Ford F-150 2000 Introduction Manual page 60

Controls and features
The audio system automatically switches to single channel reception if it
will improve the reception of a station normally received in stereo.
Audio system warranties and service
Refer to the "Warranty Guide" for audio system warranty information.
If service is necessary, see your dealer or a qualified technician.
CLIMATE CONTROL SYSTEM
Heater only system (if equipped)
Fan speed control
Controls the volume of air circulated
in the vehicle.
Temperature control knob
Controls the temperature of the
airflow inside the vehicle. On
heater-only systems, the air cannot
be cooled below the outside
temperature.
Mode selector control
Controls the direction of the airflow
to the inside of the vehicle.
PANEL-Distributes outside air through the instrument panel registers.
OFF-Outside air is shut out and the fan will not operate. For short
periods of time only, use this mode to prevent undesirable odors from
entering the vehicle.
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PANEL
COOL WARM
COOL WARM
PANEL