How do you change transmission oil on a 2005 Suzuki Forenza?

To change the transmission oil on a 2005 Suzuki Forenza, start by warming up the engine slightly to thin the oil for easier drainage. Then, locate the transmission oil pan under the vehicle, remove the drain plug, and let the old oil drain completely. Replace the drain plug, refill the transmission with new oil through the dipstick or fill port, and check the level to ensure it's within the recommended range. Always dispose of the old oil properly and check for leaks after completing the procedure.