2007 Cadillac DTS Owner's Manual - Page 204

Climate Controls Dual Climate Control System With this system you can control the heating, cooling, and ventilation for the vehicle. To avoid window fogging on rainy and humid days at temperatures above freezing, run the air conditioning compressor. Also, it is best to avoid the use of recirculation mode except when maximum air conditioning performance is needed for a short amount of time to avoid exterior odors and fogging. Dual Climate Control System for Vehicles with Rear Climate Control Automatic Operation AUTO 9 (Automatic Fan): When this position is selected on the fan control, the system will adjust the fan speed. If the OnStar® system is activated when this position is selected, the climate control fan speed will lower. AUTO (Automatic Mode): 1. Turn the fan control to the AUTO position. 2. Turn the mode control to the AUTO position. Dual Climate Control System 204