2024 GMC Yukon XL transmission problems

Filed Oct 21, 2026 · Engine, Steering · KS

2024 GMC Yukon XL Denali with approximately 30,000 miles. The vehicle previously completed the L87 recall remedy (the federal safety agency 25V274000). The dealer inspected the engine, it passed, and the higher-viscosity oil change, filter, oil-fill cap, and owner’s manual insert were performed. Despite that remedy, the vehicle later experienced a sudden loss of propulsion on the highway while traveling with family. The vehicle began shaking and the engine shut down. There were no check-engine lights, warning messages, or other notifications prior to or during the failure. The vehicle was towed to a GM dealer. Diagnostic testing at the dealer confirmed that the engine requires replacement under Special Coverage N252494003. The dealer indicated the replacement engine will be remanufactured. The service department also confirmed that the vehicle had been maintained in excellent condition and that all recommended services were completed as required, so the repair is being covered by GM at no cost to the owner. The prior recall remedy did not prevent a subsequent sudden highway failure with no advance warning. Once the current repair is completed, the vehicle will carry a permanent engine-related entry on its history report at low mileage, which will affect residual value. This complaint is being submitted to document the post-remedy failure involving sudden loss of propulsion on the highway with no warning.

Filed Sep 17, 2026 · Engine, Fuel system · GA

On September 17, 2026, at approximately 22,861 miles, the 6.2L L87 V8 engine in my 2024 GMC Yukon XL suffered a sudden loss of propulsion and was subsequently confirmed by an authorized GMC dealer to be seized and require complete replacement. I was entering northbound I-75 from the Mt. Paran Road entrance in Atlanta, GA with two of my children in the vehicle. This entrance has an extended acceleration ramp where vehicles accelerate to interstate merging speed. While accelerating, the engine briefly stuttered and then the vehicle stopped producing power when I pressed the accelerator. I was unable to continue accelerating and moved onto the limited shoulder. Other vehicles continued accelerating toward I-75 and passed immediately adjacent to us at significant speed. My children and I remained stranded there for approximately two hours waiting for a tow. The vehicle was towed to an authorized GMC dealer, which confirmed the engine is seized and requires complete replacement. The vehicle and failed engine are currently at the dealer and available for inspection. This vehicle was previously subject to the federal safety agency Recall 25V‑274 / GM N252494000 for L87 engine failure and loss of propulsion. An authorized GMC dealer completed the recall procedure on November 3, 2025. The engine was not replaced; it passed the prescribed inspection and received the higher-viscosity-oil remedy. Despite completion of the recall procedure, the engine subsequently experienced the loss-of-propulsion condition identified by the recall. I understand the federal safety agency has investigated L87 engine failures occurring after completion of this recall remedy, including RQ26001 and EA26005. I am reporting this post-remedy failure because it may be relevant to that investigation.

Filed Jun 1, 2026 · Engine, Fuel system · GA

1.XXX XX— GM Recall Notification (Recall No. N252494000) I received official notification from General Motors of Recall N252494000 affecting my vehicle. I brought the vehicle to [XXX] as directed to have the recall remedy performed. 2. XXX — First Report of Engine Propulsion Issues I reported engine propulsion concerns to Jim Ellis. This was my first formal complaint regarding the performance of the vehicle following the recall remedy. 3. XXX — Oil Type Change Performed by Jim Ellis Jim Ellis performed an engine oil type change, switching to 0W-40 oil, and advised me that this change would serve as the fix for Recall N252494000. I accepted this remedy in good faith. 4. XXX — Low Oil Warning Light Activated Approximately nine months after the recall remedy, and well before the end of the recommended oil life cycle, the low oil warning light activated on my dashboard. This is abnormal and indicative of excessive oil consumption. I returned to Jim Ellis, who performed a fresh oil change and placed my vehicle on a 6,000-mile oil consumption test — an acknowledgment that an oil consumption problem exists. 5. XXX — Active Engine Misfires, Jerking, and Flashing Check Engine Light While operating my vehicle on Sunday, May 31, 2026, I experienced severe engine jerking and misfires. The check engine light began flashing — not steady — which I understand to indicate an active and serious engine misfire event. I was genuinely concerned for my personal safety and immediately parked the vehicle. It has not been driven since. 6. XXX — GM Corporate Case Opened I contacted GM Customer Care and was assigned Corporate Case Number INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 13, 2026 · Engine, Transmission · FL

While driving I had a sudden loss of power. Contacted dealership and was ask for engine code light. Told them no light had appeared on dashboard. Did note intermittent shift changes while driving after this occurrence. Transmission and or engine feels like it has a studder. Concerning.

Filed Jan 28, 2026 · Steering, Suspension · NY

I am filing this complaint regarding a serious and ongoing safety issue with my GMC Yukon Denali that began with a complete engine failure while driving on the highway with my entire family in the vehicle. While driving at highway speed (about 60–70 mph), the vehicle suddenly lost power and shifted into neutral on its own. While still moving, I tried multiple times to shift back into Drive so I could safely get off the road, but it would not engage. I was only able to coast partially onto the shoulder before the vehicle came to a complete stop, still partly exposed to traffic. The engine shut off and would not restart at all. It would not go into Drive or Neutral, and the vehicle was completely dead. And it had to be towed. The dealer later told me the engine had failed and that a new engine was installed. About a week later, I picked the vehicle up. Less than 20 minutes after leaving the dealership and getting back on the highway, smoke started coming from the vehicle and warnings appeared, messages that the engine was overheating and that I needed to stop the engine immediately. The vehicle was not drivable again and had to be towed back. I again had to arrange transportation home. A few days later, I picked the vehicle up again. Since then, I have had serious four-wheel-drive and drivetrain issues. The vehicle became stuck in 4 Low and I could not get it out for over a day. When it finally came out, the drive mode buttons stopped working correctly. Selecting 2 High sometimes puts it into 4 High, selecting Auto puts it into 2 High, and Auto mode no longer appears. Even when it shows 4 High, the steering is restricted cannot steer 100% to the right or left and the vehicle binds, pops, and jumps when turning. I believe this vehicle is unsafe and poses a serious risk.

Filed Jan 26, 2026 · Driver assistance, Transmission · PA

Transmission appears to be lunging and shuttering. Dealer has indicated that the valve body need to be replaced or the vehicle could leave me stranded or without propulsion while driving. From my research this appears to be related to other safety recall and service campaigns for this type of vehicle and the transmission that I have in my vehicle. Also the camera system doesn't work correctly as it relates to parking assist and collision control. My repair dealership has stated they are having trouble getting GM to cover this repair.

Filed Jan 24, 2026 · Transmission · TX

Good morning. It’s about the safety recall for loss of propulsion due to manufacturing defects that can lead to engine damage and engine failure. GM notified me about this in September 2025 . So, I drove my vehicle to the dealership to inspect my vehicle , my SUV passed the examination, they replaced the oil recommending now another one with higher viscosity, new oil cap and an owner’s manual insert free of charge. Ladies and gentlemen; My concern from here on now is, just doing this is going to give me a peace of mind? Meaning the manufacturer defects issue is not longer in my vehicle? I paid a top dollar for this specific unit because I like to travel across the country even to go to Mexico. Right now I’m driving the truck silent, no music at all.driving the vehicle just to go to the store, to buy groceries,very short trips, around my neighborhood Trying to hear any noise, any knocking noise on my engine, observing the dashboard controls constantly, my family and I decided to stop traveling due to my vehicle is not secure to do it with this particular 6.2 engine because my notification letter from GM says that if the vehicle fails during operation will lose control increasing the risk of crash. As a GM customer, using my vehicle with my family I don’t feel safe and comfortable with my vehicle therefore I am asking and expecting for a better solution from General Motors. Not just replacing the oil for another one with a higher viscosity because doing this only is telling me that it’s just a cheap remedy, but the manufacturer defects are still there with my vehicle . I know they extended the warranty to cover this defect if something happens in the future, but isn’t about that , is about the safety, the concerns, the feelings of the family members involved in this insecure situation while driving this vehicle in the highway at 70 miles an hour.Ladies and gentlemen. I am pretty sure you can help us with this petition , GM should be able to do something way better.

Filed Dec 10, 2025 · Electrical, Transmission · TN

vehicle parked for extended period, 7-10 days, entered vehicle on 12/05/25 and proceeded to start - immediately service transmission appeared in display, check engine light on, dash flashing and door locks going up and down and chiming of alarms. was able to place in reverse, backed up, put into drive and vehicle would move approx 5-8 ft, lock up and stop, start again and repeat, etc.. put vehicle in low1 was able to get back in driveway and parked. had vehicle towed to closest dealer who had a transmission specialist available and worked with GM warranty plus GM CarBravo warranty to address issues (multiple dealers refused or didn’t have available personnel and/or were multiple weeks out for repairs). called and advisor said i needed a new battery (22mo of a 36mo free battery replacement GM AC Delco) and to have transmission valve body replaced and no tcm, 3-5 days for part delivery and that this was under a GM Service bulletin # PIP6069 (which i pulled up online), stated this repair (valve body) fixed most vehicles but knew of a few instances where complete GM 10spd transmissions had to be replaced. glad this happened in my driveway versus while being on a long distance trip. waiting on part delivery and unable to use vehicle due safety issue with transmission.

Filed Jun 26, 2025 · Engine, Fuel system · TX

I am filing this complaint regarding GM Recall N252494000 (the federal safety agency Campaign Number 25V274) for my 2024 GMC Yukon XL (VIN: [XXX] ). The issue involves a serious engine defect related to the crankshaft and/or connecting rods, which can result in catastrophic engine failure and loss of propulsion while driving—a clear and dangerous safety risk. I first became concerned when early reports of this issue began circulating publicly. As a father of young children, I became increasingly uneasy that my vehicle could potentially fail while in operation. Receiving GM’s formal recall letter only validated my growing concern for my family’s well-being. It’s deeply frustrating and unsettling. The notice states that parts to repair or replace the engine are not currently available, and offers no clear timeframe for when a remedy will be provided. I feel like we are being strung along while forced to continue using a vehicle that may become unsafe at any moment. This delay is unacceptable. There has been no offer of a loaner vehicle, no proactive communication from the dealer, and no assurance from GM that they are prioritizing driver safety over logistics. I am requesting that the federal safety agency investigate whether GM is doing enough to provide timely remedies to affected customers. I also urge you to consider whether interim solutions (such as alternative transportation or more aggressive recall execution) should be mandated. Thank you for your attention to this matter. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 5, 2025 · Transmission · NH

PURCHASED A GMC DENALI YUKON ULTIMATE XL JUNE LAST YEAR . 103 THOUSAND. bOUGHT IT IN FOR FIRST OIL CHANGE AT 5500 MILES THE CAR HAS BEEN LEAKING OIL ,TOO, nOW ITS BEEN BACK THREE TIMES AND STILL LEAKI9NG OIL. lAST WEEK BROUGHT IT BACK TOLD SERVICE ADVISOR ITYS LEAKING AT THE OIL PAN BY THE PLU IT DRIPS EVERYNIGHT ON THE FLOOR OF MY GARAGE AND I AM PUT OIL IN IT EVERY TWO WEEKS. aNYWAY THEY SAID THEY DIDD THE DYE TWICW AND DIDNT FIND THE LEAK, I SAID LET ME SHOW THHE MECHANIC THE SPOT IT LEAKS .I WENT IN SHOP UNDER VEHICLE SHOWED THE MECHANIOC HE LOOKS AND SAYS OK NOW I SEE IT ITS NEED A REAR Main seal and oil pan gasket. So now i am bringing it in on the 134th of this month for a repair. The vehicle was made june 20-04 and tullety gmc says my 6.2 is not involved in recall the lady checked her computer.. I would have never bought this vehicle knowing gmc knew they had an iossue with the ngine. My resale value will be hurt big time by all; the negative publicity. I hear they want to put zero 40 thicker oil to patcvh a sick engine ,,thats a band aid on a engine wiith lo0ose clearances. and why is the 2025 6.2 going top keep using zero twenty and not zero 40 oil. I [XXX]i think , this engine in this gmc is noisy in the motrning also when cold . I think i am gettingb a [XXX] story . I only have 13200 miles and the car is still leaking after 3 visits . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)