2009 GMC Yukon XL 1500 Problem Reports

Most Reported 2009 GMC Yukon XL 1500 Problem Reports

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One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.