2021 GMC Yukon fuel/propulsion system problems
43 owner complaints filed with NHTSA name the fuel/propulsion system on the 2021 GMC Yukon — 13% of all complaints for this model year.
What owners report
“Took car in to have it checked for recall on engine and have oil changed to new standards with WD40 was told the engine and car was fine “just use this new oil” A MONTH later was driving and engine would not shift come to find out our transmission was going out it was replaced thanks to our…”
filed Aug 29, 2026
“1. What component or system failed or malfunctioned. The Fuel Pump Module failed unexpectedly while the vehicle was being driven. Failure caused the engine to stall, resulting in a complete loss of power and mobility. Unsure if part is available for inspection. 2021 GMC Yukon have a recall…”
filed Aug 26, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Yukon years
| Year | Reports | Share |
|---|---|---|
| 2026 Yukon | 1 | 3% |
| 2025 Yukon | 3 | 6% |
| 2024 Yukon | 6 | 6% |
| 2023 Yukon | 15 | 6% |
| 2022 Yukon | 11 | 6% |
| 2020 Yukon | 1 | 3% |
| 2019 Yukon | 1 | 2% |
| 2018 Yukon | 2 | 3% |
| 2017 Yukon | 10 | 5% |
| 2016 Yukon | 7 | 3% |
| 2015 Yukon | 11 | 2% |
| 2013 Yukon | 2 | 2% |
Other reported problem areas on the 2021 GMC Yukon
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.