Operating Tips
NOTE:
Refer to the chart at the end of this section for
suggested control settings for various weather
conditions.
Summer Operation
The engine cooling system must be protected
with a high-quality antifreeze coolant to provide
proper corrosion protection and to protect
against engine overheating. A solution of 50%
OAT (Organic Additive Technology) coolant that
meets the requirements of FCA Material Stan-
dard MS.90032 and 50% water is recom-
mended. Refer to “Fluids and Lubricants” in
“Technical Specifications” for proper coolant se-
lection.
Winter Operation
Use of the Air Recirculation mode during winter
months is not recommended because it may
cause window fogging.
Vacation/Storage
Before you store your vehicle, or keep it out of
service (i.e., vacation) for two weeks or more,
run the air conditioning system at idle for about
five minutes, in fresh air with the blower setting
on high. This will ensure adequate system lubri-
cation to minimize the possibility of compressor
damage when the system is started again.
Window Fogging
Interior fogging on the windshield can be quickly
removed by turning the mode selector to De-
frost. The Defrost/Floor mode can be used to
maintain a clear windshield and provide suffi-
cient heating. If side window fogging becomes
objectionable, increase blower speed to im-
prove airflow and clearing of the side windows.
Vehicle windows tend to fog on the inside in mild
but rainy or humid weather.
NOTE:
• Recirculate without A/C should not be used
for long periods, as fogging may occur.
• Automatic Temperature Controls (ATC) will
automatically adjust the climate control set-
tings to reduce or eliminate window fogging
on the front windshield. When this occurs,
recirculation will be unavailable.
Outside Air Intake
Make sure the air intake, located directly in front
of the windshield, is free of obstructions, such as
leaves. Leaves collected in the air intake may
reduce airflow, and if they enter the plenum,
they could plug the water drains. In Winter
months, make sure the air intake is clear of ice,
slush, and snow.
A/C Air Filter
The climate control system filters outside air
containing dust, pollen and some odors. Strong
odors cannot be totally filtered out. Refer to
“Dealer Service” in “Servicing And Maintenance”
for filter replacement instructions.
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