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Circulation Control
Use this button to choose be-
tween outside air intake or
recirculation of the air inside
the vehicle. A lamp will illu-
minate when you are in recir-
culate mode. Only use the re-
circulate mode to temporarily
block out any outside odors,
smoke, or dust and to cool the
interior rapidly upon initial
start up in very hot or humid weather.
NOTE:
Continuous use of the recirculate mode may
make the inside air stuffy and window fogging may
occur. Extended use of this mode is not recommended.
In cold or damp weather, the use of the Recirculate
position will cause windows to fog on the inside because
of moisture build up inside the vehicle. For maximum
defogging, select the Outside Air position.
NOTE:
Recirculation Mode will not operate in floor,
mix or defrost modes.
Air Filtration System – If Equipped
An air filter is included in the optional Security Group.
Filter media includes a particle filtration layer and a
charcoal layer. The filter will reduce, but not eliminate,
diesel and agricultural smells. The filter acts only on air
coming from outside the vehicle; it does not filter air
inside the passenger compartment. The filter’s normal
service life is 12,000 miles (20,000 km) or one year. The air
filter change schedule coincides with that for engine oil
and filter. As with oil changes, the interval is shorter for
heavy duty service or dusty conditions. See your autho-
rized dealer for service.
202 UNDERSTANDING YOUR INSTRUMENT PANEL