I received a letter from GMC almost 4 months ago telling me that my 2024 GMC Sierra 1500 was recalled due to an engine safety issue. The letter stated that there was no remedy yet and that a subsequent letter would be sent with instructions on how to have repairs done. I never received a second letter. Also, my GMC app stated that the vin had an incomplete recall. Today the app states that there are no incomplete or completed recalls. I called my dealer and they said they know nothing about the recall and I should just wait. This is unacceptable and I need some type of resolution.

- West Bend, WI, USA

On 22 April I turned my truck in to the dealership service department due to recall of the L87 6.2L engine. Also, told the rep, "my truck was shifting hard". After inspection revealed the valve body needed replacing. My vehicle is still at the service department today with no remedy in sight. I asked if Gm could just replace my transmission because, the part is not coming. They explained they would replace the transmission, but they can't find a 10 speed transmission available to swap out. I call weekly to get updates. nothing!!

- Clarksville, TN, USA

The contact owns a 2024 GMC Sierra 1500. The contact stated that while vacationing in Canada and driving at various speeds, the vehicle jerked, and the vehicle failed to accelerate as intended while depressing the accelerator pedal. In addition, the RPM fluctuated, and the engine revved abnormally. The contact stated that the vehicle failed to reverse(R) as intended. The contact was able to coast to the side of the road while in LIMP Mode. The vehicle was towed to a dealer, where it was diagnosed, and it was determined that the transmission had failed and needed to be replaced. The contact was informed that when the dealer contacted the manufacturer to order a new transmission, the manufacturer refused and informed the dealer to repair the current transmission. The vehicle was repaired. The contact stated that a week later, the vehicle experienced another failure. The contact stated that on a separate occasion, while approaching a stop sign, the brake pedal was depressed, and the engine revved unintendedly. The contact used force to depress the brake pedal. The failure persisted. The vehicle was taken to a dealer back in the USA; however, no cause for the failure was found. The vehicle remained at the dealer unrepaired. The manufacturer was notified of the failure and was awaiting the results of the diagnostic test. The failure mileage was approximately 9,000.

- Zanesville, OH, USA

On [XXX] while traveling on a highway, the vehicle lost drive power-?"the gear selector would not remain in Drive and reverted to Neutral for approximately 10 minutes. This created a serious safety hazard due to sudden loss of propulsion in moving traffic. The event was captured by OnStar, which emailed an automated incident alert. I later received a GM safety recall notice concerning potential engine loss of propulsion for vehicles with the 6.2L L87 engine (NHTSA 25V-274 / GM N252494000/001/002). I presented the vehicle to Ewing Buick GMC (Plano, TX) on July 23, 2025 for recall service and retrieved it on July 28, 2025. Approximately one week later, during an interstate trip to Kansas City, the engine catastrophically failed about one hour from my destination, leaving the vehicle disabled on the roadway shoulder. Roadside assistance towed the truck to Briggs Auto (KS). Briggs Auto diagnosed engine failure and ordered a replacement engine. I was informed the engine is on back-order with no estimated arrival, and the shop is under-staffed, prolonging repairs. The vehicle remains out of service. The sequence-?"pre-recall loss of propulsion, post-recall service, and then engine failure within a week-?"shows a serious safety defect that can lead to sudden loss of power at highway speeds, risking a crash. Frequency: Loss of propulsion occurred at least twice (March highway incident; subsequent engine failure in early August). Warning Lights/Messages: [Gear refuse tom shift to Drive mode.] Injuries/Crashes: None, but risk was substantial due to sudden power loss. Dealer Involvement: Ewing Buick GMC (recall visit); Briggs Auto (diagnosis/engine order). Attachments/Supporting Docs: OnStar email, recall notice, repair orders, tow documentation, photos/video. Please investigate whether 2024 GMC Sierra trucks with the 6.2L L87 engine continue to pose a loss-of-propulsion risk after recall service and whether parts shortages/back-orders are delaying effective remedy INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION

- Farmers Branch, TX, USA

I have not had an incident yet. However GM itself has told us that the car has a high probability of having a major problem while driving and it has caused numerous injury related accidents. In fact, they will not let us trade the vehicle or sell the vehicle because the car is dangerous to drive. They also have no timeline on fixing the vehicle, which requires an engine replacement. This is also an environmental problem as the temporary mitigation of the problem (I say mitigation because it does NOT solve the problem) significantly changes the fuel efficiency of the vehicle. GM should be forced to let us trade the vehicle back with a solid valuation of our vehicle as if the problem did not exist. No solution short of putting a new engine in the vehicle or allowing us to trade the vehicle in immediately should be acceptable. NHTSA is aware of the problem but for some reason seems to be ignoring it. When VW had an engine problem, which was not a safety hazard, VW made it right. GM has no intention of doing anything about it.

- Soddy Daisy, TN, USA

AS PART OF THE ENGINE RECALL ASSOCIATED WITH MY VEHICLE I HAD A REPAIR SCHEDULED AT PARKS GMC IN GREENVILLE, SC LOCATED ON LAURENS RD. WHEN I ARRIVED AT THE DEALERSHIP THIS MORNING I WAS TOLD THAT THEY HAD THE PARTS AND PROTOCOL BUT COULD NOT REPAIR MY RECALL BECAUSE GENERAL MOTORS WAS AT RANDOM SELECTING VIN NUMBERS TO DETERMINE WHICH ONES THEY WOULD REPAIR. THE SERVICE ADVISOR (KEVIN BLACKSTON) TOLD ME THAT GM WAS FIXING NEW VEHICLES FIRST AND THAT THEY COULD NOT DETERMINE WHEN MINE WOULD BE AVAILABLE FOR REPAIR. I DONT UNDERSTAND HOW THEY CAN SCHEDULE ME IN TO PERFORM THE REPAIR AND THEN REFUSE TO MAKE THE REPAIR STATING THAT THERE IS NO SOLUTIONS WHEN IN FACT THE SERVICE ADVISOR EXPLAINED IN DETAIL WHAT WOULD BE PERFORMED ON MY VEHICLE. HOW CAN GM ALLOW PEOPLE TO BE ON THE ROAD IN AN UNSAFE VEHICLE YET HAVE THE PARTS ON THE SHELF TO MAKE NEEDED REPAIRS. THE OTHER ISSUE I HAVE IS THAT THIS DEALERSHIP IS USING THIS RECALL TO [XXX] CLIENTS. A FEW MONTHS BACK WHEN I WENT IN FOR AN OIL CHANGE THEY SENT ME A TEXT MAKING AN OFFER IF I WAS INTERESTED IN SELLING THE VEHICLE. WHEN I WENT IN TO GET THE VEHICLE APPRAISED THEY TOLD ME THAT THEY COULDNT OFFER ME THE AMOUNT IN THE TEXT MESSAGE BECAUSE THE RECALL HADNT BEEN REPAIRED AND AT BEST COULD GIVE ME ABOUT 9,000 LESS. WHICH SOUNDS LIKE THEY ARE GETTING OVER ON PEOPLE AND MAKING A LOT MORE MONEY OFF OF GMs MISTAKE. I HAVE BEEN WANTING TO SELL MY VEHICLE AND GET ANOTHER VEHICLE FOR A FEW MONTHS AND I AM STUCK WITH THIS POTENTIALLY UNSAFE AND UNRELIABLE VEHICLE WHILE THE DEALERSHIP HOLDS ON TO PARTS FOR OTHER VEHICLES. I NEED ASSISTANCE IN PUSING PARKS GMC TO MAKE THE NEEDED REPAIRS. IF THE ENGINE WERE TO BREAKDOWN BEFORE THE REPAIR IS COMPLETED I COULD BE OUT OF A VEHICLE FOR MONTHS. I HAVE 2 CHILDREN TO GET BACK AND FORTH TO SCHOOL AND WORK THAT HAS TO CONTINUE WITH OUR WITHOUT A GOOD VEHICLE. ANY ASSISTANCE IN THIS MATTER WOULD BE GREATLY APPRECIATED!!!! ALSO I HAVE ALREADY CONTACT GM CUSTOMER SUPPORT INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION A

- Greenville , SC, USA

GMC has been aware of this problem since May 2025. They still do not have a remedy. This vehicle has not been operated for 41 days, since the recall states "The connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects that can lead to engine damage and engine failure. If the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash." Letter sent to GMC, but this site is not allowing me to download it. Safety recall N252494000

- Columbia, TN, USA

I purchased my GMC Sierra AT4 from your Oman GMC distributor called Moosa Abdulrehman Hassan. The vehicle suddenly stops and transmission automatically shift from 'D' driving mode to 'N' natural. First it happened when the vehicle driven 200km only when I took it to dealer Moosa Abdulrehman Hassan, they re-programmed the vehicle and doesn't know what the problem is. Second time happened when the vehicle was driven approx. 1,600 km and 3rd time again happened on [XXX], engine stopped and transmission shifted automatically from D to N, I have to start the engine and continue my journey. Again, I brought the vehicle to GMC dealer Moosa Abdulrehman Hassan. They kept the vehicle for almost one week and unable to demonstrate or diagnose the problem and asked me to collect the vehicle. Its high risk to drive the vehicle, when suddenly the engine stops and the gear shift from 'D' to 'N' while driving. I had option to choose, Ford 150 or Dodge Ram I bought GMC because it suppose to be reliable and have the best safety features. But I really regret now why I have purchased it, there are no technicians in Oman with GMC dealer to identify and fix the problem. I can't drive the vehicle in such condition, risking my life and life of other drivers on the road. The vehicle is parked in my Garage, it new vehicle just completed 1800 km. The the dealer the solution is very simple, either fix the issue, or replace the car or refund my money back, the dealer is not doing any of these. Before taking legal action and reporting it to the court, which will bring shame to GMC reputed brand. I though I'll give my final try to report it to you. You are the manufacturer may be have a solution. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Muscat, NY, USA

I recently purchased a 2024 GMC Sierra 1500. On July 14, 2025, I was informed of a recall involving the L87 engine and a risk of loss of propulsion. This is a major safety concern that can cause the vehicle to suddenly lose power while driving. I was advised not to drive the truck due to safety reasons, but GM has not released a fix or repair solution for this recall. This issue puts my safety and the safety of others at serious risk, as the vehicle could lose power without warning on the road. I contacted the dealership (Findlay Chevrolet, Las Vegas) and GM directly, but no timeline or resolution has been provided. I am now stuck with a vehicle I cannot legally or safely drive and no support from the manufacturer to resolve the issue. There were no warning lamps or prior symptoms before the recall was issued. The problem has been acknowledged by the manufacturer but remains unresolved. The vehicle has been inspected and the recall confirmed by the dealership, but they stated there is no fix currently available. I am requesting that NHTSA take this seriously and put pressure on GM to either provide a safe solution, a loaner vehicle, or a buyback program until the recall can be resolved.

- Las Vegas , NV, USA

Dealership is unable to remedy issue stated on recall notice in a timely manner, I stopped by today and they told me they can-??t do it right now and they have no idea when they will be able to so in the meantime drive it, to which I stated just drive it and if the engine fails on me then oh well? And they said yes there-??s nothing we can do right now. Ridiculous putting my family-??s safety at risk if the engine fails and they won-??t even do the inspections

- Merced, CA, USA

I received the vehicle recall from GMC and contacted my dealership to inform them I was having a lagging issue with power in my truck. I inquired if I can bring the truck in to have it looked at under the recall, but was informed that no remedy was provided, and I also have to wait until my VIN# came up for inspection which no date or time frame was available. The next question I ask was can I get a loaner vehicle based on the recall which can cause an accident with engine propulsion failure. The local dealership and GM failed to provide a loaner vehicle which I feel unsafe driving my current vehicle. I also asked the dealership if GM is willing to buy the vehicle back from me and yet again, no response. Local dealership is Heritage Buick GMC of Rockwall Texas.

- Rockwall, TX, USA

I am filing a formal complaint against GMC and R.B. Fries GMC regarding a catastrophic engine failure that occurred in my 2024 GMC Sierra 1500 Denali just over a month after purchase, with only 1,188 miles on the vehicle. The engine completely failed and had to be fully replaced. I contacted GMC and submitted a claim seeking a buyback or replacement under the Lemon Law and warranty protections. My claim was rejected, and I was offered no resolution, despite the seriousness of the failure and the fact that it occurred under normal use and well within the warranty period. This alone was unacceptable, but the situation has worsened. The truck is now experiencing additional issues, and I have scheduled an appointment with Eynon GMC (earliest available: June 23, 2025, scheduled through Karen). In the meantime, I am reaching out to other GMC dealers in hopes of getting service sooner, as I no longer trust this vehicle at all. This has been the worst automotive experience I-??ve ever had. I expected a reliable product and proper customer support for a brand-new truck, especially one marketed as premium. Instead, I am left with serious concerns for my safety and financial loss. All communication is attached, and I do have witnesses for my claims including phone conversations with service and sales. As of today, I was again told by a phone call from GM that they will offer me nothing. The dealer I purchased it from has not responded. The Truck if I can find someone to take it on a trade (as most are refusing-even GMC dealers) are offering over 10K less than paid.

- Archbald, Pa, PA, USA

I received a recall notice for my 2024 GMC Sierra Denali Ultimate (6.2L engine), related to defective lifters that can cause engine damage. My truck was built in April 2024, and I've been told by some sources that certain 2024s may have the updated lifters, but neither my dealership nor GMC will confirm whether my truck is affected or safe. I-??ve asked multiple times for VIN-specific confirmation of the engine components -?" no one has been able to tell me if my vehicle has the faulty parts or not. I was told to just keep using the oil they recommend or wait for a diagnostic tool GM hasn-??t even released yet. That-??s not enough. I-??m planning to take my family, including my grandchildren, on a long road trip soon, and I don-??t feel safe putting them in this truck without answers. For a vehicle that cost over $85,000, I shouldn-??t be left guessing whether the engine could fail on the road. I-??m filing this complaint because GM is not giving me a straight answer, and I think this is a serious safety concern.

- Montville, NJ, USA

I learned 2 weeks ago my 6.2L was part of the recall. I took a business trip in the truck with about 19,000 miles last week. I got home Friday noon. Truck was parked from Friday till this afternoon. Went to remote start it, it started, was misfiring and stalled, I could hear what I thought was a rod clanking. I got in the truck, started it with the start button, same thing. Had my 19yr old son start it with me laying on the driveway listening. It was clearly a rod or bearing making noise. I-??m fortunate this happened in my driveway and not on my hour drive Friday. Truck will be towed to dealer Monday 6/2, but I suspect this motor has failed with 20,000 miles for the same reason it was recalled.

- Montgomery, TX, USA

Manufacturer Recall Number N252494003 NHTSA Recall Number25V274 Recall Status Recall Incomplete, remedy not yet available Summary General Motors has decided that a defect which relates to motor vehicle safety of 2024 model year GMC Sierra 1500, equipped with the 6.2L V8 gas engine (RPO L87). The connecting rod and/or crankshaft engine components in these vehicles have manufacturing defects that can lead to engine damage and engine failure. Safety Risk When the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. GM HAS YET TO CORRECT THIS SAFETY ISSUE WITH MY GMC SIERRA. THEY HAVE FAILED TO CORRECT IN A TIMELY MANNER.

- Jacksonville , AR, USA

Friday, May23,2025, 5:00 pm Driving on interstate at 65mph, entering work zone as 3 lanes merged into 2. The vehicle slowing down to allow traffic to merge. Dash display said push start button again, no engine rpms, Pushed start button, nothing happened. The vehicle came to a complete stop. pushed button several times, attempted to shift vehicle into park and or neutral, Did not no what gear I was in. Dash display said not conducive to shifting at this time. After several attempts to restart truck, it did start. Put it in drive, accelerated past 65mph. vehicle died immediately. able to change lanes while coasting and got off highway. Never restarted, transmission locked and parking brake locked. Tow operator called, dragged onto flatbed, no wheels turning. Towed to Dealer. Potential for accident was very high, the vehicle had 4 passengers including a child. No warning what was about to happen an no clue what to do. Pre Memorial Day traffic including work traffic in construction zone. Is still under original manufacturer's warranty with a little over 11,000 miles. Dealer confirmed the Tuesday. May 27, 2025 the engine failure and contacted GM regarding the recall.

- Independence, MO, USA

On [XXX] this vehicle was in Blue Cruise on [XXX] in Louisiana when it without warning coasted to a stop after the engine quit. Cruise lights remained active, no other lights were illuminated, and the vehicle simply rolled to a stop. La. DOT assisted. The vehicle was towed (complicated that once placed into park, and the engine would not restart, the vehicle cannot easily be placed in neutral to be towed). The vehicle was trailered some ~50 miles and sits at Rainbow NorthShore GMC in Covington, La. This is a series, life threatening situation that all vehicles need be removed from the road. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6

- Mandeville, LA, USA

starting in June of 2024 at 6500 miles my truck started exhibiting loud exhaust drones and severe vibrations coming through the dash, floorboard and steering column on excelleration. The truck has been in repair 7 times in the past 11 months and multiple parts have been changed. I learned that there are thousands of General Motors 1500 trucks equipped with the 3.0 LZ0 Duramax diesel engine exhibiting the same symptoms. A General Motors Field Engineer found Broken exhaust bracket studs at the engine block caused by exhaust alignment and engine/transmission mount stress from worn components. These trucks are coming from the factory this way and continues with 2025 model year. My son owns a 2025 GMC AT4X 3.0 LZO and has the exact same symptoms.

- Allen, TX, USA

General Motors has decided that a defect which relates to motor vehicle safety exist in my 2024 model year GMC Sierra 1500 vehicle equipped with the 6.2L V8 gas engine (RPO L87). The connecting rod and/or crankshaft engine components in these vehicles have manufacturing defects that can lead to engine damage and engine failure. If the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash !!!! After contacting my local GM dealers, three of them, NONE OF THEM CAN OR KNOW HOW TO REPAIR THIS LIFE SAFETY ISSUE with my vehicle. Please direct GM to buy back my 2024 GMC Sierra SLT vehicle. v/r [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Jacksonville , AR, USA

Engine failed. Driving on the interstate and vehicle lost all power. Problem confirmed by Jim Glover Cheverolet. Engine inspected and confirmed by dealership. No warning at all.

- Bentonville, AR, USA