2019 GMC Sierra 1500 power train problems
136 owner complaints filed with NHTSA name the power train on the 2019 GMC Sierra 1500 — 21% of all complaints for this model year.
What owners report
“I had complained to the dealer less than one year after purchase in may of 2019 that there was a shuddering noise and the transmission hesitates and seems to lock up at times. I was told it was "just how the 8-speed transmission operates". It has contnued throughout ownership and now seems to lose…”
filed Sep 8, 2026
“I am the owner of a 2019 GMC Sierra 1500 4WD equipped with the 6.2L L87 V8, VIN [XXX], currently at 177,271 miles. On [ADD DATE] while driving 40-45 mph westbound on [XXX] near XXX in [XXX], in a school zone, the engine suffered sudden catastrophic internal failure with complete loss of propulsion…”
filed Aug 28, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- One of the driveshaft joints may not have been properly welded, causing the driveshaft to…Campaign 20V650000 · Oct 22, 2020
Power Train problems in other Sierra 1500 years
| Year | Reports | Share |
|---|---|---|
| 2026 Sierra 1500 | 25 | 23% |
| 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% |
| 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 2019 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.