How do you you replace a serpentine belt on Hyundai Tucson 2007?

To replace the serpentine belt on a 2007 Hyundai Tucson, first, disconnect the negative battery terminal for safety. Use a wrench or ratchet to relieve tension on the serpentine belt tensioner, then remove the old belt from the pulleys. Refer to the belt routing diagram, typically found on a sticker under the hood, to install the new belt correctly. Finally, reapply tension using the tensioner and reconnect the battery.