Engine seizure and failure requiring replacement
ENGINE
9 NHTSA complaints · 2025-04 → 2026-08
“On May 6, 2026 while driving on the interstate, the vehicle automatically shifted into Neutral, and lost all engine power. The vehicle would not shift back into drive or even 4x4 neutral to be towed. The vehicle was towed to Sam Boswell GMC in Mt Dora, FL”
“DuraMAX 3.0L LZ0 engine with defective crankshaft thrust bearing caused catastrophic engine failure requiring engine replacement. The event occurred at about 1,000 miles. There is a GM TSB that addresses this issue”
“Reduced engine power warning light came on at approximately 7600 miles on our new 2025 Yukon xl. Dealer inspected and ultimately decided the engine needs to be replaced due to crankshaft end play out of spec”