2014 GMC Sierra 1500 engine problems
69 owner complaints filed with NHTSA name the engine on the 2014 GMC Sierra 1500 — 9% of all complaints for this model year.
What owners report
“6.2L Engine has well documneted problem with the valvetrane, I have had to fix it 2 times in 3 months. I have pictures and documents from servicing dealerships. Since my ownership, it has always been dealer-serviced. Unexpected catastrophic engine failure, which happened on a major interstate. GM…”
filed Mar 26, 2026
“The contact owns a 2014 GMC Sierra 1500. The contact stated that while at a stop sign, the vehicle stalled. No warning lights were illuminated. The vehicle was towed back to the residence. A dealer was contacted; however, the vehicle was not diagnosed or repaired. The contact researched and became…”
filed Feb 23, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Engine and Engine CoolingCampaign 14V007000 · Jan 13, 2014
Engine problems in other Sierra 1500 years
| Year | Reports | Share |
|---|---|---|
| 2026 Sierra 1500 | 44 | 64% |
| 2025 Sierra 1500 | 39 | 42% |
| 2024 Sierra 1500 | 152 | 47% |
| 2023 Sierra 1500 | 183 | 44% |
| 2022 Sierra 1500 | 215 | 40% |
| 2021 Sierra 1500 | 275 | 52% |
| 2020 Sierra 1500 | 213 | 48% |
| 2019 Sierra 1500 | 283 | 46% |
| 2018 Sierra 1500 | 63 | 21% |
| 2017 Sierra 1500 | 56 | 16% |
| 2016 Sierra 1500 | 37 | 11% |
| 2015 Sierra 1500 | 83 | 12% |
Other reported problem areas on the 2014 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.