The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the contact heard a popping sound, and the engine seized. No warning lights were illuminated. The contact coasted off to the shoulder of the road. The contact stated that while attempting to restart the vehicle, there was an abnormal banging sound coming from inside the engine. The vehicle was towed to an independent mechanic, where the vehicle was diagnosed with engine failure. The contact was informed that the engine had an internal failure. The contact was informed that the engine needed to be replaced or rebuilt. The vehicle was not repaired. The contact referenced an ongoing NHTSA investigation. The contact declined the repair while awaiting the results of the current NHTSA investigation. The manufacturer was not made aware of the failure. The failure mileage was approximately 108,000.

- Indianola, IA, USA

August 30th 2024 the pickup was just turning to roughly 30,000 miles and started a knocking sound. The GM dealership tore it apart and fixed what I believe they said was a bent rod. I cycled through two oil changes and decided to pull an oil sample. I sent oil sample off for analysis. The oil analysis came back urgent with very high levels of copper and lead showing in the testing. I then called the GM dealer and they had me bring it in. They did not send off any oil sample because when they pulled the filter, they could already see metal in the new oil. They had me call GM customer service because it is not part of the current recall. I contacted GM customer service on October 27, 2025. They gave me a case number 80392504. I was to bring it back to the dealership which I did. Again dealership called said metal was found again but GM will not do anything with it because it-??s not under recall. They also told me that GM told them it is OK to have metal in the oil. I said well if it is OK to have metal in the oil I want to know what the test results show. Then I said, I want to know where the maximum allowance is. They did not know that. I said so it is an infinite amount according to them because there is no standard to check against. I said I-??m not taking this in for a recall. I am bringing it in because I had my own diagnostic testing done. It failed. I drive back-and-forth to North Dakota and I told them this is very unsafe if that motor goes out and it-??s -30 or -45 and my little boys in the back the heater is not going to work. That is very unsafe and deadly. When you have extreme temperatures like that, we cannot just be running around. Tell the engine blows up or locks up. I told them this needs addressed you don-??t pay $82,000 for a vehicle and not get any support or care. I said if something happens to my boy, they will wish that they put a new motor in there or fixed it. They are playing God. They need their hand, slapped and do the right thing. Thank you

- Hoskins, NE, USA

My truck was brought in for the recall inspection for the 6.2 lt recall. After showing the dealer pictures from the oil that drained out of my previous oil change that was filled with metal, they expedited the inspection. But with substantial amount of metal in the oil filter the truck still passed the test. GM corporate has told me that once the inspection is done, it is out of their hands and that my truck will be covered under the new extended warranty. GM also should have the pictures of the metal flakes from the previous filter. I fill like this is a failure to ensure the safety of their product. I do not fill safe having my children or my wife in the truck due to the inevitable of the engine loosing power due to the faulty cam shafts that need to be replaced.

- Kingsport, TN, USA

Vehicle experienced engine failure while driving. Loss of power in traffic. Inspected by dealer and determined to have lost compression in cylinder #5. Initial inspection determined that lifters and camshaft would need to be replaced. This issue is the same common problem with this year model (2021) Chevy Silverado Trucks as noted in TSB #N212353840. At time of purchase dealer did not notify me that these trucks were experiencing these issues nor did they complete the suggest repairs prior to the sell as described in the TSB.

- Trussville, AL, USA

engine is knocking very bad. GM Dealer says it is an issue w/ the piston main bearing and the engine needs to be replaced. Says vehicle should not be driven.

- Elkhorn, NE, USA

My engine on my 2021 Silverado 1500 with the 6.2L L87 engine failed, I took it to the dealer to repair and they quoted $4500 to fix it. I know these same engines are being recalled and GM is having to replace them, but they told me mines not one of the ones being recalled and the won't cover it because the warranty was up 5,000 miles ago. I highly doubt it's a coincidence, that mine failed after only 65,000 miles and it's not a manufacturer flaw. The vehicle is currently at the dealership awaiting repairs.

- Vacaville, CA, USA

I was driving on big highway when I lost power brake light came on engine light on message about emergency brake need it serviced I was only able to go about 15 mph on big highway very dangerous engine sounds knocking was very loud at this point I knew something very bad happen my truck only had about 85k miles on it I took to the dealership to get a diagnose they took my oil filter off and found metal debris on it and told me I need a new engine I has to know what made this engine fail but they just told me a internal part fail well I was not happy with that answer knowing that some model truck with the v8 engine where having problems with valve body-??s my truck is 4 cylinder turbo 2.7. My truck is out of warranty I call gm and told them what happen and they call me back after speak to the dealership and offer to pay 30% of total cost to replace engine I was quoted $10,4000 for the engine replacement the dealership was shock that gm was willing to pay for something out of warranty I just wanted to have this on record it seems very wrong that a truck with so low miles with need a engine replacement out of nowhere broke down on highway put me and other at risk my truck as been at the dealership from the day it happen and I-??m still waiting on a engine they are telling me they are out of stock over a month still waiting

- Toccoa, GA, USA

GM 6.2 engine recently tested for the national recall regarding valve and lifter issues. Recall was cleared as ok, but they found burnt cylinders in multiple areas within the engines. Several issues are still occurring with this engine, and I think most are related to the recall effort. 1. Engine will use oil at an abnormal pace when towing anything heavy. Recently used an additional 2 quarts of oil when towing a trailer that weighed 10, 000 pounds over 1600 miles. 2. Recently engine seemed to lose compression at a stop light and turned off. This happened an additional 5 times until I could get the truck off the road and into a safe place. The engine would immediately start and then die within 5-10 seconds. Towed to a Chevrolet dealership and the service manager tried to move it into the bay for diagnostic testing. started and stopped 4 additional times as they attempted to drive if 100 feet into the service bay. Towed to my hometown dealer that afternoon for diagnostics testing. The next morning when they started the truck it cranked fine and has been running since (7 days). No lights appeared on the dash during the breakdown or warnings appeared in their testing I have spoken to several other Chevrolet owners about the 6.2 engine issues and what was occurring with my truck They also had seen an increase in oil usage when towing heavy. I believe that your investigation needs to delve further into not only issues with the lifter / rods but also into other mechanical concerns that are oil dependent and related such as burnt cylinders. This last issue occurred on October 27, 2025.

- Fayetteville, NC, USA

Vehicle was at a stoplight with the auto start button engaged on it. The vehicle completely stalled. All the power is drained from the car. leaving me stranded in the highway. I got it towed and when replacing the battery still nothing will roll over or even turn on.

- San Antonio, TX, USA

Engine just died going 55 mph on a paved road. GM repair shop says engine needs to replaced. They originally told me my 6.2L engine was a recall, but my VIN didn-??t show on database. Seems GM-??s scope was not wide enough on their recall. I feel I deserve a new engine.

- Gladwin, MI, USA

misfire on cylinder #6 lifter failure on cylinder #6 bent push rod on cylinder #6 happened going down the highway at 75mph, luckily no one was injured local Chevrolet dealer did diagnostic and repairs repairs were covered by aftermarket warranty - $100 deductible no warning lamps or messages or other symptoms before hand

- Sheridan, WY, USA

2021 chevy silverado Engine was under the 6.2 recall On Sept 4 2025. The engine blew and the truck was taken to local chevrolet dealer. It had 38k miles on it. It stillf ell under the original powertrain warranty and the recall. Dealer informed me new engine was needed and ordered. It has been 2 months and the engine has not shipped from GM. 60 days is more than adequate time for this issue to be resolved. GM has made no attempts to make this right. Please help

- Haysi, VA, USA

Started with a clicking noise that mechanic thought it was the fuel pump but found out later it was the bearing is the rocker arms that failed and ruined the camshaft. Now it needs a new engine.

- Azle, TX, USA

Dealer says my vehicle is not approved to even check the motor out. Build date 6/21 6.2l motor under recall

- Leroy, MI, USA

Engine failure in 2023. Paid 15,600 to have engine repaired and gm is denying reimbursement because repairs not done at dealership and vehicle is too old is what they are giving me for reasons for denial.

- Bloomingdale, GA, USA

I-??ve purchased my Chevy Silverado brand new and I-??ve had to bring it to the dealership multiple times for code P1098 this will be the second time this has been repaired. Looking on line this is very common. This is the second time I have to leave my vehicle at the dealership and not I don-??t have my vehicle.

- Kimberly , ID, USA

Engine is jerky read online issues have a lemon lawsuit. The dealership said it was an 02 sensor it didnt fixed the issues

- Locust Grove, GA, USA

While driving the engine shut off without any warning lights which could have caused a serious accident causing bodily harm or property damages as I was unaware of the issue and was going 50mph at the time - this occurred on 10/23 I noticed a ticking and brought the vehicle to the dealer for inspection on 10/20, at the time of this inspection the technician said that they could not replicate the sound and I explained that this was happening at 3000 RPM. The technician said that I would need to bring the vehicle back and they would need to start to take apart my engine piece by piece and I said the ticking is part of the known lifter problem and the technician shrugged his shoulders offering no other options. That same day I took my vehicle to another independent shop and he confirmed the ticking is a known issue that occurs prior to the lifter collapsing. After the vehicle shut itself off, and I was able to restart the vehicle, many warning lights appeared on my dash, there were none there before, one of the codes that was flashing was ESC and the vehicle began to lurch and downshift. I called my mechanic who said the code was to do with the electronic stability control system but I should be okay to drive until I could get to him for him to look at the codes. On 10/24 I took the vehicle to the mechanic and another code was for Cylinder 3 misfire which he stated could be the collapse of the lifter and the codes will not clear. The vehicle now downshifts without warning, there is an engine knocking that is occurring and the vehicle is not safe to drive as the engine may seize at any moment.

- Aurora, IL, USA

Like many others, I have been dealing with many issues with this truck. I have had repeated cooling valve failures, resulting in decreased engine power and constant cooling fan running at high speeds. Additionally, cranking issues with starting the vehicle.

- Bozeman, MT, USA

Like many others, I have been dealing with many issues with this truck. I have had repeated cooling valve failures, resulting in decreased engine power and constant cooling fan running at high speeds. Additionally, cranking issues with starting the vehicle.

- Bozeman, MT, USA