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:
Removal
Drain the engine coolant.
Remove the air cleaner.
Remove the heater hose clamp bracket mounting bolt (A) and the harness
holder mounting bolt (B).
...
Synchro Sleeve and Hub Inspection and Reassembly (M/T)
Inspect gear teeth on all synchro hubs and the synchro sleeves for
rounded off corners, which indicate wear.
Install each synchro hub (A) in its mating synchro sleeve (B), and che ...
Winter Tires
If driving on snowy or frozen roads, mount all season marked “M+S” tires,
snow
tires, or tire chains; reduce speed; and maintain sufficient distance between
vehicles
when driving.
Be part ...