2026 GMC Sierra 2500 Transmission and drivetrain Problems
- Complaints
- 1about this part
- Share
- 7%of 14 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 1 complaints about the transmission and drivetrain of the 2026 GMC Sierra 2500, 7% of the 14 complaints for this model year. 1 of these say a crash was involved, according to the filers.
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.
“Aug 14th, 9:49 pm - Vehicle was placed in park and driver got out. A few seconds later the vehicle started moving forward under its own power towards the driver who was now infront of vehicle walking foward away from vehicle. Passenger hopped over the driver seat to press on brake pedal to stop vehicle. At same time, driver turned around and noticed vehicle moving towards him. Passenger was able to stop vehicle but not before it ran off the driveway and into and over a recreational firepit area. Driver was on opposite side of this. …”
NHTSA complaint #11760712, filed 2026-08Related service bulletins
- 11037330Sep 17, 2026Certain vehicles may have received transmission mounting bolts that do not meet expected hardness specifications. Loose or failed bolts may result in hard shifting from the…
- 11033783Jun 10, 2026Certain vehicles may have a condition in which the bolts for the transmission control valve body may be loose or missing. Dealers will retorque or replace the suspect valve body…
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 2026 GMC Sierra 2500
5 complaintsSteering
4 complaintsBrakes
2 complaintsTires
2 complaintsEngine
1 complaintsForward collision avoidance
1 complaintsFuel system
1 complaintsOther or unknown
1 complaintsSeats
1 complaintsSuspension
1 complaints
← All problems reported for the 2026 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