GMC 2011 Sierra - Manual (Page 286)

Black plate (4,1) GMC Sierra Owner Manual - 2011
8-4 Climate Controls
Climate Control Systems (with Heater Only)
With this system the heating and ventilation can be controlled.
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
Temperature Control: Turn
clockwise or counterclockwise
to increase or decrease the
temperature inside the vehicle.
9 (Fan Control): Turn clockwise
or counterclockwise to increase or
decrease the fan speed. Turn the
knob all the way counterclockwise
to turn the front system off.
Air Delivery Mode Control: Turn
clockwise or counterclockwise
to increase or decrease the
temperature inside the vehicle.
The knob can be positioned
between two modes to select a
combination of those modes.
Select from the following:
H (Vent): Air is directed to the
instrument panel outlets.
) (Bi-Level): Air is divided
between the instrument panel and
floor outlets.