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.
Problems for specific GMC Yukon XL Denali years:
Car problem reports
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Most reported 2007 GMC Yukon XL Denali problems
The steering wheel position sensor may fail, resulting in the service stability message being displayed.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The keyless entry system may stop working. Our technicians tell us the key fobs and keyless entry receiver may need to be replaced to correct this fault.