GMC Sierra 2500 HD Repair and Maintenance
A guide to problems, costs, maintenance and repair for your GMC Sierra 2500 HD
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GMC Sierra 2500 HD ProblemsService 4WD Message May be Displayed
The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code(s) stored in the transfer case control module will be of assistance in determining the exact fault causing the message to be displayed.
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.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
GMC Sierra 2500 HD QuestionsAre the spark plug wires all the same? The new and old ones all look the same (1 answer)
I'm trying to change my plug wires and want to make sure they are put on correctly.
Have to turn radio off for 2 to 3 minutes then back on for the scanning to stop
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!
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.