GMC Sierra 2500 HD Repair and Maintenance
A guide to problems, costs, maintenance and repair for your GMC Sierra 2500 HD
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
Our experts translate recalls into plain English
GMC Sierra 2500 HD ProblemsHeating and AC Temperature and Air Delivery Mode Door Actuators May Fail
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.
The fuel pump may fail causing the engine to stall and not restart.
The speedometer or other instrument panel gauge may begin to work erratically at times. Our technicians tell us that the instrument cluster must be sent to a repair facility to correct this fault. The warranty has been extended on some of these units to 7 years or 70,000 miles.
GMC Sierra 2500 HD QuestionsAndroid app is not longer working. Just shows "resyncing data" until i close it out. (1 answer)
Can't get the app to get past "resyncing data"......... uninstalled and reinstalled and still no luck regardless of if i'm on wifi or not. Any suggestions would be appreciated. Online version working fine though!
I just took my truck out after months of sitting idle. There is evidence of rat tearing. My truck now has a warning message to check the 4x4 system and the airbag. I inspected and only found that the rats ate the wires on the coolant level sensor connector. My AC is also not working and makes...
GMC Sierra 2500 HD RecallsPassenger Frontal Air Bag Inflator Ruptures On Deployment
The passenger frontal air bag inflator may rupture on deployment, causing metal fragments to come through the air bag and injure occupants. Dealers will replace the passenger frontal air bag inflator free of charge to resolve the concern.
The brake pedal may loosen and fail to operate properly, due to the loosening of a pivot nut. Dealers will inspect the brake pedal pivot nuts and add thread adhesive, tightening the nut as necessary free of charge to resolve the concern.
In a crash that deploys the passenger front air bag, the inflator of the air bag can rupture, causing metal debris to strike vehicle occupants. Dealers will replace the front passenger air bag inflator free of charge to correct the concern.