Agreed. Mexico City, for example, has four ¨central¨ bus stations, all very distant from one another (and the ¨centro,¨ for that matter).
But to answer your question directly, I was referring to the Central de Autobuses, also known as Central Vieja, one block east of Calz Independencia Sur, on Calle Estadio. A lot of second class services, including the carrier that serves Lake Chapala, use this station. A 20 min walk or 5 min taxi ride from the centro (or ¨downtown¨). This is not the same as the large first class station which is quite distant from the centro.
