2007 Lexus GS450h audio

255
3-3. Using the audio system
3
Interior features
Optimal use of the audio/video system
Press on the panel to display the audio/video control screen.
Operating the radio, cassette player and CD player
Operating the DVD video/audio and video CD
Adjust sound 
quality and balance
Adjust the DSP
Adjust screen ratio
Adjust sound

quality and balance
Adjust the DSP

256
3-3. Using the audio system
Adjusting sound quality and balanceTouch on the screen. Adjust the settings, referring to the
following table.
Once you have finished, touch .
*: The sound quality level is adjusted individually in each radio, cassette tape, CD or DVD mode.
STEP1
STEP2
Sound quality
modeDisplayLevelTo u c h
High-pitched tones*-5 to 5
or Mid-pitched
tones*-5 to 5
Low-pitched tones*-5 to 5
Front/rear
volume balanceF7 to R7 or
Left/right volume
balanceL7 to R7 or

257
3-3. Using the audio system
3
Interior features
Setting DSPThe following features can be set as desired by touching on the
screen.
■ Turning Automatic Sound Levelizer (ASL) ON or OFF
Touch or .
ASL automatically adjusts the volume and tone quality according to the
noise level as you drive your vehicle.
■ Changing the listening position (vehicles with CD player only)
The speaker balance can be change d to produce the best sound for
each listening position.
To u c h .
The listening position changes as follows each time the switch is
touched.
With CD playerWith DVD player
DisplayListening position
Position best suited to the driver's seat
Position best suited to th e driver's and front passen-
ger’s seat

258
3-3. Using the audio system
■Turning the surround ON or OFF (with DVD player only)
Touch or .
Setting the screen ratio mode (with DVD player only)
Touch on the screen. Touch one of the , or to
match screen ratio printed on the
DVD.
DisplayListening position
Position best suited to the rear seats
Position best suited to all seats
STEP1
STEP2
Screen ratio modeDetails
NORMALSuitable for 4:3 screen ratio
WIDE1Expand the Normal screen 
horizontally to fill the display.
WIDE2Suitable for 16:9 screen ratio

259
3-3. Using the audio system
3
Interior features
Using the steering switches
Turning on the powerPress when the audio system is off.
The audio system can be turned OFF by holding the switch down for 1 second
or more.
Changing the audio source
Press when the audio system is on. The audio source changes as
follows each time the bu tton is pressed. If a cassette tape or CD is not
inserted, that mode will be skipped.
FM (1, 2) cassette player CD/DVD player AM SAT (1, 2, 3)
Adjusting the volume
Press “+” on to increase the vo lume and “-” to decrease the vol-
ume.
Hold down the button to continue increasing or decreasing the volume.
Some audio features can be controlled using the steering switches.
Power on, select audio
source
Vo l u m e
Radio: Select radio stations
Cassette: Fast forward, rewind and select-
ing tracks
CD: Select tracks, discs and folder
DVD: Select tracks, discs and chapter

260
3-3. Using the audio system
Selecting a radio stationPress to select the radio mode.
Press or  on to select a radio station.
To scan for receivable stations, press and hold the switch until you hear
a beep.
Fast forwarding or rewinding the cassette
Press to select the cassette mode.
Press and hold  or  on until you hear a beep.
To stop fast forwarding or rewinding, press the same switch.
Selecting a track or chapter (DVD mode only for chapter selection)
Press to select the cassette mode, CD or DVD mode.
Press  or  on to select the desired track or chapter.
Cassette mode only: you can skips maximum 9 tracks.
Selecting a disc or folder in the CD or DVD player (Folder selection is
available only when MP3/WMA disc is in use.)
Press to select the CD or DVD player.
Press and hold  or  on until you hear a beep.
■Canceling automatic selection of a radio station
Push the same switch.
CAUTION
■To reduce the risk of an accident
Exercise care when operating the audio switches on the steering wheel.
STEP1
STEP2
STEP1
STEP2
STEP1
STEP2
STEP1
STEP2

263
3-4. Using the hands-free system
3
Interior features
■When using the hands-free system
●The audio system and voice guidance are muted when making a call.
●If both parties speak at the same time it may be difficult to hear.
●If the received call volume is overly loud, an echo may be heard.
●Try to face the microphone as much as possible when speaking.
●In the following circumstances it may be difficult to hear the other party.
• When driving on unsealed roads
• When driving at high speeds
• If the window is open
• If the air-conditioning is blowing directly on the microphone
• If the air-conditioning is set to high
■Conditions under which the system will not operate
●If using a mobile phone that does not support Bluetooth®.
●If the mobile phone is switched off.
●If you are outside service range.
●If the mobile phone is not connected.
●If the mobile phone's battery is low.
■Bluetooth® antenna
The antenna is built into the display. If the mobile phone is behind the seat or in the
console box, or touching or covered by metal objects, connection status may dete-
riorate.
■Battery charge/Signal status
This display may not correspond exact ly with the mobile phone itself.
■About Bluetooth®
Bluetooth is a registered trademark of 
Bluetooth SIG. Inc.

356
4-1. Maintenance and care
NOTICE
■Cleaning detergents
Do not use the following types of detergent, as they may discolor the vehicle inte-
rior or cause streaks or damage to painted surfaces.
●Non-seat portions: Organic substances such as benzene or gasoline, alkaline or
acidic solutions, dye, or bleach.
●Seats: Acidic solutions, such as thinner, benzene, or alcohol.
■Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of leather
surfaces.
●Remove any dust or dirt on leather surfaces immediately.
●Do not expose the vehicle to direct sunlight for extended pe riods of time. Park
the vehicle in the shade, especially during summer.
●Do not place items made of vinyl, plastic, or that contain wax on the upholstery, as
they may stick to the leather surface if the vehicle interior heats up significantly.
■Water on the floor
Do not wash the vehicle floor with water. 
Vehicle systems such as the audio system may be damaged if water comes into
contact with electrical components under the floor of the vehicle, and may also
cause the body to rust.
■Cleaning the inside of the rear window
Be careful not to scratch or damage the heater wires or antenna.