2021 GMC Yukon power train problems
48 owner complaints filed with NHTSA name the power train on the 2021 GMC Yukon — 16% of all complaints for this model year.
What owners report
“The contact owns a 2021 GMC Yukon. The contact stated that while driving at undisclosed speeds, the transmission was shifting hard, with severe vibrations and shuddering. The vehicle was taken to the local mechanic, who confirmed the failure and advised the contact to take the vehicle to the local…”
filed Jul 29, 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.
Related recalls
- Transmission control valve may fail and cause the rear wheels to lock-upCampaign 24V797000 · Oct 24, 2024
- Rear wheel driveshaft assemblies may have internal components that were not heat-treated…Campaign 22V036000 · Jan 27, 2022
Power Train problems in other Yukon years
| Year | Reports | Share |
|---|---|---|
| 2026 Yukon | 7 | 33% |
| 2025 Yukon | 6 | 12% |
| 2024 Yukon | 12 | 14% |
| 2023 Yukon | 36 | 17% |
| 2022 Yukon | 26 | 16% |
| 2020 Yukon | 14 | 41% |
| 2019 Yukon | 12 | 23% |
| 2018 Yukon | 18 | 26% |
| 2017 Yukon | 48 | 24% |
| 2016 Yukon | 34 | 13% |
| 2015 Yukon | 46 | 9% |
| 2014 Yukon | 3 | 5% |
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.