2024 GMC Sierra 1500 complaints

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!!

Transmission failed during acceleration leaving me in the middle of intersection almost hit by a semi truck that had to slam breaks. Then final shifted and redlined 6 times before shifting. Then proceeded to limp mode

The contact owned a 2024 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the low oil warning light illuminated. After a visual inspection, the contact observed that the engine was abnormally low on oil, though the vehicle had recently been serviced. The vehicle was taken to an independent mechanic, who did not provide a specific diagnosis but observed metal shavings inside the oil filter. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); the VIN was included but the vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 16,000.

My wife and I were traveling on a county road and without warning, the vehicle skipped twice and cut off in the middle of the roadway in a sharp curve with rain threatening at approximately 7:30 p.m. ET August 11, 2025. I attempted to restart numerous times because we were in the middle of the right lane. The starter would spin but vehicle would not restart. The truck then would not shut off and draining the battery. I called for a wrecker and the Sheriff's Office to keep somebody from hitting us. Before the wrecker came, we connected a diagnostic device to the vehicle indicating it was the fuel pump module.0August 12, 2-25, I called GM Roadside Assistance to be towed to closest dealership. The driver said he was familiar with a lot of GM trucks with the same issue. The vehicle has less than 12,000 miles and was purchased in June, 2024.

The contact owns a 2024 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that while driving at various speeds, the engine made an abnormal sound. No warning lights were illuminated. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 11,000.

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.

The contact owns a 2024 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact was concerned that the failure could occur and that the parts were not yet available. The contact stated there was a lot of pressure and worry about what might happen should the failure occur. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the concerns. The contact had not experienced failure.

The contact owns a 2024 GMC Sierra 1500. The contact stated that while attempting to reverse out of a parking space, the transmission failed to respond while in reverse. Additionally, the vehicle operated in LIMP Mode. The vehicle was driven in LIMP Mode to the nearest dealer, who diagnosed the vehicle and determined that the transmission valve body was faulty and needed to be replaced. The transmission valve body was replaced. The vehicle was towed back to the residence from out of state. The manufacturer was notified of the failure. The failure mileage was 6,400.

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

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

The contact owns a 2024 GMC Sierra 1500. The contact stated that while idling in the driveway, the steering wheel became inoperable. Additionally, the contact stated that after parking the vehicle, the vehicle failed to start. There was no warning light illuminated. The vehicle was towed to the local dealer, where it was diagnosed that the power steering control module(PSCM) needed to be replaced and reprogrammed. The vehicle was repaired, but the failure recurred while driving away from the dealer. The contact stated that the steering assist warning light was illuminated, and the message "Stop Driving" was displayed. The vehicle was taken back to the same dealer, where it was determined that the steering rack and pinion needed to be replaced; however, the parts were on backorder. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 5,754.

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 taki

The contact owns a 2024 GMC Sierra. The contact became aware that the VIN was included in NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The dealer was contacted and confirmed that parts were not yet available for the recall repair. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2024 GMC Sierra 1500. The contact stated that while her husband was driving 55 MPH, the driver’s hand touched the tailgate button, and the tailgate opened. The contact was concerned about the items in the rear falling onto the highway. The driver pulled over and secured the items in the vehicle. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 2,000. The VIN was not available.

GM is recommending that I replace my brakes for the 3rd time within 30,000 miles but cannot explain the irregular wear. I am confident that there is a larger issue causing this is the brakes failing are just a symptom of a larger issue that have failed to address after 6 dealership visits, escalating (twice - due to first advisor never getting back to me) to GM customer care, emailing an executive, regional service manager, and countless hours to fix the safety issue of my brakes (and the larger root cause issue). GM Customer Care Case #[XXX] - BRAKE SAFETY ISSUE 2024 GMC Sierra AT4 (VIN: [XXX]) - 46,000 miles Nov 2023: 1st visit - Brake squeal at 25K. Pads replaced, GM denied warranty. Early 2024: SAFETY ISSUE RETURNED at 30K miles. May 2025: 2nd visit - Worsening brake noise. Dealer couldn't replicate despite video evidence. Recommended $500 repair. Manager acknowledged "irregular/abnormal" wear. June 2025: 3rd & 4th visits - Tech found unexplained "weird line" on pad. Manager Kyle confirmed unusual wear but no root cause identified. June 10: Opened GM case #[XXX] after dealership failures. July 7: GM failed to coordinate promised appointment. July 14: 5th visit - Les Stanford Buick GMC, Ferndale. Tech rode with me, CONFIRMED BRAKE SAFETY ISSUE but offered no solution. CRITICAL SAFETY CONCERN: Recurring brake defect with abnormal wear patterns acknowledged by multiple technicians. Same brake failure pattern occurring 3 times in 18 months poses serious safety risk. Despite 5

The contact owns a 2024 GMC Sierra. The contact received a notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2024 GMC Sierra 1500. The contact stated that after driving the vehicle for 20 minutes, the contact would feel significantly weaknand would faint. The contact later noticed that water was leaking from the windshield, which led to a mold infestation. The vehicle was taken to the dealer, and the contact provided a video of the leaking windshield to the dealer; however, the dealer informed the contact that the failure could be duplicated, and no issues were found. The vehicle was not diagnosed or repaired. The contact stated that the Aerotech company had confirmed the presence of mold in the air filter. The contact stated that she had a genetic predisposition to mold, and the mold infestation had caused the contact to sustain swollen sinuses, rashes, hives, to feel tired and to faint at times. The contact sought medical assistance, and the contact's Doctor provided a document that stated that it was unsafe for the contact to operate the vehicle due to the mold. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 10.

2024 GMC Sierra 1500. While driving approximately 75 MPH, the front chrome grille deflector came loose from the passenger side of the vehicle and started flapping. Before I could safely pull over it became detached and flew over the hood of the vehicle striking the front windshield before nearly hitting another moving vehicle behind me. This caused damage to the hood, the other driver did not stop. While the 2024 model vehicle is not listed in NHTSA Campaign Number: 25V060000 (STRUCTURE) recalled on the 2022 model, GM lists the same part number for the 2022-2024 models, therefore the recall should include these years as well. The failure mileage was 27,500.

The contact owns a 2024 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); however, the part to do the recall repair was not yet available. The local dealer was contacted, and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

There is an active recall regarding the safety of my vehicle. NHTSA: 25V274 Manufacturer: N252494000 I contacted GM and was told to see a dealer to have my engine replaced. The dealer is refusing to remedy the recall and pointed me back to GM stating that "GM told us not to service this recall because there isn't yet a remedy". I'm stuck with a very unsafe vehicle that is less than 1 year old and the manufacture is refusing to honor their own recall.

The contact owns a 2024 GMC Sierra1500. The contact received notification from the OnStar App regarding NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and informed the contact that the vehicle could not be repaired. The manufacturer was made aware of the issue and stated that no assistance would be provided until an authorization letter was sent to the contact for the recall repair to be performed. The contact had not experienced a failure. Parts distribution disconnect.

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.

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

The contact owns a 2024 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The dealer was contacted and confirmed that the parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

Trailer Brake Controller displays message on Dash intermittently that the trailer brakes are disconnected, and after a short pause it will say reconnected. This occurs multiple times a day. This did not occur with my previous GMC. I do have solar panels and Lithium batteries

The contact owns a 2024 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2024 GMC Sierra 1500. The contact stated while driving 45 MPH, the low fuel warning light, the forward collision avoidance warning light, the check engine warning light and other unknown warning lights were illuminated. The message "Steering Assist Reduced" was displayed. The contact stated that the vehicle lost motive power. The contact was able to pull to the side of the road. The vehicle failed to restart and was towed to the dealer to be diagnosed, but the dealer could not determine the cause of the failure. The contact stated that the failure recurred while driving. The vehicle was towed to the dealer, where it was being diagnosed. The vehicle was not diagnosed or repaired. The contact related the failure to NHTSA Action Number: PE25001(Engine, Engine and Engine Cooling) and NHTSA Campaign Number: 25V274000(Engine and Engine Cooling). The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 20,000.

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.

Intermittently there isn't any sound from informational center speakers, this includes not sound of the turn signal indicators working. No sound from any vehicle component, vehicle has the current software release from GM. the only way I've found to get sound again is to leave the vehicle set not running for some period of time, short off then back on doesn't seem to clear the issue. I've check with the dealer and from what I understand this is a known issue with 2024 & 2025 GM informational centers.

The contact owns a 2024 GMC Sierra 1500. The contact stated that while attempting to start the vehicle, the engine failed to turn over. No warning lights were illuminated. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted, and AAA arrived, and the vehicle was jump-started. The vehicle was taken to a local dealer where the vehicle was diagnosed and determined that the engine needed to be replaced. The vehicle remained at the dealer awaiting parts. The vehicle was not repaired, and after several weeks, the contact was advised that the vehicle could no longer remain at the dealer. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 19,300. VIN tool confirms parts not available.

The contact owns a 2024 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

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

Subject: Urgent Safety Complaint Dear GMC Customer Service, I hope this message nds you well. I am formally reporting a serious safety issue with my GMC vehicle. The car has experienced multiple dangerous incidents due to likely electrical or software faults, losing power suddenly on two occasions while driving. This is especially concerning given the low mileage of 20,000 km and that the vehicle is still under warranty. Vehicle Information: • Model: GMC Sierra SLE, 2024 • VIN: [XXX] • Current Mileage: 20,000 km Description of the Problem & History: 1. First Incident (At 3,000 km): o The vehicle completely shut down due to an electrical or system software issue while driving. o The vehicle was towed to the dealer and held for over two weeks for repairs. 2. Second Incident (Recently): o The vehicle again lost functionality; the gear was stuck in 1st gear, and I was unable to manually shift. o This occurred while driving, creating another unsafe situation. o The vehicle was again taken to the dealer for repair, and to date, I have not been informed of the root cause. Actions Taken: The vehicle was brought to Sarhan, UAE (Sharjah), Al Ghandi Auto after the rst incident. Despite inspections and repair attempts, the issue has recurred, indicating it was not resolved. And I am prepared to provide photographic or video evidence if necessary. Additional Context: • The vehicle is less than one year old and has been regularly serviced on time at authorized centers. The recurring issues

Subject: Urgent Safety Complaint Dear GMC Customer Service, I hope this message finds you well. I am formally reporting a serious safety issue with my GMC vehicle. The car has experienced multiple dangerous incidents due to likely electrical or software faults, losing power suddenly on two occasions while driving. This is especially concerning given the low mileage of 20,000 km and that the vehicle is still under warranty. Vehicle Information: •Model: GMC Sierra SLE, 2024 •VIN: [XXX] •Current Mileage: 20,000 km Description of the Problem & History: 1.First Incident (At 3,000 km): oThe vehicle completely shut down due to an electrical or system software issue while driving. oThe vehicle was towed to the dealer and held for over two weeks for repairs. 2.Second Incident (Recently): oThe vehicle again lost functionality; the gear was stuck in 1st gear, and I was unable to manually shift. oThis occurred while driving, creating another unsafe situation. oThe vehicle was again taken to the dealer for repair, and to date, I have not been informed of the root cause. Actions Taken: The vehicle was brought to Sarhan, UAE (Sharjah), Al Ghandi Auto after the first incident. Despite inspections and repair attempts, the issue has recurred, indicating it was not resolved. And I am prepared to provide photographic or video evidence if necessary. Additional Context: •The vehicle is less than one year old and has been regularly serviced on time at authorized centers. The recurring issues strong

The top front grill became detached at highway speeds

The instrument cluster shorted and was blank with no access to any gauges or speedometer. No functionality

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.

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.

Vehicle jolts forward when coming to a complete stop causing vehicle to move forward unintentionally.

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.

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.

The contact owns a 2024 GMC Sierra 1500. The contact stated that while driving 70 MPH, the top grille cover detached from the vehicle. The contact immediately proceeded to pull over and used a zip tie to the secure the grille cover. There was no warning light illuminated. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 35,000.

I was going home after work on labor day, when l heard a noise on my roof. I opened the sunscreen window and l heard what sounded like a gunshot and the sunroof exploded raining down glass on my face.

New truck with only 5K miles had the check engine light come on. Sluggish/low acceleration and unable to put into reverse. Towing required to service center.

Transmission valve body failure 10,672 miles ..

The contact owns a 2024 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

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

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.

I was traveling on the interstate, going a little over 70 MPH as I was passing a tractor and trailer. There were no other vehicles in front of me. Suddenly the truck jerked like the breaks were being applied and my speed was quickly reduced to around 60 MPH. The heads up display showed a crash alert orange symbol. I pushed the gas to try to get back up to speed but the truck would not accelerate and the speed kept dropping. I pulled over to the berm and came to a stop. There was a message on the message center but it went away before I could read it with everything else happening. I put the truck in park and waited a minute then I pulled back out and was able to get the truck back up to speed and home. I plan to contact my dealer tomorrow. The ruck was involved in an accident that damaged the front in earlier this year so I believe some or all of those sensors have been replaced. This is the first issue we’ve had since purchase. If there would have been a vehicle following behind me, the rapid breaking/deceleration could have caused an accident. Also the inability for me to regain my speed when traveling on an interstate was a danger to myself and others.

TWICE in the past month +. On [XXX] my wife and I were on our way to a family wedding and I was driving approx 75 MPH on [XXX]. I don't recall if I had cruise control on or not as I rarely use it. There was no vehicle was in front of me for hundreds of yards yet all of a sudden the vehicle started to brake very hard. I accelerated as I did not know what was going on and I had a car in back of me that started to gain. THEN last Friday ([XXX}) with my wife following me in her car on [XXX] through Ellicott City MD I was traveling at approx 25-30 MPH through a very small historic town when all of a sudden the same [XXX] thing happened. DEF no CC on . When we got to our destination I asked my wife if she saw my brakes come on suddenly?. She replied yes and said she saw the truck dip hard. I told her the brakes did it again. She said I should call the dealer. I did not as they are USELESS! THEN the electronics. On Star has a catalog of my complaints. The radio selections I make just disappear from the screen: Apple Car Play disappears from the touch screen and just goes dark. I have to stop the truck..(per on-star) open the door.. get out.. lock it.. wait 2 minutes.. get back in .. restart the truck, and this re-sets the computers(s). RIDICULOUS! I do not have Sirius but the radio goes dark often for about 2-3 seconds., then comes back on. I was told it is my I-Phone is causing this. [XXX]! What does my phone have to do with AM/FM radio?? I was told by GMC there is a patch to updat