2008 Lexus GS450h window

239
3-2. Using the air conditioning system and defogger
3
Interior features
GS_HV_U
December 12, 2007 3:30 pm
■Automatic mode for air intake control
In automatic mode, the system detects exhaust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
When the air conditioning is off, and the fan is operating, turning the auto mode ON
will activate the air conditioning system.
■Micro dust and pollen filter
●In order to prevent the windows from fogging up when the outside air is cold,
the following may occur.
• Outside air mode does not switch to .
• The air conditioning system operates automatically.
• The operation cancels after 1 minute.
●In rainy weather, the windows may fog up. Press .
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 outs ide 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.

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3-2. Using the air conditioning system and defogger
GS_HV_U
December 12, 2007 3:30 pm
Rear window and outside re ar view mirror defoggers
■Operating conditions
The “POWER” switch must be in the 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.

250
3-3. Using the audio system
GS_HV_U
December 13, 2007 10:50 am
■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 in side the rear window.
■Receiving XM® Satellite Radio
The optional Lexus genuine satellite radio tuner and antenna allows you to receive
and play XM
® Satellite Radio broadcasts. (Subsc ription 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® Satellite Radio are subject to change with-
out notice.

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3-3. Using the audio system
GS_HV_U
December 13, 2007 10:50 am
■MP3 and WMA files
MP3 (MPEG Audio LAYER 3) is a standard audio compression format.
Files can be compressed to approximately 1 /10 of their original size by using MP3
compression.
WMA (Windows Media
TMAudio) is a Microsoft audio compression format.
This format compresses audio data to a size smaller than that of the MP3 format.
There is a limit to the MP3 and WMA file standards and to the media/formats
recorded by them that can be used.
●MP3 file compatibility
• Compatible standards 
MP3 (MPEG1 LAYER3, MPEG2 LSF LAYER3)
• Compatible sampling frequencies 
MPEG1 LAYER3: 32, 44.1, 48 (kHz) 
MPEG2 LSF LAYER3: 16, 22.05, 24 (kHz)
• Compatible bit rates 
MPEG1 LAYER3: 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 (kbps)
• MPEG2 LSF LAYER3: 64, 80, 96 , 112, 128, 144, 160 (kbps)
*: Compatible with VBR
• Compatible channel modes: stereo, joint stereo, dual channel and monaural
●WMA file compatibility
• Compatible standards 
WMA Ver. 7, 8, 9
• Compatible sampling frequencies 
32, 44.1, 48 (kHz)
• Compatible bit rates 
Ver. 7, 8: CBR 48, 64, 80, 96, 128, 160, 192 (kbps) 
Ver. 9: CBR 48, 64, 80, 96, 128, 160, 192, 256, 320 (kbps)
*: Only compatible with 2-channel playback

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3-3. Using the audio system
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Interior features
GS_HV_U
December 13, 2007 10:50 am
●Playback
• To play MP3 files with steady sound quality, we recommend a fixed bit rate of 128 kbps and a sampling frequency of 44.1 kHz.
• CD-R or CD-RW playback may not be po ssible in some instances, depend-
ing on the characteristics of the disc.
• There is a wide variety of freeware and other encoding software for MP3 and WMA files on the market, and depending on the status of the encoding and
the file format, poor sound quality or noise at the start of playback may result.
In some cases, playback ma y not be possible at all.
• When files other than MP3 or WMA files are recorded on a disc, it may take more time to recognize the disc and in some cases, playback may not be pos-
sible at all.
• Microsoft, Windows, and Windows Medi a are the registered trademarks of
Microsoft Corporation in the U.S. and other countries.
■CD-R and CD-RW discs
●CD-R/CD-RW discs that have not been su bject to the “finalizing process” (a
process that allows discs to be played on a conventional CD player) cannot be
played.
●It may not be possible to play CD-R /CD-RW discs recorded on a music CD
recorder or a personal computer because of disc characteristics, scratches or
dirt on the disc, or dirt, condensati on, etc. on the lens of the unit.

308
3-4. Using the hands-free system (for cellular phone)
GS_HV_U
December 13, 2007 10:51 am
■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 toward 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 a 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.

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3-7. Other interior features
GS_HV_U
December 13, 2007 10:51 am
CAUTION
■While driving
Do not adjust the display.
Be sure to adjust the display on ly when the vehicle is stopped.
■When doing the circling calibration
Be sure to secure a wide space, and watch out for people and vehicles in the neigh-
borhood. Do not violate any local traffic rules while performing circling calibration.
NOTICE
■To avoid the compass malfunctions
Do not place magnets or any metal objects near the inside rear view mirror. 
Doing this may cause a malfunction of the compass sensor.
■To ensure normal operation of the compass
●Do not perform circling calibration of the compass in a place where the earth’s
magnetic field is subject to interference by artificial magnetic fields.
●During calibration, do not operate electr ic systems (moon roof, power windows,
etc.) as they may interfere with the calibration.

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3-7. Other interior features
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Interior features
GS_HV_U
December 13, 2007 10:51 am
■Speech recognition information
The Lexus Link speech recognition systems use speech technology that is designed
to understand a wide range of speakers of American English. However, the technol-
ogy may not work as well if a regional or ethnic accent is encountered. If the speech
recognition system does not work properly, refer to the following.
●The system does not recognize your command properly if noise is present. Per-
form the following to improve voice command recognition.
• Turn down or off the air conditioning system.
• Slow down to reduce wind noise.
• Close the windows and the moon roof to block outside noise.
• Have all occupants be quiet so that the system does not recognize their con- versation as a command.
●When to speak 
Say a command within 5 seconds after the system prompts you to speak.
●How to speak
• Speak forcefully and clearly.
• Speak calmly and naturally.
• The driver should speak while facing forward, and the passenger should
speak facing the inside rear view mirror.
• Avoid speaking with a rising intonati on. Use a flat or falling intonation.
●Tips for one-word commands
• The system recognizes only one word at a time for personal calling. (There
are some exceptions, such as “Advanced services” and “My number”.)
• When inputting the security codes or voice-activated keypad number, you
must say them one digit at a time. When inputting a phone number, the
speech recognition system can recognize 7, 10, and 11-digit numbers as well
as the number 911.