2021 GMC YUKON Complaints

1. What component or system failed or malfunctioned. The Fuel Pump Module failed unexpectedly while the vehicle was being driven. Failure caused the engine to stall, resulting in a complete loss of power and mobility. Unsure if part is available for inspection. 2021 GMC Yukon have a recall N252516900, but our VIN is not included in this. Can our VIN be added to this recall please? 2. How was your safety or the safety of others put at risk? The vehicle abruptly stalled while being driven through a parking lot, causing a complete loss of power and leaving the vehicle disabled in an active traffic area. Because the vehicle could not be shifted out of PARK, it became an obstruction, creating a hazard for other drivers navigating the parking lot and increasing the risk of a collision. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. After the vehicle was towed to a local mechanic on a flatbed truck, the dealer diagnosed and confirmed that the Fuel Pump Module had failed, which caused the vehicle to stall and lose power. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle was inspected by a local repair shot, which diagnosed the failed Fuel Pump Module. The vehicle was also evaluated during the towing process. To my knowledge, the manufacturer, police, or insurance representatives have not separately inspected the vehicle or component. 5. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? Prior to the failure, there were no significant symptoms indicating an imminent fuel system failure. When the incident occurred, the vehicle abruptly stalled, lost all power, and displayed a message indicating that the vehicle was "not in a condition to shift," preventing it from being shifted out of PARK. This message first appeared immediately following event.

Lifter/camshaft/engine failure. GM knows this is an issue with these models/years. They only want to cover half of the repair sticking me with a bill for $5600. Safety is a concern because they know this is an issue and not issuing a recall currently. I waS driving when this happened which could have caused me to get into an accident. Very dangerous. Car is currently as GMC Started by showing low oil in between oil changes last year. Went in for an oil change and told them about it. Dealership told me it was the air hose box and that they didn't see any other issue. I believe they are told to lie to get each customer further out of warranty. I was driving and all of a sudden the car started violently shaking and lights started flashing at me.

Driving on the freeway the engine started making super loud knocking noises for while going 70mph . Then it immediately died everything turned off no power I was barely able to get it off the freeway while coasting. And my husband tried to push it off the road more but when it dies we are not able to put the car in neutral !! It’s a push button gear shift ! When there’s no power the buttons don’t work!! It was 105 degrees out that day in Sacramento , the car had zero power the battery is not the problem . The motor is blown and the car hasn’t started since that day. These cars are dangerous to just die in the middle of the freeway! The motor has already been replaced in Feb 2026, we bought it in march of 2026 with 57k miles on it. I added about 12k miles and the motor blew up again!

My 2021 GMC Yukon Denali features the 6.2L L87 V8 engine. This vehicle was previously serviced for the GM voluntary recall regarding engine bearing failures, and the dealership completed the remedy by inspecting the motor and changing the oil to the thicker 0W-40 specification. Since completing this recall fix, the vehicle has developed an intermittent rough idle and sputtering behavior. The dealership has been unable to duplicate the intermittent issue and claims it falls under normal behavior. I am filing this report because my vehicle is exhibiting post-recall remedy engine degradation, matching the exact failure patterns outlined in the NHTSA Engineering Analysis EA26005 escalated on August 20, 2026. This intermittent sputter represents a severe safety hazard regarding potential sudden loss of motive power while driving.

I was driving down the highway and all at once a bunch of different lights and emergency warnings started flashing on my dashboard and my car was almost like sputtering like it wasn’t getting the gas it needed or something. You could feel lots of movement right up front and I was forced to pull over and get towed. They said the engine would need to be completely replaced.

2022 GMC Yukon XL suffered catastrophic transmission failure at approximately 87,000 miles. An ASE-certified transmission repair facility determined that the torque converter failed, resulting in transmission damage requiring over $7,000 in repairs. GM declined any assistance solely because the repair was performed by an independent ASE-certified facility. I am concerned that a major transmission component failure at this mileage may represent a broader defect, particularly given transmission-related service bulletins and NHTSA Recall 26V085 affecting certain 2022 Yukon XL vehicles.

Engine failed. Had to be towed to the dealer to get a new motor. It was part of the 6.2l L87 recall

Was driving the vehicle at 70 mph on the highway without any issues for several hours and suddenly the vehicle lost power and had no propulsion. It went into neutral automatically and the engine shut off while driving. Thankfully I was on a downward slope and could steer the vehicle off the very busy highway. Once safe, I tried to restart the car but the engine would not start or turn over. Roadside assistance came to help as well as a flatbed tow truck. It was taken to a nearby GMC dealer but it remains completely dead despite the battery being fully charged and all of the electronics working. No known error codes are showing up. It’s an L87 engine and was part of the GM recall. The recall work was completed in Nov 2025.

I am writing to report my 2021 GMC Yukon Denali. This vehicle recently suffered a catastrophic failure of its 6.2L V8 engine while traveling on the freeway with my family inside, creating a severe and terrifying safety hazard. This failure occurred after my vehicle was supposedly remedied under GM’s official safety recall for the known L87 engine defect (Recall N252494001). As the National Highway Traffic Safety Administration's (NHTSA) recently escalated Engineering Analysis reflects, the recall inspection and 0W-40 oil remedy are failing to prevent these engines from destroying themselves. My experience is direct evidence of this continued safety defect. GM has since now fully replaced my engine however only reimbursed me 30% of what it cost to tow to their dealership. Thank you for your consideration.

I am filing this complaint regarding repeated catastrophic engine failures in my 2021 GMC Yukon Denali equipped with the 6.2L L87 V8. I purchased this vehicle as a GM Certified Pre-Owned vehicle. At approximately 7,000 miles, the engine developed a knocking noise and was determined to require complete replacement. I brought the vehicle to the dealership on May 19, 2025, and it remained there until September 17, 2025—nearly four months—while the replacement engine was obtained and installed. Since receiving the replacement engine, I have driven approximately 6,000 miles. On August 4, 2026, I was informed by the dealership that the replacement engine has also failed and requires another complete engine replacement. This means my vehicle has now experienced two major engine failures at extremely low mileage, including failure of the replacement engine. I understand that the 6.2L L87 engine has been subject to a GM recall involving potential engine failure and loss of propulsion. I have now learned that NHTSA has escalated its investigation into continued failures involving these engines, including failures occurring after the recall remedy. My experience appears directly relevant to that investigation. I regularly transport my children in this vehicle and am extremely concerned about the possibility of an engine failure occurring while traveling at highway speeds or with my family in the vehicle. I feel fortunate that the previous failures did not occur under those circumstances. I have contacted GM and requested that they repurchase or replace my vehicle. GM denied my request and has refused to provide me with a reason for the denial. I am asking NHTSA to document my complaint and investigate whether the existing recall remedy is adequately addressing the underlying safety defect, particularly given that my replacement engine failed after only approximately 6,000 miles.I can provide repair orders, recall documentation, mileage records, and correspondence with GMC