2003 Chevrolet Blazer Owner's Manual - Page 148

Climate Controls Climate Control System With this system you can control the heating, cooling and ventilation for yourvehicle. Directing the Airflow Mode Knob: Turn the right knob clockwise or counterclockwise to direct the airflow inside of your vehicle. (Vent): This mode directs air to the instrument panel outlets, with a little air directed toward the floor outlets. (Bi-Level): This mode directs half of the air to the instrument panel outlets, then directs most of the remaining air to the floor outlets. A little air is also directed toward the windshield and the side window outlets. Cooler air is directed to the upper outlets and warmer air to the floor outlets. (Floor): This mode directs most of the air to the floor outlets with a little air directed to the windshield and the side window outlets. Turn the left knob clockwise or counterclockwise to increase or decrease the fan speed. Turn the mode knob to OFF to turn off the fan. The mode knob can also be used to select defog or defrost mode. For more information, see "Defogging and Defrosting" later in this section. f;' +> +A 8f? (Fan): 3-19