2012 GMC Sierra 2500 problems & reliability
30 owner complaints filed with NHTSA for the 2012 GMC Sierra 2500, alongside 3 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
2 complaints report injuries (5 injured, 1 deaths reported).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Air Bags | 8 | 27% |
| Unknown OR Other | 7 | 23% |
| Fuel/propulsion System | 5 | 17% |
| Electrical System | 4 | 13% |
| Power Train | 4 | 13% |
| Structure | 4 | 13% |
| Engine | 3 | 10% |
| Suspension | 1 | 3% |
| Tires | 1 | 3% |
| Vehicle Speed Control | 1 | 3% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 68,500 miles (middle 50% between 38,250 and 96,848 miles), based on 20 complaints that included mileage.
Complaints by incident year
What owners report
“I'm following up on tracking number 11642264 that was submitted on Feb 12th for my 2012 GMC Sierra 2500 HD ignition lock issue that fits the profile for a current recall . I haven't heard anything and am checking on the current status. Thank you. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT…”
Unknown OR Other · filed Feb 24, 2025
“My 2012 GMC Sierra falls under recall number 14V827000 Ignition lock activator by year, make and model, but not by the VIN number. I called the GMC 800 number and they indicated that the NHTSA issues the recalls not the manufacturer. I then called the NHTSA and they indicated that the manufacturer issues the recalls…”
Unknown OR Other · filed Feb 12, 2025
“The contact owns a 2012 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 21V051000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer and an unknown dealer were contacted. The contact stated that the manufacturer had exceeded a reasonable amount of…”
Air Bags · filed Nov 12, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Desiccated Air Bag Inflator Rupture
Engineering Analysis EA21002 · opened Sep 17, 2021 · open
Technical service bulletins
1,722 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2012 GMC Sierra 2500. The 10 most recent:
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
PIT3271Q · Service Bulletin/Repair Instructions · issued Apr 1, 2026
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
PIP6104 · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902V · Service Bulletin/Repair Instructions · issued Mar 9, 2026
This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Tire pressures being set to the "Tire…
PIT4506J · Service Bulletin/Repair Instructions · issued Feb 16, 2026
This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier…
PIT6400A · Service Bulletin/Repair Instructions · issued Jan 16, 2026
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902U · Service Bulletin/Repair Instructions · issued Jan 8, 2026
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions…
PIT5214G · Service Bulletin/Repair Instructions · issued Nov 20, 2025
New Vehicle Monitoring Programs Section in IVH
13598 · Other · issued Sep 9, 2025
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIP4902T · Service Bulletin/Repair Instructions · issued Aug 14, 2025
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may…
PIC5650M · Service Bulletin/Repair Instructions · issued Aug 7, 2025
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2012 GMC Sierra 2500 has 3 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2012 GMC Sierra 2500?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 68,500 miles — budget accordingly if the car is approaching that mileage.