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:
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. ...
iPod®
...
Horn Test/Replacement
'09-11 models
Remove the front grille cover.
Disconnect the 1P connector (A) from the horn (B).
@font-face{font-family:
"Honda_SymbolMark ...