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:
Immobilizer System
The immobilizer system prevents a key that has not been pre-registered from
starting the engine. Each key contains electronic transmitters that use
electronic
signals to verify the key.
Pay att ...
Handles and Remote Openers
Rear Door Outer Handle Replacement
Special Tools Required
KTC Trim Tool Set SOJATP2014
*Available through the Honda Tool and Equipment Program; call 888-424-6857
NOTE:
Put on glove ...
Ignition Coil and Spark Plug Removal/Installation
Remove the under-cowl panel.
Disconnect the ignition coil connectors (A), then remove the ignition
coils (B).
Remove the spark plugs, and inspect them.
...