2017 GMC Yukon engine problems
33 owner complaints filed with NHTSA name the engine on the 2017 GMC Yukon — 17% of all complaints for this model year.
What owners report
“While traveling at highway speeds, my 2017 GMC Yukon SLE suffered a sudden, catastrophic Active Fuel Management (AFM) valvetrain lifter and camshaft collapse. This caused an immediate and highly dangerous loss of vehicle propulsion in live moving traffic on I-95, creating an extreme physical safety…”
filed Jul 30, 2026
“My engine starting making a knocking/ticking noise out of no where. I was traveling alone on the highway so I stopped to check it. I got to a gas station and google searched it and it came up that the LS 6.2 engine that is in my vehicle was recalled on other models because of this issue. I did have…”
filed Apr 14, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Yukon years
| Year | Reports | Share |
|---|---|---|
| 2026 Yukon | 13 | 62% |
| 2025 Yukon | 31 | 63% |
| 2024 Yukon | 58 | 66% |
| 2023 Yukon | 137 | 65% |
| 2022 Yukon | 95 | 58% |
| 2021 Yukon | 158 | 53% |
| 2020 Yukon | 10 | 29% |
| 2019 Yukon | 27 | 51% |
| 2018 Yukon | 27 | 39% |
| 2016 Yukon | 33 | 12% |
| 2015 Yukon | 32 | 6% |
| 2014 Yukon | 8 | 14% |
Other reported problem areas on the 2017 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.