How do you change the Fahrenheit to Celsius on Hyundai Sonata 2012?

To change the temperature display from Fahrenheit to Celsius on a 2012 Hyundai Sonata, press the "Setup" button on the audio system. Navigate to the "Settings" menu, then select "Units." From there, you can switch the temperature display from Fahrenheit to Celsius. Confirm your selection, and the change will take effect.