when does ATF/radiator coolant/differential oil need changing?

[tony toyota]

I am original owner of my 2009 Yaris sedan with 35k, automatic cruise and power options. this car is indestructible. I got a series of recall notices and decided to bring it to the dealer. The dealer tried tot sell me a "30K package" now i change the oil/filter every 5k and just recently replaced the brakes and rotors. The car runs great. Now they said according to maint schedule I need to change tranni fluid, front differential oil and coolant. Is this true or are they just trying to sell me abn unnecessary job?? It is odd to me the car needs this with so little milage.