1995 GMC Safari Owner's Manual - Page 119

Temperature Lever -This lever is below the fan lever and selects the temperature of the air flowing into your vehicle. Move the lever up for warmer air. Move the lever down for coolerair. Function Lever -This lever is below the fan lever and can be moved to seven different functions. DEFROST -The setting with the defrost symbol operates the defroster. Most of the air comes out near the windshield, with some going to the floor vents and side window defrost vents. Use this when you get fog or ice on the windshield. The A/C compressor may operate in this setting to dehumidify the air. BLEND -With this setting, the heated outside air comes out both the heater vents and defroster vents, with some air coming through the side window vents. Adjust the temperature lever for warmer or cooler air. This setting is useful for cold weather witha large number of passengers or very humid conditions to help keep thewindshield clear. The AIC compressor may operate in this setting to dehumidify the air. HTR (Heater) - Most of the air comes out near the floor. The rest comes out from the defroster vents under the windshield and at the front side windows. This is best for cold weather. VENT - The air comes out at the vents on yourinstrument panel. The air conditioner will not run. Adjust the temperature lever for warmer or cooler air. BI-LEV A/C -With this, outside air comes out through the heater floor vent and the instrument panel vents. If you move your temperature control lever between cold and hot, coolerair will come outof the upper vents while warmer air comes out of the floor vent. This setting is useful in cool weather with brightsunlight. NORM A/C - This setting cools the outside air. If you first used MAX A/C, use NORMA/C as soon as the vehicle has cooleddown, so outside air will be going through your vehicle. MAX A/C -This cools the air the fastest. Move the other lever all the way to Cold. MAX A/C lets in only a little air from outside. You can use the MAX A/C at first when it's really hot outside and you need tocool off quickly. When the air conditioning, defrost or BLEND is on, you may notice a slight increase or decrease in engine speed, due to compressor operation.