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 ProblemsImproper 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.
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.
The daytime running lights are prone to burning out. Our technicians tell us that the light sockets may show signs of heat damage but usually are OK. Always be sure to use the correct replacement bulb for the best life expectancy. The new bulb recommendation for 2001-2003 models is #4114K (trade number).
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.