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:
ATF Cooler Cleaning (A/T)
Special Tools Required
ATF Cooler Cleaner GHTTTCF6H
Magnetic Nonbypass Spin-On Filter GTHGNBP2
*: Available through the Honda Tool and Equipment Program 888-424-6857.
Before installing an ...
Transmission End Cover Park Lever Stop Inspection and Adjustment (A/T)
Set the park lever in the P position.
Measure the center-to-center distance (A) between the park pawl shaft (B)
and the park lever roller pin (C).
Sta ...
Rectifier Test
Check for continuity in each direction, between the B terminal and P terminals,
and between the E terminal and P terminals of each diode pair. All diodes should
have continuity in only one ...