Mercury Sable 1999 - Manual (Page 21)

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-Distributes outside air through the windshield
defroster ducts. It can be used to clear ice or fog
from the windshield. If the temperature is about
10°C (50°F) or higher, the air conditioner will
automatically dehumidify the air to prevent fogging.
Operating tips
• In humid weather, select
before driving. This
will prevent your windshield from fogging. After a
few minutes, select any desired position.
• To prevent humidity buildup inside the vehicle,
don’t drive with the climate control system in the
OFF position.
• Don’t put objects under the front seat that will
interfere with the airflow to the back seats.
• Remove any snow,
ice or leaves from
the air intake area
(at the bottom of
the windshield under
the hood).
• If the air conditioner works well in MAX A/C, but
not in A/C, this may indicate that the cabin air
filter (if equipped) needs to be replaced.
• If your vehicle has been parked with the windows
closed during hot weather, the air conditioner will
do a much faster job of cooling if you drive for
two or three minutes with the windows open. This
will force most of the hot, stale air out of the
vehicle. Then operate your air conditioner as you
would normally.
• When placing objects on top of your instrument
panel, be careful to not place them over the
defroster outlets. These objects can block airflow
and reduce your ability to see through your
windshield. Also, avoid placing small objects on top
of your instrument panel. These objects can fall
down into the defroster outlets and block airflow
and possibly damage your climate control system.
Controls and features
21