GMC 3500 Pickup Problem Report

GMC 3500 Pickup Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator

(5 reports)

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.

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