1993 Chevrolet Suburban Owner's Manual - Page 155

Comfort Controls & Audio Systems Rear Air Conditioning and Rear Heater Front Control Rear Control K2479 I f your vehicle has a rear air conditioning and rear heater system combination,controlsareprovidedtoregulatethetemperature,locationand speed oftheairflow. To adjusttheairtemperature,turnthetemperatureknobontherightside the controlpanel.Forwarmerairturntheknobtotheright(red)side,and for coolerair,turntheknobtotheleft(blue)side. of To regulatetheairflowlocation,adjustthecenterknobonthecontrolpanel, Turn the knob toward the left for floor vent air flow or toward the right for headliner vent air flow. Generally, the upper vents are used for air conditioningandthefloorventsforheating:however,thecontrolknob of airflow. set to allow any desired blend To adjusttheairflowspeed,turnthefancontrolknobontheleftside controlpaneltothedesiredblowersetting. To activatetherearcontrol,movethefanknob CNTL. This will allow second seat passengers desi re. maybe of the on thefrontcontrolto REAR to adjust the controls as they 3-10