window Lexus CT200h 2014 Navigation manual (in English)

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6. TIPS FOR THE NAVIGATION SYSTEM
1. GPS (GLOBAL POSITIONING SYSTEM)
The Global Positioning System (GPS)
developed and operated by the U.S. De-
partment of Defense provides an accu-
rate current position, normally using 4
or more satellites, and in some case 3
satellites. The GPS system has a certain
level of inaccuracy. While the naviga-
tion system compensates for this most
of the time, occasional positioning er-
rors of up to 100 yd. (100 m) can and
should be expected. Generally, position
errors will be corrected within a few
seconds.When the vehicle is receiving signals
from satellites, the “GPS” mark appears
at the top left of the screen.
The GPS signal may be physically ob-
structed, leading to inaccurate vehicle
position on the map screen. Tunnels, tall
buildings, trucks, or even the placement
of objects on the instrument panel may
obstruct the GPS signals.
The GPS satellites may not send signals
due to repairs or improvements being
made to them.
Even when the navigation system is re-
ceiving clear GPS signals, the vehicle
position may not be shown accurately or
inappropriate route guidance may occur
in some cases.
LIMITATIONS OF THE
NAVIGATION SYSTEM
This navigation system calculates
the current position using satellite
signals, various vehicle signals, map
data, etc. However, an accurate posi-
tion may not be shown depending on
satellite conditions, road configura-
tion, vehicle condition or other cir-
cumstances.
NOTICE
The installation of window tinting
may obstruct the GPS signals. Most
window tinting contains some metal-
lic content that will interfere with
GPS signal reception of the antenna
in the instrument panel. We advise
against the use of window tinting on
vehicles equipped with navigation
systems.

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6. TIPS FOR OPERATING THE AUDIO/VISUAL SYSTEM
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CORRESPONDING BIT RATES
(Variable Bit Rate (VBR) compatible)
MP3 (MPEG Audio Layer 3), WMA
(Windows Media Audio) and AAC
(Advanced Audio Coding) are audio
compression standards.
This system can play MP3/WMA/AAC
files on CD-R, CD-RW, DVD-R, DVD-
RW discs and USB memory.
This system can play disc recordings
compatible with ISO 9660 level 1 and
level 2 and with the Romeo and Joliet
file system.
When naming an MP3/WMA/AAC
file, add an appropriate file extension
(.mp3/.wma/.m4a).
This system plays back files with .mp3/
.wma/.m4a file extensions as MP3/
WMA/AAC files respectively. To pre-
vent noise and playback errors, use the
appropriate file extension.
This system can play only the first ses-
sion when using multi-session compati-
ble CDs.
MP3 files are compatible with the ID3
Tag Ver. 1.0, Ver. 1.1, Ver. 2.2 and Ver.
2.3 formats. This system cannot display
disc title, track title and artist name in
other formats.
WMA/AAC files can contain a WMA/
AAC tag that is used in the same way
as an ID3 tag. WMA/AAC tags carry
information such as track title and artist
name.
The emphasis function is available only
when playing MP3/WMA files
recorded at 32, 44.1 and 48 kHz.
This system can play back AAC files
encoded by iTunes.
The sound quality of MP3/WMA files
generally improves with higher bit
rates. In order to achieve a reasonable
level of sound quality, discs recorded
with a bit rate of at least 128 kbps are
recommended.
File typeBit rate (kbps)
MP3 files:
MPEG 1 LAYER 332 - 320
MP3 files:
MPEG 2 LSF LAY-
ER 3
8 - 160
WMA files:
Ver. 7, 8CBR 48 - 192
WMA files:
Ver. 9 (9.1/9.2)CBR 48 - 320
AAC files:
MPEG4/AAC-LC16 - 320

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6. TIPS FOR OPERATING THE AUDIO/VISUAL SYSTEM
4
AUDIO/VISUAL SYSTEM
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WMA (Windows Media Audio) is an
audio compression format developed
by Microsoft
®. It compresses files into
a size smaller than that of MP3 files.
The decoding formats for WMA files
are Ver. 7, 8 and 9.
AAC is short for Advanced Audio Cod-
ing and refers to an audio compression
technology standard used with MPEG2
and MPEG4.
WMA
AAC

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1. SPEECH COMMAND SYSTEM OPERATION
1. SPEECH COMMAND SYSTEM
Talk switch
Press the talk switch to start the speech
command system.
To cancel voice recognition, press and
hold the talk switch.It is unnecessary to speak directly into
the microphone when giving a com-
mand.
The speech command system en-
ables the navigation, audio/visual
and hands-free systems to be operat-
ed using speech commands.
Refer to the command list for sam-
ples of speech commands. (P.288)
INFORMATION
Commands that are not displayed in
the “Shortcuts” screen can be oper-
ated from the “Main menu” screen.
USING THE SPEECH
COMMAND SYSTEM
STEERING SWITCH
MICROPHONE
INFORMATION
Wait for the confirmation beep before
speaking a command.
Speech commands may not be recog-
nized if:
• Spoken too quickly.
• Spoken at a low or high volume.
• The roof or windows are open.
• Passengers are talking while speech
commands are spoken.
• The air conditioning speed is set
high.
• The air conditioning vents are
turned towards the microphone.
In the following conditions, the sys-
tem may not recognize the command
properly and using speech commands
may not be possible:
• The command is incorrect or
unclear. Note that certain words,
accents or speech patterns may be
difficult for the system to recognize.
• There is excessive background
noise, such as wind noise.

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1. LEXUS PARKING ASSIST MONITOR
6
PERIPHERAL MONITORING SYSTEM
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THE CAMERA
The camera for the parking assist
monitor is located as shown in the il-
lustration.
USING THE CAMERA
If the camera lens becomes dirty, it
cannot transmit a clear image. If wa-
ter droplets, snow or mud adhere to
the lens, rinse with water and wipe
with a soft cloth. If the lens is ex-
tremely dirty, wash it with a mild
cleanser and rinse.
NOTICE
The parking assist monitor may not
operate properly in the following
cases.
• If the back of the vehicle is hit, the
position and mounting angle of the
camera may change.
• As the camera has a water proof
construction, do not detach, disas-
semble or modify it. This may cause
incorrect operation.
• Do not strongly rub the camera lens.
If the camera lens is scratched, it
cannot transmit a clear image.
• Do not allow organic solvent, car
wax, window cleaner or glass coat
to adhere to the camera. If this hap-
pens, wipe it off as soon as possible.
• If the temperature changes rapidly,
such as when hot water is poured on
the vehicle in cold weather, the sys-
tem may not operate normally.
• When washing the vehicle, do not
apply intensive bursts of water to the
camera or camera area. Doing so
may result in the camera malfunc-
tioning.
Do not expose the camera to strong
impact as this could cause a malfunc-
tion. If this happens, have the vehicle
inspected by any authorized Lexus
dealer or repairer, or another duly
qualified and equipped professional
as soon as possible.

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1. TELEPHONE OPERATION (HANDS-FREE SYSTEM FOR CELLULAR PHONES)
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SPEECH COMMAND
SYSTEM
Press this switch to operate the
speech command system.
The speech command system and its
list of commands can be operated.
(P.280)
INFORMATION
The other party’s voice will be heard
from the front speakers. The audio/
visual system will be muted during
telephone calls or when hands-free
speech commands are used.
Talk alternately with the other party
on the telephone. If both parties speak
at the same time, the other party may
not hear what has been said. (This is
not a malfunction.)
Keep call volume down. Otherwise,
the other party’s voice may be audible
outside the vehicle and voice echo
may increase. When talking on the
telephone, speak clearly towards the
microphone.
The other party may not hear you
clearly when:
• Driving on an unpaved road. (Mak-
ing excessive traffic noise.)
• Driving at high speeds.
• The roof or windows are open.
• The air conditioning vents are
pointed towards the microphone.
• The sound of the air conditioning
fan is loud.
• There is a negative effect on sound
quality due to the telephone and/or
network being used.