2021 GMC Yukon XL engine and engine cooling problems
21 owner complaints filed with NHTSA name the engine and engine cooling on the 2021 GMC Yukon XL — 10% of all complaints for this model year.
What owners report
“The contact owns a 2021 GMC Yukon XL. The contact stated that while driving 55 MPH, several unknown warning lights illuminated, and the check engine warning light started blinking. The contact pulled over and became aware that the vehicle was shaking. The vehicle was turned off and restarted…”
filed Jul 13, 2026
“The contact owns a 2021 GMC Yukon. The vehicle was taken to the local dealer for a routine oil change. While driving, the oil low light illuminated. The vehicle was burning an excessive amount of oil. The local dealer was contacted again, but the vehicle was not diagnosed or repaired. The…”
filed May 29, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Connecting rod and/or crankshaft engine components may have manufacturing defects that…Campaign 25V274000 · Apr 24, 2025
Engine and Engine Cooling problems in other Yukon XL years
| Year | Reports | Share |
|---|---|---|
| 2024 Yukon XL | 6 | 10% |
| 2023 Yukon XL | 11 | 6% |
| 2022 Yukon XL | 13 | 9% |
| 2020 Yukon XL | 3 | 7% |
| 2019 Yukon XL | 5 | 8% |
| 2018 Yukon XL | 1 | 2% |
| 2016 Yukon XL | 2 | 1% |
| 2015 Yukon XL | 1 | 0% |
| 2009 Yukon XL | 1 | 4% |
| 2008 Yukon XL | 1 | 1% |
| 2007 Yukon XL | 1 | 1% |
| 2004 Yukon XL | 9 | 10% |
Other reported problem areas on the 2021 GMC Yukon XL
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.