2007 Lexus GS450h Using the audio system / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. OWNER'S MANUAL (OM30727U)

xvii
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 deal er before you scrap your vehicle.
Smart access system with push-button start
Users of any electrical medical devices such as implanted pacemakers should con -
sult the manufacturer of the device for information about its operation under the
influence
of radio waves. Radio waves could have unexpected effects on the opera -
tion of such me dical de
vices. (P. 1 2 , 14 )
Leak detection pump (for the U.S.A. and Canada)
This pump performs fuel evaporation leakage check. This check is conducted sev -
eral hours after the hybrid system is turn ed of
f. You may hear a sound coming from
underneath the trunk for several minutes, however this does not indicate a malfunc-
tion.

xviii
CAUTION
■General precautions while driving
Driving under the influence: Never drive your vehicle when under the influence of
alcohol or drugs that have impaired your ability to operate your vehicle. Alcohol
and certain drugs delay reaction time, im pair judgment and reduce coordination,
which could lead to an accident that will hurt or kill you, your occupants or others.
Defensive driving: Always drive defensively. Anticipate mistakes that other drivers
or pedestrians might make and be ready to avoid accidents.
Driver distraction: Always give your full at tention to driving. Anything that distracts
the driver, such as adjusting controls, ta lking on a cellular phone or reading can
result in a collision with resulting death or serious injury to you, your occupants or
others.
■When children are in the vehicle
Never leave children unattended in the vehicle.
When left unattended, children may be able to start the vehicle or shift the vehicle
into neutral. There is also a danger that children may injure themselves by playing
with the cigarette lighter, the windows, the moon roof, or other features of the vehi-
cle. In addition, heat build-up or extremel y cold temperatures inside the vehicle can
be fatal to children.
■Dispose of the hybrid battery (traction battery)
If your vehicle is disposed of without the hybrid battery having been removed, there
is a danger of serious electric shock if high voltage parts, cables and their connec-
tors are touched. In the event of that your vehicle must be disposed of, the hybrid
battery must be disposed of your Lexus dealer or a qualified service shop. If the
hybrid battery is not disposed of properly , they may cause electric shock that can
result in death or serious injury.

xix
Symbols used throughout this manual
Cautions & Notices
Safety symbol
CAUTION
This is a warning against anything which may cause injury to people if the warning is
ignored. You are informed about what you must or must not do in order to reduce the
risk of injury to yourself and others.
NOTICE
This is a warning against anything which may cause damage to the vehicle or its
equipment if the warning is ignored. You are informed about what you must or must
not do in order to avoid or reduce the risk of damage to your Lexus and its equipment.
Throughout this manual, you will also see the symbol of a circle
with a slash through it. This mea ns “Do not”, “Do not do this”, or
“Do not let this happen”.

xx

Before driving1
1
1-1. Hybrid system ............................... 2Hybrid system ................................... 2
1-2. Key information.......................... 12 Keys..................................................... 12
1-3. Opening, closing and locking 
the doors and trunk................. 14
Smart access system with 
push-button start ........................ 14
Wireless remote control............ 23
Doors................................................. 26
Trunk .................................................. 30
1-4. Adjustable components .......... 34 Front seats ....................................... 34
Driving position memory 
system ............................................ 36
Head restraints.............................. 39
Seat belts ......................................... 42
Steering wheel............................... 48
Inside rear view mirror ............... 49
Outside rear view mirrors ....... 50 1-5. Opening and closing the

windows and moon roof ....... 52
Power windows ............................. 52
Moon roof ....................................... 55
1-6. Refueling ..................................... 58 Opening the fuel tank cap ....... 58
1-7. Anti-theft system ...................... 62 Hybrid vehicle immobilizer 
system ............................................ 62
Alarm ................................................ 64
Theft prevention labels 
(U.S.A.) .......................................... 66
1-8. Safety information .................... 67 Correct driving posture ............. 67
SRS airbags .................................... 69
Child restraint systems .............. 80
Installing child restraints ............ 83

2
1-1. Hybrid system
Hybrid system
Your vehicle is a hybrid vehicle. It has characteristics different from con-
ventional vehicles. Be sure you are clos ely familiar
with the characteristics
of your vehicle, and operate with care.
The hybrid system combines a gasoline e
ngine and an electric motor (trac-
tion motor) according to driving conditions, improving fuel efficiency and
r
educing exhaust emissions.
Gasoline engine
Electric motor (Traction motor)
■ When stopped/
during take-off
The gasoline engine stops when the v
ehicle is stopped. During take-
off, the electric motor (traction motor) drives the vehicle. At slow
speeds or when traveling down a ge ntle slope, the engine is stopped
and the motor is used.

3
1-1. Hybrid system
1
Before driving
■Regenerative braking
The motor generator converts kinetic energy to electric energy when:
●The accelerator pedal is released.
●The brake pedal is depressed with the shift lever in “D” or “S”.
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and
stops automatically. However, it may not stop auto -
matically in the following conditions:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●During low or high hybrid battery (traction battery) temperature
■Charging the battery
●As the gasoline engine charges the hybrid battery (traction battery), the battery
does not need to be charged from an outside source. However, if the vehicle is
left parked for a long time the hybrid battery will slowly discharge. For this rea -
son, be sure to drive the vehicle at least once every few months for at least 30
min
utes or 10 miles (16 km). If the hybrid battery becomes fully discharged and
you are unable to jump-start the vehicle with the 12 volt battery, contact your
Lexus dealer.
●If the shift lever is in “N”, the hybrid battery (traction battery) will not be
charged. When driving in heavy traffic, operate the vehicle with the shift lever in
“D” or “S” to avoid discharging the battery.
■ During normal driving
The gasoline engine is predomina ntly used. The electric motor
(traction motor) charges the hybrid battery as necessary.
■ When acceler
ating sharply
The power of the hybrid battery (tr action batter
y) is added via elec-
tric motor (traction motor) to th at of the gasoline engine.
■ When br
aking (Regenerative brake)
The electric motor (traction motor) char
ges the hybrid battery
(traction battery).

4
1-1. Hybrid system
■After the 12 volt battery has discharged or has been changed or removed
The gasoline engine may not stop even if the vehicle is running on the hybrid battery
(traction battery). If this continues for a few days, contact your Lexus dealer.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sounds or vibrat ion even though the vehicle is able to
move. Always put the shift lever in “P” when parked.
The following sounds or vibrations may occu r when the hybrid system is operating,
and are not a malfunction.
●Motor sounds may be heard fr om the engine compartment.
●Sounds may be heard from the hybrid ba ttery (traction battery) behind the rear
seat when the hybrid system starts or stops.
●Sounds may be heard from the transmissi on when the hybrid system starts or
stops.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard from the regenerative brake when you press the brake
pedal.
●Vibration may be felt when the gasoline engine starts or stops.
●You may hear cooling fan sounds coming from the air intake vents behind the
rear seat.
■Maintenance, repair, recycling, and disposal
Contact your Lexus dealer regarding main tenance, repair, recycling and disposal.
Do not dispose of the vehicle yourself.