doors, trunk and
hood, and lock all doors.
The system will be set automati-
cally after 30 seconds.
The indicator light changes from
being on to flashing when the
system is set.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm.
●Unlock the doors or trunk.
● Turn the “POWER” switch to the ACCESSORY or ON mode.
(The alarm will be deactivated or stopped after a few seconds.)

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1-7. Theft deterrent system
1
Before driving
GS_HV_U
December 12, 2007 3:30 pm
■Items to check before locking the vehicle
To prevent unintended triggering of the alarm and vehicle theft, make sure of the
following.
●Nobody is in the vehicle.
●The windows and moon roof (if equipped) are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Tr i g g e r i n g o f t h e a l a r m
The alarm may be triggered in the following situations.
(Stopping the alarm deactivates the alarm system.)
●A person inside the vehicle opens a door, the trunk or hood.
●The 12 volt battery is recharged or replaced when the vehicle is locked.
■When the 12 volt battery is disconnected
Be sure to cancel the alarm system. 
If the 12 volt battery is disconnected before canceling the alarm, the system may be
triggered when the battery is reconnected.
■Pa n i c m o d e
When is pushed for longer than about
one second, the headlights/tail lights/emer-
gency flashers will flash, the front and rear
interior lights will come on, and an alarm will
sound for about 60 seconds to deter any
person from trying to break into or damage
your vehicle.
To stop the alarm, push any button on the
wireless remote control.

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1-8. Safety information
GS_HV_U
December 12, 2007 3:50 pm
Airbag system components
Occupant detection system
(ECU and sensors)
Front passenger’s seat belt
buckle switch
Knee airbag
Front passenger airbag
Curtain shield airbag
Front side airbag
Side and curtain shield airbag
sensorCurtain shield and rear side
airbag sensor
SRS warning light
Rear side airbag (if equipped)
Driver airbag
Driver’s seat belt buckle switch
Driver’s seat position sensor
“A I R B A G O N ” a n d “A I R B A G
OFF” indicator lights
Airbag sensor assembly
Front airbag sensor
Curtain shield airbag

Can help protect primarily the head of front occupants and rear out-
board occupants.

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1-8. Safety information
1
Before driving
GS_HV_U
December 12, 2007 3:50 pm
Your 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 consist s of the driver’s seat position sensor etc. The
front passenger’s airbag system consist s of the front passenger occupant
classification sensor etc.
The main SRS airbag system componen ts are shown above. The SRS air-
bag system is controlled by the airb ag sensor assembly. The airbag sen-
sor assembly consists of a safing sensor and an airbag sensor.
In certain types of severe frontal or side impacts, the SRS airbag system
triggers the airbag inflators. A chemica l reaction in the inflators quickly
fills the airbags with non-toxic gas to he lp restrain the motion of the occu-
pants.
■If the SRS airbags deploy (inflate)
●Bruising and slight abrasions may result from contact with a deploying (inflating)
SRS airbag.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel hub, airbag cover and inflator) as
well as the seats, and parts of the front pillar and roof side rail, may be hot for
several minutes. The airbag itself may also be hot.
●The windshield may crack.

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1-8. Safety information
GS_HV_U
December 12, 2007 3:50 pm
CAUTION
■SRS airbag precautions
Observe the following precautions regarding the airbags. Failure to do so may
cause death or serious injury.
●The driver and all passengers in the vehicle must wear their seat belts properly.
The SRS airbags are supplemental devices to be used with the seat belts.
●The SRS driver airbag deploys with considerable force, and can cause death or
serious injury especially if the driver is very close to the airbag. The National
Highway Traffic Safety Administration (“NHTSA”) advises:
Since the risk zone for driver airbag is th e first 2 - 3 in. (50 - 75 mm) of inflation,
placing yourself 10 in. (250 mm) from your driver airbag provides you with a
clear margin of safety. This distance is measured from the center of the steering
wheel to your breastbone. If you sit less than 10 in. (250 mm) away now, you can
change your driving position in several ways:
• Move your seat to the rear as far as you can while still reaching the pedals
comfortably.
• Slightly recline the back of the seat. Al though vehicle designs vary, many driv-
ers can achieve the 10 in. (250 mm) distan ce, even with the driver seat all the
way forward, simply by reclining the back of the seat somewhat. If reclining
the back of your seat makes it hard to see the road, raise yourself by using a
firm, non-slippery cushion, or raise the seat if your vehicle has that feature.
• If your steering wheel is adjustable, ti lt it downward. This points the airbag
toward your chest instead of your head and neck.
The seat should be adjusted as recommended by NHTSA above, while still main-
taining control of the foot pedals, steering wheel, and your view of the instrument
panel controls.

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1
1-8. Safety information
Before driving
GS_HV_U
December 12, 2007 3:50 pm
Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classification sys-
tem. This system detects the conditions of the front passenger seat and
activates or deactivates the devices for front passenger.
SRS warning light
“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light
Front passenger’s seat belt reminder light

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1-8. Safety information
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December 12, 2007 3:50 pm
Condition and operation in the front passenger occupant classification system
■Adult*1
■Child*3 or child restraint system*4
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “A I R B A G
ON”
SRS warning light Off
Front passenger’s seat belt reminder light Flashing
*2
DevicesFront passenger airbag and knee airbag
Activated
Side airbag in the front passenger seat
Curtain shield airbag
on the front passenger side
Front passenger’s seat belt pretensioner
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “A I R B A G
OFF”*5
SRS warning light Off
Front passenger’s seat belt reminder light Flashing
*2
DevicesFront passenger airbag and knee airbag
Deactivated
Side airbag in the front passenger seat
Curtain shield airbag
on the front passenger side Activated
Front passenger’s seat belt pretensioner