Depending on the length of time the power was interrupted, your system may require GPS initialization.

If initialization is not necessary, the system proceeds directly to the Startup Confirmation screen.
If the system fails to locate a sufficient number of satellites to locate your position within 10 minutes, the following screen is displayed.

If you are experiencing GPS reception problems:
Honda Automobile Customer Service Contact Information
Honda Navi
American Honda Motor Co., Inc.
Honda Customer Service
Mail Stop 500-2N-7E
1919 Torrance Blvd.
Torrance, CA 90501-2746
Tel: (800) 999-1009
Fax: (310) 783-3273 ...
Fuses
The vehicle’s fuses are contained in three fuse boxes.
The interior fuse box is behind the driver’s coin tray. To access it, remove
the tray by turning the dial counterclockwise then pulling ...
Troubleshooting
Why does the vehicle position icon on the map “lag” a
short distance behind my actual position, especially at
intersections?
This is normal. The navigation system is unaware of the
width o ...