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:
Off-road Tracking
INFO button
► Setup ►Other
►Vehicle
The navigation system can be set to display white off-road tracking dots
(“breadcrumbs”) on the map screen whenever you drive into an are ...
System/Device Information
INFO button
► System/Device Information
View database, software, device, and vehicle identification information.
You will need this information when ordering a
map update. ...
FTP Sensor Replacement
Remove the EVAP canister.
Disconnect the FTP sensor connector (A).
Disconnect the hose (B), remove the retainer (C), and remove the FTP
sensor (D).
Ins ...