Engine failure requiring full replacement
ENGINE
28 NHTSA complaints Β· 2025-05 β 2026-05
βThe engine has seized and was replacedβ
βThe 3.0L diesel motor failed around 5700 miles. The thrust bearing failed and the engine and the turbo needed to be replaced.β
βOn October 21, 2025, with only 4,197 miles on my Yukon, the vehicle suddenly died while in drive in a parking lot. The vehicle would not restart or shift into neutral. I contacted OnStar, who arranged for the vehicle to be towed to the nearest GMC dealership. Since that date,β¦β
βAt approximately 500 miles, the vehicle started to shutter and misfire at highway speeds (60-70 mph). The check-engine -light began to flash at the same time. We have a video and this happened 3 times before taking it to the dealer. This is a safety concern because it began toβ¦β

