2021 CHEVROLET SILVERADO 1500 Engine Problems

I have a Chevrolet Silverado 1500 with the 6.2L engine. I received the recall notice about the loss of propulsion due to a crankshaft issue. The safety of myself, family, friends and coworkers who ride with me on an everyday basis were put at risk because of the faulty engine. I brought my truck in for an oil change in August 2025. I had the Team Chevrolet dealership in Las Vegas Nevada do a telescopic inspection to see if my particular engine had the recall issue. It was discovered the engine did have the recall issue and was kept by the dealership for roughly two and a half months. Chevrolet has confirmed this is a major issue and is affecting roughly 600,000 people. There was no sign of the issue before the telescopic inspection but since the engine has been replaced I have now had three separate issues with misfiring cylinders on the new engine. The plugs and wires have been replaced twice and has not resolved the issue. When the misfires have occurred there were error codes, check engine light notification, and engine sputtering. This again has endangered the safety of myself, family members, friends, and coworkers who ride in my truck on a daily basis. This is now going on four months of issues that keep persisting and I am very concerned that both the manufacturer Chevrolet and the Team Chevrolet dealership are not taking the proper steps in order to solve this very serious issue.

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notice of an unknown recall in approximately July 2025. The contact stated that while driving at approximately 65 MPH, the vehicle stalled. The vehicle was towed to a dealer, where it was diagnosed that the engine needed to be replaced, and the failure was associated with the recall. The contact was also advised that the parts were not yet available. The contact stated that the vehicle remained with the dealer for three months and was repaired when the parts became available. The contact stated that two days after the repair, while driving at an undisclosed speed, the vehicle vibrated and hesitated. The vehicle was taken back to the same dealer where it was diagnose,d and determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, and three cases were filed. The failure mileage was 81,000.

Mileage: 81,000

The coolant control valve has failed, my vin isn’t a part of the special coverage for this bad part ( though the same part and model is covered)

2021 Silverado 19,000 miles no indication of failure at a busy intersection about to go thru intersection and engines started knocking, multiple check engine lights on. Luckily got thru the intersection and to my place of residence which was very close by. Truck was towed to Chevy dealer. Dealer found 3 bent push rods, 3 bad valves. This engine had the lifters fail completely out of the blue. Oil changed at the dealer, meticulously maintained. Dealer only replaced the faulty bank of lifters due to mileage, seriously if it was under 16,000 they would replace all of them. This is unacceptable. This truck left me almost stranded in a busy intersection, lucky I knew well enough to keep going versus getting T-boned. I just think GM needs to do something about this. Now fast forward to 41K and I'm at the dealer same symptoms except this time my warranty is running up soon and being forced into an extended warranty. There are plenty of online claims, chat rooms, posts, etc to warrant this as a safety issue.

The contact owns a 2021 Chevrolet Silverado 1500. While the contact's husband was driving at an undisclosed speed, the vehicle started chugging and the engine seized. No warning lights were illuminated. The vehicle was towed to an independent mechanic, where it was diagnosed with engine failure. The contact was informed that a rod had detached and was sticking out of the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact referenced an unknown recall with a similar failure description; however, the VIN was not under recall. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 50,000.

Mileage: 50,000

The engine failed while driving down the road at night in single digit temperatures. After further investigation, there is a connecting rod sticking out of the engine. I looked to see if there was a recall or anything. Sure enough there was. 2021-2024 Silverado 6.2 liter engines for crank shafts and connecting rod malfunction. I'm curious how my 2021 6.2 liter Silverado that has a connecting rod sticking out the side of the block is not part of this recall?

The truck has 61000 miles on it I got it in August there is engine knock which sounds like a bearing might’ve went and now the rod is loose in there. There is a large recall already regarding the same make and model of my truck for this exact issue.

GM 6.2L L87 that was outside of GM original recall engine failure. Engine was running, made loud grinding and squealing sounds then shut off and now engine is locked up.

Throttle Body Failure Anti brake lock failure Throttle position sensor failure Power reduced *Vehicle has been to repair shop 3 times and the issue prevails. It poses a risk to my community because my loses power sporadically*

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that after the vehicle was stopped at a traffic light or stop sign, while attempting to accelerate, the vehicle briefly lost motive power before slamming into gear. The check engine warning light was illuminated. The contact stated that the failure had gotten worse. The vehicle was taken to the dealer; however, no cause for the failure was found. The contact stated that the failure persisted. The vehicle was taken to several dealers; however, no cause for the failure was found. The manufacturer was not notified of the failure. The failure mileage was approximately 140,000.

Mileage: 140,000

I have three check engine codes P0340 Camshaft Position Sensor A Circuit (Bank 1 or single sensor) P0341 Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or single sensor) P0016 Crankshaft Position - Camshaft Position Correlation - Bank 1 Sensor A The last one is the same code that’s involved in the L 87 recall that my vehicle is three months shy of I have a 2021 Silverado trail bus 6.2 L that was manufactured in December 2020 I have very rough idol delayed throttle response in multiple camshaft codes that correlate with the crankshaft symptoms of the L 87 recall

In January 2024, I experienced an engine failure in my 2021 Silverado with the 6.2 Engine. My VIN was not part of the recall affected VIN units built in 2021-2024, it seems to have been built a few months before the last affected group, In any case, I noticed the engine stumbling, and the check engine light came on. I was able to drive the truck home, and when I went to start it the next day, the check engine light was off, so I drove it, and the engine stumbled the check engine light came back on, so I took it to the dealer. They read the codes, and cylinder 5 was misfiring. When they put a scope in that cylinder, the cylinder walls were scored, and there was oil in the cylinder. At that point the dealer chose to replace the engine with a remanufactured engine with no additional warranty added, or any other remuneration for the inconvenience. They did not share with me any specific reason (Lifters / Camshaft / something else) for the engine failure.

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.

Mileage: 108,000

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

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.

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.

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.

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.

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 $10,400.000 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

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.

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.

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.

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.

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

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 - $100.00 deductible no warning lamps or messages or other symptoms before hand

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

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.

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.

ENGINE IS JERKY READ ONLINE ISSUES HAVE A LEMON LAWSUIT . THE DEALERSHIP SAID IT WAS AN 02 SENSOR IT DIDNT FIXED THE ISSUES

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.

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.

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.

While driving at anywhere from 18–25 mph or 70–85 mph, my speedometer starts going crazy, the engine accelerates or decelerates, the speedometer shows random numbers, and you can hear and feel that the motor power feels different. Not all the times but is started to show more often

Left and right cylinder heads failed. Left bank at 20,000 and right bank at 40,000 miles

My belief is a valve rotated and the cam shaft has defligrated to the point that the engine casing has been pierced. Chevrolet is saying I am not covered by the recall for my 2021 Chevrolet Silverado 1500

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while her husband was driving approximately 60 MPH, the vehicle started shaking and lost motive power. The contact stated that the check engine warning light was illuminated. The driver was able to drive the vehicle back to the residence at a reduced speed. The vehicle was then driven to a local dealer to be diagnosed. The dealer diagnosed the vehicle and determined that the engine control module and sensors needed to be replaced. The vehicle was repaired. The vehicle was retrieved; however, while driving off the lot, the check engine warning light illuminated, and the vehicle started shaking violently. The vehicle was with the dealer. The dealer then diagnosed the vehicle and determined that two of the lifters in the engine needed to be replaced. The vehicle was not repaired. The contact researched online and related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The manufacturer was informed of the failure and confirmed that the VIN was not included in the recall. The contact was referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 70,000.

Mileage: 70,000

Truck has under 45k miles on it. After reaching 35-40mph, it began to shake and jolt. Once we drove approximately 20miles, the engine light began flashing, in addition to the parking break light turning on. The truck began to lose power and we were forced to pull over on the side of a busy road. After waiting a little bit, we were able to drive it to our local shop who advised us to tow it back the the dealership for repairs.

Engine failure in October of 2023. Had vehicle towed to dealership and was told truck was not under warranty because of mileage and was going to be months before they can get to it because of parts on backorder or shortage of parts. Had truck towed to another shop and had the repairs done there, at my expense, for a total of $15,600. Fast forward to July of 2025, recall comes out on my truck for engine failure. Got reimbursement form with recall notice in the mail and got the required documents to submit form and was denied reimbursement for the following reasons, truck is too old for reimbursement and also because I did not have the work performed by a dealership. It is my understanding that there is a federal law stating that a manufacturer can not deny reimbursement for using a 3rd party auto shop for repairs and as far as the truck being too old for reimbursement, the repairs were done well within the 10 years allowed by federal law so I don't understand what the problem is . Please help Thanks

Coolant control valve manufacturer defect, 3.0 duramax LM2

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at 35 MPH, the vehicle lost automotive power. There was no warning light illuminated. The contact immediately pulled over and attempted to restart the vehicle; however, the vehicle failed to start. The vehicle was towed to a local dealer where it was diagnosed, and the contact was informed that the engine was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 77,000.

Mileage: 77,000

We have a 2021 Chevy Silverado 1500 in which the engine has failed. We believe this is the issue involved in the recall of Chevy Trucks. It needs to be added to the recall list. It has been unable to move since 2/17/2024. We have reported this to GM but they have not responded. Thank you

I have a 2021 chevy silverado and in october of 2023 I lost oil pressure and took the truck to a mechanic shop and they determined that the engine had spun rod bearings and crankshaft bearings inside the engine block and needed to be rebuilt. I had them make the repairs and upgraded the engine with aftermarket parts which cost me $15,600. When the recall came out this year it came with a form for reimbursement. I collected all the documents required to submit for reimbursement and I was denied because I did not have the work performed at a gm dealership. I didn't take it to the dealership because of the time they required to fix the truck and it was already out of warranty because of the mileage and I really didn't want to replace the engine components with more of their faulty parts. Just because I had the repairs done at a 3rd party shop does not excuse the fact that they sold me a truck with a faulty engine.

I am filing a formal complaint regarding a serious safety concern with my 2021 CHEVROLET SILVERADO, following the completion of recall N252494001 performed by Galleria Chevrolet in Dallas, TX. Prior to this recall work and related inspections, my vehicle operated without any abnormal engine noise. After the recall inspection and a subsequent fuel injector repair performed by the dealer, my vehicle began producing a bottom-end engine noise that had never been present before, and ultimately we have catastrophic engine failure. What is highly concerning is that the dealership staff previously documented the situation in writing as follows: “We performed the recall inspection and the truck passed. After performing an injector repair now there is a bottom-end noise when it's running. Did the failed injector possibly affect the validity of the test? That may be the case. We know that the truck did not experience the noise before the inspection; is it possible that the steps we took affected the truck in a way that got the noise to show itself? That’s what we need to determine.” Despite this acknowledgment, the dealership is now denying any responsibility, classifying the damage as unrelated “wear and tear”. This reversal appears highly suspicious, as it contradicts their own observations and written notes. It suggests that the dealership and GM may be refusing to fulfill their obligations under the recall and repair warranty, leaving me with a vehicle that has a blown engine and a significant safety risk. Given the timing of the noise, occurring directly after recall work and injector repair, and the internal documentation from the dealership itself, I request NHTSA investigate whether: This issue is part of a broader trend affecting other vehicles under the same recall. GM and its dealers are properly honoring their obligations to fully repair vehicles impacted by recalls. Consequential damage resulting from recall work is being systematically denied coverage.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving off an off-ramp at approximately 40-60 MPH and depressing the brake pedal, the vehicle suddenly lost power and turned off. The contact restarted the vehicle to continue driving. The failure had occurred twice. The contact stated that while driving at various speeds and depressing the brake pedal, the brakes grabbed, causing the vehicle to lunge forward, decelerate, and then lunge forward again, before coming to a complete stop. The contact shifted to park(P) and then to drive(D) and continued driving. The check engine warning light was illuminated. The vehicle was taken to the dealer four times before receiving notification of NHTSA Campaign Number: 24V797000 (Power Train). The dealer was unable to determine the cause of the failure. The vehicle was taken to the dealer, and the recall repair was performed. The contact stated that one hour after the recall repair, the failure recurred with the check engine warning light illuminated. The dealer was informed of the failure; however, the vehicle was not diagnosed or repaired again. The manufacturer was informed of the failure. The manufacturer referred the contact to the dealer for assistance. The failure mileage was approximately 56,000.

Mileage: 56,000

The 3 and 4 cylinder need to be replaced at 130000 miles with regulate maintenance always maintained

2021 Silverado 1500 Trail Boss LT with 6.2ltr V8 L87 had sudden catastrophic engine failure at 90,000 miles with excellent and routine maintenance up to. Findings were a broken timing chain, cracked piston and debris in number 8 intake port. Vehicle lost propulsion on the highway posing a safety risk to the driver, passengers and other vehicles on the roadway. Dealership confirmed the findings. There were no warning signs, signals, lamps, beeps, noises or any other indicators that there was an issue with the motor. It unexpectedly and suddenly failed without warning.

General Motors is selling vehicles that are unsafe, unreliable, and unfit for consumers. My experience shows a clear pattern of negligence, misrepresentation, and disregard for public safety. On or about April of 2021, I purchased a 2021 Chevy Silverado RST z71 from Vetter chvrolet for about $56,000. GM promoted this vehicle as safe and dependable. Within the short 4 years of owning this truck, I faced major failures: engine issues, transmission problems and electrical malfunctions causing the parking break to engage on its own, at highway speeds of 70-80 mph on which nearly caused a serious accident, and failed Electronic Stability Control (ESC) system. This system helps maintain vehicle control, and a problem with it can affect braking, steering, and handling, Despite following GM’s maintenance guidelines, GM delayed repairs, denied coverage on certain failures, and left me with thousands in out-of-pocket costs. The vehicle remains unreliable and unsafe. For myself and my family, 2 children under 3 years old and one on the way. This is not an isolated issue—GM has a long history of recalls and defect cover-ups. These vehicles put lives at risk, cause financial hardship, and violate consumer trust. No one should fear for their safety in a vehicle marketed as “dependable.” This has impacted me by having : • Expensive repairs • Loss of transportation for extended periods • Ongoing fear of driving a defective vehicle with my family in it. Loss of use of my vehicle • Fear and emotional distress driving an unsafe product I have contacted GM and the dealership multiple times. Responses were dismissive, repairs were inadequate, and GM refuses accountability. Requested Resolution: Full reimbursement for all related costs Buyback (preferred) of the vehicle OR permanent repair at no cost Public acknowledgment and stronger quality control. Warning to Consumers: Think twice before trusting GM. Their failure to correct dangerous defects shows profits matter more than safety.

On, or about, 10 June 2025 I attempted to start my 2021 Chevrolet Silverado (with the L87 engine) and noticed an extremely rough idle. I shut the engine off and attempted to restart the engine, the idle was rougher than previous and then white smoke started billowing out of my exhaust. At that point I called a wrecker to take my truck to the service center at my dealership. After the dealership diagnosed my engine they stated that it had failed due the defect in the L87 engine that is currently the subject of an active recall. The service center informed me I would need a replacement engine under the warranty but could not give me a timeline, I have been in constant contact with my service advisor and they indicate that GM has no updates as to where I am in the queue, or how long it may be before my replacement engine will be sent. As of writing this complaint it has been two months with no updates from the manufacturer.

So many vehicles like mine have si.ilar issue. Lifter issues causing engine damage and other part damage. Causes issues at high-speed with power and stranded motorists on dangerous highways. It is a safety issue because you could be stranded in middle of highway. Lifter issues causing bent pushrods and other engine part damage costing . I had one pushrod covered, but others failed and now thousands in repairs. In expensive vehicles. Also towing charges, hotels, rental cars, etc... I dont want to be stranded again as only one bank was all replaced. The entire top half of the engine should be fixed and should be replaced and a service bulletin and recall should be issued to help.protect consumers.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 30 MPH, the rear wheels locked up, causing the vehicle to slide across the road. The contact was able to regain control of the vehicle and came to a stop in the middle of the road. The check engine and traction control warning lights were illuminated. The contact turned off and then restarted the vehicle and became aware that the transmission failed to shift into the intended gear. The vehicle was towed to the contact's place of employment. The contact who is a certified mechanic performed a diagnostic test and retrieved DTC: P0747, indicating a failure with the pressure control cylinder in the transmission. The contact also found information on NHTSA Campaign Number: 24V797000 (Power Train); however, the VIN was not included. The vehicle was not repaired. The dealer was contacted and confirmed that the VIN was not included int the recall. The manufacturer was not informed of the failure. The failure mileage was 83,830.

Mileage: 83,830

The contact owns a 2021 Chevrolet Silverado 1500. The vehicle was initially taken to the local dealer to be repaired under NHTSA Campaign Number: 24V797000 (Power Train). The contact stated the vehicle was not repaired. While driving 30-35 MPH, the rear-end locked up and caused the vehicle to enter the wrong lane. The contact stated that other vehicles were able to drive around the vehicle during the failure. The engine revved, and the RPMs revved too high. The driver was able to pull over safely. The check engine, traction control, parking brake, and maintenance warning lights were illuminated. The vehicle was towed to the local dealer, where it was diagnosed, and it was determined that the rear-end had locked up, and the #5 cylinder and wiring harness needed to be replaced. The mechanic was unable to unlock the rear-end. The vehicle was not repaired. The vehicle was taken to the local dealer on six other occasions for unknown issues. The manufacturer was contacted regarding a buyback. The failure mileage was approximately 34,958.

Mileage: 34,958

The truck started rattling and lost power while driving. Every warning light came on on the instrument panel. I was driving on the freeway in rush hour traffic when this happened. Yes, it has been confirmed by a dealership and independent service center. No lights were on prior to when it failed to give any warning that something may be going wrong. The failure occurred immediately after GM issued a recall in April involving defective V8 engines (Recall Link [XXX] )). While our truck is not currently included in the recall, the diagnosis of the vehicle is all the same as that of the recalled engines. We should not have an engine failing at 130K miles on a vehicle that has been well maintained. We are asking that this truck be added to the recall. We are still without the vehicle as engines cannot be sourced. Please advise on next steps. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

In June 2025, I received a letter from General Motors noting that a defect exist relating to motor vehicles safety in certain 2021 model of Chevrolet Silverado equipped with the 6.2L V8 gas engine (RPOL87). The dealer has been unable to fix the issue in a timely manner as they claim that the parts are on backorder. Additionally, they have been unable to provide me with another vehicle while my car is in the dealer. It is completely unacceptable that the dealer has been unable to fix the issue in a timely manner or provide with alternative form of transportation while the parts arrive.

Lifters 1-3-5-7 all failed. They were pitted as was the camshaft. Diagnosis from Hendrick Chevrolet in Hoover AL. 70k miles on one owner truck. Regular servicing and never towed anything.

No updates have been made to fix recall. Status has been pending for a long and it’s preventing me from selling the car due to fear of breaking down.

check engine light came on at 55000 mile went to servige ststion they check oil 4 quart lowe motor leaking o il . been to dealer 5 time in last 2 0r 3 month . now engine making peaking noise at 6400 mile . dealer say warrenty out have to pay for repair . something wrong clinder head they guess dont now for shore will have to tare into motor this truck was under warrenty when i first took it for repairs now they want me to pay for the repairs .

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.

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.

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.

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

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.

Mileage: 85,000

Losing power while driving and acceleration and uneven idle sometimes

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

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.

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.

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.

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.

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.

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.

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.

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

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.

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.

Mileage: 20,000

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.

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)

Engine failure with no warning. Driving home from dinner, made a right at a stop light and then warning lights and knocking sound in engine compartment, truck noticeably shaking

blown engine 6.2 L87 motor

Took my vehicle in on 3/24/2025 for an oil change and to check a perceived issue with transmission hesitation and a noise. Tech confirmed and repaired an issue in the transmission and also confirmed an issue within the engine. A replacement engine was ordered. Vehicle is still at the dealer awaiting the engine with no estimate as to when the engine will be shipped or received. It has now been well over 2 months. A loaner vehicle was provided on 4/30/2025 but is not comparable to my vehicle.

While driving my truck at approximately 50mph it suddenly lost power while in traffic. I was fortunate enough to pull over safely to avoid an accident. The motor was violently shaking and sounded like it was coming apart internally. Almost every warning light on the dashboard came on as I was pulling over. The truck had little power and did not sound normal. I immediately called for a tow truck and had it towed to the nearest Chevrolet dealership. After inspection they confirmed the lifters were bad. The truck had 38,000 original miles on it at the time of this incident. The dealership repaired the defective lifters. With the current GM recall on the 6.2 liter engine my truck does not qualify as it was built 1 month prior to the recall date. This truck needs to be included in the current 6.2 liter engine that GM is recalling. The motor is defective and is a major safety issue. If I was driving with my family on the highway while this abrupt incident happened it could have been catastrophic. There were no signs or warnings whatsoever prior to this incident.

Motor failed. 140k miles shouldn’t happen on a 2021. Meticulously maintained.

First my engine light came on and as I was in my way to the dealership I lost my brakes. It stayed at the shop for a week before I was contacted only for them to tell me that there was metal shaving in my engine oil and they recommend full replacement, meanwhile haven’t even made it to my brakes. GM offered me 3K toward replacing the 13K+ engine. That’s so unacceptable!

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving approximately 65-70 MPH, the vehicle stalled. The contact stated that several unknown warning lights were illuminated. The message “Reduced Power” was displayed. The vehicle was taken to a local dealer where it was diagnosed and determined that the lifters and push rods needed to be replaced. The vehicle was repaired but the failure recurred. The contact stated that the vehicle started to smoke while driving. The vehicle was taken back to the local dealer but was not diagnosed or repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 7,000.

Mileage: 7,000

Engine started making clicking noise when accelerating. Followed by a large screeching noise. Dash read "shift to neutral and start again" pulled to stop and tried to start. Does not crank at all.

May 3, 2025 while driving home truck starting making noise and all the dash lights started blinking including the 'check engine' light. Felt not safe to drive, afraid I would lose control of truck. Immediately pulled over and called dealership who advised to have truck towed in. Truck is still in shop and apparently needs a new engine, problem seems to be the same as the recalls for engines made in 2021-2024. The engine on my truck was manufactured in 2020 and not part of the current recall. This is the 2ND time engine has failed. June 7, 2021 at 4,600 miles again driving and engine started making noise, all dash lights flashing. Again didn't feel truck was safe to drive. Towed to dealership. Cause was a 'failure of lifters on cylinder 5 and a bent push rod.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, several unknown messages were displayed before the vehicle shifted to SAFE Mode. Additionally, the contact disconnected and reconnected the battery and restarted the vehicle. The vehicle was taken to a local dealer, where it was diagnosed with a particulate filter failure. The vehicle was repaired; however, the check engine warning light illuminated. The vehicle was taken to another local dealer, Prince Chevrolet Service (4550 N Valdosta Rd, Valdosta, GA 31602); where it was diagnosed, and the contact was informed that the exhaust pressure sensor pipe and exhaust gas recirculation cooler needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was later taken to another local dealer, Nash Chevrolet (630 Scenic Hwy S, Lawrenceville, GA 30046) for a third opinion and was diagnosed with a clogged catalytic converter. The contact was informed that the NOS sensor, EGR Cooler, and DEF fluid injector needed to be replaced. The vehicle was repaired; however, the check engine warning light was illuminated. In addition, the message "LIMP Mode" was displayed on the instrument panel. The manufacturer was made aware of the failure. The failure mileage was approximately 395.

Mileage: 395

At 2000 miles my truck developed a new “fluttering”, “ticking sound” once all cylinders reactivated as apart of the dynamic fuel management system. After bringing the truck to dealership, they proceeded to replace the lifters, the exhaust system twice, and performed a computer reflash. The truck was at the dealership for over 45 days within the first 6 months of ownership. After all the repairs, the sound is still audible and getting worse. In addition to this sound, at around 30,000 miles the transmission has now developed an audible clunking sound that can be felt once on release the gas peddle under slower operating speeds. After trying to engage with GM on simply understanding what the problem is and why there is the need for so much repair on a brand new vehicle, I am candidly fed up and let down as long term GM customer.

At 38,000 miles: While driving, the engine began knocking, vibrating and shut off. The check engine light came on and the vehicle could not be restarted. It was towed to the dealer who diagnosed it with lifter failure. It was still under the powertrain warranty at this time. Several lifters were replaced as well as other engine parts and I was given the truck back after a few weeks. A week later, truck would not start. After looking under the hood I noticed most of the hoses and wires were not clipped off, causing them to just rattle and move around. Upon further investigation, I found that the wire to the starter was loose and had to be wiggled to get the truck to start. This wire should have been secured to the vehicle with the provided clips, but it was not and came loose because of it. I also found a random loose bolt lying in a void space under the hood near the windshield. I took the truck back to the dealership that replaced the lifters and explained my frustration with the condition my truck was put back together after tearing into the engine. I also showed them the random bolt I found. Their manager assured me that they would go through the engine compartment and make sure that the wires and cables were properly secured to the side like it should have been after the initial engine work. I never received an explanation of where the random bolt came from. After this engine work, my truck never seemed to drive the same. It began use more oil and the fuel MPG decreased. I reported to the dealer on the oil consumption and they had me start an oil consumption test. 600 miles after the oil change my engine light came on, truck began to run rough and make a loud engine rattle noise. I took it back to the dealer for a diagnosis. They called back and said that there was a lot of metal in my oil when they drained it. They contacted GM and are scheduled to open the engine up to find out if it can be fixed or needs a new engine. Currently at 52000 miles

The truck, while driving at highway speeds on the interstate, experienced catastrophic engine failure, seizing the motor while in driving. Luckily, I was able to pull the truck to the side of the road safely, without a crash occurring. Losing engine/braking power could have been a major concern but thankfully, traffic was light enough I had space to pull to the side of the road. The truck had to be towed to the nearest dealer, where it was discovered the motor had seized. 2021 Chevrolet Silverado Trail Boss 6.2L motor with 47k miles on the factory warranty/no modifications. Since taking the truck to the dealer, they warranty-swapped a remanufactured crate motor in the truck. Hearing of the major increase in issues with this truck, I traded it in on a different manufacturer and now have a different vehicle. Aside from this huge inconvenience and safety issue, GM's customer support line failed to cover the full cost for a rental truck while my vehicle was down for a new motor (late November 2024 until mid January 2025) and I still have yet to receive a refund for my tow bill. This experience that has now lasted almost 6 months (still with no resolution) has been horrible. I hope General Motors is held liable for this major issue.

I have a 2021 Chevrolet Silverado 1500 with a 6.2 L engine. There seems to be a recall on this model and particular motor but my VIN does not show up. My engine has failed as described in the recall. I have a bearing failure on the crank according to my mechanics shop. Please add my VIN to the recall so I can get this problem repaired. I have been without my vehicle now for over a month and would appreciate assistance on this problem.

Engine knocking brought to dealership and they found codes P0300 and P0304 #4 cylinder with 15,000 then remove head and so order new engine from General Motors

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while his wife was driving 35 MPH, the vehicle was making abnormal sounds. The driver drove the vehicle back to the residence. While driving at undisclosed speeds, there was an abnormal ticking and knocking sound coming from the vehicle. The contact stated that the sound went away and came back. While driving at an undisclosed speed, the vehicle lost motive power and stalled. The contact stated that the engine warning light was illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included. The vehicle was taken to the local dealer, but the vehicle was not diagnosed or repaired. The dealer informed the contact missed an oil change and was negligent in servicing the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was contacted. The failure mileage was approximately 67,000.

Mileage: 67,000

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 40 MPH, the vehicle started shaking abnormally, and the vehicle lost motive power. The contact stated that the check engine warning light was illuminated. The vehicle was taken to the residence. The vehicle was then towed to a dealer where it was diagnosed with engine failure. The contact was informed that some undisclosed parts needed to be replaced. The vehicle was repaired but the contact stated that the vehicle was still shaking slightly. The manufacturer was notified of the failure. The failure mileage was 92,000.

Mileage: 92,000

I am filing a formal safety complaint regarding a persistent and unacceptable failure with my 2021 Chevrolet Silverado Trail Boss. The vehicle intermittently fails to start due to a recurring “Service Steering Column Lock” error. While the key fob still locks, unlocks, and remote starts the truck, the push-to-start system becomes entirely non-functional once inside the vehicle. This defect is not only frustrating — it’s dangerous. My wife has already been stranded twice, once in below-freezing temperatures in January, and again in May, causing her to be late for work and left alone at night in unsafe conditions. A truck purchased for over $60,000, marketed as rugged and dependable, should not be experiencing a critical failure like this at just 48,000 miles. What’s more concerning is that this appears to be a known issue within the GM community, with no official recall despite Technical Service Bulletins (TSBs) acknowledging the problem. Customers are being left with unreliable transportation and no consistent fix. This failure is both a mechanical and safety issue, leaving drivers vulnerable without warning. I urge NHTSA to investigate this defect, pressure GM for a formal recall, and ensure corrective action is taken before someone is injured due to being stranded or the failure progressing to more critical steering or ignition malfunctions.

this is 6.2 l l87 engine that is being recalled but this vin is not on list. already had lifters and rods replaced while back. coming home from trip truck made awful noise and I lost power on the interstate. thankfully was able to get out of traffic but waited 3.5 hours for tow. at dealer but cant tell me when they can look at it. 60,200 miles and they are saying well we will see what we can do but your powertrain warranty ended at 60k. i have had numerous problems and these are all known by gm especially 2021 6.2l.

The 6.2 is using 1-1.5 QT. every 3000 or so miles. I have done the check every 1000 miles. Had a bent lifter replaced 2 christmas ago.

Driving to work my engine failure light came on….the engine immediately sputtered. I immediately drove inside the bay at Ozark Chevrolet. As soon as I pulled in….the technician told me to turn it off and that I wouldn’t be driving it anymore. See my statement for $3,429.15. I have to carry my grandkids in this vehicle. I traded it in on Tundra. And now I find out about the recall. It was the 8cyl engine currently under recall.

Service Engine Soon lamp illuminated with extremely rough running engine, would barely keep running. Dealer diagnosed misfires on cylinders 1, 3, 7, with cylinder 5 showing the most misfires. Tear down revealed defective lifter on cylinder 5. Repair under warranty included replacing all bank 1 lifters. Mileage of vehicle was 19566 at time of repair

Driving the truck at 45 mph, the engine stalled and the dash had all the lights on showing codes. Had it towed home and called the dealership the next business day. I was told it was the drive belt pulley that had gone bad causing loss of engine power. I had that replaced and the dealership then told me that the lifters were bad. I had to get that replaced because I needed my truck. The dealership had had it for almost three weeks at that point. $1300 to replace a lifter.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 70 MPH with the cruise control feature activated, the oil pressure message was displayed, and the vehicle stalled. The vehicle was coasted to the side of the road. The vehicle was not able to be restarted. The vehicle was towed to the residence and then to a dealer to be diagnosed, and the contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 78,000.

Mileage: 78,000

The repair estimate includes a complete teardown and replacement of the camshaft, 16 lifters, seals, bolts, gaskets, and associated components. The full cost breakdown is: Labor & Parts Subtotal: $11,402.78 Shop Fees & Tax: $467.13 Total Estimate: $11,869.91 Yes, the vehicle is available for inspection. it has been inspected by a chevrolet dealership and they gave us the above estimate to repair it. The vehicle powered down while driving on the freeway. It has not been inspected by police or insurance representatives, only by the chevrolet dealership service department. No, there were no warning signs prior to it powering down on the freeway. When it stopped producing power needed, the engine light came on as well as emergency brake light. This issue started on the freeway on Tuesday, April 29, 2025. The vehicle is only 4 years with only 130,000 miles and one that has been properly maintained. We believe this failure is not due to neglect or wear, but rather a known manufacturing defect.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 25 MPH, the vehicle suddenly stalled. The vehicle was able to restart. The instrument panel was illuminated with several unknown service lights. The vehicle was taken to the dealer who diagnosed that the lifters had failed. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was 140,000.

Mileage: 140,000

While driving, engine stop and dash had message to put in neutral and hit start button to restart, but dash would gest go dark and did not restart. Vehicle towed to Wilson and Bell Automotive. After get engine reset I was told engine has loud knocking sound and needs to be replaced. I been going to this shop for over 30 years and trust there description. New engine was ordered. Then found out several days later that GM is going to recall my vehicle 2021 Silverado 1500 6.2 engine due to engine failure.

Metal shavings were found in my oil after the check engine light came on a day before I took it in. The day that I took it in my brakes limited the speed of my truck to 43 mph due brake malfunction. The dealership called and told me that they recommend engine replacement due to the metal shavings found in the oil. I can give more in depth info as I receive it but I just wanted to alert Chevy that my vehicle is doing the same thing that the others are getting recalled for.

I am reporting a safety concern that I believe should be included in an existing or expanded recall for the Chevrolet Silverado. The issue involves engine replacement due to metal shaving being found in oil & brake failure, which occurred on 05/01/2025 The problem with the brakes occurred while I was in heavy traffic in Dallas, Texas multiple times, resulted in multiple near-accident experiences that day. The truck has been diagnosed by a mechanic, at the Chevy dealership and I believe this defect poses a serious safety risk and may be affecting other Silverado vehicles outside the current recall scope. I have driven the vehicle to Chevy and stayed in constant contact with the dealership, had diagnostics done, but the issue has not been resolved. am requesting that the NHTSA investigate whether this issue warrants inclusion in the current recall or a new safety campaign. I have on had this vehicle less than 2 years and I put less than 70K miles on it. I purchased it from vandergriff Chevrolet in Arlington, TX

Truck ENGINE completely SHUT down while driving on a high traffic road in my area. Had vehicle towed to my dealer for inspection.

Engine starting shaking while driving and lost power. With only 33000 miles on engine.

faulty lifters, causing engine light on, and causing multiple missfires. 2021 5.3 v8 engine. GM has inspected engine and has no solutions, problem first appeared with only 343 miles on new truck.

My engine is out due to the piston rings failing and is at a dealership waiting for a new engine. The engine for this vehicle is on national back order with no ETA in sight. Out of nowhere the low oil light came on and I had to stop immediatley to check it as to make sure nothing happened while I was driving down the road. The dealership that has it has confirmed that the issue was due to the pistons. This vehilce was purchased brand new and has had perfect maintenance performed on it since day one. The dealership has inspected the vehicle. The low oil light first came on in February. I took it straight to a place to have them check it and change the oil again just until I could get it to the dealership a few days later. I was advised to have an oil consumption test done. On the 3rd time, which would have been around 3000 miles, it had already consumed more than a quart of oil. They did a borescope and confirmed that the pistons are bad and because of this the inside of the engine is scored. Now I need a new engine on a vehicle that I've taken perfect care of. I believe that this vehicle should be included in the GM recall with the other 6.2 engines as this is also a 6.2 engine in the same year range. I have included the paperwork from the dealership and my carfax showing maintenance.

Batter dies for when it's cool out side and the truck has a brand new battery. The battery has since I've had the truck .replaced the battery last year and it stills die..when it's cool outside..false reading on brakes had them checked twice at the dealer ship .the truck loses power when turning the corner and I makes a loud clunk nose when I drive..

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at 45 MPH, the vehicle started shaking excessively, prompting the contact to discontinue driving the vehicle. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the lifter in cylinder #7. The vehicle was repaired, but the failure reoccurred 4 years later. The manufacturer was not notified of the failure. The failure mileage was approximately 17,000.

Mileage: 17,000

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle hesitated, and the rear wheel seized. The contact was able to coast to the side of the road. The vehicle was taken to Auto Zone; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that on a separate occasion, while driving 15 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal and the vehicle stalled. No warning light was illuminated. The vehicle was able to restart; however, reverse(R) was the only operational gear. The vehicle was towed to the dealer. However, the vehicle was not diagnosed or repaired. The contact stated that weeks before the failure, there was an abnormal sound coming from the engine. The manufacturer was not made aware of the failure. The failure mileage was approximately 8,000. .

Mileage: 8,000

The engine light is blinking while driving on the highway, it comes and goes, I have a video for that. Also it has a ticking noise and I’ve had the noise since I bought the truck and took it multiple times to the dealership, first it was the pump they replaced for free but the ticking never went away, I took it back and they said that all the trucks tick like that, and all that should be documented. Also while sitting still it sounds like the truck is shacking just a little. I have an appointment to which I have to pay $250 for them just to look at it. I think that my truck should be up under the new recall for the 2021 Chevy Silverado because my truck is knocking and also throwing off a blinking engine light.

The Engine has unexpectedly spun a rod bearing causing the engine to run erratic, low power and knocking. I have taken it to a automotive repair shop and that is their diagnosis. This is the 6.2 liter that has the issue that has recently had a recall issued but my VIN does not show a recall

Complete engine replacement at 174 miles. Lifters on left bank replaced at approximately 28,000 miles. Lifters right bank replaced at approximately 58,000 miles.

On March 16, 2025 driving to church in Siloam Springs Arkansas it lost power while going down the road at 45 mph and we started hearing an oddly loud noise and then the check engine light came on. We limped it into the church parking lot. We came out from church and started the engine, there was no check engine light. We pulled out of the church parking lot and started down the road and we got up to 55mph when the oddly loud noise occurred again and check engine light came on. We pulled over and called for a tow to the dealership Superior Chevrolet of Siloam Springs. They found the engine was missing on cylinder #2 and the #2 connecting rod was bent. They found the lifter on #2 exhaust was broken. They inspected the cam and all the lobes looked good. They replaced the right bank of lifters and guides with all gaskets seals and pipes. Changed the oil and filter. Refilled the coolant. Test drove 10 miles and verified operation. It had 58,055 miles when this failure occurred. Our safety was at risk as a result of an immediate loss of power while traveling speeds over 40mph.

Around May 20th, 2022, I was driving the pickup when it suddenly the engine turned off on me. I was travelling at approximately 40 mph on city streets and was able to control the vehicle and park the vehicle and restart it. That same week, I took the vehicle to Chevrolet on the city of Orange, where it was inspected. According to the mechanic, no issues were located. Nothing else was done to the vehicle and as a result, I fear the same issue will happen again in the future.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of automotive power, with an abnormal knocking sound coming from under the hood. No warning light was illuminated. The vehicle was taken to a local independent mechanic, where it was diagnosed with engine lifter failure. The vehicle was not repaired. The local dealer was not contacted. The manufacturer was made aware of the failure. The failure mileage was approximately 68,000.

Mileage: 68,000

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 40 MPH, there was a clunking sound coming from the engine. The check engine warning light was illuminated. A dealer was contacted. The contact stated that several unknown messages were displayed. The contact stated that an independent mechanic had inspected the vehicle and informed the contact that the engine needed to be replaced. The vehicle was towed to a dealer where it was diagnosed that the lifters and cam phasers needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 43,000.

Mileage: 43,000

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that upon starting the vehicle there was an abnormally loud screeching sound coming from the vehicle, and the engine seized. The contact stated that the transmission was shifting hard. There was an abnormal banging sound coming from the vehicle. There were no warning lights illuminated. The vehicle was towed to the local dealer where it was diagnosed and determined that the engine needed to be replaced. The vehicle was repaired. The Carfax and GM global connect portal warranty document noted an abnormal loud banging noise and front-end damage at 1 mile prior to the purchase, and an insurance claim was filed for the rear main seal. The manufacturer was contacted, and the contact filed a claim. The failure mileage was approximately 29,606.

Mileage: 29,606

While driving at 35 mph my check engine light, Service Parking Break light, ABS Maintenance light all came on and my truck lost power to a point I could not go over 10 MPH. It started chugging and running very rough. Fortunately I was close to home and got it in the driveway. I called the dealership to set and appointment, tried to drive it down my driveway and couldnt get it over 10 MPH. I called a tow company to take it to the local dealer I purchased from. After a couple days the dealership called and said there is a lifter problem but wasnt fully into the engine to see if there was more damage and would call me once more testing had been done. I have photos of the tow company tow bill ($169) and a photo of them lowering the bed to put the truck on it to haul to dealer if needed.

CEL with code P1098 - which is a coolant control valve issue. Engine is not properly distributing coolant potentially causing an overheating condition. Dealer informed me that it is dangerous to drive and it is recommended that it is left at the dealer until it is repaired. If driven and other issues occur do to this failure the warranty will not cover damages. The failed part - coolant control valve is on national backorder and there is no eta on when the part will be available, no vehicle has been provided and the replacement part appears to be no different than the original except for a different model number.

While driving on the highway the engine shimmered and shut down. I lost all steering and braking power. After 20 minutes I was able to restart and drive off the highway at a reduced speed. upon exiting the engine died again. The following day I took it to sunrise Chevy in Glendale Hights IL as this was just down the road from where it sat all night. Service rep called and said I need a new engine with only 81000 miles. It was major lifter failure he said. Job was done at a cost of 9417.89. With less than 1000 miles on the new GM engine I was coming home on [XXX] at night when I lost all power to steering and brakes, dashboard lit up. Made it to the shoulder and towed back to the dealer. Once again major engine failure. At least this one was under warranty. but still very dangerous on the highway. Needs to be a recall please. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 75 MPH, the vehicle failed to properly respond. There were no warning lights illuminated. The contact stated the vehicle shut off and failed to restart. The contact pulled over to the side of the road and attempted to restart the vehicle; however, the vehicle was not making a sound. The contact checked the battery and believed that the engine was inoperable. The contact towed the vehicle to the residence. The vehicle was not taken to a dealer or to an independent mechanic to be diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 87,005.

Mileage: 87,005

I was driving down the road at no more the 15 mph up hill in 4x4 when the engine shut off. No warning lights or noise and would not turn over. Had it towed to the local dealership to find out the main thrust bearing seized. I have to wait two to three months for a new engine which is covered under warranty. No wheels in the meantime. Only has 25,640 miles on it.

Camshaft bearing failure. Catastrophic engine failure while accelerating at left turn. Required full engine replacement. Incident occured at 59,982 miles on odometer. Even though vehical was under manufacture warranty it took approx. 18 days for GM to assume responsability. I was required to produce all maintenance records and was left without a vehicle for this time. Company was not clear on what work and parts of this repair would be protected under further warranty. Company did not provide exact specifics on replacement engine year and place of origin.

I was driving 60mph and went to accelerate a little bit more and my lifters went out and stated clicking.

Engine shut off on me while I was driving and wouldn’t crank back on. Had it towed to a dealership and they told me the engine is locked up and no idea why. It on has 61,xxx miles on it

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 55 MPH, the "Low Oil Pressure - Turn Off Engine" was displayed and the vehicle experienced a loss of automotive power. The contact pulled over to the side of the road to turn off and restart the vehicle; however, the vehicle failed to restart. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to a local dealer where the vehicle was diagnosed, and the contact was informed that the engine was faulty and needed to be replaced. The vehicle was repaired. The contact referenced NHTSA Action Number: PE25001 as a possible cause for the failure. The approximate failure mileage was 43,986.

Mileage: 43,986

6.2 engine failure second motor put in last week dealer took for test drive truck was towed back for second engine failure

I purchased this vehicle brand new is 2021 with the 6.2 liter engine. I have had all the regular maintenance performed as scheduled with 90% being done at a Chevrolet dealership. My truck has around 90,000 miles on it and now the engine is out. It started with showing low oil at 50% oil life left. When I took it to have it checked, it was 3 quarts low on oil. I did another oil change and was told I had to start an oil consumption test in order for them to review the issue. I had it checked every 1000 miles. The first and second check was fine. The third check was one quart low. They took it in and found that the spark plugs were oil fowled. Upon further investigation, they found that the cylinder walls were scored and had oil bypass in the cylinders. I have done everything right with this truck. Took care of it in all the ways I was supposed to. There is no reason what so ever for the engine to have gone out at 90,000 miles. There has to be more to this. I have looked it up and other people are having the same issue with the same engine. Why is nothing being done about this?

Had the check engine and recieved code p0303 cylinder 3 misfires i replaced fuel injectors on that side spark plugs ,wires ,spark plug solenoid,and still had the check engine p030 and would not run right my mechanic had to take the head off and replace all the valves of the motor costing me more than $5,000 i am so embarrass cause i was so honored to buy this silverado,but at 60,000miles this should nit happen why am i throwing alot of money to this truck gm you guys are letting me down i always by gm but at this point i dont know can you make this right,and no i dont want a 10 percent discount in a new one that a slap on my face .

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the vehicle was making an abnormal knocking sound while driving at various speeds and while idling. There was no warning light illuminated. The vehicle was taken to the dealer, where the engine lifters were replaced; however, the failure persisted. The vehicle was taken back to the dealer, where the contact was informed that the engine abnormal knocking sound was not sufficiently loud to issue a recall. The vehicle was not repaired. The contact related the failure to NHTSA Action Number: PE25001 (Engine, Engine and Engine Cooling). The manufacturer was not notified of the failure. The failure mileage was approximately 11,000.

Mileage: 11,000

What component or system failed or malfunctioned, and is it available for inspection upon request? The component that failed is the lifter in my 2021 GM truck, which caused severe engine damage. The vehicle is currently at the dealership and is available for inspection upon request. How was your safety or the safety of others put at risk? My safety and the safety of my child were significantly put at risk when the engine failure occurred on the freeway while traveling at 65 miles per hour. Multiple warning lights illuminated on the dashboard, and the truck became hard to control. I was fortunate to maneuver the vehicle safely out of traffic without harm, but the sudden loss of engine power could have led to a serious accident. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the problem has been confirmed by the dealership, which conducted diagnostics and determined that the lifter malfunction caused severe engine damage, necessitating a full engine replacement. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has been inspected by the dealership, which is an authorized service center for GM. However, it has not been inspected by the manufacturer directly, police, or insurance representatives. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? There were no warning lights, messages, or any other symptoms prior to the failure. The vehicle was driving normally when, all of a sudden, it began to shake and slow down,

Diesel engine continues to overheat, even after the oil temperature sensor failure dealership repair. Truck is very well maintained. However, common and trending issue amongst 1500 Silverado diesel owners is overheating which causes engine to loose power while driving and even get so hot it can catch fire. Warning lights appear only when problem is at engine failure point. Also, we lost power or reduced power on freeway which almost caused an accident and engine was smoking. We had it towed to Epic Chevrolet in Sacramento, CA. Within one week of dealership repair covered under powertrain warranty, dealership said overheating engine is due to a “new” code for coolant pump. In short, fire and driving safety hazard that can cost lives if not addressed by NHTSA.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while her husband was driving 40 MPH, the vehicle hesitated and jerked. The contact's husband depressed the accelerator pedal, but the vehicle lost motive power. The message, "Put on Neutral and Stop" was displayed. The contact's husband pulled over to the side of the road and the vehicle stalled. The vehicle failed to restart. The vehicle was towed to the dealer where it was diagnosed that the engine had failed and needed to be replaced. The contact's husband towed to vehicle to another dealer where it was confirmed that the engine had failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 90,000.

Mileage: 90,000

I was driving my 2021 Silverado when i was stopped at a 4 way waiting my turn. When it was my turn i made a left hand turn and and travelled a short distance going 20-25 mph when my engine made an odd sound and shut off in traffic!. I attempted to restart it and it did noting. Truck was towed to Hendricks Chevrolet where the truck was bought and received regular maintenance. When the truck stopped in traffic there were no warning lights on the dash before during or after. Once the truck was at the dealership for inspection i was advised That the motor was sized and that number 1 and 2 rod bearings failed and were ground in the crank journals. I asked how could that happen when the the truck has had regular oil changes by them and is there an issue with these engines? I was told that they see a few 6.2 engines with these types of issues.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving on the interstate at approximately 70 MPH, the vehicle lost motive power. The vehicle failed to accelerate over 35 MPH. The vehicle went into Low-Power Mode. The check engine warning light was illuminated. The driver was able to take the exit ramp and continued driving. The vehicle was taken to the local dealer, where it was diagnosed that the camshaft and cylinder head needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 91,000.

Mileage: 91,000

Baton Rouge Louisiana

Baton Rouge Louisiana

Engine failed, crank bearings let go. Truck lost power while traveling down the road.

Vehicle feels like it's hitting a bump down the road 65 miles an hour. There is no bump it's the transmission. My truck has 80240

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the vehicle came to a complete stop. The contact shifted into reverse and parked the vehicle. No warning light was illuminated. In addition, the contact stated that the failure had occurred while facing oncoming traffic. The vehicle was towed to the dealer where it was diagnosed with a failed check valve ball. The contact was informed that the check valve ball body and plates needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 52,648.

Mileage: 52,648

Engine Seized up on me while driving on the freeway. Four of the crankshaft bearings seized up and one of those four completely melted. good thing the freeway I was on was not too crowded, my dash just all of a sudden lit up saying shift to neutral to restart engine. I was able to get to the shoulder. I tried re starting the engine and nothing happened. I had it towed to Simpson Chevrolet in Irvine CA. they reported back to me and said Engine has seized and I will need a new engine, cost of $16,893. I cannot afford a new engine right now and have been left without a vehicle. GM has taken no responsibility for this failure even though all maintenance has been performed on time every time.

Had vehicle in for service for oil change and a loud clicking noise as well as misfire was the vehicle was fine to drive proceeded on my trip on my way back to my hometown the motor through a pushrod while on the highway

Truck died on busy road. Towed to certified Chevy dealer. They heard knocking noise did oil change drove it truck died again. Stated engine seized. Warranty dept denying claim saying truck driven 30 seconds to 1 minute after oil pressure light came on. But no lights came on for us and verified from diagnostic done at the Chevy dealer.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at approximately 35 MPH, the engine started to misfire. There was an unknown service warning light illuminated. The vehicle was taken to the local dealer, where it was diagnosed that left side valve lifters needed to be replaced. The codes displayed were 0329 (Engine/Fuel Exhaust) and 6581 (Modular Component) registering incorrectly. The vehicle was repaired. The manufacturer was not contacted. The failure mileage was approximately 15,253.

Mileage: 15,253

The first time it happened my Truck started shaking a lot on the highway and it left me stranded on the side of the road. It had around 20,000 miles on it. When it got repaired I was told it had to do with the lifters on the left side of the engine. Took them 2 weeks to fix the issue. The second time it happened was on the ramp getting on to the highway, this time at 58,000 miles and now the right side lifters. Except this time they couldn’t fix it and they are going to replace the whole engine and give me a new one. Only thing is that it's been in Chevrolet shop for over 2 months and they have an ETA of a new Engine arriving in about a month if even that. So currently don't have my truck.

Engine misfire, likely engine will need to be replaced

Around [XXX] on [XXX] the vehicle shut down with no codes showing or any warning. The weather was approximately 13* f. After many failed attempts to restart, and the electrical systems would not power down as if the vehicle thought it was still running. The only way to get the system to shut down was to disconnect the battery. i had to physically push the vehicle to a safe location. The next morning I attempted to diagnose the issue with no success. I had the vehicle hauled to the dealership from which it was purchased in Idaho to have it inspected. Tuesday morning I received word from the dealership that the engine suffered major failure. This will be the 3rd engine in the vehicle. I am uneasy about the dependability of the vehicle as I have recently discovered that this particular engine is having massive failures all over the country. So much so that the NHTSA has opened an investigation for the purposes of safety. I purchased the vehicle for the main purpose of pulling a snowmobile trailer with snowmobile to the mountains and also to tow my boat and trailer. Both of these activities require a vehicle in which I can depend on. While I am waiting for a back order engine the dealership and manufacturer refuse to lend a like vehicle, leaving destitute. I am hoping that this agency can offer some assistance, and I believe it's important that you are made aware of the hazard that this particular engine possesses. As I previously mentioned this the 3rd engine and As far as I can see this will occur again putting myself and others potentially in harms way because of a known issue. This does not make me feel confident of the safety of the vehicle. Be aware where i live there grades in every direction and extreme weather conditions from season to season. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

2021 Silverado LT Trail Boss 6.2 (production date: 01/2021) was taken to the GM/Chevy dealer (Ed Morse Chevrolet) on 01/29/2024. It was confirmed by the GM mechanic that the engine had failed (75k miles) due to a shattered camshaft and metal in the engine and a complete engine replacement is needed. Had prior complaint at around 6k miles for engine noise along with hard shifts and a check engine light that had appeared then went away on its own (documented). I was told by a GM certified dealership, it was normal in the new trucks and no action was taken. Unsatisfied, I made another appointment for a second opinion and only regular maintenance service was suggested and performed several days after, at a GM certified dealership. All oil changes have been performed in a timely manner. No forewarning prior to engine failure to include check engine light or any system messages, although trucks performance from the initial complaint did not subside. To my knowledge, this vehicles engine is weighing heavy on consumers safety with engine failure and is a well documented issue, leaving many stranded. Thank you!

The truck jerks when first driving and will jerk and lundge at various times and speeds. There is a almost grinding nosie. It often says "Reduced Engine Power" and the engine light comes one, the "Service ESC" notice comes on with the vehicle light, when this happens the truck will barely accelerate even if flooring the gas, continues to make a grinding noise. This happens frequently, but then lights go away, then come back on. Dealership pulled multiple codes (image attached). This is a huge safety risk due to failure of acceleration, and the jerking that causes the truck to jerk while in motion and slow.

With absolutely no warning, the 6.2 liter V-8 engine with 28,500 miles on it seized up solid and would not run. I was stranded in heavy Christmas traffic and completely blocked one lane. It was an unsafe situation. I had to summon a wrecker to come and tow the vehicle, and I called 911 for police presence to alert and direct traffic. The vehicle was at the Chevy dealer for a month while they installed a new engine. The dealer never fully confirmed what the cause was - I don't believe they really know - and I only have 10 months of warranty left. I am concerned about another failure and thought I should at least get the warranty on the new engine re-set to 60,00 or more miles.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 30 MPH following a school bus, there was an abnormal screeching sound coming from the vehicle. The contact stated that a message to pull over safely was displayed. The contact stated that the engine had seized. The vehicle was towed to the local dealer, where it was diagnosed that the crankshaft bearings and connecting rod bearings had failed. After further diagnostic tests, the contact was informed that the vehicle was not repairable. The vehicle was repaired with a remanufactured engine. The manufacturer was made aware of the failure. The failure mileage was approximately 16,000.

Mileage: 16,000

I brought in vehicle for check engine light is on for p0300 / p0308 had misfire tech removed engine valve cover and determine no movement in valve train components tech determine valve train failure lifters possible camshaft we would need to remove the cylinder head and replace valve train lifters.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed or while stopping the vehicle, the contact heard an abnormal sound coming from the top of the engine where the lifters were located. The contact stated that the spring in the engine had collapsed, causing the check engine message to be displayed. The contact stated that the dealer was contacted. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the lifters on the top of the engine were causing the DEF sensor to engage. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 90,000.

Mileage: 90,000

At 4K miles, the lifters of the engine went bad. It was determined a rod was bent and had to be replaced. At 26K miles, another cylinder went bad and had to be replaced. At 40Kmiles, serpentine belt had to be replaced. At 41K miles, another cylinder went bad and had to be replaced. Now, at 55K miles, I am getting the same issues with loss of power, engines stuttering and misfiring and will be taking the truck to the dealer on 1/28/25.

Engine failure

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 50-55 MPH, the vehicle went into LIMP Mode. The vehicle decelerated to 35-40 MPH. The contact stated that the vehicle was consuming an excessive amount of oil. The contact stated that the vehicle was consuming a quart of oil per month. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed with a failed lifter. The vehicle was repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 92,000.

Mileage: 92,000

Driving down the road and the vehicle shut off and said to restart. Wouldn't start back up. Check and found a 400 amp fuse was blown. Tested starter and was fine. Restarted the vehicle and it made a loud rattling noise and shut back off. Sent it to the dealer and they found that number 1 and 2 rods overheated and locked up the motor.

My 2021 Silverado with only 80,655 miles had to have the engine replaced. On 11/20/24, my vehicle indicated a P0303 code for miss-fire in cylinder 3. I took my vehicle to for repair to a local Chevy Dealership and was informed of the following: 1) Needed programming changes to the fuel injection based on service bulletin N242450631. This repair was completed by the dealer. 2) Needed a “tear down” for further diagnostic. It was determined that the specific code could not be repaired and the entire engine needed to be replaced which was done at my cost. The details on service bulletin N242450631 are limited and do not describe issues that could be caused by the fuel injector problem. Relative to service bulletin N242450631 fuel injector issue, based on my experience with my vehicle, I believe this fuel injector programming bulletin issue caused the engine malfunction and subsequent need to replacement. Before the bulletin repair was completed, I know that my vehicle engine surged often. Looking back now, this constant surging had to be hard on the engine and likely caused the failure. Regardless, if it wasn’t the service bulletin that caused the issue, a vehicle engine should last more than 80,000 miles. I believe GM needs to take responsibility for the engine failure which I believe was caused by faulty workmanship, design, computer engine programming, or some combination of these issues.

Lifter failure at 8629 miles. All warning lights went on at time of incident, truck would barely drive home and I had it towed into the dealership where they replaced the entire bank of lifters. This is on my repair order- "Checked and found dead mis on cylinder 4 and ticking noise from engine//performed compression test and found no compression on cylinder 4//removed passenger side cylinder head and found lifter bad causing push rod to bend//replaced all lifters on right bank and 1 pushrod//changed oil and filter//filled coolant and test drove and found all ok. I called Chevy at time of incident (1/21/22) and opened case# 9-7252876703 stating I wanted both banks of lifters replaced because I pull a 30' camper with my family and didn't want the other side to fail while I'm pulling 7000+ pounds. They declined to replace the other bank stating that since the vehicle had more than 5000 miles it did not qualify for both sides to be replaced and it was for only vehicles after 11/21 and mine was built 2/21. I still would like to get the other bank of lifters replaced under warranty.

Lifter failure on number 2 cylinder.

At start up check engine light, service esc, service parking brake. Code reader shows code P0304 misfire cylinder number 4.

2021 Chevy Silverado RST 6.2 Crankshaft Failure – Trust bearing / Main Bearing – Verified by GM dealership. This incident occurred without any prior warning indicators. The check engine light illuminated only after the engine began to seize, and the engine abruptly stalled. At the time of the failure, the vehicle was traveling at 60 MPH on a busy highway. Upon the event, the vehicle came to an immediate stop and could not be restarted. The engine failed to turn over, rendering the vehicle inoperable and partially obstructing traffic. The vehicle was subsequently towed to a local General Motors dealership, where it was determined that the failure was due to a crankshaft thrust and main bearing issue. The vehicle has 27,000 miles on the odometer.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving approximately 70 MPH and attempting to overtake a semi, the vehicle lost automotive power and stalled. The vehicle was later towed to the local dealer who diagnosed that the engine had seized and needed to be replaced. No further information was available. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 100,000.

Mileage: 100,000

I have just been made aware that there is a lot going on right now with the l87 6.2 motor. I purchased my truck last September so I e had it almost a year 1/2. I recently started having what seems like a misfire issue as of 1/20/2025. I have it scheduled to be checked out Friday 1/24/2025. I’m just reporting this to cover my back if any recall or anything comes about. In addition I’ve had regular oil changes and maintenance on the truck. It’s currently inspected and insured.

Started my truck and the check engine light was flashing along with a few other warming lamp lit up. When I went to drive the truck the engine started to make some noise, and didn't have much power. After being diagnosed by the dealer ship the motor needed new valves, lifters and camshaft. The bill for the repairs is going to be around $8,500 and GM is not willing to help with the costs.

Total catastrophic engine failure. Occurred at roughly 80,000 miles. Engine bearing shattered causing total engine loss. Needed to be replaced. Occurred in May 2023. There were no precursors to the event and the engine had been well maintained. I noticed an investigation of my vehicles engine and thought I should report this.

The crankshaft bearings failed causing engine to knock very loudly. I didn't get an engine light. Dealership did replace one bearing and said lifters we fault and replaced. This happened with just over 33000 miles on truck. I didn't receive any extended warranty from manufacturers for any problems that may occur in future from pieces of metal or other contamination to inside of engine.

I was driving 65mph down the freeway when the truck suddenly turned off and the dash told me to put in neutral and start again so I did just that. Made it about another mile and the truck completely turned off and wouldn’t turn back on there was nowhere to pull over or get off the freeway in that time frame so I was stopped in the middle of the highway with my family in the truck. Luckily a guy in another truck was able to push me over to the shoulder with his vehicle where I sat and waited four hours for a tow to the dealership. Two days later they called me and told me it’s spun a bearing and threw two rods and needed a new engine. I’m anal about servicing my vehicles they told me it just happens, but it was a brand new truck with only 35k miles. Ever since I got the new engine installed it’s constantly squeaking and they can’t seem to pin point the issues I feel like it’s going to happen again and this next time I’ll probably be out of warranty and it’ll be out of pocket for me to fix.

Major engine failure / main bearing failure with the engine burning oil and no warning signs no oil leaks or no burning oil smoke out of exhaust. I’m in the process of having the engine re built out of pocket on this date 1/19/2025 and have no documentation from repair shop at this time so I can’t up load any further information till I get it completed,

While driving down a major, extremely dangerous highway [XXX] in Pasco County, FL) my truck randomly shut off (with zero warning, no check engine lights, nothing) Thankfully, i was already in the right hand lane and managed to coast into a gas station. At 60, 375 miles on my 2021 truck I was 352 miles outside of the powertrain warranty, so I had my truck towed to the closest chevy dealership to see if they would good-will the warranty. They (Chevy) reported to me that there was a rod-knock with an estimate of $17,203.52 to rebuild the motor. I would also have to pay approximately $2000 (10 hrs of labor) for tear down of motor to even see if GM would POSSIBLY pay out anything on warranty. I am the only owner of this truck since day 1. I have every oil change record that was done as specified by the manufacturer. I have no means of transportation at this time. My truck is available for inspection. I am also unable to take out any other vehicle loans while I am forced to pay for a truck that now, has no motor. Also, I went in for a recall of a software update for the forward collision system. Previous to the dealerships update, the system was working fine. After the update, the collision system no longer works. This is greatly affecting my ability to work, and function as a member of society. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Engine stopped working while driving on major highway. Coasted to stop on shoulder. Truck was towed to nearest Chevy dealer, Parkway Chevy, Tomball, TX ([XXX]). Diagnosed bearings failed, camshaft froze and engine valve damaged. After rude treatment by service agent and service manager, towed truck to original dealer in Conroe, TX-- Buckalew Chev/Keating Chev (Nov. 25, 2024). They confirmed problem and truck has been sitting at their dealership since Nov. 25, 2024 waiting for re-mfgd engine. No timeline given for replacement. Bought another truck (Toyota Tundra -- [XXX]). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Engine lifter failure at 75 k miles

Vehicle has less than 35k miles. Vehicle started and operated normally Attempted to turn onto main thoroughfare from a stop. While still in drive, vehicle engine rev’d up but transmission did not engage. Attempted to cycle through gear selector with same result. Reverse is the only gear that allowed vehicle movement. Serious safety concern if this were to happen while traveling at any significant speed or if trying to merge or cross heavy traffic. Vehicle has not had an official diagnosis, but I believe this is a transmission valve body problem known to the manufacturer. There was no indication prior to this event of any mechanical or electrical problems with the vehicle. This issue could easily get someone killed.

I bought my 2021 chevy silverado 1500 Lt crewcab in march 2021 it had 5000 miles on it I had it for 2 weeks when it started shaking and the engine light was flashing. Took it in to auto nation cheverolet and they had it for a month. when I got it back and started the vehicle the engine light was still flashing. They had to change the lifters on Bank 1 because number 8 cylinder lifter was bad. why didn't they change all the lifters. 3 years later I am having the same issues getting a misfire on number 4 cylinder truck shaking and white smoke coming out of the exhaust. Also the dash lights up with service parking break and service esc when the engine light flashed. ofcourse my warranty is exceeded and GM knows about this problem with the 5.3 and 6.2 engines and won't issue a recall. it is a big saftey issue as your vehile looses power or shuts off. this shou;dn't be happening especially when your vehicle is fairly new. this is twice now this is happened in 3 years and now I have to pay out of pocket to get this fixed because gm won't issue a recall on this known problem that is happening to thousands of customers.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the vehicle jerked with the oil pressure gauge fluctuating. No warning light was illuminated. The contact pulled over and upon inspection, the contact discovered that the engine oil was extremely low. The contact added six quarts of oil to the engine. The vehicle was taken to the dealer, but the cause of the failure could not be determined. The contact stated that the engine was consuming an excessive amount of engine oil, and that six quarts of oil was added every 5,000 miles. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 56,400.

Mileage: 56,400

While driving down the highway on 11/03/2024, the engine warning light started to flash, I heard a clicking & Clanging noise so I pulled over as soon as I could find a safe place. Turned the ignition off & on again & engine warning light did not come back on, but still heard noises coming from engine. When driving home, the engine warning light came on again. I stopped again & turned the ignition off. When I turned it on again, the warning light quit flashing. I drove to the local GM dealer the next day, and they said it was a lifter problem. I did some research and found there were many lifter problems for a 2021 Silverado that I owned. I was hoping the dealer would replace both sides of lifters as they told me there was an issue & they were reengineered. Service department employee said they could only replace one side as that was all GM would approve. I told the employee that I did some research & there was a bulletin that said if mileage was less than 16,000 miles, both sides should be replaced. The employee said you surely have more miles than that & I showed her my odometer reading of 14,528. Again the employee told me that was all that GM would approve. I believe this is a safety issue if there is not a safe place to pull over. Also there should be a recall to replace these lifters with the reengineered lifters or extended warranty so us consumers are not stuck with a huge bill in the future as GM is aware this is a chronic problem.

When I started my truck in the morning a group of warning lights came on. This included check engine, ECS control, Parking Brake service I took truck to dealer that said I had bad or broken lifter in cylinder # 6.

Lifter failure of the right bank in 2021 at 19,000 miles. At the time of failure engine was 2.5 quarts low on oil. Ever since, this truck has been using oil excessively. I am currently involved with an oil consumption test. Of which over the last 5k miles I have had to have more oil added by the dealership.

Multiple times at varying speeds my 2021 Silverado has produced engine misfire codes. I have never been able to get to it quick enough to see what cylinders are misfiring so it always gives me a general P0300 code. The following first two times it was confirmed by Widrick truck and diesel in Carthage, NY. The last time it happened, the code disappeared before I would take it to the Chevy dealership. Widrick said they can’t fix the problem because they don’t know what it is, and Chevrolet denies there is a problem at all. The truck still has less than 50k miles on it

I took my car to the dealership four times because the engine light and the ESC light kept coming on. It kept saying there was a misfire so they changed the spark plugs and did a gas treatment after I left the dealership the light came back on so I returned the next day. They change one wire that’s what they told me. The problem was so I left engine light came back on. I returned the next day then they changed the wires I left the facility again. The next day I got them started the car, the same problem, engine light, and the ESC light and now they have the car in the shop and they need to break the engine down to see what’s causing the misfire and to find out if I need a new engine or not. Who is all that shit right now?

driving on [XXX] in Idaho stopped at rest area went to restroom came out my truck was smoking lifted the hood fire started on top left of engine got safely from truck and called 911 truck burnt to ground. Since i was stopped i was not in truck but if i did not stop it could of been fatal. My insurance has the truck now waiting on them for their investigation. there was no warning of any kind no dings going off no engine lights on since it burnt to the ground dont know if it can be determined what caused it but it would be nice to know why a 2021 chevy silverado with 43000 miles on it would just start on fire just had it serviced a week before this happed at a chevy dealer their is no recalls on my vin number writing this so maybe if this happens again that they will find the problem before some fatalitiy. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Cylinder 5 misfire due to collapsed lifter and bent pushrod. 3rd time this has happened. Dealer replace half of engines lifters at 4K miles, the other half at 19K miles and now it’s occurred again even with all the lifters replaced in the engine.

My lifters gave out on a brand new engine with 4000 miles on it. Truck was currently at 60,000 miles on odometer. I was traveling 75mph when everything locked up and all my lights on my dash board lit up. Causing multiple cars to swerve around as I guided the limping truck off the highway.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 45 MPH, there was an abnormal sound coming from the engine compartment. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the valve lifters, resulting in damage to the camshaft. The vehicle was repaired. After investigating the failure, the contact related the failure to Technical Service Bulletin Number: 19-NA-219. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 160,000.

Mileage: 160,000

While traveling on Interstate, the Check Engine light, Electric Parking Break service light, and Traction Control Light displayed for about 10 to 15 seconds. They all turned off at the same time and have not turned back on since. No limp mode was Vehicle has Service code for Engine Misfire with no cylinder indication. Spark Plugs, spark plug wires, and Coil Packs have been replaced. Vehicle has random flashing Check Engine Light for about 20 to 30 seconds while traveling above 30mph. Vehicle hesitation (jerking back and forth) is observed at continuous speed at 45mph and 51 mph. Vehicle has been brought to dealership for evaluation with no repair being completed. Dealership is not able to replicate issue.

When you drive the truck for at least an hour then you turn it off the entire front like vibrates or shakes . It almost feels like something is still turning in the transmission but everything is turned off. This particular truck has already had the engine replaced at 14,000 miles bc it was faulty. It also has issues with tires. The radio and lights also all go off for brief time and then it comes back on. At times the drives side seat belt will lock and it pins you to the seat where you cannot move and you have to remove the seat belt. It is becoming more of an issue. I believe the transmission to be going out. Today, I wasn’t sure if the vibration in the truck was going to stop. So I stopped driving the truck and went and got another vehicle to drive

My check engine light came on. When taking it to the dealership, they say it's the Catalytic converter. The converter is not an electronic part, so we replaced the o2 sensors and the check engine light came back on. I've taken this truck to several people who repairs cars, and The vehicle is only 3 years old , should not need to be replaced. A converter should last 10-15 years. In doing some Research, I found the the 2019 recalled for the ECM module. Causing the same issue as the faulty reading on a catalytic converter. I am now out of warranty due to being 2,000 miles over the limit.

Leaking radiator with no ETA on parts availability and this is also an issue with the coolant valve being on back order and both have many reports of this failing as well with some google searches. The dealership has my vehicle and has been inspected by them. I also do not understand why radiators are not apart of the powertrain when it cools the most critical part the engine. If the Radiator fails the engine fails.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the contact observed an excessive amount of condensation on the interior of the vehicle. The check engine warning light was illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the lifters resulting in misfires in the engine. The dealer also determined that cracks in the rear windshield glass guides resulted in excessive condensation in the vehicle. The vehicle was not repaired. After investigating the failure, the contact related the failure to Technical Service Bulletin: 18-NA-383. The manufacturer was notified of the failure, a case was opened. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was 9,000.

Mileage: 9,000

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while his wife was driving on two occasions at approximately 20 MPH, the vehicle lost motive power and failed to exceed 20 MPH. The vehicle was towed to a dealer where it was diagnosed that the #2 lifter needed to be replaced. The vehicle was repaired but the failure reoccurred a few weeks later. Additionally, the contact stated that the vehicle stalled on three occasions while stopping and using the Auto START/STOP feature. The vehicle was not able to be restarted. On the last occasion, the brake pedal was depressed; however, the vehicle failed to stop as needed. The vehicle was taken to a dealer where it was diagnosed that another lifter needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 6,000.

Mileage: 6,000

A couple of days ago, noticed some coolant under my truck. Took it to a dealer who informed me that the radiator has a crack in it. The truck has just over 53,000 miles on it and the warranty doesn't cover the radiator after 36,000 miles. We keep it serviced as normal and there hasn't been any extreme weather here in Oklahoma lately to explain the this away. Just irritating to pay the kind of money you pay for something that has this kind of issue already.

1. Trucks start/stop delays. When in traffic or crossing over lanes the truck fails to turn back on/start. When the truck does turn back on, the truck jumped forward almost sending me and my family into on coming traffic. 2. When trying to start the truck the starter will turn over constantly not turning on the truck (motor is turning over). The starter will time out after about 20+ seconds. The starter does this when auto start/stop is activated, so we get stuck in traffic almost causing accidents.

Lifter failure on bank 4. 23000 miles.

"Cylinder 4 misfire" was the diagnostic code - the vehicle is currently at Millennium Chevrolet in Hempstead, NY. First attempt at a fix was the fuel injector - second fix is replacing the rocker arm. Emissions is still showing as an error. I was traveling to the dealership for repairs when the misfire became so bad that multiple alerts illuminated on the dash. I was in stop and go traffic at the time going 30 mph. Thankfully I was near a place to pull over out of the flow of traffic. I tow with my vehicle and just returned from a cross country trip - if this happened while towing up a grade in the western half of the country, I don't know what I would have done. Yes, the dealership confirmed the problem and it is under the powertrain warranty. I do not know if GM Engineers have inspected the engine, however, it has been in the care of a GM dealership and service center since [XXX]. [XXX] the check engine light illuminated for the first time, yet went off after .2 of a mile when I turned around to return home. I made an appointment with service at the dealership the next morning ([XXX]) and was on my way there when I no longer felt safe driving it and called for a tow truck. [XXX] - check engine came on and went off. [XXX] - check engine came on again. [XXX] - check engine - on the way to the dealership - service parking break, anti-traction control. This is when I pulled over because the vibration from the misfire of the engine became much worse. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On the evening of Dec 19th, our 2021 Chevy Silverado 1500 DuraMax with 19K miles on it caught fire, burned, and was declared a total loss. We were on our way to go pick up our travel trailer as were we leaving for a trip on Xmas with our 2 dogs and my brother-in-law. Smoke started billowing out from under the hood and within minutes the front end was engulfed in flames. I have pics/videos. We’re ok but that was a scary situation that could have had a different outcome. We could have been on the highway towing our trailer with our 2 dogs and bro-in-law and who knows how long it would have taken the fire department to arrive on scene on the highway. There were no warning lights etc. to notify us. The truck gets driven, taken care of and I had just driven it the day before. We’re not aware or have seen any recalls. All info is on our Chevy app. We filed a claim with our insurance, and it has been paid off now, but in reality, "our fault" in insurers eyes. No cause was determined. That being the case, GM has closed claim and say not liable for personal property lost in fire, as insurance didn't contact GM with any mfg defects and insurance has already paid off the truck. We are repeat Chevy customers. This was our 4th leased Silverado and we also have a Traverse. The lease on the burned-up truck was coming due May 2024. We way overpaid on the milage. We're not filing a homeowners claim for lost personal property as insurance has paid off the truck and we don't want to be dropped. My question is wouldn't this be under warranty? Should the truck not be replaced? We didn't cause the fire. Much more damage could have occurred. People and pets could have possibly been injured or worse. If we were towing our travel trailer, that would be another big loss. The truck is no longer "available". Insurance told me today it's being sold for parts, which honestly kind of scares me. I wouldn't want a truck part that was in a fire, damaged or not. Videos not attached.

On October 2, 2023, the check engine light starting flashing and loss of power while driving. I was not far from the dealership where I purchased the truck on September 12, 2023, with 29.000 miles. They did diagnostics on it and found that the engine/powertrain computer/module needed factory reset. Then on October 17, 2023, I started my truck and heard what sounded like a knocking sound in the engine. It quit after about 1 minute during cold start. The next day it sound got worse, so I drove it into the dealership to have them look at it. There were no warning lights or any other warning signs. Was told by the service advisor after showing them the video I took of the noise that the lifters have failed. The repair was done a week later and that did not fix the issue. I was told the truck needed a full engine replacement. I'm very fortunate that I was not driving at the time when this failure happened, or I could have had an accident. It is now almost a month later and I'm still waiting on the engine to arrive for replacement.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, an abnormal, pinging sound was coming from the vehicle before the vehicle started to lose motive power while depressing the accelerator pedal. The contact stated that several unknown messages had flashed on the instrument panel during the failure. The vehicle was taken to a dealer where the contact was informed that the cause of the failure was due to the lifters. The lifters were replaced, and the vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 31,500. The VIN was not available.

Mileage: 31,500

Engine lifters failed at 36000 miles, causing the vehicle to misfire. Engine lifters failed a second time at 42000 miles after being repaired, again causing the engine to misfire.

Vehicle began to shudder on the highway, managed to pull off at next exit and drive to nearest gas station approximately 3 miles away from the highway. Vehicle was towed to neared GM dealership. Dealership has determined that the fault is caused by a failed or multiple failed Camshaft Lifters inside the engine. This has been reported to be a common issue with the GM 5.3L Engine with no active recalls. The vehicle shudder began on a highway during construction where the highway was restricted to one lane. There was an accident with bumper to bumper traffic where an ambulance required way. The vehicle was not in stable condition and could have caused safety risks to other drivers on the high way as well as my passengers and myself. There were no symptoms prior to the vehicle shudder, the Check Engine Light did not come on until about 3 miles of driving closer to the gas station. The Service is being warranted by GM. There are active GM tickets open. Vehicle is being serviced by Stickland Cadillac Buick GMC Chevy in Brantford Ontario Canada

Lifters failed 7,588 miles November 2021. Dealer replace both lifter banks since trucks mileage was less than 8k miles.

July 18th 2022 16,059 miles engine issues again. This time was 21 hours from home. Cause reported was oil pump failed. New engine to be installed. Asked if previous engine issues was resolved aka lifters but couldn’t get a 100 precent yes or no. Truck now has little over 30k and from time to time makes noises like lifters chattering. I pray it’s been addressed but fell it may still fail again. Just will it be under warranty or out of warranty next time.

I was driving one day and my truck started to misfire. I figured since it had 95,000 miles it was time for a tune-up. So I took my truck to the Chevrolet dealership and they originally quoted me $2,200. The rep and mechanic said they have seen many trucks just like mine having the same issue. They said it starts with something called a “rocker arm” breaking and then that leads to more severe issues. After a month of my truck sitting they came to me and said it will cost $8,100 to fix it. Basically they replaced the engine. My complaint is I’ve had many vehicles and none of them needed an engine replaced after only 95,000 miles. I later found out that the engine that’s in my truck is a 4 cylinder which is a very low power/small engine which is expected to handle the weight of the truck along with towing. I just believe it was a poor design and that engine is ill equipped for a truck and the dealership/manufacturer should bear responsibility for that.

I was cruising down the freeway at around 60 miles an hour when the vehicle started stuttering and shaking and I could not accelerate. The truck couldn’t get out of its own way and was a danger to my family. I took the truck to the dealer where they told me I had a lifter failure. They replaced the bank of lifters on the one side of the engine where the failure occurred and sent me on the way. I’m hearing the lifters is a common issue from multiple dealers. I’m not sure I feel confident in my vehicle any longer. I would prefer the dealer or manufacture to buy it back at this point.

The first incident that happened to the vehicle was two weeks after the purchase the engine light came on and the pressure dropped and the truck was riding rough and driving slow on a main street 35 miles from my house. The 2nd incident had around three weeks after being in the dealership for a few days with the same code and symptoms as the first incident. The third incident happened three weeks ago while on the highway the engine light came on engine pressure dropped and it drove rough and slow during consistent traffic and I had to pull over. I contacted the dealership and made an appointment. My vehicle wasn`t driven for two days until it was taken to the dealership. The engine light has come on many times through my ownership of the vehicle. I don`t feel safe driving this vehicle

Lifter failure at 24,500 miles

The transfer case has locked up several times causing me to wreck once. The engine misfires and does not give the MPG advertised. The life of my family has been put at risk with little to no care from the dealer after several attempts for service.

While driving at approximately 60 Miles per hour, two engine valve lifters on Cylinder 8 suddenly failed reducing the speed of the vehicle suddenly and stalling the vehicle out on a freeway. This mileage of this vehicle at failure was 16,996 miles.

The transition shifting make some sounds and feels ansafety wile you drive all dealerships say is normal Blacksburg va and salem Va said is normal I call GENERAL MOTORS THEY SAID IF THE DEALERSHIP SAYS NO IS NOTHING WE CAN DO NOW I HAVE A 45 K DEBT ON A TRUCK THAT NO WORKS RIGHT FEELS ANSAFETY TO DRIVE AND NO BODY CAN HELP

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 20 MPH, the vehicle started to stall and jerk. The check engine warning light illuminated, followed by the vehicle losing motive power and stalled. The contact was not able to restart the vehicle. The vehicle was towed to the dealer and the engine wiring harness chafing were zip tied, but the failure reoccurred. The vehicle was taken to the dealer and the connector to the ECM was replaced but the failure reoccurred again. The vehicle was not diagnosed. The manufacturer was contact, but no assistance was provided. The failure mileage was 6,000.

Mileage: 6,000

Cel flashing , traction control warning, stabilitrac warning, engine running rough, acceleration increased over normal driving. Happened multi times. After multiple restarts the cel light is on solid. Truck towed to dealer today. Have not heard back.

ENGINE LIFTER FAILURE AT 17K MILES. SIGNIFICANT LOSS OF POWER AT TIME OF FAILURE. ROUGH IDLE AFTERWARDS WITH TRUCK VIBRATING. NO WARNING LIGHTS AT TIME OF FAILURE. STOPPED VEHICLE AND SHUT OFF ENGINE. NUMEROUS WARNING LIGHTS ILLUMINATED UPON RESTART. VEHICLE TOWED TO DEALER. PASSENGER SIDE BANK OF LIFTERS AND RODS REPAIRED UNDER WARRANTY. SUBSEQUENTLY, DRIVER SIDE BANK OF LIFTERS FAILED AT 23K MILES. NO WARNING LIGHTS. AS BEFORE, SIGNIFICANT LOSS OF POWER AND NO THROTTLE RESPONSE. POWER LOSS POSES SIGNIFICANT RISK/DANGER WHEN MERGING INTO TRAFFIC. SECOND EVENT IS CURRENTLY AT DEALER FOR REPAIR.

1 and 7 lifter failure occurred. Truck failed while driving on a congested highway putting myself and others at risk when speed was speed was reduced and truck eventually stalled. Truck was serviced by local dealer and confirmed lifter failure. KNOWN ISSUE!!! NO WARNING PRIOR TO MALFUNCTION.

ESC failed. The 2021 Chevy Silverado (39495 mi) began to shutter and a slight bouncing of the rear end. The ESC light came on the service ESC warning on the dashboard then the check engine light began to blink at the same time the parking brake light came on. The dash warning switched to have parking brake serviced. The truck as best as I could tell applied the parking brake several times for no reason while at highway speeds and traffic on all sides. All warnings stopped when Auto engine shut down at exit ramp light. Previously brought into dealership for “Service ECS” and “Service Power Steering Drive With Care”. I was told “ unable to replicate “ (23194 mi). Vehicle was returned to me. They did confirm the dash warning was stored in the computer. I do not believe any warning (blinkers) or brake lights came on to warn vehicles behind me of the rear brakes being applied by the ESC.

The 2021 LT Trail Boss with the 5.3L engine started a really rough idle, engine knocking, random misfiring, had Service Emergency Brake, Service ESC messages on the display, check engine light and several other dash warning lights. The dealer diagnosed the truck with lifter fail apart (failure), intake valve push rod bent, and PCM failure. Odometer reading 19,368 miles.

Valve lifter failure resulting in bent rod engine failure.

On 12/26/22 my wife noticed a noise coming from the engine of the pick up truck. On 12/27/22 I started the truck and noticed a noise coming from the engine. I lifted the hood to try and locate where the noise was coming from but I could not see anything. There were no lights on the dash. I drove to work and parked it. 8 hours later I started the truck back up and the noise was still there. I began driving home and the truck made a spurted noise causing me to jerk the wheel nearly driving off the roadway. The truck is still making the noise. I contacted the Chevy dealer and they explained they would take a look into the issue. I’ve done some research and noticed that a bunch of 2020-2022 Silverado’s have been having lifter issues. I’ve also seen that the dealers are only replacing one side of the lifter banks and the others are failing 500-2000 miles after the repairs. I’ve also seen that people’s trucks have failed on highways and streets causing accidents and or traffic hazards. This is something Chevy needs to look into and fix to prevent any serious injury or death created by these issues. I don’t have photos but I do have a video of the noise that I could email if need be since I can not attach the video to this form.

Lifter failure

Anytime the weather gets colder than 32degrees Fahrenheit the DEF system freezes, which even if the tank is full makes the truck go into limp mode until it thaws out. The engine light pops on and off with no codes associated with it. Now the breaks and break lines are freezing when it gets below freezing. These are just a few of the reoccurring problems we’ve experienced since buying the truck less than a year ago.

Vehicle will not start and cranks until starter kicks out, about 30 seconds each time. I am afraid if this happens at a traffic signal or stop sign it could be bad. I took it to the dealer on July 30-2022. (2972 mileage) and they could not verify concern. I found a safety bulletin on a GM website for a extended crank/ no start. It is PIP5806D, The dealer says they know nothing about this. It lists a labor operation number 4088148, due to a corrupt signal from camshaft position sensor to the ECM. It has happened now 4 times, and current mileage is 6973. I have been dealing with Champion Chevrolet in Reno NV. It has started after 8 to 10 crank time outs and the battery starts slowing the crank speed down, but around 10 to 15 minutes have passed by then.

Engine oil cooler defect was diagnosed by chevrolet dealership. Everytime I drive the truck, it would leak oil and would have a burning smell all underneath the truck. The part was on backorder for over a month and a half. After this long wait of not being able to drive the truck, the dealership finally put a new oil cooler in. The problem persists and they are not able to figure out from the engineer what will solve the problem. I have been out of a truck for over a month and a half now with no hopes of the issue being resolved.

Per the repairing dealership, a lifter went bad. GM will not replace all of the lifters, just one side of the engine, due to the vehicle having over 8000 miles. Mine currently has 12,500. I no longer feel safe knowing that GM is replacing only half of the know defect with new parts that have the same issue (Told to me by the repair facility.) The vehicles engine could fail again, resulting in loss of acceleration. No warning was observed during, however after the fact, check engine and other warning lights were illuminated.

Engine misfire due to faulty valves which caused vehicle to lose power and stall. Check engine light began to flash on dash. Took directly to Chevrolet dealership. Dealership confirmed faulty valves and bent pushrod on left side of engine. Dealership to repair engine under warranty. Dealership stated that right side engine valves had already been replaced in November 2021 at approximately 13,000 miles. This was before I purchased the truck in May 2022 and I was not made aware of this repair. Truck now has 22,900 miles. Dealership stated that this is a known issue with Chevrolet 5.3 liter engine and they preform similar valve replacements on this engine at least once a week.

2021 Silverado RST, 5.3. Started having strange loud random clicking sounds when first starting. Would loose power, at take off or when trying to accelerate. This was at 9400 miles on the vehicle. Was not showing any check engine light or issues on dash. When examining engine compartment, found loose bolts, that had broken. Took it to local Chevy dealership, acted like there was nothing wrong with it. Instantly trying to get out of performing work. I had a feel it was going to be lifter issues. Found out while there around 4 thousand miles it already had lifters replaced. After debating with them for two days, and trying to convince them there was issues. They finally found multiple problems with lifters, misfiring, rocker arm not moving due to collapsed lifter. They found broken bolts in cylinder heads. Ended up having to replace all left and right side lifters.

My truck has had lifter issues twice now. Finally, a new engine had to be installed and I have recently began getting the check engine light along with sputtering sensation while the truck is on idle. Also, I purchased this truck, brand new, and I was without it for close to six months.

Collapsed Lifters an Bent Push Rods

Lifters blew in my brand new engine with only 18k miles while driving. Engine was shaking & knocking & lost power when trying to accelerate.

I have a 2021 Chevy Silverado. The #3 Cylinder has failed and an all new lifter kit needs to be installed. Truck was knocking violently and died. Dealership stated the parts on back order nationwide and they have no clue when replacement parts will arrive.

At 7,316 miles my 2021 Silverado 5.3 V8 had lifter failure while driving, the truck would not accelerate correctly and I was forced to pull off the road, luckily it was able to turn off at the next road before the vehicles behind me caught up. The check engine light was blinking and was making a lot of popping noises. I was able to take back roads and drop it off at the dealership for repairs.

This 2021Chevrolet Silverado 1500 LT Trail Boss I purchased new April 2021. Since I have owned it the check engine light would flash randomly with or without a load and now just this past weekend (7/17/2021) the check engine light stayed on. Took it to the Chevy dealer for repair and was told it was a lifter problem. I recently just purchased a camper, well under GM allowed towing capacity, and worried that if the engine should fail either up hill or down hill that there could be loss of control of vehicle from other systems shutting down.

Vehicle began having issues at 3 months old... Random service messages, defective headlight, wierd engine noises at startup and stalling upon acceleration/deceleration. I took it to the dealer several times about the issues I were having but they always say they aren't able to replicate any issues. 3 months later I was driving on the highway and the engine started knocking. Had it towed to the dealer and it took them 6 months to replace engine, tcm, starter, and other parts. After finally getting the truck back, it was still stalling and there was a check engine light... Dealer did not reassemble the vehicle properly and several parts and bolts were still missing. It went right back in the shop and catalytic converters were replaced. I also mentioned missing parts and bolts. I get the truck back again and it still seems like it wants to stall. I was turning into a parking lot a few days later and it seemed like it wanted to cut off. While I was distracted trying to see if the truck cut off, I hit a small pole... Truck was damaged way more than it should have been because the dealer did not reassemble it properly. Body shop said my bumper was only held on by 2 bolts and several other bolts and pieces were missing. They said if my bumper was attached properly the damage would not have been as bad. The vehicle was already unsafe because of stalling and the dealer made it structurally unsafe as well... I have opened cases with gm and they aren't doing anything about it. Here this truck is 14 months old and it's been in their possession more than mine... I have asked them about replacing the vehicle and they insist on fixing the issues but never do and I end up driving an u safe vehicle around.

Add 1 more victim to the ongoing and growing list of GM owners of vehicles with 5.3/6.2Lmotors with DFM lifter failure. 50 miles after returning from a 500 mile trip from N. Wisconsin fishing trip this motor threw in the towel. Dealer assessment cylinder #6 lifter failure with an extra bonus of damage bad enough to require replacement of entire cylinder head! This motor has 11K. miles on it, and I have had oil changed multiple times as I am old school and don't buy into the whole 7500K. thing. Guess I should have saved my cash for something more fun! Check engine light did not come on till almost 2mi. after vehicle started running badly, flashing check engine light did not come on till I was almost home 15 mi. Had it towed to the dealer on my own dime!

Speed limit 70mph and driving on the highway, suddenly the vehicle began to shake and the engine light came on and the vehicle was making a forced deceleration to 40mph. Other vehicles had to swerve to avoid my vehicle, as I was attempting to pull off the highway safely. "service brake system" alarm also came on. The manual advised when getting this alarm to have the vehicle towed. Once at the dealership this note was on my service papers " Customer stated engine light was on and truck running rough and shaking, review of DTC's showed cylinder misfire on #3, tested showed possible issue with spark plug. Relocated coil to different cylinder to see if issue followed. Misfire still noted on cylinder 3, replaced spark plug and conducted test drive and note misfire still present on #3. Removed valve cover and noted failed lifter on intake valve for cylinder #3. All lifters replaced on left side of engine." The dealership stated that "this is a known problem for the 5.3L V8Ecotec engine, that the lifters FAIL." I am a female, I was traveling alone and had to find tow service and pay up front. Once transported 20miles to the nearest dealership, on a Saturday afternoon, I was stranded at a hotel for 2 days waiting for the dealership to open and check out the vehicle. If this is a "known" problem with this engine, THEY SHOULD BE RECALLED. Now I get to worry when the other side of the engine's lifters will 'fail' so they can be replaced under warranty. This is unacceptable in an almost new 2021 truck with 20,000 miles on it.

Vehicle engine has experienced engine lifter failure at 28,000 miles. Engine began shaking violently, check engine lights flashing, traction control light, and stability control lights all came one while driving on the highway several hours away from home. Vehicle had to be towed by Chevy roadside assistance to the nearest dealership. Chevy dealership inspected and said they have to order new lifters for my engine and it would take several weeks for repair.

The 2021 silverado v8 randomly started making a knocking noise. The steering wheel would shake randomly as I accelerated and stayed above certain speeds. I’m barely able to drive slowly residential speeds at most. If I drive any faster I’m worried for my safety that the car while break down in the middle of a busy road posing a danger to my family and those around me. I’m not sure if this is a lifter issue, or engine issue but it seems to be a widespread issue that I haven’t recurved any recall notice for.

Truck started having a rough idle and was popping and banging while driving. It was hesitating while driving in traffic and would slowdown and jerk while trying to drive to the dealership. It stalled at red lights multiple times. Once it got to a dealership and they identified it as #4 cylinder lifter was malfunctioning. They have not yet disassembled the engine yet to find out the extent of the damage. This is a known issue with these trucks and GM won’t issue a recall to proactively fix the issue before more damage is done to the motor. Some of which may not show up until after the warranty expires. There was no warning light or check engine light on at anytime. The dealership service department was very surprised by this. Now I’m without my truck for at least 2 weeks with no loaner of voucher for a rental. The truck has less than 19,000 miles on it and has had all regular maintenance done at a dealership.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving approximately 10 MPH, there was an engine misfire and then a knocking sound started coming from the engine. There were no warning lights illuminated. The contact had the vehicle towed to the dealer who stated that there might be a failure with the valve lifters; however, a diagnostic test had not been performed. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 40,000.

Mileage: 40,000

"no start" issue. Intermittent no start increased in it's frequency until it wouldn't back in July 2021, it had approx. 9600 miles on it. Had it towed to dealership. They could not recreate problem. I raised hell, and started reading that others had similar problem. A TSB came out that advised tech to install .5 shim. That seemed to have worked until recently late May 2022, have appt. with dealership again. They didn't do a scan the next day to pull a code since one might have shown up at that point. Most likely nothing there now. truck has been driven an additional 10K miles since initial problem and now shows 21400 miles. I can't have this problem every 10K, since soon this will be coming out of my pocket. and it needs a fix as others are having the same problem. GM has had well over a year to sort this out so I'm hoping if it isn't the cam sensor it's something else fairly straight forward. Heading in for service again on 6/15/2022 for same complaint.

I was driving and noticed several loud clunking noises coming from the Engine bay. The truck began to cut out, shake, and misfire. My dash began to flash and state I had a parking brake failure. I had no choice but to be towed. I have just shy of 17,000 miles. The dealership stated I had two lifter and 1 rod failure. They replaced the rod and all lifters on one side of the engine. I took the truck home for one night and it broke down again. The dealership stated it was fixed for a second time. When I picked it up again, I made it 1 mile down the road before the truck had the exact same symptoms with shuddering and misfiring. It is at the dealership for a third time. I was surprised to fin several class action lawsuits now filed against gm concerning the lifter issue. YouTube is full of lifter issue videos. This should be fully investigated and obviously warrants a recall for lifters, rods, and the camshaft.

On April 29, 2022 between 4:45 - 5:00 pm Eastern, I was dropping off my son at work when I suddenly experienced a variety of Truck Diagnostic Error messages on the front driver display window. In addition my OnStar advanced diagnostic alert system informed me with the following system issues: Engine and Transmission; StabiliTrak stability control; Antilock Brake; and Emissions. At that moment the truck experience a cut in power and slowed down with a knocking sound coming from what seemed under the truck. I slowly proceeded to drop off my son and drove back home and parked the truck. Truck was towed to local Chevy dealer on Friday of that day. A preliminary diagnosis was done Saturday, April 30 suggesting an Engine Lifter issue. On Monday, May 2, 2022, a final diagnosis determined engine lifter failure on one side of engine bank. Vehicle is still under Warranty with 17,400 miles on it.

GM USES/USED SUBSTANDARD ENGINE COMPONENTS i.e. LIFTERS. GM KNOWS THSES ARE PRONE TO FAIL, YET ONLY REPAIRS THE VEHICLES THAT ARE AT AN AUTHORIZED DEALER PRIOR TO SALE. ALL THE VEHICLES THAT WERE ALREADY SOLD WILL NOT BE REAPIRED UNLESS ITS BROUGHT IN FOR SEVICE, GM WILL NOT NOTIFY CUSTOMERS OF THIS ISSUE. ALSO GM FAILS TO STOCK THESE PARTS EVEN THOUGH BY THERE OWN SERVICE BULLETINS SUBSTANDARD PARTS WERE USED TO BUILD THESE VEHICLES. GM WILL NOT SUPPLY LOANER VEHICLES TO PATRONS WHO DO HAVE THIS SERVICE DONE NOR WILL THEY TELL CUSTOMERS THAT THE PATRON COULD RENT A VEHICLE AND GET REIMBURSED FOR SAID RENTAL.

While driving East on I-24 with my granddaughter. I felt a thump much like hitting a big dog or something in the road. I looked at my 10 year old granddaughter, she was looking at me, she said what was that? I said I don't know, but it happened again in about 1/4 mile down the road. We traveled about another 1/4 mile when the truck started sounding like a machine gun being fired!! My granddaughter started crying as she was scared, I pulled over into the emergency pull off to check my truck. It was running good now and NO ENGINE LIGHT was on. So I continued driving toward Clarksville, TN. although I considered turning back and heading home. I thought maybe it was water in the gas or something. After arriving in Clarksville to pick up my two grandsons we started home. As soon as I got on I-24 west the truck started the same thing again. Felt like we hit a big dog and then started sounding like a machine gun being fired. This time the ENGINE LIGHT DID come on. I was afraid the truck was going to quit running and there I was with 3 grandkids on a very busy I-24!! I contacted Patroit Chevrolet where I purchased the truck at. They told me it would be 6 weeks before they could look at my truck!!!! I hung up but called back as I was afraid that I couldn't make it home, the truck was running bad!! They found that it had dropped a lifter, it had only about 6,300 miles on it!!! They had it for about 3 weeks. Now, I find out that GM has had a lot of problems with these motors, "A LOT of PROBLEMS"!! I,m sure the problem WILL happen again, I am hoping no one gets killed when it does. THIS IS A DANGEROUS PROBLEM!!! GM needs to replace these motors or buy them back or something!!!

I have a 2021 Silverado 6.2 being repaired for failed lifters. I see this is a common trend and can cause hazards when pulling over for a faulty motor. 10 speed Transmission downshifts from 2 to 1 harsh with rpms jumping up causing for me to apply more brake pressure to stop. I have had a few incidents when I get close to the vehicle in front coming to a stop. I have taken vehicle to dealer for issue and they couldn’t replicate issues. Check engine light has popped up once or twice but never stayed on long enough to throw a code.

Engine valve lifter failure at 20,000 miles; engine hesitation and power loss. Error to parking brake and to electronic stability control. Chevrolet to replace damaged lifter but refused to replace both banks of defective lifters. As a result of dysfunction I was stranded 1200 miles from home and have been waiting 2 weeks for repair. Still 1200 miles from home with 2 kayaks, 2 bikes etc.

Engine lifter failure, excessive engine noise, loss of power and responsiveness, strange sounds from engine and runs very rough especially during acceleration. Multiple warning lights associated with the valve failure. Cruise control no longer works.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 55 MPH, she heard abnormal knocking sounds coming from the engine. The contact veered to the side of the road inspected the vehicle but found no issues. The contact continued driving for a while before the failure recurred and the sound was much louder. The check engine warning light illuminated. The vehicle was towed to a local dealer to be diagnosed. The contact was informed that two rods had gone through the engine block and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 6,000.

Mileage: 6,000

At 7000miles truck had sudden engine failure, pulled to side of road and had towed. Dealership said it has a conmonly occuring failure of valve lifters causing bent pushrods.

Lifters in the engine failed causing the truck to sputter and shake going down the highway. Barely could hold it in the road. Truck wanted to stall out while driving. Truck was fixed and made it 30 miles before the same thing happened again. Chevrolet has dropped the ball and needs to be held accountable for this problem before someone gets hurt or killed.

Driving down the road and out of know where engine starting knocking and lagging, idled rough. Drove to dealer lifter failure was what was diagnosed. 10000 miles on the truck driven easy, no towing or anything. Dealer also informed me 3 other silverados were there for the same problem! Ridiculous!!

Electric steering control and driver assist malfunctioning along with engine misfire Been to the dealership 3x they have reproduced the issue unable to repair Chevy also notified apparently many other vehicle of my same type have this issue Happens daily till vehicle has run for a bit Unsafe till then Started at about 13 k miles still ongoing

My vehicle lost power to accelerate on an on ramp just before a bridge over the Wisconsin River and I was not able to merge into traffic. I was nearly put into the guardrail just before the bridge and I had to wait for the semis and other vehicles to pass and give me an opening. I drove straight to the closest GM dealership under reduced power. I was accelerating and would have been able to easily merge until suddenly my engine seemed to stall/lose power significantly. This caused me to slow down and not be able to get over as there were two semi trucks in the northbound lane of highway 39 in Kronenwetter WI. I have now found out that the power failure is due to something that is, according to my rough calculations happening very frequently to my model of truck for the years 2019, 2020 and 2021. I am curious to know how many trucks per year? One dealership told me they do about 2 trucks per week in Wausau and a dealership in Green Bay WI told me 3 per week. Rough math tells me that spanning 4500 certified GM service centers equals over 400000 vehicles per year. When does this become a safety recall if not a general recall to protect consumers? GM knows about this problem however they continue to put in the same faulty lifters in the vehicles and only fix/ put in upgraded lifters when they break. How can a car manufacturer put vehicles on the road and sell them knowing there is a potential no only to break but in instances like mine or others I can't even envision, cause an accident or worse?

Approx every 1,500 miles engine will crank for ~25 seconds and not start. This creates two safety problems 1) Defective part in engine could cause metal shavings in engine or some other form of part failure resulting in seized engine along with fire or accident. 2) Vehicle has start stop feature. Failure of vehicle to start at an intersection could result in a traffic accident. Vehicle was serviced at Chevrolet dealer where they stated vehicle could not be repaired without demonstration of the problem. Dealer did not inform me about, inspect or make repairs for two service bulletins that I found on the internet for the issue. One service bulletin is for a defective engine part. The camshaft target wheel could be bent and contacting the timing chain. The other dealer service bulletin is for a software update to correct a similar starting issue. For review, I uploaded the dealer service report along with both dealer service bulletins. I'd really like NHTSA to look into why GM is not informing vehicle owners about the software issue or the known defective engine part.

Too whom it May concern Our 2021 Chevrolet Silverado 1500 had check engine light come on 7/5/21 called Chevy Service department was told Bring vehicle in if Light flashes, Light went off Service department said if it happens again to bring it in . It happened again 10/12/21 took vehicle in to service was told it was something too do with lift & Technician reset something & Did our first Oil change as this was a New Truck bought in 01/13/21 from them . Well 10/25/21 My Wife & I were Driving when we heard a loud banging noise coming from Truck we Also lost Power & Truck was shaking Bad . Called Dealership asap was told bring in Now . Service department said Engine was basically shot that engine lifters went bad & Probably had a bent pushrod. So Basically a catastrophically engine failure on a Brand New 2021 Chevrolet Truck with 7000 miles . Had this Happened on the highway @ highway speeds with sudden lost of Power This could lead too an accident & possibly a loss of Life . The Sad part is this has been a ongoing issue with the 5.3 & 6.2 engines since 2018 & Chevrolet is aware of it. They have No Fix and are installing the same defective Parts back only too have same issues again & again. Spoke with Corprate & They have No answers or cares my Wife said she would never drive Truck again especially since admission from a Chevrolet service Tech said it will happen again. This has been Long enough Chevrolet must recall these Vehicles & Apparently its All GM engines 5.3 & 6.2 whats it gonna take someone being Seriously hurt or Killed!!!!

Turned on my 2021 Chevy Silverado in my driveway and esc service notification popped up and check engine light popped up as well and then a loud clicking sound came from under the hood which turns out to be a bad lifter.

Engine began to shudder, vibrate and lose power on the highway. Multiple codes were eliminated - check engine, service park brake, service ESC, service emissions system. Loss of motive power is a safety issue. Vehicle currently at the dealer for service. I have been notified it is a lifter issue and major engine repair required. GM Authority and other online forums identify this as a known major field issue and continuing to grow.

while stopped,engine running,in gear,foot on brake the truck lurched forward approx 2-3 feet. when i tried to pull forward the engine was revving a much higher rpm's. moved down road approx. 1-2 miles, tried to turn around to return to a dealer near by and truck would not go into reverse...on-star reported to get engine/transmission service soon. reported to dealer, they checked the (code)? truck continued to run well....till it happened again....now it has happened a third time dealer has ordered parts to try to correct. dealer is trying, but no one seems to know what to do...

Driving along a highway at 65mph and a lifter dropped or rocker arm failed catastrophically. Loud audible pops and bangs without warning no "warning lamps" lights or notifications at all. Towed it to dealership under their recommendation as opposed to driving it there. Also there's a clicking metallic jingle jangle in the driver side from unless 4wheel auto is engaged.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 65 MPH, the vehicle inadvertently stalled. Several unknown warning lights including the check engine warning light and the transmission warning light were illuminated. The contact stated that he was able to veer to the side of the road and turn off the vehicle. The contact stated that he restarted the vehicle, but the vehicle was shuddering and making abnormal sounds while driving. The vehicle was taken to the nearby dealer who diagnosed that it was a manufacturer’s error and that the engine and the gasket needed to be rebuilt. The manufacturer was notified of the failure and advised the contact that they would replace the engine instead of buying back the vehicle. A case was opened. The vehicle was not repaired. The approximate failure mileage was 15,000.

Mileage: 15,000

The lifters in the truck are failing, a brand new truck 12,000 miles on it and the lifters have failed. Which is also leading to an oil problem. They are trying to only fox one bank of lifters instead of replacing both. Due to them wanting to wait until the fail. They have known about the problem and i bought the truck from them not knowing that the engine was a faulty engine. When you pay 70,000k for a truck you are expecting it to last a lot more than 6 months. Which is also causing the bent pushrods on the truck. I bought the truck brand new at the end of January, for the lifters to fail, valve springs, and for bent pushrods, I’m estimated to be out of my truck for the next 3/4 weeks which would bring it close to lemon law

Faulty lifters causing the truck to throw piston rods. This causes malfunction of the traction control, parking brake, transmission,auto locking rear differential. I have had my truck in the shop 3 times for the same issue all within the 1st 10,000 miles. This particular motor has been taken out of production. Upon speaking to mechanic managers at multiple GM dealerships they were not surprised and personally gave me advice on the lemon law. My truck, which is my 1st brand new vehicle, has been out of service now for a total of 45days. I have still made payments up to date. The dealership offers a car or small suv while repairs are being completed, not a truck! Beware of the 5.3litre ecotec3 v8 motor.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at various speeds, the vehicle would not accelerate when the accelerator pedal was depressed. The contact also stated that a loud knocking sound was coming from the bottom of the vehicle while reversing. The contact stated that the check engine warning light was illuminated. The vehicle was taken to a local dealer where it was diagnosed with the timing belt needing to be replaced. The vehicle was repaired however, the failure recurred. The manufacturer had not been informed of the failure. The failure mileage was approximately 2,500.

Mileage: 2,500

Transmission slipped then went limp at 35-40 mph. Truck would not accelerate at all. Had towed back to dealership.

Engine started to backfire/pop through the intake while driving. I had it towed to the dealership as it wasn't drive-able. They told me it was major engine failure, broken valve spring or bad lifter but won't be sure until the engine is torn down. I was driving on the interstate and the engine immediately started popping which slowed me down drastically. This was on an interstate road where there is a lot of traffic and it is higher speeds than regular roads. I was afraid of being hit from behind before I could pull of the road. The dealership confirmed it has major failure but have not inspected it yet. There was no symptoms/warnings or warning lights.

While driving down the interstate about 450 miles into my trip, my engine started missing and knocking. I pulled off on the next exit, about 2 miles, to call for a tow. The repair from the dealership states: "CS: CUSTOMER STATES STARTED KNOCKING AND WOULD NOT ACCELERATE. Caused by verified customer complaint- heard loud ticking/knocking noise coming from the left bank- removed [left bank] valve cover and cranked engine and found the cylinder #3 intake rocker arm wasn't moving. Upon disassembly found the #3 exhaust push rod bend." The invoice shows the replaced the following: Installed 12680871 :SL-N-Lifter (00459-BPCKT) Qty: 8 Installed 12622325 :SL-N-GASKET (00289-CT) Qty: 1 Installed 12657093 :SL-N-GASKET (03270-CKT) Qty: 1 Installed 11611976 :SL-N-BOLT (00293-CKT) Qty: 1 Installed 11546959 :SL-N-BOLT (00293-CKT) Qty: 9 Installed 12664915 :SL-N-GUIDE (00439-CT) Qty: 2 Installed 12619787 :SL-N-GASKET (00423-CKT) Qty: 1 Installed 12619828 :SL-N-ROD (00426-CKT) Qty: 1 Installed 12346290 :N-COOLANT (08800-BOPCKT) Qty: 1 Installed 19419227 :SL-N-FILTER (01836-BOPCKT) Qty: 1 Installed 19352900 :N-OIL (08800-BOPCKT) Qty: 8 Installed 12679462 :SL-N-PIPE (03163-CT) Qty: 1 Installed 12677002 :SL-N-PIPE (03163-CT) Qty: 1 removed air intake- fuel lines- valve cover- exhaust manifold- cylinder head- lifter guides and lifters- replaced bank one lifters and carriers, and #3 exhaust push rod, reassembled in reverse order and test drove 30 miles. vehicle is operating as designed" Mileage in: 8008 Mileage out: 8035 The dealership had someone drive my truck back to me from Brewton, AL to Clinton, TN on 05/20/2021). I drove my truck to see how it felt. I immediately smelled antifreeze, but the temperature gauge read 210 which is normal. Upon accelerating up hill, I thought I felt a miss in the engine. When I arrived at the Clinton, TN dealership, the technician plugged in the code reader and it showed a misfire in the engine. I left the truck with them and they gave me a loaner.

TL* THE CONTACT OWNS A 2021 CHEVROLET SILVERADO 1500. THE CONTACT STATED WHILE DRIVING OFF FROM BEING STATIONARY, THE VEHICLE STALLED WITHOUT WARNING. THERE WAS NO WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO SMART CHEVROLET CADILLAC BUICK GMC (3 SMART DR, WHITE HALL, AR 71602, (870) 543-2200) BUT WAS NOT YET DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE HOWEVER, THE CONTACT WAS STILL AWAITING A RESPONSE. THE FAILURE MILEAGE WAS APPROXIMATELY 300. THE CONSUMER STATED THE VEHICLE WAS REPAIRED. A COIL PACK WAS REPLACED.

Mileage: 6,000

----WARNING LIGHT FLASHING AT 103 MILES ON VEHICLE ,, DEALER RESET ----450 MILES ON VEHICLE STALLING ,,WARNING LIGHTS ECM - ENGINE SYSTEMP2635 THE ENGINE AND TRANSMISSION SYSTEM IS NOT PERFORMING AS EXPECTED. AN ISSUE HAS BEEN DETECTED IN THE FUEL MANAGEMENT SYSTEM USED TO MAINTAIN, CONTROL AND MONITOR FUEL CONSUMPTION. IF THE CHECK ENGINE LIGHT IS FLASHING, A MISFIRE CONDITION HAS BEEN DETECTED. A MISFIRE INCREASES VEHICLE EMISSIONS AND COULD DAMAGE THE EMISSION CONTROL SYSTEM ON THE VEHICLE. PLEASE REDUCE VEHICLE SPEED, AVOID HARD ACCELERATIONS, AVOID STEEP UPHILL GRADES, AND REDUCE ANY CARGO LOADS SUCH AS A TRAILER. IF THE VEHICLE IS CONTINUALLY DRIVEN WITH THE CHECK ENGINE LIGHT ON, THE EMISSION CONTROLS MIGHT NOT WORK AS WELL, THE VEHICLE FUEL ECONOMY MIGHT NOT BE AS GOOD, AND THE ENGINE MIGHT NOT RUN AS SMOOTHLY. THIS COULD LEAD TO FUTURE REPAIRS. VEHICLE WAS TOWED TO MALTBIE CHEVY AND HAS BEEN THERE SINCE FEB 24TH

Mileage: 450

ON THURSDAY FEB 18TH IS WAS SNOWING WHEN I LEFT WORK, DROVE AROUND THE BELTWAY APPROXIMATELY 30 MILES GOING ON AVERAGE 30-40 MPH.NO ISSUES JUST BAD ROADS. RIGHT AFTER I LEFT THE HIGHWAY AND TURNED ON TO A MAIN ROAD, I WAS APPROXIMATELY 1 MILE ON THAT ROAD IN THE MIDDLE LANE DRIVING STRAIGHT AT ABOUT 25-30 MPH WHEN MY NEW 2021 SILVERADO (5000 MILES) LOSS POWER. THE BATTERY AND CHECK ENGINE LIGHT CAME ON WITH NO ENGINE POWER. AS THE VEHICLE WAS COASTING ATTEMPTED TO GET OFF THE MAIN ROAD, BUT DIDN'T MAKE IT DUE TO THE SNOW COVERED ROADS AND SLUSH. ENDED UP IN A MERGE LANE STILL IN TRAFFIC AND WAS ALMOST HIT NUMEROUS TIMES. TRIED TO RESTART AND GET TO A SAFE LOCATION, BUT WHEN PUSHING THE START BUTTON THE SILVERADO WOULD CRANK EXTREMELY LONG PERIOD OF TIME AND THEN FINAL CUTOUT. WAS ON THE PHONE WITH ON STAR WHERE THEY PUT ME IN CONTACT WITH THE LOCAL POLICE DEPARTMENT WHO NEVER SHOWED AND THEN LEFT ME A MESSAGE THEY WERE COMING OUT DUE TO THE INCLEMENT WEATHER. THANKS. AFTER TALKING WITH POLICE DISPATCH ON STAR SETUP A TOW TRUCK, BUT GAVE THEM THE WRONG ADDRESS WHICH WAS MORE THAN AN HOUR AWAY FROM MY LOCATION. ONCE BACK ON THE PHONE ON STAR STATED THEY HAD TO CALL THE SAME TOW TRUCK DRIVER/COMPANY WHICH OF COURSE HE WAS OVER AN HOUR AWAY. ONCE THE TOW TRUCK DRIVER ARRIVED 3 HOURS AFTER MY TRUCK BROKE DOWN HE SAID HE WAS ORIGINALLY ONLY 10 MINUTES FROM MY LOCATION PRIOR TO ON STAR SENDING HIM TO THE WRONG LOCATION. WHAT A MESS. HAVE A LOANER CAR BECAUSE I HAVE BEEN TOLD A FUEL PUMP IS ON NATIONAL BACKORDER. ALSO THAT THEY WILL BE REPLACING THE VALVE SPRINGS WHICH IS ANOTHER ISSUE I THINK? HOPING TO KNOW MORE THIS WEEK.

Mileage: 5,000

FULL ENJINE FAILURE AT 371 MILES CAUSING LOSS OF CONTROL.VEHICLE WAS DRIVEING ON CITY STREET ABOUT 30MPH WHEN FAILURE HAPPEN. JUST PRIOR TO THAT VEHICLE STALLED IN TRAFFIC AT A STOP WHEN WAITING FOR A RED LIGHT. SPRING BROKEN IN PISTON CAUSEING FAILURE. ALSO HAD PROBLEMS WITH INFO. SYSTEM BLANKING OUT AND NO RADIO THEN WHEN IT DID WORK NO VOLUME CONTROL ON THE RADIO. INFO. SYSTEM FIRST FAILED WHEN BACKING UP AND NO RADIO AT ALL. SECOND TIME WHEN MOVING FORWARD BUT I HAD RADIO BUT NO VOLUME CONTROL. 3RD TIME WHEN BACKING UP AND NO RADIO AT ALL. 4TH TIME WHEN DRIVING FORWARD AND NO RADIO VOLUME CONTROL, THEN A FEW MINUTES LATTER THE ENGINE FULLY FAILED. THIS VEHILCE WAS BOUGHT NEW AND ONLY HAD 371 MILES ON IT. THE ENGINE IS A 5.3 VOTEC GM ENGINE.

Mileage: 371