2022 GMC Yukon Xl

I think it is a transmission type of failure. I'm not sure of the exact mechanical specifics. While putting the vehicle in reverse, driving and or accelerating it feels like the transmission is locking up and then releasing, and then locking up again. It felt very dangerous for that to happen while driving down the road. I took the vehicle to a local mechanic that was near by for assistance and he said I should take it to a dealership because there was a recall due to that issue on my type of vehicle that he knew about. So I call a dealership to make an appointment, tell them I think the issue is due to a safety recall due to the transmission locking up. They check my Vin# and say there are no recalls for my vehicle, even though it falls in the same year, make, and model of affected GM vehicles , therefore they could not make a recall appointment for me. Even though i was experiencing the same type of issues on the same type of vehicle thats included in the recall. I did not have any warning lights before, or while driving. The day it happened, I drove the vehicle to work, parked, was at my office all day. Came out to go home and put the SUV in reverse and it like lunged forward, almost hitting the car parked in front of me. I thought I must have had it in the wrong gear or something. So I put it in park and then tried again. Then it felt like it locked up, rocked forward, and then allowed me to back up. I put it in drive and again it was like it was locking up and releasing very forcefully but then smoothed out and drove normal for a few miles and then locked up again. There were never any warning lights or messages during this time. I called GM to inquire why my vehicle isnt in the safety recall and all they could tell me was that they did not know. I was very afraid I was going to be involved in an accident due to this issue.

My 2022 GMC Yukon XL with the 6.2L L87 engine was previously subject to NHTSA Recall 25V-274 / GM Recall N252494000 for L87 engine loss of propulsion. The recall was closed by the dealer as “PicoScope Inspection — Engine Passed / Update Engine Oil Type,” with the oil/cap/filter remedy. The vehicle was later brought back to the dealer for engine noise/knocking, check-engine light, and engine oil light/oil warning concerns. The dealer has now confirmed that the dipstick was not picking up oil, the oil level was severely low, the oil condition was severely degraded, and abnormal engine noise was heard. My VIN also shows active GM Special Coverage N252494003 through 1/15/2032 or 150,027 miles. The dealer previously stated that the underlying PicoScope pass data from the recall inspection is no longer available to the dealership after submission. This is not the first oil-related concern. During a prior service visit in September 2025, around the same time the L87 recall was completed, the dealer documented an engine oil low message and an upper oil pan leak causing the low-oil message. I am concerned the L87 engine may be failing after the recall remedy was previously marked complete, creating a risk of engine failure or loss of propulsion while driving. I am also concerned the current engine/oil/noise condition is being treated as customer-pay/out-of-warranty before the root cause is fully diagnosed or reviewed by GM under Special Coverage N252494003.

On [XXX], my 2022 GMC Yukon Denali XL (VIN [XXX] ) experienced a complete loss of propulsion while I was driving on [XXX] in El Paso, Texas, with my wife and two young children in the vehicle. Mileage was approximately 50,364. While in motion, the vehicle was displaying abnormal behavior, concerned the vehicle would stall on the highway, I exited at the Geronimo exit. As the vehicle slowed, it shut down entirely. Multiple restart attempts failed. The dashboard cycled on and off, displaying a "Service 4WD" warning while the vehicle was in 2WD mode. The transmission locked, and the vehicle became inoperable in the middle of the roadway with traffic passing on both sides. OnStar SOS was activated to communicate the unsafe location. The El Paso Police Department was requested to divert traffic. A city tow vehicle arrived after approximately fifteen minutes; my family was assisted across the roadway. Roadside assistance did not arrive for approximately three hours. This was the second loss-of-propulsion event on this vehicle in less than twelve months. The first occurred in March 2025 and resulted in engine replacement under NHTSA Safety Recall 25V274 (L87 Engine Loss of Propulsion). The [XXX] failure occurred after the recall remedy had been applied and the engine was replaced. The vehicle was towed to the dealer who replaced the throttle body, intake air duct and a service item titled "Repair open ground circuit". I am filing this report to document a second loss-of-propulsion event on a vehicle that already received the remedy under Recall 25V274, and to ensure NHTSA has visibility into the potential pattern of recurring or inadequate remedy on the L87 platform. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

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)

While driving in traffic on a 2 lane road with small shoulders, the engine stopped, dash indicated automatic shift to neutral, restart vehicle. vehicle coasted to a stop partially blocking the lane due to lack of shoulder and size of vehicle. Turned off ignition and attempted to restart. there was a click and the dashboard/electronics all went blank/off for several seconds then came back on. Attempted this 4 times with the same results. Called GMC roadside assistance for a tow to the dealership. The vehicle could not be shifted to neutral due to not being able to start. The tow driver had to forcefully pull the vehicle onto the flatbed with the vehicle still in park. I do not know what method was used to get the vehicle off the flatbed tow truck. Vehicle was partially blocking the roadway for an hour before the tow truck arrived leaving me vulnerable to a high speed crash. And leaving the tow operator open to an accident during the 30 minute loading Upon diagnostic the dealer informed me the engine has seized/locked up. All recalls for loss of propulsion were completed at 48,711 miles on September 7, 2025 passing inspection and dealer performing an oil change to 0W40 oil. Engine failure was 3429 miles after the recall was performed with 52,140 miles. There was no warning or difference in driving characteristics prior to failure. There was not a loss of oil pressure prior to failure according to dash gauges.

I was driving down the road and my vehicle went into limp mode, and I had reduced acceleration. I got to my destination then could not reverse the vehicle out of the parking space, reverse would not engage and allow me to have acceleration power. Because the parking space was on an incline we could roll backwards then drive forward, in limp mode, to a nearby mechanic. The vehicle diagnostic codes they got were: no reverse, p0700, p0776 and p18a1. They told us the repair needed would be to remove and replace the valve body assembly for $2,862.40. There were no warning lights that came on prior to the incident. Once the vehicle went into limp mode the check engine light came on. We had a Chevy dealer and got a second opinion at a transmission shop to check the transmission in December 2025, because we were concerned about a possible hard shift when shifting vehicle from park to drive, but both places concluded there were no problems. We now have had it towed to a transmission shop for a second opinion. It is available for inspection. We see a recall issued to other 2022 gmc Yukon xl that does not come up when we put our vin # in, but could possibly apply to our vehicle too is recall #: N252536750.