2026 GMC Sierra 1500 power train problems
25 owner complaints filed with NHTSA name the power train on the 2026 GMC Sierra 1500 — 23% of all complaints for this model year.
What owners report
“The contact owns a 2026 GMC Sierra 1500. The contact stated that while hauling a trailer and making a left turn at 5 MPH, at a busy intersection, the message "Shift to Park" displayed, and the vehicle lost motive power. The vehicle was restarted. The contact stated that the failure was persistent…”
filed Sep 16, 2026
“The contact owned a 2026 GMC Sierra 1500. The contact stated that while slowly driving up a slightly inclined driveway and making a left turn, the engine shut off. The contact stated that either the parking brake activated, or the vehicle suddenly decelerated. The contact stated that the failure…”
filed Sep 4, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- A component missing from the drivetrain transfer case may cause the front and/or rear…Campaign 26V289000 · May 7, 2026
Power Train problems in other Sierra 1500 years
| Year | Reports | Share |
|---|---|---|
| 2025 Sierra 1500 | 24 | 21% |
| 2024 Sierra 1500 | 68 | 19% |
| 2023 Sierra 1500 | 91 | 19% |
| 2022 Sierra 1500 | 108 | 19% |
| 2021 Sierra 1500 | 134 | 24% |
| 2020 Sierra 1500 | 96 | 21% |
| 2019 Sierra 1500 | 136 | 21% |
| 2018 Sierra 1500 | 128 | 43% |
| 2017 Sierra 1500 | 117 | 33% |
| 2016 Sierra 1500 | 83 | 24% |
| 2015 Sierra 1500 | 97 | 14% |
| 2014 Sierra 1500 | 69 | 9% |
Other reported problem areas on the 2026 GMC Sierra 1500
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.