Dodge 2009 Challenger, Owner'S Manual

Page: 237 / 541

If Outside Ambient
Temperature Is Mode Overrides To Temperature Overrides To Rear Window Defroster
Active
Less than 40°F Mix Full Heat Yes
Between 40°F and 80°F No Override No Override No
More than 80°F Bi-Level Full Cool No
NOTE:
•
The feature can be disable by parking the vehicle with
the blower control set to the “O” (or OFF) position.
•
For maximum performance, it is recommended that
the vehicle is parked with the blower control set to the
“High” (full clockwise) position.
Operating Tips
NOTE: Refer to the chart at the end of this section for
suggested control settings for various weather condi-
tions.
Summer Operation
The engine cooling system in air-conditioned vehicles
must be protected with a high-quality antifreeze coolant
to provide proper corrosion protection and to protect
against engine overheating. A 50% solution of ethylene
glycol antifreeze coolant in water is recommended. Refer
to “Maintenance Procedures” in Section 7 of this manual
for proper coolant selection.
Winter Operation
Use of the air Recirculation mode during winter months
is not recommended because it may cause window
fogging.
Vacation Storage
Anytime 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 the
UNDERSTANDING YOUR INSTRUMENT PANEL 235
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