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:
Under-Dash Fuse/Relay Box Removal and Installation (Canada models)
Canada models
NOTE: SRS components are located in this area.
Review the SRS component locations, and
precautions and procedures
before doing repairs or servicing.
Removal
NOTE: The ...
Inspection
Install the nut on the damper shaft end, and set the socket wrench and
T-handle on the nut.
Compress the damper assembly by hand, and check for smooth operation
through a full ...
Driver's Seat Position Sensor Operation Check
Check the driver's seat position sensor after the driver's seat position
sensor replacement.
Make sure the driver's seat is all the way forward position.
Make sure the ...