How do you change the serpentine belt on a 2001 Pontiac Alero?

To change the serpentine belt on a 2001 Pontiac Alero, first ensure the engine is off and cool. Locate the belt routing diagram, usually found on a sticker in the engine bay, and use a wrench to relieve tension on the tensioner pulley, allowing you to remove the old belt. Carefully follow the diagram to install the new belt, ensuring it's seated properly on all pulleys. Finally, release the tensioner and double-check the belt's alignment before starting the engine.