Automatic Control
For the most efficient operation, you ,should.set the
system temperature and press the knob. The system will
select the best fan speed and air flow, settings to keep
you comfortable. The air conditioning compressor will
run
if
the outside temperature is above 40°F
(4.5
”
C).
YOU may notice
a
delay
of
three to four minutes before
the fan comes on.
Manual Control
If
you prefer to manually control the heating, cooling
and ventilation
in
your vehicle, push UPPER, BI-LEV,
LOWER, DEFOG or
DEE
AUTO
will
go
off
the
display. Set the system to the temperature and fan
speed you want. The system will try to maintain the
temperature you set using the mode you select. The
following suggestions will help the system run more
efficiently in manual mode.
Air Conditioning
On
very hot days, open the windows long enough to
let hot inside
air
escape. This reduces the time the
compressor has to run, which should help fuel economy.
For quick cool-down on very hot days, use RECIRC. If
this setting is used for long periods
of
time, the air
in
your vehicle may become too dry.
For normal cooling on hot days, use UPPER with the
A/C
button pushed in. The system will.bring
in
outside
air and cool it.
On
cool
but .sunny days, the sun may warm your upper
,
body, but your lower body may not be warm enough.
You
can
use BI-LEV with the A/C’ button pushed
in.’
The system will bring in outside air and direct it to your
upper body, while sending slightly warmed air to your
lower body. You may notice this temperature difference
more at some times than.others.
Heating
On cold days use LOWER. The system
will
bring
in
outside air, heat it and send it to the floor ducts.
If
your vehicle has
an
engine coolant heater, you, can use
it to help your system provide warm air faster when it’s
cold outside
(0°F
(-18°C)
or lower). An engine coolant
heater warms the‘coolant your engine and heating
system use to provide heat. See “Engine Coolant
Heater” in the Index.
Ventilation
For mild outside temperatures when little heating
or
cooling is
needed,
use-UPPER to direct outside
air
through
your vehicle.
Your
vehicle
also
has the flow-through
ventilation system described later in
this
section.
3-6
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