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:
Symbols
...
Tire Pressure Sensor Replacement (USA models)
Removal
notice
Each tire pressure sensor contains a lithium anode battery that is
not removable. The complete tire pressure sensor should be disposed of
according t ...
Rear Seat-Back Cover/Pad Replacement
Special Tools Required
KTC Trim Tool Set SOJATP2014
*Available through the Honda Tool and Equipment Program; call
888-424-6857
NOTE:
Use the appropriate tool from the KTC trim to ...