How do you turn on heated rear screen on Kia Sedona UK 03?

To turn on the heated rear screen in a 2003 Kia Sedona, locate the rear window defrost button on the dashboard, typically marked with a symbol resembling a rectangle with wavy lines. Press this button to activate the heated rear screen. The indicator light will illuminate to show that the defrost function is active. To turn it off, simply press the button again.