1998 Buick Century Owner's Manual - Page 147

Driver's TemperatureKnob The center knob sets the temperature the driver's for outlets. Turn the knob toward red (to the right) for warmer air. Turn it toward blue (to the left) for cooler air. NORM: This setting brings in outside air and sends it through the instrument panel outlets. The air conditioning compressor will run automatically in this setting unless the outside temperatureis below 40°F (4°C). (Even when the compressor is running,you can control thetemperature.) BI-LEV: This setting brings in outside air and directs it through the two ways. Half of the air is directed instrument panel outlets. Mostof the remaining air is directed through the floor ducts a littleto the defrost and and side window vents. The air conditioningcompressor will run automatically in this setting unless the outside C). temperature isbelow 40°F (4" (Even when the compressor is running, you can control the temperature.) VENT This settingbrings in outside air and directs it through the instrumentpanel outlets. Passenger's Temperature Lever The bottom lever adjusts the air temperature the on passenger's side independent of the temperature set by the driver. Slide the lever toward the right to raisethe temperature. Slide the lever toward the left to lower the temperature. Mode Knob The right knob has several settings to controlthe direction of airflow. To access the various modes available, turn the mode button to thedesired mode. HTR: This setting sends most of the air through the ducts near the floor. The rest comes out of the defroster and side window vents. MAX: This setting recirculates much of the air inside your vehicle and sends itthrough the instrument panel outlets. The air conditioning compressor will run automatically in this settingunless the outside temperature is below 40°F (4°C). (Even when the compressor is running,you can control the temperature.) BLEND: This setting allows half of the air to go to the floor ductsand half to the defroster and side window vents. The air conditioning compressor will run automatically in this setting unless the outside temperature is below 40°F (4°C). (Even when the compressor is running,you can control the temperature.) 3-5