How do you change thermostat on 05 Kia Sorento?

To change the thermostat on a 2005 Kia Sorento, first ensure the engine is cool and disconnect the negative battery cable. Drain the coolant from the radiator, then remove the thermostat housing by unbolting it. Replace the old thermostat with the new one, making sure the rubber gasket is properly seated, and reassemble everything by reversing the disassembly process. Finally, refill the coolant and check for leaks before starting the engine.