GMC 2007 Yukon XL, Owner'S Manual

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Mode Knob
The right knob on the control panel allows you to
choose the direction of air delivery.
H
(Vent): This setting directs the air through the
headliner outlets.
)
(Bi-Level): Air is delivered through the floor
outlets as well as the headliner outlets. The rear
system floor outlets are located directly behind the
second row seats. The flow can be divided between
vent and floor outlets depending upon where the
knob is placed between the settings.
6
(Floor): This setting directs most of the air
through the floor outlets. The rear system
floor outlets are located directly behind the second
row seats.
Rear Air Conditioning and Heating
System and Electronic Climate
Controls
If your vehicle has this system, the rear heat and
air conditioning controls are integrated with the
rear seat audio controls located in the center
console. The system can be controlled from the
front controls as well as the rear controls.
To turn the system on, press the AUX button on
the front climate control system, an indicator will be
lit. Pressing the AUX button the first time will
turn the rear system on in a mimic mode. In this
mode, the airflow in the rear will be approximately
the same direction, temperature, and fan speed
as the front. Pressing the AUX button again
will turn the rear system and the indicator off.
If the rear controls are adjusted, the system will
enter a rear independent mode. Airflow in the rear
will then be directed according to the settings of
rear controls. The rear system can be turned off by
pressing the AUX button on the front climate
control system and the indicator will turn off.
If the indicator in the front AUX button is off, the
rear system is off.
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