Page 14 of 147

12
Quick Reference GuideTroubleshootingFor more Information (P125)
Why does the vehicle position icon on the map appear
slightly off my actual position, especially at intersections?
This is normal. The navigation system is unaware of the
width of intersections. Large differences in vehicle position
can indicate a temporary loss of the GPS signal.
Why does the “Arrival time” display sometimes increase
even though I am getting closer to my destination?
The “Arrival time” is based on the speed limit on each
road. Depending on the traffic conditions, the “Arrival
time” may be calculated to be earlier or later.
Why does my clock frequently change the time forward
and backward by one hour?
The clock setting is automatically updated based on your
GPS location. If you are driving near a time zone border,
the automatic update likely is the reason.
How do I turn on the navigation system voice guidance?
1.Press the (Home) icon.
Select Settings > System > Sound/Beep tab.
Turn up Guidance Volume, if guidance volume is low.
2.Select and then press the (Back) icon. Select
Settings > Navigation and enable Voice Prompts.
For more details, see the Owner’s Manual.
How do I specify a destination when an entered city or
street could not be found?
Try selecting the destination directly from the map.
Page 130 of 147

128
uuTroubleshootinguGuidance, Routing
Troubleshooting
Guidance, Routing
ProblemSolution
The navigation system does not route me the same
way I would go or the same way as other mapping
systems.The navigation system attempts to generate the optimal route. You can change the
route preferences used when calculating a route.
2Recalculate Using Another Route Preference P. 107
The street I’m on is not shown on the map screen.The mapping database is constantly undergoing revision.
The vehicle position icon is not following the road. ●Check that the GPS antenna (located in the dashboard) is not blocked. For best
reception, remove items from the dashboard, such as radar detectors, cellular
phones, or loose articles.
●Metallic tinting or other aftermarket devices can interfere with GPS reception.
Please consult your dealer.
2GPS P. 132
How do I stop the map from rotating as I drive
along?1.Select and then press the (Back) icon.
2.Select Settings > Map & Vehicle > Driving Map View.
3.Check that Driving Map View is set to Track Up or 3-D.
4.Select North Up and then select Save.
The “Arrival time” display sometimes increases
even though I am getting closer to my destination.The “Arrival time” is based on the speed limit on each road. Depending on the
traffic conditions, the “Arrival time” may be calculated to be earlier or later.
My elevation (shown when I display the current
position) seems to fluctuate even though my
elevation has not changed.This is normal. The elevation can vary ±100 ft (30 m) due to GPS calculation errors.
2GPS P. 132
My elevation is missing on the “current position”
screen.The elevation is only displayed if the GPS antenna can receive signals from at least
four satellites. Try moving the vehicle into an open area. The elevation is also not
displayed if the calculated elevation is zero or below sea level.
Page 132 of 147
130
uuTroubleshootinguMiscellaneous Questions
Troubleshooting
Miscellaneous Questions
ProblemSolution
My clock frequently changes forward and backward
by one hour.The clock setting is automatically updated based on your GPS location. If you are
driving near a time zone border, the automatic update likely is the reason.
How do I change the interface language?Press the (Home) icon and then select Settings > System > Others tab >
Language.
Select the desired language for system language.
For more information, see the Owner's Manual.
Page 134 of 147

132
Reference Information
System Limitations
GPS
The signals received from GPS satellites are
extremely weak (less than a millionth of the
strength of a local FM station) and require
an unobstructed view of the sky. The GPS
antenna is located in the dashboard. The
signal reception can easily be interrupted or
interfered with by the following:
• Metallic window tint on the front or side
windows
• Cellular phones, PDAs, or other electronic
devices docked in a cradle or lying loose
on the dashboard
• Remote starters or “hidden” vehicle
tracking systems mounted near the
navigation unit
• Audio electronic devices mounted near
the navigation unit
• Trees, tall buildings, highway overpasses,
tunnels, or overhead electrical power
wiresGPS is operated by the U.S. Department of
Defense. For security reasons, there are
certain inaccuracies built into GPS for which
the navigation system must constantly
compensate. This can cause occasional
positioning errors of up to several hundred
feet (meters).
Address Calculation
The destination icon shows only the
approximate location of a destination
address. This occurs if the number of
possible addresses is different from the
number of actual addresses on a block. For
example, the address 1425 on a 1400 block
with 100 possible addresses (because it is
followed by the 1500 block) will be shown a
quarter of the way down the block by the
system. If there are only 25 actual addresses
on the block, the actual location of address
1425 would be at the end of the block.
Database
The digitized map database reflects
conditions as they existed at various points
in time before production. Accordingly,
your database may contain inaccurate or
incomplete data or information due to the
passage of time, road construction,
changing conditions, or other causes.
For example, some places/landmarks may
be missing when you search the database
because the name was misspelled, the place
was improperly categorized, or a place/
landmark is not yet in the database. This is
also true for police stations, hospitals, EV
stations, Gas stations and other public
institutions. Do not rely on the navigation
system if you need law enforcement or
hospital services. Always check with local
information sources.