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. ...
Engine Number and Transmission Number
See the image below for the locations of your vehicle’s engine number and
transmission number.
...
Camshaft Installation
Insert the camshaft (A). Apply new engine oil to the journals and the cam
lobes.
Install the CMP pulse plate.
Install the CMP sensor.
Install the r ...