How do you change belts on 99 Kia Sephia?

To change the belts on a 1999 Kia Sephia, start by disconnecting the negative battery terminal for safety. Next, remove any components obstructing access to the belts, such as the engine cover. Loosen the tensioner pulley by turning the tensioner bolt and remove the old belt. Finally, install the new belt following the correct routing path, re-tighten the tensioner, and reassemble any removed components before reconnecting the battery.