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:
Vehicle
INFO button
► Setup ►Other
►Vehicle
Set the off-road tracking feature and correct the vehicle position displayed
on the
map.
Select an item.
The following items are availa ...
Off-road Tracking
INFO button
► Setup ►Other
►Vehicle
The navigation system can be set to display white off-road tracking dots
(“breadcrumbs”) on the map screen whenever you drive into an are ...
Tire Pressure Monitoring System (TPMS)
U.S. models only
Your vehicle is equipped with a tire pressure monitoring system (TPMS) that
turns on every time you start the engine and monitors the pressure in your tires
while driving.
Each ...