engine Lexus GS450h 2007 Using the hands-free system (for cellular phone) / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. OWNER'S MANUAL (OM30727U)

TABLE OF CONTENTSIndex
iv
3-4. Using the hands-free 
system........................................ 263
Hands-free system ...................... 263
Using the Bluetooth
® 
phone ............................................ 268
Setting the hands-free 
system ............................................. 281
3-5. Using the interior lights .......... 307 Interior lights list............................ 307
3-6. Using the storage features ...... 311 List of storage fe atures.................. 311
3-7. Other interior features............ 317 Sun visors.......................................... 317
Vanity mirror ................................... 318
Clock .................................................. 319
Outside temperature 
display ........................................... 320
Ashtrays ............................................ 321
Cigarette lighter ........................... 322
Power outlet ................................... 323
Seat heaters ................................... 324
Seat heaters and 
ventilators .................................... 326
Armrest ........................................... 328
Rear sunshade ............................... 329
Floor mats......................................... 331
Trunk features................................ 332
Garage door opener .................. 334
Compass.......................................... 339 4-1. Maintenance and care............ 344
Cleaning and protecting the 
vehicle exterior .......................... 344
Cleaning and protecting the 
vehicle interior............................ 346
4-2. Maintenance.............................. 349 Maintenance requirements ..... 349
General maintenance ................. 351
Emission inspection and 
maintenance (I/M) 
programs ...................................... 354
4-3. Do-it-yourself 
maintenance............................ 355
Do-it-yourself service 
precautions ................................. 355
Hood................................................. 358
Positioning the jack .................... 359
Engine compartment................... 361
Tires ................................................... 375
Tire inflation pressure................ 385
Wheels............................................. 389
Air conditioning filter................... 391
Electronic key battery ................ 393
Checking and replacing 
fuses ............................................... 395
Headlight aim.................................... 411
Light bulbs ........................................ 413
4Maintenance and care

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.

7
1-1. Hybrid system
1
Before driving
To u c h s c r e e nMulti-information display
When the vehicle is
powered by the elec-
tric motor (traction
motor)
When the vehicle is
powered by both the
gasoline engine and the
electric motor (traction
motor)
When the vehicle is
powered by the 
gasoline engine
When the vehicle is
charging the hybrid 
battery (traction 
battery)
When there is no
energy flow
Hybrid battery 
(traction battery) statusLowFullLowFull

95
2-1. Driving procedures
2
When driving
■Breaking in your new Lexus
To extend the life of the vehicle, the following precautions are recommended to
obser
ve:
●For the first 186 miles (300 km): 
Avoid sudden stops.
●For the first 621 miles (1000 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in the low gears.
• Do not drive at a constant speed for extended periods.
■Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability of the
co
rrect fuel. ( P. 4 8 2 )
■For efficient use
●Put the shift lever into “D” when driving 
In the “N” position, the gasoline engine operates but electricity cannot be gen -
erated. The hybrid ba tter
y (traction battery) will be discharged requiring unnec-
essary engine power to recharge.
●Drive your vehicle smoothly 
Avoid abrupt acceleration and deceleration. Gradual acceleration and decel -
eration will make more effective use of the traction motor without having to use
g
asoline engine power.
●Avoid repeated acceleration 
Repeated acceleration consumes hybrid battery (traction battery) power,
r
esulting in poor acceleration. Battery power can be restored by driving with
the accelerator pedal slightly released.
●Put the shift lever into “P” when parking 
In the “N” position, the hybrid battery (traction battery) does not recharge. 
Leaving the shift lever in the “N” position for an extended period of the time may
di
scharge the hybrid battery. The vehicle cannot run if the hybrid battery is dis-
charged.
■When starting on an incline
The hill-start assist control may operate. ( P. 1 6 2 )

96
2-1. Driving procedures
CAUTION
■When starting the vehicle
Always keep your foot on the brake pedal while stopped with the hybrid system
running. This prevents the vehicle from creeping.
■When driving the vehicle
●Do not drive if you are unfamiliar with the location of the brake and accelerator
pedals to avoid depressing the wrong pedal. 
Accidentally depressing the accelerator pedal instead of the brake pedal will
result in sudden acceleration that may lead to an accident that could result in
death or serious injury.
●The driver should pay attention to pedest rians when the vehicle is powered only
by the electric motor (traction motor). Because there is no engine noise, the
pedestrians may misjudge the vehicle’s movement.
●Do not drive the vehicle over or stop the vehicle near flammable materials.
●Do not let the vehicle roll backwards while the shift lever is in a driving position, or
roll forward while the shift lever is in “R”. 
Doing so may cause the hybrid system not to operate or lead to poor brake and
steering performance, resulting in an accident or damage to the vehicle.
●If the smell of exhaust is noticed inside the vehicle, open the windows and check
that the trunk is closed. 
Large amounts of exhaust in the vehicle can cause driver drowsiness and eventu-
ally, death. Have the cause of the problem inspected immediately.

97
2-1. Driving procedures
2
When driving
CAUTION
■When driving the vehicle
●Do not under any circumstances shift the shift lever to “P”, “R” or “N” while the
vehicle is moving. 
Doing so can cause significant damage to the transmission and may result in a
loss of vehicle control.
●Do not shift the shift lever to “N” while the vehicle is moving. 
Doing so may cause the engine brake not to operate properly and lead to an
accident.
●Do not turn the hybrid system off while driving. 
The brake actuator will not operate properly if the hybrid system is off.
●Use engine braking (downshift) to maintain a safe speed when driving down a
steep hill. 
Using the brakes continuously may cause the brakes to overheat and lose effec-
tiveness. ( P. 1 0 6 )
●When stopped on an inclined surface, use the brake pedal and parking brake to
prevent the vehicle from rolling backward or forward and causing an accident.
●Be careful when driving on slippery surfaces, as the vehicle may spin or skid when
downshifting, rapidly accelerating, braking or turning.
●Do not adjust the position of the steering wheel, the seat, or the inside or outside
rear view mirrors while driving. 
Doing so may result in a loss of vehicle control that can cause accidents that may
result in death or serious injury.
●Always check that all passengers' arms, heads or other parts of their bodies are
not outside the vehicle, as this may result in death or serious injury.

101
2-1. Driving procedures
2
When driving
Starting the hybrid system
Modes can be switched by pressing the power switch when carrying the
electronic key on your person. (The hybrid system can be started in any
mode by operating the switch at the same time as depressing the brake
pedal.)
■Changing power switch mode
“OFF” mode
“A C C ” m o d e
Some electrical components
such as the audio system can be
used.
“IG-ON” mode
All electrical components can
be used.
■Starting the hybrid system
Check that the parking brake is set.
Turn off unnecessary lights and accessories.
Check that the shift lever is set in “P”.
Sit in the driver’s seat and firmly depress the brake pedal.
The power switch indicator turns green.
Press the power switch.
After a few seconds, the
“READY” light will flash and
come on with a beep sound.
The vehicle can move when the
“READ
Y” light is on, even if the
engine is stopped.
STEP1
STEP2
STEP3
STEP4
STEP5

105
2-1. Driving procedures
2
When driving
■Shift position uses
*1: To improve fuel consumption and reduce noises, set the shift lever in the
“D” position for normal driving.
*2: Selecting shift ranges using “S” mode, you can control engine braking for
ces.
■Selecting a driving mode
The following patterns can be selec ted to suit curr
ent driving and
operating conditions.
Power mode
For powerful acceleration and
driving in mountainous regions.
Normal mode
Snow mode
For accelerating and driving on
slippery road surfaces, such as
on snow.
Press “SNOW” to return to nor-
mal mode.
Shift positionFunction
PParking the vehicle or starting the hybrid system
RReversing
NNeutral
DNormal driving*1
S“S” mode driving*2 (  P. 1 0 6 )