311
System Limitations
Database
Reference Information
In addition, the map database contains
verified and unverified areas. Unverified
streets may be missing from the map, in
the wrong location, or have an incorrect
name or address range. A message will
warn you if your route includes unverified
streets. Exercise additional caution when
driving in unve rified areas.
The database does not include, analyze,
process, consider, or reflect any of the
following categories of information:
• Neighborhood quality or safety
• Population density
• Availability or proximity of law
enforcement
• Emergency, rescue, medical, or other
assistance
• Construction work, zones, or hazards
• Road and lane closures
• Legal restrictions (such as vehicular type,
weight, load, height, and speed
restrictions)
• Road slope or grade
• Bridge height, width, weight, or other
limits
• Traffic facilities safety
• Special events •
Pavement characteristics or conditions
Every effort has been made to verify that
the database is accurate. The number of
inaccuracies you experience increases the
longer you go without obtaining an
updated map database.
2 Obtaining a Navigation Update
P. 313
We assume no liability for any incident that
may result from an error in the program, or
from changed conditions not noted above.
