2022 GMC Yukon XL: sudden loss of power

Filed Oct 30, 2026 · Engine · CO

# Formal the federal safety agency 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 (the federal safety agency 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 containing essential medical equipment required by one of our children with special needs. The sudden engine failure created an immediate highway safety hazard, followed by the additional concern of being stranded in extreme heat with medically vulnerable children and essential medical equipment that we could not transport with our disabled vehicle. ### GM's Failure to Assist With Medically Necessary Equipment Following the breakdown, we contacted General Motors for assistance. Despite explaining that our trailer contained medical equipment necessary for one of our children's care, GM would not assist us with moving the trailer. I find this response extremely concerning. Our family was already dealing with a frightening and potentially dangerous situation caused by the sudden failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA

Filed Oct 19, 2026 · Engine · AZ

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.

Filed Oct 1, 2026 · Engine, Transmission · KY

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.

Filed Aug 26, 2026 · Engine · FL

While driving in passing lane on interstate highway at approximately 65 mph engine lost power. Dashboard warning "vehicle in neutral" message appeared. "Press start" message appeared. Tried to start the engine but did not start. Slight downhill while on highway and had to make it to right shoulder since no shoulder on left side of highway. Glided across 2 lanes to right lane and luckily an exit came up while still gliding slightly downhill. Exited ramp and got off highway to an empty parking lot. Put vehicle in Park. Since engine failed, power steering was normal as was all electrical components. Once stopped, vehicle was not able to be shifted into Neutral. Message " unable to shift to Neutral under conditions " appeared. Vehicle had to be towed with rear wheels on dollies since it was stuck in Park. Was very lucky to get vehicle across lanes of traffic and off highway to a safe location. Had vehicle towed to nearest GMC dealership where it was diagnosed as internal engine failure covered under recall for this particular engine. (6.2 liter).

Filed Aug 21, 2026 · Engine · OH

No warning the car made a loud clunk that shook the car. The engine began a severe knock with almost compete loss of power. The dealer confirmed the entire engine had to be replaced. I was told my car passed the PICO test recall and only required an oil viscosity change. There is something very wrong here. These engines are not right. I have handicapped twins and have zero confidence it won't leave my family stranded.

Filed Jul 14, 2026 · Engine, Fuel system · MD

The engine in my 2022 GMC Yukon XL equipped with the 6.2L L87 V8 experienced a sudden loss of power while traveling at interstate speed. The vehicle had previously received the GM L87 engine recall remedy. Despite the recall being completed, the engine failed, leaving me and my family in a dangerous situation. The vehicle is currently at a GMC dealership and is available for inspection upon request. The sudden loss of engine power on a busy interstate created an immediate safety hazard. Traffic was traveling at highway speeds, and the vehicle rapidly lost the ability to maintain speed, increasing the risk of being struck from behind or being involved in a serious collision. My family was in the vehicle at the time, making the incident especially concerning. The GMC dealership has confirmed that the engine failure is related to the L87 engine issue and advised that the repairs will be covered under the applicable warranty/recall-related coverage. Additionally, after the original recall service was performed, an expanded recall was added to my VIN, further indicating that the original remedy may not have fully addressed the underlying defect. The vehicle is currently being inspected by the authorized GMC dealership. Prior to the engine failure, there were no warning signs indicating an imminent catastrophic failure. The recall service had already been completed, leading me to believe the vehicle was safe to operate. The engine nevertheless failed after the recall remedy, raising concerns that the corrective action may not be sufficient to prevent future failures

Filed Jun 16, 2026 · Engine · 70,548 miles · WV

The contact owns a 2022 GMC Yukon XL. The contact stated that while driving approximately 74 MPH uphill, the vehicle suddenly lost power and shut off. The vehicle became disabled in a travel lane of the interstate. The vehicle was towed by flatbed to a local dealer to be diagnosed. The dealer determined that the vehicle had experienced engine failure. The vehicle was not repaired because the failure was not covered under recall. The vehicle was associated with special coverage. The manufacturer was notified of the failure but provided no assistance. The failure mileage was approximately 70,548.

Filed May 18, 2026 · Engine, Fuel system · PA

Engine failure occurred while driving with two children in the vehicle, creating a serious safety hazard. The vehicle experienced a sudden loss of power and stalled completely while in motion, with no prior warning lights, alerts, or messages. Prior to this failure, the vehicle had already failed the GM PICO test related to the known L87 engine issue, and the recommended corrective action was changing the oil to 0W-40 synthetic and replacing the oil cap. Despite that intervention, the engine still failed at approximately 49,000 miles. A sudden complete engine stall without warning while driving created a dangerous situation, particularly with children in the vehicle. This raises concern that the prior corrective action did not resolve the underlying defect..

Filed Apr 18, 2026 · Engine, Transmission · VA

I am submitting a complaint regarding a serious engine failure in my 2022 GMC Yukon XL equipped with the 5.3L engine (VIN: [XXX] ). The vehicle has experienced a complete failure of the lifters and camshaft. Prior to the failure, there were noticeable engine performance issues, including abnormal ticking noises, rough operation, and loss of power. The condition worsened rapidly, ultimately resulting in the engine becoming inoperable. This failure presents a significant safety concern, as the sudden loss of engine performance or power could occur while driving at speed, increasing the risk of a crash. The vehicle is currently not drivable and requires extensive engine repair or replacement. Given the severity of this issue and the potential safety risks, I am requesting that this complaint be formally investigated. I understand that similar issues have been reported in vehicles with this engine, and I believe this may indicate a broader defect affecting reliability and safety. Please let me know if any additional information or documentation is needed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 9, 2026 · Transmission · MT

My car lost all power on a bridge and started jerking me forwards and backwards. High RPMS and eventually lost reverse. Code number p0777. Seems aligned with the newest transmission recall, but my vin is not listed.

Filed Apr 6, 2026 · Engine · NJ

My vehicle experienced complete engine loss while driving due to a crankshaft failure. There were no warning lights, no messages, and no indication of a problem. The vehicle suddenly lost all power in traffic and then the engine seized completely. This is extremely dangerous and could easily cause a crash. The dealership confirmed this is part of the known national crankshaft defect, but the replacement engine is on backorder for over a month, leaving me with an unsafe and unreliable vehicle. GM has replaced or attempted to replace the motor multiple times, and the defect continues. This truck should not be on the road. I am reporting this because it is a serious safety hazard to me and other drivers. A vehicle losing all power with no warning is a life-threatening defect

Filed Mar 9, 2026 · Engine · VA

Sudden loss of propulsion at highway speed in lane of travel. Multiple vehicles almost ran into my vehicle as this was happening and alap afterwards, because I couldn’t get it out of the lane of travel all the way. It was towed to the dealer and determined to have a seized engine. There were zero lights or sounds preceding the loss of power. Safety recall N252494003 was performed at dealer in September 2025 and vehicle was deemed clear and safe.