The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at 35 MPH, there was a metallic sound as if a bolt had fallen inside the engine compartment and was rotating and spinning. The vehicle was taken to the dealer, where it was diagnosed, and determined that the camshaft and the engine lifters had failed and needed to be replaced. The vehicle was not yet repaired. The contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling) and NHTSA Action Numbers: EA25007 (Engine, Engine and Engine Cooling) and RQ26001 (Engine). The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance because the VIN was not included in the recall. The failure mileage was approximately 116,000.

- Humboldt, TN, USA

Belt tensioner/idler pulley began chirping during warm up after starting engine. Noticed serpentine belt was beginning to fray on edges. Dealership confirmed the pulley failed prematurely and caused the serpentine belt to be damaged. Dealership replaced pulley and belt. It was just after warranty expired. The belt is supposed to be replaced at 100,000 miles as routine maintenance, but the failure of the pulley, which the dealer informed me was also premature, but common, was not covered under warranty. Power steering was lost one time in park and a message showed on the dash, but went away after restarting the vehicle.

- Townsend , GA, USA

I bought this Truck in December 2023 from Honda of Ocala as a used vehicle it had 59,000 miles when I bought it. In October 24 it started smoking from the exhaust one morning as I was leaving work. I have always changed the oil on time and taken good care of the truck. I found out the lifters had failed and Honda of Ocala replaced all of my lifters on both sides around $4,000 in repairs the truck was at 73,000 miles at this time. A few months after getting it fixed the truck started smoking again and going into limp mode at 81,000 miles. I still owe $30,000 on this truck but can-??t afford to keep fixing it and can-??t afford to trade it in and go negative on it.

- Cross City, FL, USA

I just bought this truck off a used car lot certified dealer and I noticed the engine light on then the truck would hesitate to start and I know the battery is dying so I looked it up and I got a recall on 2021 Chevy Silverado just like mine just wondering why mine is not under recall or why won-??t mine get fixed but everybody else is the same year in the same problems can get fixed. I think mine should be fixed.

- Walton, KY, USA

Good morning, While driving and starting my Chevy Silverado 1500 with 3.0 durmax it will suddenly go into a -??limp mode-?? reducing speed and power. Recently while driving on a highway it reduced engine power causing the vehicle to slow down suddenly with many cars speeding by. This caused me to try and pull over the vehicle and avoid hitting other vehicles. When pulling codes off the vehicle there is a p1098 which refers to the engine coolant control valve. This will cause the vehicle to do the described power reduction. Upon researching the issue Gm has recognized and released a special coverage to fix the issue. N252508341. However my vehicles VIN does not pull up the coverage. All the characteristics of the coverage seem to fit the model and issues I have. It-??s the same year, model, engine, etc. I-??ve attached a DOT report of the special coverage. I-??m hoping this will help fix my vehicle and others with this same issue. Although it-??s not specifically listed as a safety recall, I feel the cause of the sudden power reduction is known by Gm and warranty issued and the problem should be resolved for all vehicles with this issue. Thank you!

- Dade City , FL, USA

Check engine turned on and at the same time the vehicle turned into safety mode abruptly, it slowed down to 10 miles an hour while on the high way and receiving a message stating that the "engine power reduced", the issue was presented to the dealership and they believe to be fixed with a sensor issue, the light came back on a few days after the initial repair and once again the engine lost power while driving the vehicle, the vehicle was then taken back to the dealership for repair once again, both times I mentioned the service bulletin, which they did not consider in their repair, stating that the issue was specific for a code (which all codes present are in the service bulletin) the 2nd repair was done on a actuator, which they stated should fix the issue, and did not, a 3rd time the vehicle lost power while hauling a trailer, this time I brought up the concern of them not reviewing the service bulletin, this time they confirmed that the service bulletin was the issue causing the check engine light (GM service bulletin no: 21-NA-149) now they are looking to slowly start repairing the issue and wait for the check engine light to turn on again to then go back and forth and review step by step the instructions in the bulletin.

- Glendale, AZ, USA

As I was driving my 2021 Chevrolet z71 pick up I had a warning light appear on the dash indicating the safety traction control system was faulty, at the same time my truck had a loss of power as if it was not operating on all cylinders. I could hear some strange noises that were not normal, at the same time my transmission was shifting abnormally. I managed to drive to a dealer and was told it was a collapsed lifter on cylinder #5 this occurred out of no where, I was informed what took place could have damaged the camshaft and I could be looking at a repair cost upwards of $5,000 and the service writer indicated this has been an ongoing issue with the 5.3 liter engine. My truck has been serviced at the dealership it was purchased from, and all oil changes have been performed within a reasonable window from when oil changes and service inspection has been recommended by General Motors.

- Coldspring, TX, USA

6.2L L87 V8 engine experienced catastrophic engine failure do to lifter failure and a cylinder 8 misfire. Causing additional damage to camshaft. The dealership has inspected the vehicle and refuses to acknowledge the problem as there own. I have invoices for the work if I choose to proceed. Incident occurred while driving on the freeway, complete lose of power and control. This engine is known for this exact problem yet I never received a recall.

- Phoenix, AZ, USA

At 46000 miles the motor was replaced because of an internal oil consumption issue after the motor was replaced at 1500 miles the motor locked up while traveling down the road they rebuilt this motor. I went to go pick it up. Drove it 20 miles and oil was blowing out the rear main seal. after this, I sold the truck back to Gwatney Chevrolet and purchased a 2024 model with a 6.2 L I have not had any problems yet.

- Beebe, AR, USA

Starting back in June 2025 Loss of engine power multiple times. Many times almost hit from behind as I turned onto a highway. Found out vehicle had a stop sale recall at the time of purchase and I had issues with back right tire. Took truck to a tire shop and learned that the wheel was welded in many places and fracture was visible. Finally, got the dealership to pay attention in October to my concerns. They were going to allow me to trade the vehicle out for another one while paying off the bank but that-??s not what they did. They attempted the repair and tried to hand it back to me. 1/27/26 Was recently told this was corrected, and the sales person told me when he picked it up from shop he couldn-??t go more than 30 mph. Dealership management told him not to tell me. I am submitting this complaint for immediate review regarding Ruiz Ranch Motors (Spring Branch, TX) for an illegal vehicle sale, prolonged withholding of my vehicle, misrepresentation of a -??loaner-?? vehicle, and coercive threats involving law enforcement. This matter involves ongoing safety risks, financial harm, and improper dealer conduct affecting both myself and my minor child. Summary of Key Facts (Concise): -?? On June 25, 2025, I purchased a 2021 Chevrolet Silverado (VIN 1GCUYHET7MZ155657) from Ruiz Ranch Motors, financed through Ally Financial. -?? The vehicle was subject to a GM Stop-Sale / No-Sale Safety Recall (NHTSA 24V797000) at or around the time of sale. -?? I repeatedly raised safety concerns beginning shortly after purchase. These concerns were dismissed for months. -?? In November, Ruiz Ranch Motors took possession of my 2021 Silverado under the representation that they were -??working on trade numbers-?? and a solution to correct the experience. Misrepresented -??Loaner / Trade-?? Vehicle: -?? I was provided a 2023 Chevrolet Silverado, represented as a potential trade option, no trade was made (only dealership delay) this vehicle now has a engine light and no cooperation from dealership

- Spring Branch, TX, USA

I own a 2021 Silverado 1500 6.2 v8. Since October of 2025 this truck has been in and out of the dealership. First engine (Oct. 24, 2025) issue as my teen driver was on the expressway and luckily was able to get off and get safely to an unknown persons driveway. Then the motor seized and died as we tried to drive it home. A friend was able to tow it to our driveway and GM sent a tow truck to pick it up and haul to the dealership. The truck was in the dealership for 2 weeks prior to the first engine failure and "EVERYTHING WAS FINE". Nov 26, 2025 new engine comes in. December 12th SECOND motor was put in and FAILED as cylinder 7 had no compression. Dec 31, 2025 picked up my truck with the THIRD motor. Jan 14, 2026 took the truck back AGAIN for engine ticking, noise, loss of propulsion/speed, running sluggish. Dealer kept it until Jan 21, 2026. Dealer said they drove it and the noise is normal injector noise. They did nothing other than drive it. They will not investigate any further as it wasn't pulling codes or warning lights. It is still not running right and I'm waiting for it to have a major failure. It is not safe to drive. The first motor did not show any warnings either. GM really needs to get this figured out soon. No vehicle with 52,000 miles should have 3 motors put in it. This is not quality work and concerns for safety are real.

- South Lyon, MI, USA

Lights appeared on dash, brought to the dealership. Dealership states engine damage due to valve train and a remanufactured engine was installed. This was approved by us for a $2000 charge. This charge included new manifolds, water pump, fuel pump and all associated gaskets

- Windsor, CT, USA

I am the owner of a January 2021 6.2 liter Chevy Silverado 1500. I have had multiple issues with this vehicle. Oil pressure control solenoid, many no starts, failure to starts, engine lights, oil lights. Truck started to use an excessive amount of oil before scheduled oil changes. The engine sometimes hesitate and fails to accelerate. The engine became noisy. My mechanic started that the engine is noisy and the oil pressure is at 15 lbs. They said it will need a replacement engine that is not covered under my expired power train warranty. The mechanic stated it's not a matter of if it will go, is a matter of when We are a family of 5 and this is our family vehicle. We feel very uncomfortable driving this vehicle with our family knowing the engine is going to fail at any time while driving. This is a heartbreaking expense that I don't believe that we should have to pay for. We have always maintained our vehicle and have never abused it.

- Angola, NY, USA

Jan 2024 lifters on one side went out. Towed to dealer and had repaired. 9 months later lifters went out again. Had private shop repair it. Less than 3 months later, motor went out. Paid out of pocket to have new motor shipped and repair shop fixed it. A few months later, GM put out the safety recall for 6.2L engine failure.

- Lubbock, TX, USA

The vehicle had originally stopped in a moving lane of traffic. It was towed to a dealership and the engine was rebuilt with a remanufactured engine. The engine idled rough and seemed to be misfiring. The check engine light kept coming on. The dealership stated the vehicle was repaired and I picked it up. The engine is worse. It idles rough like before. It is rough while driving and the check engine light continues to come on. I am about to return the vehicle for the third time before it stops in the roadway again.

- Houston, TX, USA

Dealer did the L87 6.2 Recall (basically changed the oil to 0w-40). Based on the -??clean bill of health-?? we towed our Imagine trailer to Tucson. Stayed for 3weeks over Thanksgiving and then started back home. We then towed it back home to Fort Collins and when we reached Denver the check engine light came on and within seconds the engine stopped. We had to coast off the freeway and ended up on an interstate interchange ramp (blind and dangerous). The motor was seized completely. Oil pressure and temps were all normal before the engine stopped. Oil was super HOT when I checked it. After a big adventure dealing with getting the truck and trailer to a safe place via a tow from OnStar, they towed the truck to the nearest dealer. I had to rent a UHaul truck to tow the trailer home (another 80 miles or so) with wife, two dogs and myself crammed in the cab. The dealer got Chevy to cover the engine replacement but I was out $200 for the trailer tow to safety and another $200 for the U-Haul rental. Chevy would not cover that.

- Fort Collins, CO, USA

Component that failed: The valve train system failed due to collapsed lifters in the GM 5.3L L84 engine. The lifter failure caused internal camshaft damage requiring major repair. The failed components were removed by the Chevrolet dealership and should be available through the repair facility if inspection is requested. Safety risk: The engine failure caused a sudden and severe loss of power while driving. The vehicle would not accelerate beyond approximately 45 mph on a 65 mph roadway while en route to the dealership, creating an unsafe speed differential. When attempting to accelerate to pass another vehicle on a two lane road, the engine backfired and immediately throttled back, making it unsafe to complete the pass. The check engine light illuminated at the exact moment the vehicle lost power during the passing attempt. This sudden propulsion loss during an active maneuver created a hazardous driving condition. Dealer confirmation: An authorized Chevrolet dealership diagnosed collapsed lifters which damaged the camshaft and confirmed this as a known failure pattern in GM L84 engines. Inspection by others: Vehicle was inspected and repaired by the dealership. No accident occurred, so no police or insurance inspection was involved. Warnings or symptoms: No prior warning lights appeared before the passing event. The check engine light came on during the failure while accelerating. Additional context: This failure aligns with widely documented lifter collapse defects in GM 5.3L L84 truck engines. The breakdown was not caused by maintenance or wear and tear but by premature internal component failure known across this engine platform.

- Rockwall, TX, USA

Warning lights came on at approximately 46000 miles. Brought to dealer for faulty lifters. One week later they decided that the lifters had damaged the cam and now the dealer wants to replace the motor.. Unfortunately for us the dealer has no car that we can use, so we had to rent a vehicle. Hopefully it will be ready in 2 weeks. That will make it four weeks with out a vehicle

- Windsor, CT, USA

Most mornings after starting truck and driving off, it appears to be a hesitation or brief loss of power. Issue has been present for several years. It's hard to determine if it's engine or transmission issue. Truck is available for inspection. It usually occurs when leaving house in the morning so there is no safety issue because it happens within the first minute of driving. No warnings, cannot recreate issue.

- Montgomery, AL, USA

I have a 2021 Chevy Silverado 6.2 engine. The recall that has been sent out for most of those engines I have experience the same damage to my truck engine. Connecting rod/ crankshaft engine failure. But my vin is not in the system for the recall. Can someone have a engineer look into more of these engines especially my engine vin. I was driving and all of sudden my dash lite up saying I have reduce steering. Took it to the shop and I was told that my engine needs major repairs. I have a really nice truck and it can be a show truck and for the engine to just go out because of bad manufacturer parts is not right I also had my kids with me. Please help

- Lawtey, FL, USA