GMC Yukon Denali Problem Report
GMC Yukon Denali Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator
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.
only can get fresh air, due to actuator not working - Visitor
My heater cools when I want heat and my A/C heats when I want cooling. I have had the motor doors replaced once before at 77,000. It not is occurring again. - Visitor
hate this, a really annoying problem in a really expensive vehicle - Visitor
electrical problems- door locks, ac/heater, lights, all going out and replace.. reapeat - jdbyrd24
AC blows cool on passenger and rear but not drivers side.
The temp. control actuator defaults to cold and stays there. This is true in automatic mode, us...
A rattling noise may develop from the AC belt tensioner. This can be caused by an internal faul...
The power door lock actuators may become slow to operate or stop working completely and require...
just recently my denali started blowing hot air out of the front vents,while the rear was still...