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:
Resetting the Clock Settings
INFO button
► Setup ►Other
►Clock Adjustment►Clock Adjustment
Reset all clock settings to the factory defaults.
Select OK under Reset. ...
Connecting rod Specification(s)
Connecting rod
Item
Measurement
Qualification
Standard or New
Service Limit
Connecting ...
Adjusting the Mirrors
Keep the inside and outside mirrors clean and
adjusted for best visibility.
Adjust the mirrors before you start driving. ...