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Quick Reference GuideTroubleshootingFor more Information (P117)
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 di fferences 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 destinat ion directly from the map. 
     
        
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uuTroubleshooting uGuidance, 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 wh en calculating a route.
2Recalculate Using Another Route Preference  P. 108
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 dashboar d, such as radar detectors, cellular 
phones, or loose articles.
●Metallic tinting or other aftermarket devices can interfere with GPS reception. 
Please consult your dealer.
2 GPS  P. 124
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” displa y 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 fluc tuate even though my 
elevation has not changed.This is normal. The elevation can vary ±100 ft (30 m) due to GPS calculation errors.
2 GPS P. 124
My elevation is missing on the “current position” 
screen.The elevation is only displayed if the GP S 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. 
     
        
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122
uuTroubleshooting uMiscellaneous 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. 
     
        
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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 
wires GPS is operated by the U.S. Department of 
Defense. For security
 reasons, there are 
certain inaccuracies bu ilt 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 addr esses 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, 
Hydrogen 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 in formation sources.