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:
Audio System
You can play music from a wide array of media sources. You can also control
the audio system using voice commands. ...
Audio Screen Control
AUDIO button (in FM/AM mode)
Control the audio system through the navigation screen.
1. Select a frequency band (AM,
FM1, or FM2).
2. Select a preset station.
► Touch and hold a pr ...
Using Call History
PHONE button
► Call History
1. Select a call.
Select All, Dialed, Received,
Missed to view the call history
by category.
2. Select Call to begin dialing.
The call history show ...