131
System LimitationsDatabase
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. 133
We assume no liability for any incident that 
may result from an error in the program, or 
from changed conditions not noted above.