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:
Immobilizer System
The immobilizer system prevents a key that has not been pre-registered from
starting the engine. Each key contains electronic transmitters that use
electronic
signals to verify the key.
Pay att ...
Interior Care
Use a damp cloth with a mixture of mild detergent and warm water to remove
dirt.
Use a clean cloth to remove detergent residue.
Do not spill liquids inside the vehicle.
Electrical devices and ...
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).
...