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:
Online Reference Owner's Manual
This owner’s manual should be considered a permanent part of the
vehicle and should remain with the vehicle when it is sold.
This owner’s manual covers all models of your vehicle. You may find ...
Features
Audio System
For navigation system operation
See Navigation System Manual
...
Front Passenger's Weight Sensor Replacement (Part-2)
When tightening the TORX nuts (A), begin with ?, and tighten them in a
crisscross pattern in two or more steps.
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"Honda_SymbolMarke ...