FORD 2003 F-150 v.4 - Manual (Page 42)

ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC)
SYSTEM
Temperature conversion: Press the MAX A/C and DEF at the
same time (for one second) to switch between Fahrenheit and Celsius.
The English/Metric (E/M) control on the trip computer and message
center (if equipped) will not change temperature display.
1. OFF: Press to turn the system
OFF.
2. AUTOMATIC: Press to engage
automatic mode. The system will
determine fan speed, airflow
location, and outside or recirculated air depending on the selected
temperature. Fan speed will remain automatic unless the thumbwheel is
turned.
Rear defrost (if equipped): Removes ice and fog from the rear
window.
Climate Controls
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