2022 GMC Yukon XL engine problems

“# Formal NHTSA Safety Complaint **2022 GMC Yukon — Catastrophic 6.2L Engine Failure, Sudden Loss of Power at Highway Speed, and Inadequate GM Response** I am filing this formal safety complaint regarding the catastrophic failure of the 6.2L V8 engine in my 2022 GMC Yukon, which has approximately 59,000 miles. The vehicle is associated with GM's 6.2L engine safety recall N252494000 (NHTSA 25V274). ### Sudden Engine Failure at 75 MPH — Serious Safety Risk While traveling approximately 75 miles per hour on the highway, our GMC Yukon experienced a sudden and complete engine shutdown **without any advance warning**. There were no indications that the engine was about to fail. The vehicle unexpectedly lost engine power while we were traveling at highway speed, creating an extremely dangerous situation for everyone in the vehicle and potentially for surrounding motorists. **Our family, including three young children with special needs, was placed at serious risk because of this sudden and unexpected engine failure.** The incident occurred approximately 70 miles west of [XXX], leaving us stranded in approximately 90-degree weather. We were also towing a trailer…”

“Sudden catastrophic engine failure during operation. Was climbing a hill and suddenly started losing power, almost instantly a written warning popped up on my screen saying engine oil over temp, idle engine. We started pulling off the road, engine started rattling, then shut off before we could come to a complete stop. At this point i was checking the gauges and all were at normal operating temperatures, but as I sat there watching the temperature gauge began to rise rapidly with the engine off. The engine was seized and had to be towed.”

“On 9/11/26 the Yukon XL flashed a check engine light and message stated to service within 7 business days. 30 seconds later the power shut off and barely coasted to the side of the highway. Engine would turn over but not start. Could not shift into neutral b/c wouldn’t start. Error message: ECM - Engine and Transmission SystemP102AThe Engine and Transmission System is not performing as expected. An issue has been detected in the Fuel Management System used to maintain, control and monitor fuel consumption. If the check engine light is flashing, a misfire condition has been detected. A misfire increases vehicle emissions and could damage the emission control system on the vehicle. Please reduce vehicle speed, avoid hard accelerations, avoid steep uphill grades, and reduce any cargo loads such as a trailer.Service within 7 days Had vehicle towed to dealership. Was repaired and picked up on 9/25/26. Paid for new battery over $400.00 On 9/29/2026 Yukon XL would not shift into reverse. The error message on the car stated. TCM - Engine and Transmission SystemP2718. Odometer: 76117 Miles”

“On XXX, I was driving my 2022 GMC Yukon XL Denali equipped with the 6.2L L87 V8 engine, with my [XXX] stepson as a passenger, when the engine malfunctioned and stalled, leaving the vehicle disabled in traffic. The vehicle registered diagnostic trouble code P0016 (Crankshaft Position–Camshaft Position Correlation, Bank 1 Sensor A). Prior to this incident, the vehicle had undergone GM's L87 Engine Loss of Propulsion Safety Recall 25V-274 (GM Campaign N252494000). The vehicle passed the required engine inspection and was cleared to receive the prescribed oil viscosity change from 0W-20 to 0W-40. Under GM's recall service procedure, vehicles displaying P0016 during the inspection were required to be quarantined rather than proceeding with the oil-change remedy. Therefore, the completion of the prescribed remedy indicates that P0016 was not identified during the earlier recall screening. Despite passing GM's engine inspection and receiving the recall remedy, the engine subsequently experienced a failure involving P0016 and a complete loss of propulsion. This raises significant concerns about whether GM's inspection procedures and oil viscosity remedy adequately…”

“The vehicle was being driven from work to home on the interstate, when a loud ticking/knocking noise was heard while exiting the interstate. The motor lost power when trying to accelerate while pulling into our driveway. It was noticed that the "Service Transmission" light came on as well. It was towed to the Chevrolet dealership in Bardstown, KY where they did diagnostic testing and stated that the motor had "locked up" and will have to be replaced. The service person at the Chevrolet dealership stated that the transmission could have been affected also because the service transmission light was on as well. We are lucky the loss of power and the engine locking up did not occur on the interstate where multiple people could have been injured. The ticking/knocking and the complete engine locking up occurred within a 5 minute time span. The check engine light and service transmission lights did not come on until the vehicle coasted into our driveway. The vehicle had participated in the recall of putting a higher viscosity oil in by the Chevrolet dealership.”

“I own a 2022 yukon the motor was recalled and was replaced at approximately 30,000 miles. Gm had my vehicle for over a month in 2025. Now I have 36,000 miles on my yukon and my 2nd brand new engine has exploded and is currently being replace.”