2003 GMC Sierra 1500 Pickup Owner's Manual - Page 176

is delivered through the floor outlets, the windshield defroster outlets and the side window defroster outlets. The air flow can be divided between floor and defrost depending upon where the knob is placed between the settings. through the windshield defroster outlets, side window defroster outlets and some through the floor outlets. % (Defog): Airflow 9 (Defrost): This setting directs most air (Fan): Turn the left knob clockwise or counterclockwise to increase or decrease the fan speed. Turn the knob to the off position to turn off the fan. If the knob is in off outside air will still enter the vehicle, and will be directed based on the position of the mode knob. The temperature can also be adjusted using the temperature levers. Turn the right knob clockwise or counterclockwise to direct the airflow inside of your vehicle. To change the current mode, select one of the following: 6@ Dual Climate Control System With this system you can control the heating, cooling and ventilation for your vehicle. f;' (Vent): This mode directs air to the instrument panel vents. +2(Bi-Level): This mode directs half of the air to the instrument panel vents; then directs most of the remaining air to the floor vents. A little air is directed toward the windshield and the side window vents. Cooler air is directed to the upper vents and warmer air to the floor vents. (ri (Floor): This mode directs most of the air to the floor vents with a little air directed to the windshield and the side window vents. 3-2 1