26 Navigation Functions
NAV I
This chapter explains navigation function operations.
Basic Operation
Navigation
Functions
What is Navigation?
Navigation is a system that measures the
location of your car and guides you along the
route to the set destination. Your car's location
displayed on the map is measured with the
“GPS” and “Map matching” functions.
GPS(Global Positioning
System)
The system that uses GPS satellites to detect
the location is called “GPS”. The radio signals
from these GPS satellites are received and
the location of one's own car is measured to
within about 30 to 200 meters.
• Measuring your car's location takes about 2
minutes in a location with a good view. The
first time this product is used or it is used
after a long while, it takes about 5 minutes to
measure your car's location. •
The GPS satellites are managed by the
Department of Defense of the United States
of America, which sometimes deliberately
reduces the location precision. When that
happens, the location of your car may not be
displayed in the correct location.
Map Matching
“Map matching” is a function that compares
the route tracking data for your car with the
road configuration in the map data, estimates
the road you are driving on, and displays this
on the map.
CAUTION
• The map displayed for navigation and
the traffic rule information were prepared
based on various types of information
when the map data was prepared, so
they may differ from the actual roads
and traffic regulations. Always follow the
actual roads and obey the actual traffic
regulations.
GPS Antenna
GPS antenna
The location of your car is measured by
receiving weak radio signals from GPS
satellites with the “GPS antenna”.
ADVICE
If the radio signals from the GPS satellite
are blocked, the location of your car may
not be displayed in the correct location, so
observe the following rules.
• Do not paste a mirror type film or shade
film that contains carbon onto the
windshield.
• Do not place anything on or near the
GPS antenna.
• Do not use a mobile phone, PHS,
computer, etc. near the GPS antenna.
Navigation Functions 27
NAVIBasic Operation
Map Data
The map data may contain wrong or missing
characters, incorrect locations etc.
Position Measurement
When Accurate Position
Measurement Is Not Possible
Radio signals from GPS satellites cannot be
received in locations such as in tunnels, indoor
parking garages, locations surrounded by high
buildings, mountains or trees, under freeways
and elevated train lines. In such cases, the
position measurement uses autonomous
navigation based on the gyro sensor and
speed sensor, so accurate measurement of
your car's location may become impossible.
Measurement Error
When radio signals cannot be received from
GPS satellites, measurement error occurs
easily and the location of your car may not be
displayed correctly.
If you keep on driving, when it becomes
possible to receive radio signals from GPS
satellites, the error in the current location will
be automatically corrected. Reasons Why the Location of Your
Car Is Not Displayed Correctly
•
When a freeway and general road are near
each other
• When driving roads laid out in a grid
• When driving on a mountain road with a
sharp slope
• When turning left or right after having driven
a long while on a straight road
• Immediately after the engine is switched ON
• When driving at slow speed, for example on
a congested road or in a parking lot (Because
some cars do not output a vehicle speed
signal when driving too slow)
• When traveling with chains on the tires
• When the vehicle was turned on a turntable
or the like
• When driving through a fork in the road with
a small angle between the two branches
• After the vehicle has been moved by ferry or
the like
• When driving in a multi-level parking garage
or on a spiral road
• When zig-zagging on a wide road
• When a tire has been replaced with the
emergency spare
• When driving on snow, sand, or other
slippery road
3D Position Measurement
When effective radio signals for which
positional precision can be expected can be
received from four or more GPS satellites, the
3D position of latitude, longitude, and altitude
can be calculated.
“GPS Information”(P141)
2D Position Measurement
When effective radio signals for which
positional precision can be expected can be
received from three or more GPS satellites
but not enough for 3D position measurement,
the altitude is assumed to have remained
the same since the last time it could be
measured and only the 2D of latitude and
longitude can be calculated. In this case, the
positional precision is less than for 3D position
measurement.
“GPS Information” (P141)
Non-measurable Position
When effective radio signals from GPS
satellites for which positional precision can be
expected can not be received, the position is
not measured.
“GPS Information”(P141)
List of Audio Commands 183
INFO/SETTINGSVoice Operation
RTT Icons on MapRTT Icons on Map
RTT icons display setting
Current Station Current Station
Search for RTT stations
Display Progress
Line Display Progress Line
PremiDIA HD PremiDIA HD
Dolby Volume Dolby Volume
Balance/Fader Balance/Fader
Balance & Fader Settings
Balance and fader
Sound Quality
Control Sound Quality Control
Sound Quality Setting
Sound settings
Set sound quality
Sound
Acoustics Setting Acoustics Setting
Set acoustics
Acoustics
Speed
Compensated
Volume Speed Compensated Volume
Speed Compensated Volume
Settings
Speed volume settings
Speed volume
Compensated volume
Set speed volume
Display Off Display Off
Turn off display
Do not show display
Don't show displaySoundSound
Navi Voice
Volume setting
Set Time Display Set Time Display
Switch to set time display
Time display settings
Daylight Saving
Time Daylight Saving Time
Time Zone Time Zone
Format Change Format Change
Set Unit Set Unit
Camera Setting Camera Setting
Keyboard Layout Keyboard Layout
Pairing Pairing
Bluetooth setting
A/C Cut-in A/C Cut-in
A/C cut-in setting
Voice Control
Settings Voice Control Settings
Configuración de interrupción
de A/C
Picture Control Picture Control
Color Contrast
Contrast
Adjust contrast
Clock Screen Clock Screen
Display clock
Vehicle Settings Vehicle Settings
Car settingsCharging TimerCharging Timer
Timer Charge Setting
Timer Charge
Remote Climate
Control Remote Climate Control
Pre-Air Conditioning Settings
Pre-Air Conditioning
Set pre-air conditioning
Reset Trip Reset Trip
Reset Trip information
Reset Trip info
202 Navi Settings
Navi Voice/Others
You can set the settings for the volume and other settings.
Settings name Settings value Settings content
Beep Sound Volume OFF
Allows you to set the operation volume.(The factory default
setting is [2].)
The larger the number, the higher the volume. [Off] mutes the
operation sound.
1~3
Guidance Voice Volume +
Allows you to set the volume for audio guidance etc.(The factory
default setting is [4].)
The larger the number, the higher the volume. [Off] mutes the
operation sound.
-
Speed
Compensated Volume ON
Enables/disables the function for adjusting the volume
automatically according to the vehicle speed.
OFF
Sensor
Calibration Enter
Deletes the speed sensor and gyro sensor automatic learning
information.
→“Sensor Calibration”(P203)
222 Troubleshooting
Navigation Functions
Symptoms CauseResponse
The navigation function does not start. No map card is inserted.Insert the map card.
→“Insert an SD Card”(P15)
The wrong SD card is inserted.Insert the special map card.
There is a problem with the radio signals from the
GPS satellite. Please go on for a little while in the GPS receiving
state.
The vehicle moved by ferry or the like.
The vehicle's direction was changed by a turntable in
a parking garage or the like.
The speed learning level is low.
When this product is used for the first time, it takes a
while to calculate the position of your car. Wait in a location with a good view for a while.
When this product has not been used for long time, it
takes a while to calculate the position of your car.
A mirror type film or shade film that contains carbon is
pasted onto the windshield near the GPS antenna.
Some other antenna is near the GPS antenna. Check the position of the GPS antenna
(P26) and if
another antenna may be the cause of the problem,
move that other antenna.
There is something on the GPS antenna. Check the position of the GPS antenna
(P26) and if
something on the GPS antenna may be the cause of
the problem, remove it.
Immediately after the ignition switch is turned to ACC
or ON, some functions cannot be used immediately
after the map screen is displayed because data is
being read in. Please wait until the reading is completed.
Menu operation is not possible. Immediately after the ignition switch is turned to ACC
or ON, some functions cannot be used immediately
after the map screen is displayed because data is
being read in.Please wait until the reading is completed.
There is no audio guidance. The audio guidance volume is “OFF”.Set the [Navi Voice/Others] “Guidance Voice Volume” to
[1] to [7].
→“Navi Voice/Others”(P202)
RTT messages cannot be received. No RTT message has been received yet.Wait in a location with a good view for a while.