2009 Jeep Grand Cherokee Owner's Manual - Page 268

266 UNDERSTANDING YOUR INSTRUMENT PANEL respectively. With the temperature setting in these positions, the system does not attempt automatic comfort control. Air Conditioning The air conditioning in this system is automatic. Pressing this button while in AUTO mode will cause the LED to flash three times and remain off. This indicates that the system is in AUTO and requesting the air conditioning is not necessary. Recirculation The system will automatically control recirculation. However, pressing this button will temporarily put the system in "Recirculation" mode. This can be used when outside conditions such as smoke, odors, dust, or high humidity are present. This will cause the LED to illuminate. NOTE: • The surface of the climate control panel, and the top center of the instrument panel should be kept free of debris due to the climate control sensor's location. Mud on the windshield may also cause poor operation of this system. • To provide you with maximum comfort in the automatic mode, during cold start-ups the blower fan will remain off until the engine warms up. However, the fan will engage immediately if the defrost mode is selected or if you manually select a blower speed. • Under certain conditions (after the vehicle is turned off) the climate control system may recalibrate and a noise may be heard for 20 seconds. This is part of normal operation.