Around July 1st, 2025 I was hearing a ticking sound when taking off from a stop. On July 11th I had an oil change completed on the truck at the Local Chevy dealership, after the oil change, I mentioned the noise and was told maybe we could schedule some sort of deep cleaning of the internal components of the engine. After leaving the dealership after the oil change, I was still hearing the ticking sound. I then scheduled an appointment on July 22nd for the dealership to look into the ticking sound. I drove the truck to the dealership and it was working fine; other than the ticking sound when the RPM-??s were at 2200. At no time was there any warning lights that came on to alert me to a problem. After approximately 30 minutes of waiting in the customer waiting area, the service advisor came and got me and said -??we have big problems-?? and they were going to need the truck longer to look into it. I walked out to the service bay to get some personal items out of the truck. At that time, the mechanic pointed out some white looking fluffy cotton material and said that just came out the end of your exhaust. I had never seen that material prior to this appointment on July 22. The dealership called me July 24th and told me that the engine and exhaust system need to be replaced. They told me that the bottom end connecting rod came apart, and went through the engine and the exhaust system while it was at their facility on July 22. This truck has the 6.2L V8 (RPO L87) gas engine-??. This truck is a 2021 and there is 76,957 miles currently on it (7/24/2025). With a blown engine, and an exhaust system that needs to be replaced.

- Rapid City, SD, USA

Went to accelerate through an intersection and the engine seized up in the middle of the intersection. Complete loss and of engine propulsion. Had to be towed. Could have caused an accident. No warning signs. Truck was running great until it wasn-??t running at all.

- Madison, OH, USA

Purchased a 2021 Chevy Silverado in Dec 2020. At 4600 miles had first engine failure requiring lifters and tie rods to be replaced, bank 1/Cylinder 5. Looking back this repair was a bandaid for an engine (6.2L) with problems known to GMC. On May 3, 2025 @ 79,000 miles truck started making loud noises and all dash lights started flashing including engine lights while driving, dangerous because we were on a busy roadway. Pulled over to shoulder and had towed to dealership. Diagnosis was a crank bearing failure, scored cylinder, push rod bent and lifters were damaged. Engine is not repairable. Here we are just short of 3 months and still no truck, no ETA on replacement engine. Even though our Silverado is a 2021 it is not part of the current GMC recall because the engine was manufactured in 2020. We know that NHSTA is investigating 6.2L engines for years 2019 and 2020 and urge NHTSA to broaden the current recall. Our truck was our only vehicle and the expenses we have incurred through no fault of our own are a strain on our budget, we are retired and on a fixed income. This is our 2nd Complaint filing on our truck to provide NHSTA with additional information.

- Blanchard, ID, USA

P0016 camshaft position not plausible Service manager at Loftons Chevrolet in Henderson Tn states that truck needs a new motor but not covered under recall

- Henderson, TN, USA

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 75 MPH, an abnormal boom sound was heard coming from the engine. The vehicle failed to accelerate as intended while depressing the accelerator pedal. The contact stated that the engine seized. The check engine warning light was illuminated. The vehicle was towed to the local dealer and was diagnosed with crank shaft sensor failure. The contact was later informed that the engine had failed and needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was contacted. The failure mileage was approximately 85,000.

- Charlotte, NC, USA

Losing power while driving and acceleration and uneven idle sometimes

- Quinlan, TX, USA

July, 10 2025 My 2021 chevy Silverado has stalled today in the middle of the road. When trying to start, it sounds like if it wants to turn over but it won-??t. I bought a brand new battery and problem is not resolved. I did some digging and sounds like fuel pump will not come on. This truck is only 4 years old and I should be having these issues. Please help thanks

- Liverpool, TX, USA

My truck is experiencing what is commonly known as the Chevy shakes. Whenever the transmission goes over 2000RPM or below 2000RPM my truck jumps. Also, the rear wheels lock up for a short time while I start driving for about 50 feet. Almost as the brakes are pressed slightly.

- Youngsville, NC, USA

My vehicle has almost 53,000 miles, I went for an oil change, hasn't even been 5,000 miles since last one, and I had no oil on the dipstick. I wanted to get it changed before a short trip. Glad I did. This could have caused the engine to blow up. I didn't know new vehicles could lose oil like that. The problem was confirmed by an independent oil change station where I always go. No inspections have been done by anyone. No warning lights came on telling me that the oil was low. No other issues prior to this.

- Flat Rock, MI, USA

While towing a trailer on a highway during a trip, my truck experienced a catastrophic engine failure with no prior warning. I was driving at highway speeds when the vehicle suddenly lost all engine power, creating an immediate and dangerous situation. I had to use extreme effort to steer the truck and trailer off the road and onto a narrow shoulder. There was no safe breakdown lane, and we were stranded for over eight hours waiting for assistance. Due to the size and weight of the trailer, the truck and trailer had to be towed separately, further complicating the situation. The vehicle was towed to the nearest Chevrolet dealership, where it was diagnosed and confirmed that the engine failure falls under the ongoing 6.2L V8 engine recall. The dealer stated the engine must be replaced under the recall. Unfortunately, that was over eight weeks ago, and I have still received no timeline, no updates, and no meaningful support from either the repairing dealer or the selling dealer (which is located three hours away from the incident site). Since then, my vehicle has remained undrivable, and I have had no access to alternative transportation. I was offered a reimbursement of $44 per day toward a rental car, but the process requires me to pay out-of-pocket and submit extensive documentation for potential reimbursement. Without knowing how long the delay will be, this could result in thousands of dollars in unreimbursed costs, which is simply not sustainable for me. This situation not only created a serious safety risk during the initial breakdown but has left me without reliable transportation for two months, with no indication of when my truck will be repaired. The lack of communication and accountability from GM and its dealerships is unacceptable given the known defect.

- Schwenksville, PA, USA

Failure of the coolant flow control valve and DEF component. Caused the engine to overheat and potentially fail while driving. The part to repair this problem has been very difficult to obtain causing a prolonged period of time in a repair shop. According to online forum information this an ongoing problem with this particular engine for over 4 years now. In my general area there are 6 vehicles that are in need of this particular part before they can be repaired. This is definitely not an isolated incident.

- Baton Rouge , LA, USA

While traveling at highway speed an engine lifter collapsed and I was left stranded with a flashing check engine light, severe engine knocking and lack of power.

- Salem, UT, USA

Check engine light is on, code reads emissions fail due to the Evaporative Emissions leak detection pump.( EVAP PURGE PUMP UNDERSPEED) P1467. I see this was a recall on several Chevrolet vehicles but not yet on mine.

- Fort Myers , FL, USA

Engine siezed while on a roadway that speed limit was 75 miles per hour. Was also actively pulling a trailer. Luckily avoided traffic in pulling off to the side of the road and was stuck there for about 8 hours on the side of the road. It broke down 5 hours from home.

- Burlseon, TX, USA

1st incident cracked frame/suspension support for front suspension, 4 months to fix, 2nd incident oil pump, lifter failure, replaced under warranty. 3rd failure engine sieze while driving at 55-60 mph. Warning light flashed loss of oil pressure shut down immediately, put it in neutral to coat to side of road but moment I shifted to N engine failed, had to tow home cuz dealer was a month out to look at it, had to send to a different dealership 60 miles away to get looked at, confirmed castrophic engine failure, GM dealer wanted me to pay to fix it. I have had 2 major engine issues, 1 major suspension frame issue.

- Williston, ND, USA

The Vehicle that I own is a 2021 Chevrolet Silverado 1500 with a 6.2 liter engine. on 6/2/2025 i went to have the oil changed and the service technician informed me there was no oil in the engine. He also informed me that this particular model with the 6.2 liter engine had a recall relating to components in the engine. After researching I found that there was in fact a recall, but my truck was not listed on the NHTSA web site. I made a visit to the local dealership and the service manager informed me that there was in fact a recall but there was nothing they could do at this time. He suggested that I check the oil level every 500 miles and wait on a recall notice. Now the engine is starting to make internal noises that concern me greatly. There is a opportunity that the engine could simply lock up and there is no certainty on what might happen. Please advise

- Murfreesboro, Tn, TN, USA

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while leaving a parking spot and driving approximately 5-10 MPH, there was an abnormal knocking sound coming from the engine before the vehicle lost motive power. There were no warning lights illuminated. The vehicle was towed to the local dealer and was diagnosed with engine failure. The vehicle was repaired. The contact stated that the vehicle had experienced catastrophic engine failure two years prior to the recent failure. The manufacturer was contacted and informed the contact that the VIN was not under recall. The failure mileage was 20,000.

- Beach City, TX, USA

I am facing my second coolant control valve replace in the last 10k miles. The truck errors with a code of P1098 due to the valve failure and the fan continues to run. My truck was then put into limp mode. This valve is a know problem with this motor and not cover under warranty.

- Emmett, MI, USA

I was on my way home from work on [XXX] coming around the lakes with no median or shoulder when the engine in my 2021 Silverado started rattling, temperature gauge started going up, and losing power. Within a matter of minutes my truck shut off leaving me stranded in the middle of a four lane highway with no safe location to stop. The engine wouldn-??t even turn over to try and crank back up so I could get the truck out of the road. After help getting my truck to a safe location I noticed oil and antifreeze leaking out of the bottom side of the engine. This truck was at Love Chevrolet for engine failure on 8/14/24 and was told it was fixed and was never told about ongoing issues with this particular 6.2 engine. I found out a few weeks ago while trying to trade my truck in to Jim Browne Chevrolet dealer that my particular truck the 2021 Chevrolet Silverado High Country with the 6.2 engine had known issue with the engine locking up and was afraid to take my truck in on trade due to his service manger going through this same experience. So I paid top dollar for a high end Chevrolet truck to be stuck with not being able to trade it and now not being able to drive it. I called the dealer and was told that my trucks vin number was not part of the recall for this issue but there are trucks that are the same year, model, and engine type that are covered under this recall. I-??m now stuck making a 850 a month payment on a 58000 dollar truck that I can-??t drive and can-??t afford to replace an engine. Any help would be greatly appreciated. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Floral City, FL, USA

Motor failed. 140k miles shouldn-??t happen on a 2021. Meticulously maintained.

- England , AR, USA