GMC 2005 Automobile User 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.
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 and will turn off when the air conditioning is off.
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.
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.
On hot days, open the windows long enough to let hot
inside air escape. This reduces the time it takes for
your vehicle to cool down. Then keep your windows
closed for the air conditioner to work its best.
On cool, but sunny days while using manual operation
of the automatic system, use bi-level to deliver warm
air to the floor and cooler air to the instrument
panel outlets. To warm or cool the air delivered, turn the
temperature knob to the desired setting.
In AUTO mode the system will cool and dehumidify the
air inside the vehicle. Also while in AUTO mode, the
system will maximize its performance by using
recirculation as necessary.
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