Climate Control Systems (with Heater Only)

GMC Sierra / GMC Sierra Owners Manuals / Climate Controls / Climate Control Systems / Climate Control Systems (with Heater Only)

With this system the heating and ventilation can be controlled.

B. Temperature Control 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.

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. (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:

(Bi-Level): Air is divided between the instrument panel and floor outlets. (Vent): Air is directed to the instrument panel outlets.

(Floor): Air is directed to the floor outlets, with some air directed to the windshield, side window, and second row floor outlets. In this mode, the system automatically selects outside air. (Bi-Level): Air is divided between the instrument panel and floor outlets.

(Defog): This mode clears the windows of fog or moisture. Air is directed to the windshield, floor outlets, and side window vents. (Floor): Air is directed to the floor outlets, with some air directed to the windshield, side window, and second row floor outlets. In this mode, the system automatically selects outside air.

(Defrost): This mode removes fog or frost from the windshield more quickly. Air is directed to the windshield and the side window vents, with some air directed to the floor vents. The system automatically forces outside air into the vehicle. (Defog): This mode clears the windows of fog or moisture. Air is directed to the windshield, floor outlets, and side window vents.

Do not drive the vehicle until all the windows are clear. (Defrost): This mode removes fog or frost from the windshield more quickly. Air is directed to the windshield and the side window vents, with some air directed to the floor vents. The system automatically forces outside air into the vehicle.

Do not drive the vehicle until all the windows are clear.

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