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:
Opening the Hood
1. Park the vehicle on a level surface, and set
the parking brake.
2. Pull the hood release handle under the
lower left corner of the dashboard.
► The hood will pop up slightly.
3. Push ...
Start-up
The navigation system starts automatically when you turn the ignition to
ACCESSORY (I) or ON (II). At start-up, the following Confirmation screen is
displayed.
1. Select Change Language.
► ...
Secondary Shaft Disassembly, Inspection, and Reassembly (A/T)
Inspect the thrust needle bearings and the needle bearings for galling
and rough movement.
Inspect the splines for excessive wear and damage.
Check the shaft bearing s ...