2013 Lexus IS300h roof

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6. TIPS FOR THE NAVIGATION SYSTEM
3
NAVIGATION SYSTEM
IS300h/250_Navi_EE
Accurate current position may not be
shown in the following cases:
• When driving on a small angled Y-
shaped road.
• When driving on a winding road.
• When driving on a slippery road such
as in sand, gravel, snow, etc.
• When driving on a long straight road.
• When motorway and surface streets
run in parallel.
• After moving by ferry or vehicle car-
rier.
• When a long route is searched during
high speed driving.
• When driving without setting the cur-
rent position calibration correctly.
• After repeating a change of direction
by going forward and backward, or
turning on a turntable in a parking lot.
• When leaving a covered parking lot or
parking garage.
• When a roof carrier is installed.
• When driving with tyre chains
installed.
• When the tyres are worn.
• After replacing a tyre or tyres.
• When using tyres that are smaller or
larger than the factory specifications.
• When the tyre pressure in any of the 4
tyres is not correct.Inappropriate route guidance may
occur in the following cases:
• When turning at an intersection off
the designated route guidance.
• If you set more than 1 destination but
skip any of them, auto reroute will
display a route returning to the desti-
nation on the previous route.
• When turning at an intersection for
which there is no route guidance.
• When passing through an intersection
for which there is no route guidance.
• During auto reroute, the route guid-
ance may not be available for the next
turn to the right or left.
• During high speed driving, it may
take a long time for auto reroute to
operate. In auto reroute, a detour route
may be shown.
• After auto reroute, the route may not
be changed.
• If an unnecessary U-turn is shown or
announced.
• If a location has multiple names and
the system announces 1 or more of
them.
• When a route cannot be searched.
• If the route to your destination
includes gravel, unpaved roads or
alleys, the route guidance may not be
shown.
If the vehicle cannot receive GPS sig-
nals, the current position can be
adjusted manually. (P.171)

272
IS300h/250_Navi_EE
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.280)
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.

304
1. LEXUS PARKING ASSIST MONITOR
IS300h/250_Navi_EE
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.

326
1. TELEPHONE OPERATION (HANDS-FREE SYSTEM FOR CELLULAR PHONES)
IS300h/250_Navi_EE
The following data is stored for every
registered telephone. When another
telephone is connected, the following
registered data cannot be read:
• Contact data
• Call history data
• Favourites data
•Image data
• All telephone settings
• Message settings
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.
ABOUT THE CONTACTS IN
THE CONTACT LIST
INFORMATION
When a telephone’s registration is
deleted, the above-mentioned data is
also deleted.