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:
Displaying the Map Menu
Use the Map Menu to control the icons displayed on the screen. You can also
use
the Map Menu to find locations or to cancel the route.
1. On the map screen, select MAP
MENU (if displayed).
...
Emissions Testing
Testing of Readiness Codes
Your vehicle uses “readiness codes,” as part of its onboard self diagnostic
system.
Some states refer to these codes during testing to see if your vehicle’s
em ...
Audio Screen Control
AUDIO button (in BT mode)
Control the audio screen through the navigation system.
Select an item.
The following items are available:
• GROUP: Select or
to select a playlist, album, genre ...