GMC 1998 Yukon - Air Conditioning

Generally, the upper vents are used for air conditioning
and the floor vents for heating. The control knob can be
set to any blend setting.
To adjust the air temperature, turn the temperature knob
on the right
of the control panel.
For warmer air, turn the
knob to the right toward the red,
and for cooler air, turn the knob to the left.
Air Conditioning
On hot days, open the windows long enough to let hot
air inside 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.
The recirculation button, between the fan and
temperature knobs, allows the air inside your vehicle to
be recirculated. This setting helps to maximize your air
conditioner’s performance
and your vehicle’s fuel
economy. This setting also cools the air the fastest and
can be used to keep unwanted odors and/or dust from
entering the vehicle. When using the air conditioner,
turn
off recirculation after the vehicle reaches a
comfortable interior temperature. When the right knob
on the control panel
is between HEATER and
DEFROST, the recirculation feature will not function.
The
A/C button, between the temperature and mode
knobs, allows the air coming into your vehicle to be
The rear control works just like the front control.
It will
allow second seat passengers to adjust the controls as
they desire.
cooled. This setting is useful for normal cooling on hot
days. When you use
A/C with the recirculation button
pushed
in, turn off recirculation as soon as the vehicle
reaches a comfortable interior temperature.
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