2022 GMC Sierra 1500: engine failure

Filed Nov 4, 2026 · Engine · LA

I am filing a safety complaint regarding my 2022 GMC Sierra 1500 Limited Denali equipped with the 6.2L L87 V8 engine. My vehicle has developed a persistent engine knocking noise that becomes more noticeable as the engine reaches operating temperature. The knocking continues despite completion of the applicable engine recall work. I am concerned that this condition may be related to the premature internal engine failures associated with the GM 6.2L L87 engine. The continued knocking raises concerns about a possible connecting rod bearing or other internal engine component failure. A sudden engine failure while driving could cause an unexpected loss of propulsion, creating a serious safety hazard, particularly on highways or in heavy traffic. I am requesting that the federal safety agency investigate whether the completed recall remedy adequately addresses vehicles that continue experiencing abnormal engine knocking and potential internal engine damage. The engine remains installed in the vehicle and is available for inspection. I am requesting further investigation into this safety concern.

Filed Nov 1, 2026 · Engine, Transmission · FL

At three years old with 37,000 miles on it, the engine started ticking loudly consuming oil when I went to look it up. I saw there was a recall. Nobody had notified me about the recall. The technician said it failed their diagnostic test and I would be getting a new engine. Nine weeks later, I get a new engine. One year later at 51,000 miles the transmission failed.

Filed Oct 26, 2026 · Engine, Fuel system · TX

After the recall was completed for the propulsion update and oil weight of 0-20 to 0-40 the truck started experiencing engine jerking and noise while driving. The MPG decreased significantly after the engine was replaced at 22k miles, driving on the interstate cruise control at 80mph the engine seized and I was almost smashed by a simi-truck. No steering, no power whatsoever. I was pulling on the steering wheel to get the truck off the freeway and out of the way. Fast forward around 70k miles, all the while I could deal with loss of MPG after engine replacement. No problems. Then came the recall and reflashing of the firm/software and a few months later I was making an u-turn when all a sudden the engine made a loud bang and bad tapping noise came from the engine. I could barely make it to the dealership where I bought the truck maybe 2 miles from where it happened. The dealership service center had the truck for a week then told me to come pick it up there is nothing they could do under warranty. All valve lifters except #3 are blown. GMC says the engine is not under warranty and I must pay $17k for a new engine.

Filed Oct 18, 2026 · Fuel system, Transmission · TX

This report shows 4 more new attempts to repair the drop in power, bucking, surging, and lurching that my truck has been doing since May 2026, after the L87 Engine replacement. This issue has caused me to come very close to rear ending a few vehicles, including a Deer Park police officer. It has caused me to run through red lights unexpectedly. The vehicle has had a case open with GM Corp. Customer Care, Case(s) 95259917 (OLD), Case # 108994166 current case (Phone, Instagram). The problems are dangerous because the truck can begin shutting down and feel as if its stopping due to being stuck between gears or maybe torque converter. It happens on the highway at different speeds. It happens in city, stop and go traffic. The lunging forward comes into play with no prior warning. No lights, no messages on the instrument cluster. The dealer had me come in and drive the vehicle to show one of the managers what is happening while I am commuting. It has been confirmed EVERYTIME I was told there is no problem. I am attaching the latest work orders related to the issues after the engine replacement. For the past 6 months this truck is in the shop or stuck in my driveway more than it is driven or used. It is medically necessary that I have transportation available 24/7. I am under the care of several specialists since I was diagnosed and treatment for cancer began. Notice there are TWO work orders NUMBERED "63481" They are attached. ONE the third attempt dated (8-28-26) printed when i picked it up my ADAS was replaced and it has AVISRentCar, I paid for. Second "63481" forth attempt dated (9-15-26) printed when i picked it up after a Transmission relearn AGAIN (duplicate W.O. #) This one has Enterprise Rental I paid for. Now a FIFTH attempt to repair the same issue (9/21-9/29) This time they replaced the transmission valve body. Now, the truck is in the shop AGAIN, a Sixth time for the same problem. No issues found. I tested it again to show them. I am also attaching FTC report

Filed Oct 8, 2026 · Engine · MA

The engine on my 2022 GMC Sierra seized while driving. There were no warning lights or any other indicators that there was a problem. My vehicle had previously underwent the L87 Recall "fix" of changing the oil cap and using different engine oil.

Filed Oct 2, 2026 · Engine · 77,844 miles · ME

The contact owns a 2022 GMC Sierra 1500. The contact stated that while driving 40 MPH, there was an abnormal sound coming from the vehicle. The dealer was contacted by phone and made aware of the failure. The vehicle was taken to the dealer where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was repaired. The contact stated that the failure had occurred a month after an unknown recall repair where the engine was replaced. The contact stated that the engine had been replaced three times between 2022 to February 2026, under the recall. The manufacturer was contacted by phone and made aware of the failure. The failure mileage was approximately 77,844.

Filed Sep 23, 2026 · Engine · IN

Vehicle has been maintained at GM authorized dealership according to manufacturer recommendations. 6.2L recall was performed as recommended by manufacturer at approximately 25k miles. Engine failed at 36000 miles. The failure created a safety situation where vehicle suddenly lost propulsion power on the interstate. GM replaced the engine with a remanufactured engine. Vehicle was out of service for approximately 90 days. My family has lost confidence in the vehicle and unfortunately because of the now known issues with this engine the vehicle has lost significant value, making it nearly impossible to trade the vehicle in for something reliable.

Filed Sep 16, 2026 · Engine · TN

While driving down the street pulling a trailer the engine stopped. I was able to get it to the side of the road. I called the GMC dealer and they dispatched a wrecker. No prior warnings, just a check engine light right before it failed and lost momentum. This is the second of three new trucks from GMC with engine failure, 1st was lifters, and the other two were bearing locked up. All maintenance was performed by the Dealership on all three trucks

Filed Sep 10, 2026 · Fuel system · 31,298 miles · SC

The contact's son owns a 2022 GMC Sierra 1500. While the contact's son was driving at an undisclosed speed, the vehicle stalled and the engine seized. The driver attempted to restart the vehicle, but the vehicle failed to restart. The vehicle was towed to an independent mechanic, where it was diagnosed with a fuel pump drive module failure. The contact was informed that the fuel pump drive module needed to be replaced. The vehicle was repaired. The contact stated that the failure was a known failure with the vehicle. The manufacturer was contacted by phone, and a case was filed. The failure mileage was approximately 31,298.

Filed Sep 2, 2026 · Engine · CO

engine failure

Filed Sep 1, 2026 · Engine · 34,000 miles · TX

The contact owns a 2022 GMC Sierra 1500. The contact stated that while driving approximately 65 MPH, the transmission shifted to neutral(N), and the contact was unable to control the vehicle. The vehicle was coasted to the side of the road, and the transmission failed shift into park(P), reverse(R), or drive(D). The message "Conditions no Longer Exist for Driving," was displayed on the screen. The vehicle was towed to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The contact was informed that the nuts were welded to the engine, causing a failure with the engine overheating. The failure also occurred while driving 65 MPH, and the transmission shifted into neutral with the same message displayed on the screen. The vehicle was towed back to the dealer, and it was diagnosed with engine failure. The contact stated that the engine was replaced. The dealer informed the manufacturer of the failure. The failure mileage was approximately 34,000.

Filed Aug 31, 2026 · Engine, Transmission · 12,000 miles · MN

The contact owns a 2022 GMC Sierra 1500. The contact had experienced several catastrophic failures with the engine and transmission. The contact stated that while driving 40 MPH, the vehicle shut off without warning, and lost power. The vehicle was towed to a dealer for an engine replacement. On another occasion while driving 65 MPH, the vehicle shut off without warning and the wheels locked up. The vehicle was towed to GMC of Rochester (4646 E Frontage Rd, Rochester, MN 55901), where a second engine failure was diagnosed and the vehicle was repaired under an extended warranty. Upon retrieving the vehicle, the vehicle was hesitating while depressing the accelerator pedal, with the messages "Reduced Engine Power" and "Check Engine" displayed. While attempting to reverse(R) into a driveway, the vehicle became immobile. The vehicle was towed to Red Wing Chevrolet (2500 US-61, Red Wing, MN 55066), and the technician diagnosed the vehicle with total transmission failure. The contact was informed that there was heavy metal debris inside the transmission pan. The manufacturer was notified of the failure but declined to assist. The vehicle remained with the dealer. The failure mileage was 12,000.