2021 GMC Sierra 1500 loss of power reports
41 NHTSA complaints describe sudden power loss, reduced power or limp mode on the 2021 GMC Sierra 1500 — roughly 8% of all complaints for this model year.
41
Loss of power reports
8%
share of complaints
50,000 mi
median reported incident mileage (all complaints)
Components reported on this vehicle
Loss of power in other Sierra 1500 years
| 2026 Sierra 1500 | 7 |
| 2025 Sierra 1500 | 9 |
| 2024 Sierra 1500 | 39 |
| 2023 Sierra 1500 | 43 |
| 2022 Sierra 1500 | 42 |
| 2020 Sierra 1500 | 45 |
| 2019 Sierra 1500 | 48 |
| 2018 Sierra 1500 | 12 |
| 2017 Sierra 1500 | 13 |
| 2016 Sierra 1500 | 9 |
Other symptoms owners describe on the 2021 GMC Sierra 1500
Symptom counts come from keyword analysis of complaint narratives. One complaint can describe several symptoms, and classification is approximate — read the underlying reports on the full 2021 GMC Sierra 1500 report before drawing conclusions.