transmission 2001 se grand am

I want to change the filter and fluid in the transmission, How much fluid goes back in with just a filter change, this car does not have a dip stick it just has a red plug in the top of the trans?

tony

someone has surely changed the tranny flluid in there car, I want to do this on the weekend, any help will be appreciated.

I have not done mine yet, but will shortly. I would recommend having the whole system drained and vaccumed out. From what I have heard, less than half of the fluid is replaced.