2026 GMC Yukon engine problems
28 owner complaints filed with NHTSA name the engine on the 2026 GMC Yukon — 76% of all complaints for this model year.
What owners report
“Engine stopped. Would not restart. I had it towed to dealership. They told me the engine is blown. There is only 7700 miles on the truck.”
filed Sep 14, 2026
“Engine failed on this 2026 GMC Yukon Denali.. It had only 18000 miles on it, it failed in middle of hwy in Indiana. Got it towed to dealership.. they haven’t touched it since last 2 days.”
filed Sep 12, 2026
“While traveling at highway speeds of approximately 82 mph in a 2026 GMC Yukon Denali (6.2L V8 L87 engine), the engine experienced a sudden, catastrophic internal failure and completely seized without warning. This resulted in an immediate, total loss of motive power, power steering assist, and power braking assist…”
filed Sep 2, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other Yukon years
| Year | Reports | Share |
|---|---|---|
| 2025 Yukon | 34 | 65% |
| 2024 Yukon | 71 | 69% |
| 2023 Yukon | 153 | 65% |
| 2022 Yukon | 107 | 60% |
| 2021 Yukon | 179 | 55% |
| 2020 Yukon | 12 | 33% |
| 2019 Yukon | 28 | 52% |
| 2018 Yukon | 27 | 39% |
| 2017 Yukon | 33 | 17% |
| 2016 Yukon | 34 | 13% |
| 2015 Yukon | 32 | 6% |
| 2014 Yukon | 8 | 14% |
Other reported problem areas on the 2026 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.