2024 GMC Sierra 2500 power train problems
23 owner complaints filed with NHTSA name the power train on the 2024 GMC Sierra 2500 — 24% of all complaints for this model year.
What owners report
“While towing my fifth-wheel trailer, I was descending a hill (I had my tow/haul switch engaged) when I noticed an issue with my vehicle. Upon reaching the bottom of the hill and beginning to decelerate, when applying gas to continue up the hill the vehicle shuddered noticeably. A warning light…”
filed Jul 23, 2026
“I was merging onto the highway in my 2024 GMC Sierra 2500HD AT4X equipped with the 6.6L Duramax engine at about 50mph when the gauge cluster emitted a “Reduced Acceleration Drive With Care” message followed by a check engine light. The check engine light presented indicated a “P0747” and “P0700”…”
filed Jun 7, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Sierra 2500 years
| Year | Reports | Share |
|---|---|---|
| 2025 Sierra 2500 | 3 | 12% |
| 2023 Sierra 2500 | 20 | 67% |
| 2022 Sierra 2500 | 5 | 12% |
| 2021 Sierra 2500 | 12 | 24% |
| 2020 Sierra 2500 | 22 | 30% |
| 2019 Sierra 2500 | 2 | 6% |
| 2018 Sierra 2500 | 3 | 9% |
| 2017 Sierra 2500 | 6 | 16% |
| 2016 Sierra 2500 | 1 | 2% |
| 2015 Sierra 2500 | 8 | 9% |
| 2014 Sierra 2500 | 3 | 10% |
| 2013 Sierra 2500 | 5 | 11% |
Other reported problem areas on the 2024 GMC Sierra 2500
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.