1998 GMC Savana Van Owner's Manual - Page 141

Rear Air Conditioning and Rear Heater If your vehicle has a rear conditioning and rear heater air to system combination, controls are provided regulate the temperature, location and speedof the airflow. vent airflow or to the right for headliner vent air flow. Generally, the upper ventsare used for air conditioning and the floor vents for heating. The control knob can be set to any blend setting. To adjust the airflow speed,turn the fan control knob on the left side the control panel to the desired blower of setting. To activate the rear control, move the fan knobon the front control to REAR CNTL. Front Passenger Control To adjust the air temperature, turn the temperature knob on the right side of the control panel. For warmer air, turn the knob toward the red area, and for cooler air, turn the knob toward the blue area. Rear Passenger Control The rear control works just like the front control. It will allow second seat passengers to adjust the controls as To regulate the airflow location, adjust the center knob on the control panel. Turn the knob to the left for floor they desire. 3-5