Outlet Adjustment; Rear Air Conditioning And Heating System - GMC 2009 Yukon XL Owner's Manual

Outlet Adjustment

Use the air outlets located in the center and on the side
of the instrument panel to direct the airflow.
Operation Tips
•
Keep the hood and front air inlets free of ice, snow,
or any other obstruction (such as leaves). The
heater and defroster will work far better, reducing
the chance of fogging the inside of the windows.
•
When you enter a vehicle in cold weather, press
the fan up button to the maximum fan level
before driving. This helps clear the intake ducts of
snow and moisture, and reduces the chance of
fogging the inside of the window.
•
Keep the air path under the front seats clear of
objects. This helps air to circulate throughout
the vehicle.
•
Adding outside equipment to the front of the
vehicle, such as hood-air deflectors, may affect the
performance of the heating and air conditioning
system. Check with your dealer/retailer before
adding equipment to the outside of the vehicle.
Rear Air Conditioning and Heating
System
For vehicles with this system, the rear controls are
three knobs located in the headliner. The system can
also be controlled with the front controls.
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
REAR: Press the REAR button on the front climate
control system to turn the rear climate control system on
or off. An indicator comes on when the rear system is
on. See Climate Control System on page 3-22 or
Dual Automatic Climate Control System on page 3-25.
The rear system can also be turned off by turning
the rear fan knob to the 9 position.
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