How do you change the serpentine belt on a 2008 kia rio 5?

To change the serpentine belt on a 2008 Kia Rio 5, first, ensure the engine is off and cool. Use a wrench to rotate the tensioner pulley counterclockwise, which will relieve tension on the belt. Carefully remove the old belt, noting its routing path, and then install the new belt in the same configuration. Finally, rotate the tensioner again to allow the belt to fit snugly, and double-check that it is properly aligned on all pulleys before starting the engine.