Does "carriage" mean that I am on my own on this SNCF itinerary?

I am using the SNCF Android app to plan a trip to a small French city.

While the first leg of the trip is by the TGV, the second leg is by "carriage".

My dictionary explains "carriage" as either:

• A rail car, especially one designed for the conveyance of passengers.
• A wheeled vehicle, generally drawn by horse power.

But the icon looks awfully like a personal car. And the map icon on the right opens the system's itinerary app.

My question: Is that leg provided by SNCF and included in the ticket's price? Or are they telling me that I am on my own for that leg?