2007 Lexus GS450h battery

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2-3. Operating the lights and windshield wipers
■Automatic light off system
The headlights and tail lights turn off 30 seconds after a door is opened or closed if
the power switch has been switched to “ACC” or turned “OFF” while the headlights
are turned on. (The lights turn off immediately if the button on the key is pressed
after all doors are locked.)
To turn the lights on again, switch to “IG-ON” mode, or turn the light switch “OFF”
once and then back to the or position.
■Automatic headlight leveling system
The level of the headlights is automatica lly adjusted according to the number of
passengers and the loading condition of the vehicle to ensure that the headlights do
not interfere with other road users.
■If the indicator flashes...
It may indicate a malfunction in the system. Contact your Lexus dealer.
■Customization
Settings (e.g. light sensor sensitivity) can be changed. ( P. 5 0 0 )
NOTICE
■To prevent 12 volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is off.

151
2-4. Using other driving systems
2
When driving
If the steering neutral position is unknown
After the 12 volt battery has been reconnected, the steering sensor will
need to be initialized. At this time, if the dual sensors detect an obstacle,
the steering guide symbol and both arrows will be displayed.
Multi-information display
Touch screen
Use one of the following methods to initialize the steering sensor.
• With the vehicle stopped, turn the s teering wheel all the w
ay to the left,
then the right. (The order is not important.)
• Drive for more than 5 minutes on an un-cr
owded road with as few
curves and corners as possible.
If the steering guide symbol disappe ars, the steering sensor has been ini-
tialized. If the steering guide symbol does not disappear
, have the vehicle
checked by your Lexus dealer.

174
2-5. Driving information
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that ar
e appropriate to the prevailing outside tempera -
tures.
• Engine oil
• Engine/inverter coolant
• Washer fluid
● Ha
ve a service technician inspect th e level and specific gravity of
battery electrolyte.
● Ha
ve the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same si ze and brand, and that chains match
the size of the tires.
● Tire inflation pressure falls in winter as the outside temperature
falls. Add 2.8 to 4.3 psi (20 to 30 kPa, 0.2 to 0.3 kgf/cm2 or bar)
to the standard tire inflation pressure.

198
3-2. Using the air conditioning system and defogger
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outside air and that of the windshield can
cause the outer surface of the windshield to fog up, blocking your vision.
NOTICE
■To prevent 12 volt battery discharge
Do not leave the automatic air conditioning system on longer than necessary when
the hybrid system is off.

199
3-2. Using the air conditioning system and defogger
3
Interior features
Rear window and outside rear view mirror defoggers
■Operating conditions
The power switch must be in the “IG-ON” mode.
CAUTION
■When the outside rear view mirror defoggers are on
Do not touch the rear view mirror surfaces, as they can become very hot and burn
you.
NOTICE
■To prevent 12 volt battery discharge
Turn the defoggers off when the hybrid system is off.
These features are used to defog the rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
Press the button.
Press the button to turn on the
rear window and outside rear
view mirror defoggers. The
defoggers will automatically
turn off after approximately 15
minutes. Pressing the button
again also turns the defoggers
off.

202
3-3. Using the audio system
CAUTION
■For vehicles sold in the U.S.A. and Canada
●Pa r t 1 5 o f t h e F CC Ru l e s
FCC Warning:
Any unauthorized changes or modifications to this equipment will void the user’s
authority to operate this device.
●Laser products
• Do not take this unit apart or attempt to make any changes yourself. 
This is an intricate unit that uses a lase r pickup to retrieve information from the
surface of compact discs. The laser is carefully shielded so that its rays remain
inside the cabinet. Therefore, never try to disassemble the player or alter any
of its parts since you may be exposed to laser rays and dangerous voltages.
• This product utilizes a laser. 
Use of controls or adjustments or pe rformance of procedures other than
those specified herein may result in hazardous radiation exposure.
NOTICE
■To prevent 12 volt battery discharge
Do not leave the audio system on longer th an necessary with the hybrid system off.
■To avoid damaging the audio/video system
Take care not to spill drinks or other fluids over the audio system.

209
3-3. Using the audio system
3
Interior features
■When the 12 volt battery is disconnected
All preset stations are erased.
■Reception sensitivity
●Maintaining perfect radio reception at all times is difficult due to the continually
changing position of the antenna, differences in signal strength and surrounding
objects, such as trains, transmitters, etc.
●The radio antenna is mounted inside the rear window. To maintain clear radio
reception, do not attach metallic window tinting or other metallic objects to the
antenna wire mounted inside the rear window.
■XM® satellite radio
The optional Lexus genuine satellite radio tuner and antenna allows you to receive
and pla
y XM® satellite radio broadcasts. (Subscri ption is required. Not available in
Hawaii and Alaska.)
*
●XM® subscriptions 
For detailed information about XM® satellite radio or to subscribe, visit XM®
on the web at www.xmradio.com or call (800) 967-2346.
●Radio ID 
You will need the radio ID when activating XM
® service or reporting a prob -
lem. Select “CH000” using the dial, and the receiver's 8-character ID
number will appear.
●Satellite tuner 
The tuner supports only Audio Services (Music and Talk) and the accompany -
ing Text Information of XM
® satellite radio.
*: Terms and services provided by XM® Radio are subject to change without
notice.

264
3-4. Using the hands-free system
Status display
You can check such indicators as signal strength and battery charge on
the “Telephone” screen.
Connection status
Battery charge
Call area
Signal strength
IndicatorsConditions
Connection status
Blue: Good
Yellow: Bad
: Not connected
Battery charge: Full
: Low
Call area“Rm”: Roaming area
“Hm”: Home area
Signal strength
: Good
: Bad
: Not connected