Just read the manual and confirmed what I just said. After 6000 miles the maint light flashes for a couple seconds and after 7500 it stays on.

Manual says that the light is for "scheduled maintenance" and if you look at their table of scheduled maintenance, the oil change interval for "Normal driving" is 7500 miles. Of course depending on the mileage inteval, you will have other maintenence items to be addressed as well.

In short, according to the manual the interval of the maintenence light coincides with the recommended interval for oil changes.