2010 Chrysler PT Cruiser Owner Manual - Page 187

186 UNDERSTANDING YOUR INSTRUMENT PANEL Window Fogging Vehicle side windows tend to fog on the inside in mild, rainy or humid weather. To clear the windows, use the A/C, Panel and Blower controls. Direct the panel outlets toward the side windows. Do not use recirculate without A/C for long periods, as fogging may occur. Summer Operation Vehicles must be protected with a high-quality antifreeze coolant to provide proper corrosion protection and to raise the boiling point of the coolant for protection against overheating. A 50% concentration is recommended. Interior fogging on the windshield can be quickly re- Outside Air Intake When operating the system, make sure the air intake, moved by using the defrost position. directly in front of the windshield, is free of ice, slush, If the fogging problem persists, clean the inside window snow or other obstructions such as leaves. Leaves colsurfaces. The cause of undue fogging may be dirt collectlected in the air-intake plenum may reduce airflow and ing on the inside surface of the glass. plug the plenum water drains. NOTE: In cold weather, the use of the recirculate The blower air will heat faster in cold weather if you use position will cause windows to fog on the inside because only a low blower speed for the first few minutes of of moisture buildup inside the vehicle. For maximum vehicle operation. defogging, use the Outside Air position.