1999 Cadillac DeVille Owner's Manual - Page 158

yellowblue Comfort Controls This section tells you how to make your air system work for you. Your Electronic Climate Control (ECC) system uses ozone-friendly R-134a refrigerant. With the ECC system, you can control the heating, cooling and ventilation in your vehicle. Your vehicle also has a flow-through ventilation system described later in this section. Digital Cluster Climate Control Panel (DeVille and DeVille d'Elegance Only) Fan Button The button with the fan symbol adjusts the fan speed. Press the up arrow to increase fan speed and the down arrow to decrease fan speed. 3-2