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The mode switch can also be used to select the defog
mode. Information on defogging and defrosting can
be found later in this section.
yAz(Fan): Press this switch to increase or
decrease the fan speed. Pressing this switch cancels
automatic operation and allows the operator to manually
select the amount of airflow. Press AUTO to return to
automatic operation.
If the airflow seems low when the fan speed is at the
highest setting, the passenger compartment air filter
may need to be replaced. For more information,
see Passenger Compartment Air Filter on page 3-55
and Scheduled Maintenance on page 6-4.
h(Recirculation): Press this button to control the
air source for the climate control system. If in AUTO
mode, press this button once to select recirculation.
This mode keeps outside air from coming in the vehicle
and recirculates the air in the vehicle. It can be used
to prevent outside air and odors from entering the
vehicle or to help cool the air inside the vehicle
more quickly.
Recirculation is not available in the defrost mode
and shuts off when defog mode is selected. Both of
these features are designed to limit fogging in the
vehicle. If recirculation is selected during defog mode,
it automatically turns off after 10 minutes to limit
problems with fogging.
In some conditions, using recirculation for long periods
of time can cause the air inside the vehicle to become
too dry or stuffy. To prevent this from happening,
after the air in the vehicle has cooled, select AUTO to
return to automatic climate control operation or push
the recirculation button again to select outside air.
Press this button a second time to select outside air.
:(Outside Air): This mode forces the system to
pull air from outside the vehicle. It can be used to bring
fresh air into the vehicle.
Air Quality Sensor: Your vehicle could have an air
quality sensor to help limit the climate control system
from pulling in some harmful exhaust fumes from older,
poorly running, or diesel-equipped vehicles that are
driving near you. This sensor, when active, monitors the
air quality in front of your vehicle and switches to air
recirculation when poor quality air is detected outside
your vehicle. Press the AUTO button on the climate
control to activate the air quality sensor. The word AUTO
comes on the center of the climate control display.
While the air quality sensor senses poor quality air,
the recirculation graphic displays.
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