2007 Chrysler PT Cruiser Owner Manual - Page 269

UNDERSTANDING YOUR INSTRUMENT PANEL 269 Circulation Control Use this button to choose between outside air intake or recirculation of the air inside the vehicle. A lamp will illuminate when you are in recirculate mode. Only use the recirculate mode to temporarily block out any outside odors, smoke, or dust and to cool the interior rapidly upon initial start up in very hot or humid weather. NOTE: Continuous use of the recirculate mode may make the inside air stuffy and window fogging may occur. Extended use of this mode is not recommended. In cold or damp weather, the use of the Recirculate position will cause windows to fog on the inside because of moisture build up inside the vehicle. For maximum defogging, select the Outside Air position. NOTE: Recirculation Mode will not operate in floor, mix or defrost modes. 4