2021 Chevrolet Silverado Complaint Log

Vehicle started with vibration at speed 45mph and sometimes it gets worse already balance the wheels twice and same issue so I took it to another shop and they found that my vehicle has hesitation and shuddering also really hard down shift

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.

The tailgate randomly opens and closes during driving causing contents to fall out of the tailgate and creating a hazard for other motorists and damaging personal property. The tailgate now will not open and there is no manual override to open the tailgate. Certainly a design flaw and now not allowing access to the tailgate. I've contacted 5 local gm/chevrolet dealer service departments and they cannot offer any guidance on how to manually or power open the tailgate. I have a tonneau cover on the tailgate which makes it pretty much unable to access. I'm a firefighter and put my gear in the tailgate and need access asap. Please advise on how I can get GM/Chevy to assist with this issue. A police officer was behind me when the contents fell out of the tailgate on 6/9/25. This has happened several times since and most recently on 1/17/26. This needs addressed asap. Thanks!

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.

Transmission shuddering and vibration

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

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)

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.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the transmission shifted hard while depressing the accelerator pedal. There was no warning light illuminated. The vehicle was taken to the dealer and the TCM was reprogrammed; however, the failure worsened, and the vehicle hesitated while depressing the accelerator pedal. Upon investigation, the contact discovered NHTSA Campaign Number: 24V797000 (Power Train) and linked the failure to the recall. The vehicle was taken back to the dealer and the contact was informed that the vehicle was not under recall. The contact was referred to the NHTSA Hotline to report the failure. The vehicle was not repaired. The manufacturer was notified of the failure and a case was filed. The failure mileage was approximately 120,000.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that upon arriving at the destination and turning off the vehicle, several attempts were needed to release the key from the ignition. The contact also had to leave the key in the ignition on several occasions because the key could not be released or removed. The vehicle originally returned to normal functionality, but the key had since become permanently stuck in the ignition. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the ignition switch. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 69,000.

At approximately 67,000 miles I noticed upon starting and putting it in gear the motor would rev/clunk while going into gear. Shifting from one gear to another the truck would shutter. Did not feel safe driving any distance because the truck would lock up when trying to put it in gear. I had the truck looked at after reading numerous complaints about this 8 speed transmission and wanted to make sure it was safe to drive. After test driving it a couple of times during the course of a day it was determined the transmission needed to be replaced/rebuilt. At no time did any warnings appear on the display indicating there was an issue. I had the transmission rebuilt but feel like there are many complaints and no recalls regarding this same issue.

The contact owned a 2021 Chevrolet Silverado 1500. The contact stated that while coming to a stop, the contact heard a loud sound coming from the engine compartment. The check engine warning light was illuminated. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the repair was unavailable. The vehicle was taken to the dealer, where it was diagnosed and determined that the connecting rod and the crankshaft engine components had failed, and the engine needed to be replaced. The vehicle was not repaired, and the dealer confirmed that parts were not yet available. The manufacturer was not made aware of the failure. The failure mileage was approximately 70,000. Parts distribution disconnect.

As I am driving, the truck shutters off and on and its shifts hard when shifting gears. I drive long distances daily and if the transmission fails, this could cause an accident that could put the safety of my children’s lives, or mine, at risk. It has not yet been inspected, but I spoke with several transmission specialists and have been told this is a very common issue among 2021, and other year models close to that, Chevrolet Silverados. The cost for confirmation would be upwards of $1000, which is not something I am able to afford. There have not been any warning lights or lamps. Only shuttering and harsh shifting.

P146B (EVAP Purge Pump System Performance) engine code started occurring around 50,000 miles. This is similar to the recall for 2019-2020 Chevy Silverado, Cadillac XT4, and GMC Sierra 1500 covered by N202324990.

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.

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.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the transmission was shifting hard. The contact stated that the failure recurred while driving at 70 MPH. The vehicle was taken to the dealer where it was purchased for diagnostic testing, but the cause of the failure could not be determined. The contact used a scanner and retrieved DTC: B3205-4B-BCM, and a message that the steering column circuit was locked. Additionally, the scanner displayed a notification of NHTSA Campaign Number: 24V797000 (Power Train); which the contact related to the failure. The dealer informed the contact that the VIN was not included in the recall and referred the contact to a Chevrolet dealer for assistance. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that assistance could not be provided because the VIN was not included in the recall. The failure mileage was approximately 100,000.

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.

Vehicle has started shuddering everytime i drive, normal speeds, flat roads, hills, everything. Feels like my rear end disengages and re-engages while driving. Afraid it is going to lock up completely or im going to lose all power. Dont understand why my vehicle isnt included in the recall already out for this issue.

My 2021 Silverado has the same issue as the current recall, whereas the tailgate open by itself when the vehicle is operations. This happens when it rains. The first time I noticed it I lost a cooler out of the back of my truck on the interstate highway. The second time it came down when hauling a trailer and cause minor damage to the tailgate. I have since removed the fuse that controls the tailgate. I notified Chevrolet of the issue, but the stated that my truck is not under the current recall.

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

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

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.

Shuddering when driving. Erratic shifting and downshifting.

A knocking noise coming from the left side drivers wheel

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.

blown engine 6.2 L87 motor

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.

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted and confirmed that parts were not available for the recall repair. The manufacturer was made aware of the issue and confirmed that there was no expected date for parts availability. The contact had not experienced a failure.

My vehicle started shuttering approximately after 128,000 miles. I took it to a Edwards Chevrolet dealership near my home to have it serviced. I wa told that the transmission was going out and needed to be replaced.

I purchased this truck 3/20/2025. I have since realized it wasn't me doing something wrong. The truck hesitates and shakes during shifting upon acceleration from a stop and when putting it in park and attempting to turn the truck off it has a message on the display saying "shift to park" and it will not turn off until you repeatedly restart it and play woth the gear shift to get it to register that it's in park. I have made an appointment to take it to the dealership to be looked at. The truck has 75,000 miles on it.

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 70 MPH, the vehicle jerked and failed to accelerate as intended while depressing the accelerator pedal. The contact stated that the engine seized. The check engine warning light was illuminated before the failure. The contact was able to coast to the side of the road. The contact stated that the vehicle was towed to Midas, where it was diagnosed and determined that the fuel pump control unit had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The contact related the failure to NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); however, the VIN was not included. The failure mileage was approximately 57,000.

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.

Losing power while driving and acceleration and uneven idle sometimes

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!

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.

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.

Airbags did not deploy after a collision based accident

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 70 MPH, the vehicle made an abnormal knocking sound. The contact exited the freeway and continued driving 40 MPH; however, the vehicle stalled, and several unknown warning lights were illuminated. The vehicle failed to restart and was towed to the dealer, where it was diagnosed that piston #4 valve had seized, causing damage to the push rod. The dealer took the engine apart and replaced the push rod, the valve, and the head gasket. The contact stated that the failure occurred while driving 70MPH. The vehicle was towed to Team Hodges, INC. Chevrolet (2265 M-76, West Branch, MI 48661), where it was diagnosed that piston #8 valve had seized, causing damage to the camshaft. The dealer replaced the valve, the camshaft, and other unknown parts. The vehicle was repaired. The contact related to the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The manufacturer was notified of the failure and informed the contact that the VIN was not included in the recall. The failure mileage was approximately 10,000.

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

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.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the oil change message was displayed. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was unknown.

While driving about 75 miles an hour, when the gear was shifting back-and-forth between about seven and eight, there was a loud bang. It happened again with a bang that was not as loud. Something with the transmission. Only have 36k miles on it.

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 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.

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.

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 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)

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