How do you install a thermostat in 2005 nassin maxima?

To install a thermostat in a 2005 Nissan Maxima, first ensure the engine is cool and disconnect the negative battery terminal. Remove the engine cover if necessary, then drain the coolant from the radiator. Unbolt and remove the old thermostat housing, take out the old thermostat, and clean the mating surfaces. Install the new thermostat, ensuring it is positioned correctly, then reattach the housing, refill the coolant, and reconnect the battery.