2021 GMC Yukon fuel/propulsion system problems
40 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
“Seems to be not accelerating properly as if the propulsion is not there. Also, when switching gears it seems as if it is slipping or missing to keep up with the propulsion. Lastly, riding with windows down on the highway alongside the concrete median, I can hear like metal clanking or rubbing…”
filed Jul 14, 2026
“Engine overheated and performed an emergency shutdown while driving through Atlanta on my way to vacation with my family. We lost propulsion and had to cross 5 lanes of traffic to find a shoulder to pull over to. The engine shut down and we were left stranded 500 miles from home with our 3 children…”
filed Jun 25, 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 | 5% |
| 2025 Yukon | 2 | 4% |
| 2024 Yukon | 5 | 6% |
| 2023 Yukon | 11 | 5% |
| 2022 Yukon | 9 | 5% |
| 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.