Cadillac (or, "à la française") is a luxury vehicle marque owned by General Motors. Cadillac vehicles are sold in over 50 countries and territories, but mainly in North America.
varies per manufacturer. some are 100,000. some are 60,000. read up in the owners manual. some gm's are never, unless you have current transmission slipping problems.
I don't go by any books or instruction. I change both the fluid and filter every 50,000 miles. I have 163,000 and i am still on the original transmission and it drives just like it should !