Expedition Rear Heater Controls
If you purchased one of our 4 inch to 8 inch conversion kits for the 18+ Expedition, the rear temperature controls are converted to on screen controls rather than physical buttons. You will use the on screen buttons to adjust the temperature up or down. No feedback or temperature set point will display on the new screen for the rear climate due to the conversion from manual to automatic climate controls.
https://www.4dtech.com/18-ford-expedition-4-to-8-touchscreen-conversion-w-sync-3/
https://www.4dtech.com/19-20-ford-expedition-4-to-8-touchscreen-conversion-w-sync-3/