2009 Dodge Ram 1500 Pickup Owner Manual - Page 305

UNDERSTANDING YOUR INSTRUMENT PANEL 303 Vacation/Storage Any time you store your vehicle or keep it out of service (i.e., vacation) for two weeks or more, run the air conditioning system at idle for about five minutes in fresh air with the blower setting in high. This will ensure adequate system lubrication to minimize the possibility of compressor damage when the system is started again. the windows, select Defrost or Mix mode and increase the front blower speed. Do not use the Recirculation mode without A/C for long periods, as fogging may occur. Outside Air Intake Make sure the air intake, located directly in front of the windshield, is free of obstructions such as leaves. Leaves Window Fogging and Frosting collected in the air intake may reduce airflow, can cause Vehicle windows tend to fog on the inside of the glass in odor, and if they enter the plenum they could plug the mild, rainy and/or humid weather. Windows may frost water drains. In Winter months make sure the air intake on the inside of the glass in very cold weather. To clear is clear of ice, slush and snow. 4