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:
Maintenance Items Under the Hood
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Ball Joint Boot Inspection/Replacement
Special Tools Required
Bearing Driver Attachment, 40 mm 07GAF-SE00200
Check the ball joint boot for weakness, damage, cracks, and grease leaks.
NOTE:
If the ball joint boot is ...
Accelerator Pedal Module Removal/Installation
Remove the driver's dashboard lower cover.
Disconnect the APP sensor connector (A).
Remove the accelerator pedal module (B).
NOTE:
The APP sensor ...