Air Conditioning - GMC 2004 Sierra 1500 Pickup Owner's Manual

Whenever you press AUTO, the display will change to
show the following:
•
The current driver's set temperature and an arrow
for five seconds
•
The current passenger's set temperature setting
and an arrow for five seconds
•
The automatic air delivery mode and fan speed
If the driver's and passenger's temperature settings are
the same when AUTO is pressed, the temperature
setting and both arrows will be displayed for
five seconds along with the automatic air delivery
mode and fan speed. After the five second update, the
display will change to show the temperature setting,
both arrows and AUTO.
3-30

Air Conditioning

#
(Air Conditioning): Press this button to turn the air
conditioning (A/C) compressor on and off. The
snowflake symbol will appear on the display when the
A/C is on.
Pressing this button when the outside temperature is
too cool for air conditioning will make the snowflake
symbol flash three times and then turn off to let
you know the air conditioning mode is not available. If
the air conditioning is on and the outside temperature
drops below a temperature which is too cool for air
conditioning to be effective, the snowflake symbol will
turn off to let you know the air conditioning mode
has been canceled.
^
(Air Conditioning Off): On some vehicles, when
you turn the air conditioning off, this symbol will appear
on the display. If your vehicle does not have this
symbol, the snowflake symbol will turn off to let you
know the air conditioning is off.
When air conditioning is selected or in AUTO mode, the
system will run the air conditioning automatically to cool
and dehumidify the air entering the vehicle. If you select
A/C off while in front defrost, defog or recirculation, the
A/C snowflake symbol will turn off, but the A/C
compressor will still run to help prevent fogging.