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Home >> Buick >> 1975 >> Skyhawk Base, Automatic Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Temperature Control >> Testing >> Automatic Climate Control System Functional Test >> "BI-LEVEL" - Dial @ 75

"BI-LEVEL" - Dial @ 75

Air should be delivered from A/C and heater outlets at a reduced blower speed. Only a small portion of air will come out defroster outlet.