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Navigation System
7
Introduction
Verified streets (dark colored)
Unverified streets (light colored)
When 
displayed
These roads are found within metropolitan areas, and 
include interstate freeways and major roads connecting 
cities.
These roads are found in rural areas, and typically include 
residential streets away from the center of a town.
Street color
Shown on daytime map screen as black or red, such as 
interstate freeways.
Shown on the daytime map screen as light brown.
Map quality
The database vendor has verified these streets.
Information like turn restrictions, average speed, and 
whether it is a one-way street have been gathered and 
used when creating your route to a destination.
These streets have not been verified by the database vendor. 
The system does not contain information on one-way streets, 
turn restrictions, or the road’s average speed. They are shown 
on the map for reference and may have errors in map location, 
naming, and address range.
Routing 
differences
While driving to your destination, the displayed route 
line is solid blue. The system provides voice and map 
guidance to your destination.
Your route line is either a blue dotted “vector line,” or a dashed 
pink/blue line. For information on selecting this option, and the 
routing differences, see Unverified Area Routing on page 87.
Cautions
There are no pop-up boxes urging extra caution during 
a route. However, because roads constantly change, 
you are urged to use common sense, and always obey 
posted traffic restrictions.
Regardless of whether the user chooses route guidance, there 
are cautionary screens before and during the route urging the 
user to be extra cautious, and obey all traffic restrictions. See 
Unverified Area Routing on page 87.
Guidance 
voice
Voice guidance issues instructions such as “In a half-
mile, make a right turn.”
The phrase “if possible” is added to each guidance instruction. 
For example: “In a half-mile, make a right turn, if possible.”
Time and 
distance 
“to go”
The time and distance “to go,” displayed while en route 
to a destination, is based on the average speed and 
distance for the roads used for your route.
Because the average speed of these roads is not known, the time 
and distance “to go” is based on a fixed average speed of 
25 mph for these roads.