Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail: GMC Sierra 2500 Heating & Air Conditioning

Problem overview

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.

14 people reported this problem

6 comments

Schedule Repair

GMC Sierra 2500 vehicles with this problem

6 model years affected

Average mileage: 118,265 miles

(45,000 - 216,000)

Repairs related to this problem

AC Diagnosis

Need a diagnosis? Trust our GMC experts.

RepairPal Certified shops offer expert diagnosis and repair services for your GMC Sierra 2500, ensuring transparency with upfront pricing and a minimum warranty of 12 months or 12,000 miles on all repairs and services.

Search for another problem

RepairPal ™Car Genius

Ask our experts about your GMC.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail on GMC Sierra 2500