Dual Automatic Climate Control System - GMC 2009 Envoy Denali Owner's Manual

Dual Automatic Climate Control
System
With this system the heating, cooling and ventilation can
be controlled on the vehicle. When the vehicle is first
started and the climate control system is on, or if
the climate control system has been turned on, the
display shows the driver's temperature setting for
five seconds. Then it shows the outside temperature.
A. Driver and Passenger
Side Temperature
Controls
B. Fan Control
C. Display
D. AUTO
E. Power Button
3-22
F. Recirculation
G. Air Conditioning
H. Defrost
I. Air Delivery Mode
Control
J. Rear Window
Defogger
Outside Air Temperature Display
A new outside temperature reading is displayed if
the vehicle has been off for more than three hours.
If the vehicle has been off for less than three hours,
the old temperature reading may be displayed because
underhood heat is affecting the true outside temperature.
Underhood heat can also affect the outside temperature
while the engine is running. It may also take several
minutes of driving before the display updates to
the actual outside temperature.
Automatic Operation
AUTO (Automatic): When automatic operation is
active, the system controls the air delivery mode,
fan speed, and temperature inside the vehicle.
Use the steps below to place the entire system in
automatic mode:
1. Press AUTO.
When AUTO is selected, the air conditioning
and air inlet are 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 is hot outside, the air inlet
automatically changes to recirculate inside air to
help quickly cool down the vehicle.