How do you change transmission filter 2006 mercury mariner?

To change the transmission filter on a 2006 Mercury Mariner, first ensure the vehicle is on a level surface and the engine is off. Drain the Transmission Fluid by removing the transmission pan, then replace the old filter with a new one, ensuring the rubber gasket is in place. Reinstall the pan, tighten the bolts to the specified torque, and refill the transmission with new fluid as per the manufacturer's recommendations. Finally, start the engine and check for leaks, adding more fluid if necessary.