2021 GMC Yukon check engine light reports
39 NHTSA complaints describe persistent or recurring check-engine warnings on the 2021 GMC Yukon — roughly 13% of all complaints for this model year.
39
Check engine light reports
13%
share of complaints
61,876 mi
median mileage in check engine light reports (14 with odometer)
Components reported on this vehicle
Check engine light in other Yukon years
| 2025 Yukon | 7 |
| 2024 Yukon | 6 |
| 2023 Yukon | 16 |
| 2022 Yukon | 9 |
| 2020 Yukon | 7 |
| 2019 Yukon | 8 |
| 2018 Yukon | 6 |
| 2017 Yukon | 6 |
| 2016 Yukon | 12 |
| 2015 Yukon | 7 |
Other symptoms owners describe on the 2021 GMC Yukon
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 Yukon report before drawing conclusions.