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:
ATF Filter Replacement (A/T)
Remove the air cleaner assembly.
Disconnect the ATF cooler hoses (A) from the ATF filter (B).
Remove the ATF filter holder (C).
Remove the ATF filter, and ...
Operation in Alaska, Hawaii, Canada, and Puerto Rico
Map Coverage
All roads displayed on the map screens are
verified roads. Information in this manual
relating to “unverified” roads or areas is
not applicable.
Address and Place Entry
Screens
...
MTF Inspection and Replacement (M/T)
Park the vehicle on level ground, and turn the engine off.
Raise the vehicle on a lift, and make sure it is securely supported.
Remove the splash shield.
...