Automatic Operation - Saturn 2004 L-Series Owner's Manual

Automatic Operation

To switch the temperature display from degrees
Fahrenheit to degrees Celsius, press and hold the
AUTO, ECON, and MODE buttons at the same time.
AUTO (Automatic): When automatic operation is active
the system will control the inside temperature, the air
delivery, and the fan speed.
OFF: Press this button to turn off the entire climate
control system. Outside air will still enter the vehicle.
Use the steps below to place the entire system in
automatic mode:
1. Put the fan knob on AUTO and press the AUTO
button.
When AUTO is selected, the display will change to
show the current set temperature, delivery mode
and fan speed.
When auto is selected, the air conditioning operation
and air inlet will be automatically controlled. The
air conditioning compressor will run when as
necessary. The air inlet will normally be set to
outside air. If it's hot outside, the air inlet may
automatically switch to recirculate inside air to help
quickly cool down your vehicle. The light on the
button will illuminate in recirculation.
2. Set the temperature.
To find your comfort setting, start with a 71°F (22°C)
temperature setting and allow about two to three
minutes for the system to regulate. Turn the
temperature knob to adjust the temperature setting
as necessary. If you choose the temperature setting
of 60°F (15°C) the system will remain at the
maximum cooling setting. If you choose the
temperature setting of 90°F (32°C) the system will
remain at the maximum heat setting. Choosing either
maximum setting will not cause the vehicle to heat or
cool any faster.
Be careful not to cover the sensor located on the
top of the instrument panel near the windshield. This
sensor regulates air temperature based on sun
load, and also turns on your headlamps. See
"Sensor" later in this section for more information.
To avoid blowing cold air in cold weather, the
system will delay turning on the fan until warm air is
available. The length of delay depends on the
engine coolant temperature. Pressing the fan switch
will override this delay and change the fan to a
selected speed.
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