Automatic Operation - GMC 2008 Envoy Denali Owner's Manual

Automatic Operation

AUTO (Automatic): When automatic operation is
active, the system will control the inside temperature,
the air delivery mode, and the fan speed.
Use the steps below to place the entire system in
automatic mode:
1. Press the AUTO button.
When AUTO is selected, the air conditioning
operation and air outlet mode will be automatically
controlled. The air conditioning compressor will
run continuously when the outside temperature
is over approximately 40°F (4°C). The air inlet will
normally be set to outside air. If it's hot outside,
the air inlet will automatically switch to recirculate
inside air to help quickly cool down your vehicle.
2. Set the driver's and passenger's temperature.
To find your comfort setting, start with a 72°F (22°C)
temperature setting and allow about 20 minutes for
the system to adjust. Turn the driver's or passenger's
side 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 may not cause the vehicle to heat
or cool any faster.
Manual Operation
To change the current setting, select one of the
following:
w9x
(Fan): This button allows you to manually
adjust the fan speed. Press the up arrow to increase fan
speed and the down arrow to decrease fan speed. The
display will change to show you the selected fan speed
and the driver's side temperature setting for five seconds.
C
(Mode): Press this button to manually change the
direction of the airflow in your vehicle. Keep pressing the
button until the desired mode appears on the display.
The display will change to show you the selected
air delivery mode and the driver's temperature setting
for five seconds.
H
(Vent): This mode directs air to the instrument
panel outlets.
)
(Bi-Level): This mode directs approximately half
of the air to the instrument panel outlets, then directs the
remaining air to the floor outlets. A little air is directed
toward the windshield and the side window outlets.
Cooler air is directed to the upper outlets and warmer
air to the floor outlets.
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