How do you change the transmission fluid in a B2500 Mazda pickup?

To change the transmission fluid in a Mazda B2500 pickup, first, ensure the vehicle is on a level surface and securely lifted. Remove the transmission pan bolts and carefully detach the pan to drain the old fluid. Replace the filter if applicable, clean the pan, and reinstall it with a new gasket. Finally, refill the transmission with the appropriate type and amount of new fluid through the dipstick tube, checking the level as you go.