System Airflow: Defrost

WARNING: This page is about a different car, the 2003 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

When DEFROST is selected:

The Recirc request button is disabled. The air inlet door actuator positions the air inlet door to admit only outside air into the passenger compartment.
The floor door actuator positions the floor door in the closed position, and the panel/defrost door actuator positions the panel/defrost door to direct airflow to the defrost duct and side window demisters.
Temperature control can be adjusted by directing the airflow through and around the heater core.
The A/C request button is disabled.
The A/C compressor will operate automatically if the outside temperature is above 2°C (35°F).
The blower motor is on.