How do you change serpentine belt in a 2003 suzuki XL7?

To change the serpentine belt on a 2003 Suzuki XL7, first, disconnect the negative battery terminal for safety. Locate the belt tensioner and use a wrench or ratchet to relieve tension on the belt. Remove the old belt by noting its routing and then install the new belt following the same path. Finally, release the tensioner to secure the new belt and reconnect the battery.