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Navigation System 145
Frequently Asked Questions
Guidance, Routing
Problem Solution
The navigation system does not route me the same way I
would go, or the way some other mapping program displays.
Why is this?
The navigation system attempts to generate the optimum route. See
Changing the Route Preference on page 51.
Why is the street I’m on not shown on the map? It has been
here for more than a year.
The mapping database is constantly undergoing revision. See page 125 for
ways to obtain the latest detailed coverage information.
The vehicle position icon is not following the road and the
“GPS icon” text in the upper left hand corner of the screen is
white or missing.
• The GPS antenna (located in the dashboard) may be blocked by personal
items. For best reception, remove items from the dashboard, such as radar
detectors, cell phones, or loose articles.
• Metallic tinting or other aftermarket devices can interfere with the GPS
reception. Please see your dealer. Also see System Limitations on
page 120.
I entered a destination, but the blue highlighted route and
voice guidance stopped, or turned into a blue/pink dashed line
before I got to my destination. Why is this?
Your route has entered an unverified area. See Unverified Area Routing on
page 98.
The map rotates while I make turns. How can I stop this? Select the North-up map orientation by voice, or by selecting North-up
from the Map menu. See Map Screen on page 52.
Sometimes, I cannot select between the North-up and
Heading-up map orientations. Why is this?
The Heading-up map orientation can only be shown in the lower scales (1/
20 - 1 mile scales). See Map Scale on page 64.
While driving to my destination, the “time to go” display
sometimes increases, even though I am getting closer.
The “Time to go” is based on actual road speeds. However if your speed
slows down when you encounter slower traffic, the system updates the
“Time to go” based on your actual speed to give you a better estimate of
arrival time.
The vehicle position icon on the map “lags” a short distance
behind, especially when I arrive at an intersection. Is there
anything wrong?
No. When at an intersection, the system is unaware of the width of the
intersecting road. Large differences in vehicle position can indicate a
temporary loss of the GPS signal. See GPS Reception Issues on page 120.
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