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:
Clutch Disc and Pressure Plate Installation
Temporarily install the clutch disc onto the splines of the transmission
mainshaft. Make sure the clutch disc slides freely on the mainshaft.
Apply a light coat of super high temp ...
Tool Maintenance
Follow these instructions to keep the ATF cooler cleaner working properly:
Replace the two magnetic nonbypass spin-on filters after every 20 hours
of use, based on the hour meter, or when yo ...
Modifications
Do not modify your vehicle or use non-Honda components that can affect its
handling, stability, and reliability.
Overall vehicle performance can be affected. Always make sure all equipment is
pro ...