2012 GMC Sierra Transmission and drivetrain Problems
- Complaints
- 2about this part
- Share
- 7%of 29 total for the year
- Median mileage
- 54,586miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the transmission and drivetrain of the 2012 GMC Sierra, 7% of the 29 complaints for this model year. Where a mileage was given, the median is 54,586 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.
“I purchased a 2012 Gmc Sierra denali from stahl motors in monterey, ca in february of 2015. They are not willing to pay for the damages to my truck even though they sold me a completely dangerous vehicle, which I will explain. My truck didn't feel right as I was driving so I decided to take it to a shop to get looked at. There is a long list of things that is wrong with the vehicle, but I will mention just the main ones. The truck was sold to me without the rear brakes hooked up. The brake lines for the rear calipers were capped off by the rear differential. …”
NHTSA complaint #10760875, filed 2015-09, 43,449 miles“While driving at normal highway speed, truck shut off except for the lights. Lost powers steering, brakes etc. Once I got the truck pulled over and stopped, attempted to restart. Was unable to do so until the 4th attempt during a 5 minutes time span. Once started, appeared to be running fine except for the mil on the dashboard which was lit.”
NHTSA complaint #10854466, filed 2016-04, 65,722 milesRelated service bulletins
- 10112292Jan 26, 2016This preliminary informational bulletin provides a procedure to reset the transmission adapts and test drive in additon to a transmission control module reprogram to correct a…
- 10075716Nov 6, 2015Some customers may comment that the vehicle has reduced acceleration at low speed and/or transmission is slipping from a launch. Technicians may find DTC P0751 set or stored in…
- 10114597Jul 9, 2015This Preliminary Information communication provides information to the technician of an engine power reduced message on the driver information center after performing the Canada…
- 10058756Jun 1, 2015Gmc/chevrolet: tsb contains an owner's notification letter. Select document search button below. When shifting from first gear to second gear, harsh shifting is experience and…
- 10112129Jul 25, 2014This Preliminary Information communication provides information to the technician with the steps on diagnosing and repairing vehicles that may have unwanted grade braking…
- 10052066Jul 1, 2014General motors: owners may complain about unwanted braking, or reduced engine power. There may also be some up and down shifts with the transmission. *kb updated 10/15/14. *pe…
- 10112079May 21, 2014This Preliminary Information communication advises the technician that the Auxiliary Transmission Fluid Pump Control Module and Auxiliary Transmission Fluid Pump placed on parts…
- 10112060May 7, 2014This Preliminary Information communication advises the technician that the 2ML70 Transmission Assembly will be placed on restriction through the General Motors Technical…
- 10112055May 6, 2014This Preliminary Information communication provides information to the technician with the steps on diagnosing and repairing vehicles that may have unwanted grade braking…
- 10055497Mar 1, 2014Chevrolet/gmc: at time of production, some vehicles were manufactured with an incorrect transmission thrust bearing, that can result in noise and poor operation of transmission…
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2017 | 23 | 38% |
| 2015 | 6 | 11% |
| 2014 | 10 | 10% |
| 2013 | 5 | 13% |
| 2012 | 2 | 7% |
| 2011 | 6 | 14% |
| 2010 | 1 | 3% |
| 2008 | 2 | 3% |
| 2007 | 4 | 7% |
| 2006 | 2 | 4% |
| 2005 | 11 | 9% |
| 2004 | 18 | 10% |
| 2003 | 29 | 14% |
| 2002 | 18 | 7% |
| 2001 | 14 | 5% |
| 2000 | 26 | 6% |
| 1999 | 37 | 6% |
| 1998 | 15 | 8% |
| 1997 | 28 | 12% |
| 1996 | 24 | 10% |
| 1995 | 12 | 5% |
| 1994 | 6 | 3% |
| 1993 | 10 | 14% |
| 1992 | 2 | 7% |
| 1990 | 2 | 11% |
| 1988 | 1 | 17% |
Other parts of the 2012 GMC Sierra
7 complaintsBody and structure
6 complaintsEngine
5 complaintsAir bags
4 complaintsBrakes
4 complaintsOther or unknown
3 complaintsSteering
3 complaintsElectronic stability control
2 complaintsSuspension
2 complaintsVehicle speed control
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsEngine cooling
1 complaints
← All problems reported for the 2012 GMC Sierra
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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