Important Ventilating Information - Ford F150 1997 Owner's Manual

Starting
Important ventilating
information
If the engine is idling while the
vehicle is stopped in an open area
L R
for long periods of time, open the
windows at least 2.5 cm (one
inch).
AUTO
L U
OFF
PANEL PANEL &
FLOOR
A/C
FLOOR
MAX FLR
A/C & DEF
DEF
Adjust the heating or air
conditioning (if equipped) to bring
in fresh air.
Improve vehicle ventilation by
keeping all air inlet vents clear of
snow, leaves and other debris.
90