How do you replace the thermostat 2009 dodge caliber?

To replace the thermostat on a 2009 Dodge Caliber, first ensure the engine is cool and disconnect the negative battery cable. Remove the upper radiator hose connected to the thermostat housing, then unbolt the housing to access the thermostat. Replace the old thermostat with a new one, ensuring the gasket is properly seated, and reassemble by reversing the steps. Finally, refill the coolant, check for leaks, and reconnect the battery.