2012 GMC Sierra 2500 Transmission and drivetrain Problems
- Complaints
- 4about this part
- Share
- 13%of 31 total for the year
- Median mileage
- 126,696miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the transmission and drivetrain of the 2012 GMC Sierra 2500, 13% of the 31 complaints for this model year. Where a mileage was given, the median is 126,696 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Driving on the expressway around 60 mph when the truck went into limp mode slowing me down to 40 and then would not shift gears Tcm went out gm told me that there is a big problem”
NHTSA complaint #11542551, filed 2023-09, 126,393 milesRelated service bulletins
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11011205Oct 28, 2024This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
- 11009756Sep 17, 2024This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and…
- 11009088Sep 16, 2024This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be…
- 11006421Jul 24, 2024GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or…
- 11005311Jul 9, 2024This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
- 11001321May 16, 2024This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
- 11000119Apr 26, 2024This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 1 | 7% |
| 2025 | 3 | 11% |
| 2024 | 27 | 25% |
| 2023 | 20 | 61% |
| 2022 | 7 | 16% |
| 2021 | 13 | 25% |
| 2020 | 25 | 31% |
| 2019 | 2 | 6% |
| 2018 | 3 | 9% |
| 2017 | 6 | 16% |
| 2016 | 1 | 2% |
| 2015 | 8 | 9% |
| 2014 | 3 | 10% |
| 2013 | 5 | 11% |
| 2012 | 4 | 13% |
| 2011 | 6 | 10% |
| 2008 | 3 | 5% |
| 2007 | 2 | 2% |
| 2006 | 12 | 18% |
| 2005 | 7 | 6% |
| 2004 | 9 | 6% |
| 2003 | 13 | 8% |
| 2002 | 14 | 10% |
| 2001 | 6 | 4% |
| 2000 | 1 | 2% |
| 1999 | 1 | 3% |
| 1998 | 3 | 20% |
Other parts of the 2012 GMC Sierra 2500
8 complaintsOther or unknown
7 complaintsFuel system
5 complaintsElectrical system
4 complaintsBody and structure
4 complaintsEngine
3 complaintsTires
2 complaintsSuspension
1 complaintsVehicle speed control
1 complaintsWheels
1 complaints
← All problems reported for the 2012 GMC Sierra 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology