2021 GMC Yukon XL check engine light reports
21 NHTSA complaints describe persistent or recurring check-engine warnings on the 2021 GMC Yukon XL — roughly 10% of all complaints for this model year.
21
Check engine light reports
10%
share of complaints
81,000 mi
median mileage in check engine light reports (12 with odometer)
Components reported on this vehicle
Check engine light in other Yukon XL years
| 2025 Yukon XL | 5 |
| 2024 Yukon XL | 9 |
| 2023 Yukon XL | 19 |
| 2022 Yukon XL | 17 |
| 2020 Yukon XL | 7 |
| 2019 Yukon XL | 12 |
| 2017 Yukon XL | 8 |
| 2016 Yukon XL | 8 |
| 2015 Yukon XL | 11 |
Other symptoms owners describe on the 2021 GMC Yukon XL
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 XL report before drawing conclusions.