Replacing serpentine belt on 2002 suzuki aerio?

To replace the serpentine belt on a 2002 Suzuki Aerio, first, ensure the engine is off and cool. Locate the serpentine belt routing diagram, usually found on a sticker in the engine bay, then relieve tension on the belt by using a wrench on the tensioner pulley. Remove the old belt and install the new one following the routing diagram, ensuring it sits properly on all pulleys. Finally, double-check the belt alignment and tension before starting the engine.