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 Minder
Your vehicle displays engine oil life and maintenance service items on the information
display to show you when you should have your dealer do engine oil replacement and
indicated maintenance serv ...
Selecting USB Mode
1. Connect the USB flash drive to the
USB adapter cable in the center
console.
2. Press the CD/AUX button until you
get to USB mode.
3. Select AUDIO/STREET until
AUDIO is highlighted in blue ...
Navigation—Changing Route or Destination
You can alter your route by adding waypoints to visit, adding streets to
avoid, or changing your destination during route guidance. ...