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:
Introduction
Congratulations! Your selection of a 2008 Honda Fit was a wise investment.
It will give you years of driving pleasure.
One of the best ways to enhance the enjoyment of your new vehicle is to read
...
TPMS System Description (USA models)
TPMS Control Unit Inputs and Outputs at the
20P Connector
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Additional Information About Your Seat Belts
Seat Belt System Components
Your seat belt system includes lap/ shoulder belts in all five seating positions.
The front seat belts are also equipped with automatic seat belt tensioners.
This syste ...