2021 GMC Sierra 1500 clunking / rattling reports
25 NHTSA complaints describe clunks, knocks and rattles on the 2021 GMC Sierra 1500 — roughly 5% of all complaints for this model year.
25
Clunking / rattling reports
5%
share of complaints
50,000 mi
median mileage in clunking / rattling reports (11 with odometer)
Components reported on this vehicle
Clunking / rattling in other Sierra 1500 years
| 2025 Sierra 1500 | 7 |
| 2024 Sierra 1500 | 9 |
| 2023 Sierra 1500 | 15 |
| 2022 Sierra 1500 | 16 |
| 2020 Sierra 1500 | 23 |
| 2018 Sierra 1500 | 8 |
| 2017 Sierra 1500 | 12 |
| 2016 Sierra 1500 | 9 |
| 2014 Sierra 1500 | 14 |
| 2011 Sierra 1500 | 5 |
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.