1996 GMC Suburban Owner's Manual - Page 134

Mode Knob The right knob on the control panel allows you to choose the direction of air delivery. The control knob can be placed in any position between any two mode settings to blend the flow of air. Optional Climate Control System VENT This setting directs air through the instrument panel outlets. fl +m +e + Use this setting to divide airflow VENT/HEAT ' between the floor outlets and instrument panel outlets. +fl HEATER: This setting directs air through the Fan Knob The knob on the left side of the heating system control panel controls the fan speed. The knob has four speed positions. To increase airflow, move the knob toward HI. To decrease airflow, move it toward LO. To turn the fan off, move the knob to OFF. If you have the air conditioner on,moving the fan knob to OFF also turns off the A/C compressor. floor outlets. \sw; +HDEFOG: This setting directs air to the heater outlets and toward the windshield. - DEFROST This setting directs air toward the windshield. 3-2