Had this issue a couple times and couldn't keep remembering so decided to answer since Kia sucks and has no answers just problems. LOL ... All you do is: with the heater or A/C on push the AMB button and the down arrow to the thermostat at the same time for a few seconds. I have a 2003 Kia Optima and it works for mine.Anytime you disconnect battery source you will need to do this unless u wanna keep converting:) AMB and the OFF button will not work on this model. It will only turn off heat and a/c.
To change the temperature settings from Celsius to Fahrenheit on a 2011 Kia Optima, start by turning on the vehicle and the climate control system. Press the "Menu" button on the dashboard, and then navigate to the "Settings" option. Look for the "Units" or "Temperature" setting, and select Fahrenheit to make the change. Save the settings, and the display should now show temperatures in Fahrenheit.
To change the outside temperature display from Celsius to Fahrenheit on a 2012 Kia Optima, locate the "Settings" button on the dashboard or infotainment system. Access the "Units" or "Temperature" option in the menu, then select Fahrenheit. Confirm the change, and the display should now show the outside temperature in Fahrenheit. If you can't find the option, refer to the owner's manual for detailed instructions.
To change the temperature display from Fahrenheit to Celsius in a Subaru Forester, first, turn on the vehicle and locate the settings menu on the infotainment screen. Navigate to the "Settings" or "Vehicle Settings" section, then look for "Units" or "Temperature Units." Select the option to switch from Fahrenheit to Celsius, and confirm your selection. The display should now show temperatures in Celsius.
To change the temperature display from Fahrenheit to Celsius in a Toyota Prius, access the settings menu on the infotainment system or dashboard display. Look for "Settings" or "Climate Control," then find the option for temperature units. Select "Celsius" to switch from Fahrenheit. Once changed, the temperature readings will reflect in Celsius.
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.
To change the temperature gauge from Fahrenheit to Celsius in a Lincoln Navigator, access the settings menu on the vehicle's infotainment system. Navigate to the "Settings" option, then select "Display" or "Units." From there, you can choose your preferred temperature unit, switching from Fahrenheit to Celsius. Make sure to save your changes before exiting the menu.
To change the temperature display from Celsius to Fahrenheit on a Nissan Murano, press the "Menu" button on the center console or dashboard. Navigate to the settings or vehicle settings option, then look for the temperature unit setting. Select Fahrenheit to switch the display. Finally, confirm your selection, and the temperature should now display in Fahrenheit.
To change the temperature display from Celsius to Fahrenheit in a 2014 Kia Soul, press the "Menu" button on the dashboard. Navigate to the "Settings" option, then select "Units." From there, you can switch the temperature unit from Celsius to Fahrenheit. Make sure to save your changes before exiting the menu.
To change the temperature gauge from Fahrenheit to Celsius on a 2013 Hyundai Sonata Hybrid, start by turning on the car and accessing the settings on the infotainment system. Navigate to the "Setup" or "Settings" menu, then look for "Climate" or "Units." Select the temperature unit option and switch from Fahrenheit to Celsius. Finally, confirm your selection to save the changes.
To change the temperature display from Fahrenheit to Celsius in a 2013 Kia Sorento, start by turning on the vehicle's ignition. Then, locate the climate control settings on the dashboard. Press the "Menu" button, navigate to the "Settings" or "Options" menu, and look for the temperature unit setting. Choose Celsius, and confirm your selection to apply the change.
If you know how much Fahrenheit use; (F-32)X 5/9 = Celsius (example; 1° Fahrenheit = -17.2° Celsius) If you know how much Celsius use; C x 9/5 + 32 = Fahrenheit (example: 1° Celsius = 33.8 ° Fahrenheit) There is one temperature where they are the same. (-40C = -40F)
1 degree Celsius = 33.8 degrees Fahrenheit 2 degrees Celsius = 35.6 degrees Fahrenheit 35.6 - 33.8 = 1.8