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:
Changing a Flat Tire
If you have a flat tire while driving, stop in a safe place to change it.
Drive slowly along the shoulder until you get to an exit or an area to stop that
is far away from the traffic lanes.
The ...
Gauges
Gauges include the speedometer, tachometer, fuel gauge, and related
indicators.
They are displayed when the ignition switch is in ON
.
■Speedometer
Displays your driving speed in mph (U. ...
Instrument Panel Indicators
The instrument panel has many indicators that give you important information
about your vehicle.
Malfunction Indicator Lamp
Low Oil Pressure Indicator
The engine can be severely damaged if th ...