2003 Chevrolet Tahoe Owner's Manual - Page 184

Rear Air Conditioning and Heating System and Electronic Climate Controls If your vehicle is equipped with this system, there are controls located in the overhead console and on the back of the console in the rear seat area. The system can be controlled from the overhead controls or the rear controls. The overhead control has three knobs that control airflow speed, temperature and airflow location. To adjust the airflow speed turn the knob located on the left side of the control panel. To adjust the air temperature turn the temperature knob on the center of the control panel to increase or decrease the temperature. To regulate airflow location adjust the right knob on the control panel. The system also AUTO settings that can automatically control the fan speed and/or mode of the air delivery to the rear seating area. 0 (Off): An off setting, located on the overhead climate control panel also allows the driver to turn off the rear seat passenger seat controls from the front seat. Front Controls 3-33