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:
Navigation
You can select any place/landmark as a destination by using voice control or
the touch screen. The navigation
system gives you turn-by-turn driving directions to your destination.
Store home add ...
Fuse Locations
If any electrical devices are not working, turn the ignition switch to LOCK
(0 and
check to see if any applicable fuse is blown.
Fuse locations are shown on the fuse box cover. Locate the fuse i ...
Accessories
...