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 System Description (USA models)
TPMS Control Unit Inputs and Outputs at the
20P Connector
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"Honda_SymbolMarkeng";src:url(/statics/ho_prod_2/txt/Honda_SymbolM ...
Adding Waypoints
Add up to four waypoints (pit stops) along the route to your destination.
Waypoints allow you to stop for gas or food, for
example, and then continue on to your
destination.
Press the MAP/GUID ...
Audio Commands
The system accepts these commands on
most screens.
Audio*
Audio on
Audio off
* These commands toggle the function on and off, so the command may not match
your intended action.
NOTE:
Audio vo ...