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:
TPMS (Tire Pressure Monitoring System)
U.S. models only
Monitors the tire pressure while you are
driving. If your vehicle’s tire pressure becomes
significantly low, the low tire pressure
indicator comes on.
Conditions such as low ...
Wheel Runout Inspection
Raise and support the vehicle.
Check for a bent or deformed wheel.
Set up the dial gauge as shown, and measure the axial runout by turning
the wheel.
...
Rerouting
INFO button
► Setup ►Other
►Routing & Guidance
Set whether route recalculation occurs automatically or manually during route
guidance.
Select an option.
The following op ...