1996 Pontiac Firebird Owner's Manual - Page 139
1996 Pontiac Firebird Manual
Page 139 highlights
Air Control Knob OFF: The system is off. 3 VENE Air flows through the upper air vents. BI-LEVEL: Air is directed through the upper air vents and the heaterducts. 1 2 HEATER: This setting directs most of the air through the heater ducts and some of the air through the windshield defroster vents. 1 2 defroster vents and the heater ducts. 9 BLEND: Air is directed through the windshield DEFROST: This setting directs most of the air through the windshield defroster vents and some of the air through the heater ducts. The air conditioning system uses the same controls as the heating system, except that the air control knob ...has two extra settings, described below. _ . 7 MAX: Provides maximum cooling or quickcool-down on very hot days. This setting recirculates most of the air inside your vehicle. If it is used for long periods of time9 the air may become dry.This setting directs airthrough the upper air vents. N C : Use for normal coolingon hot days. This setting cools outside air and directs it through the upper air vents.