general problems of the 2021 Chevrolet Silverado 1500 - part 1

On my 2021 Chevrolet Silverado 1500 custom, I began noticing an issue around 79,000 miles where the vehicle did not come to a complete stop as smoothly as expected. Initially, I suspected the brakes, as I purchased the truck new and had not performed any brake maintenance up to that point. I scheduled an appointment with the dealership to have all four brakes replaced; however, upon inspection, I was advised that the brakes were still in good condition, with approximately 90% life remaining. I then completed a test drive with the shop foreman, who was able to replicate the concern to some extent and suggested that the issue may be related to the transmission. At this time, the dealership is in the process of disassembling the transmission to determine whether the issue can be resolved with a repair or if a full replacement is necessary. It is concerning that such a significant issue would arise at approximately 80,000 miles. Based on similar reports I have reviewed, this appears to be a relatively common concern within the 80,000–90,000 mile range. Additionally, this poses a serious safety concern, as the vehicle’s hesitation in coming to a complete stop nearly resulted in a rear-end collision while en route to the dealership. There have been no dash lights on.

Rough shifting in low gears, can be dangerous in intersections due to low acceleration ability. The check engine light is on for replacement of transmission valve body assembly.

The transmission has been having issues for the past couple days. It is the 10 speed model and I have noticed everyday for the last couple days that there is an unusual shifting pattern between 25-60mph. This is sometimes accompanied with a shudder that feels like going over rumble strips without the sound. The feeling is not constant, but I will come to a complete stop and under light acceleration it will return. Under hard acceleration it is not noticeable. However, I am concerned with the unusual shifting. It can happen at a constant speed where it will do a random shift up or down or under light acceleration it will feel like it’s slipping for just a second. The vehicle has 99,900 miles on it and there are no warning signs or lights active. The vehicle is about to be serviced to do an inspection to find the underlying issue. This is a safety concern because the vehicle could potentially cause more damage to the transmission and with the random shifting, could potentially cause an accident.

The rear wheels suddenly locked up while driving. It did it twice then the check engine light came on and then the transmission would not shift into gear until I turned off the truck and turned it back on. This happened 3 days in a row all while driving. Exactly the same. No prior symptoms or warnings before the incidents happened. The vehicle is currently at the dealership being inspected. There is a recall (n242454440) that addresses this issue but I'm being told that my truck is not covered under that recall because my VIN is not part of it.

I was accelerating to 45mph on a main road. My truck was running just fine. At about 45 mph it felt like I hit a wall, and my truck started to rapidly decelerate and seemed to be downshifting very hard. A reduced engine power warning appeared in the message display, and the check engine light illuminated and began to flash. I luckly the car behind me was able to change lanes quickly and missed me and I was able to pull off the main road and turn off the truck. I let it sit for five minutes and restarted the truck. When I did, the truck seemed to drive at 25 mph, and I kept it at that speed and was able to get it to my work down the road. When I got to work, my company's mechanic ran the code. A p2732:00 transmission control solenoid valve 6 stuck off and p0700:00 transmission control module requested mil illumination codes came up. We also noticed my truck no longer went into reverse and the engine would just rev and nothing else happened. I had the truck towed to the chevy dealer who also got a p2732 error code. The truck as been at the dealer for the last two weeks and I have not told them to fix it yet.

The electronics freeze up and sometimes the stereo turns off and won't come back on. The transmission perks and then revs up then hits gear and kicks real hard. The transmission feels like it's going to vibrate out from under the truck going down the road at certain speeds!.

I'm reaching out to hopefully prevent a horrific situation not only to myself or any other gm owners. My vehicle has been diagnosed with having a faulty transmission valve body. There are so many that have failed that the dealer cannot give me a time when the part will be available. Because my vehicle is out of warranty, they are not willing to help. When I looked online it said as of late 2024 there were at least 1,888 field reports were identified.

On 03/13/26, I was taking a family trip when all of a sudden my 2021 chevy silverado (with 6. 2l v8) began to lose power and shake uncontrollably causing me to make an emergency roadside stop. Fortunately, traffic was light and I was able to avoid a collision. I immediately heard a loud knocking sound coming from my engine and several check engine safety lights were displayed. On 3/16, I brought my truck to a local gm dealership and was advised that I needed a complete new engine replacement due to catastrophic engine failure because my rods and crankshaft had blown in my engine. The dealership checked for recalls on my truck but were surprised that my VIN did not pull up a recall even though there was a recent major engine recall (# n252494000) issued for my exact model truck with the same issues my truck displayed. It should be noted that my vehicle had less than 24,000 miles on it and I have kept up with regular oil change and maintenance service and that before this issue I have had zero issues with this vehicle. To make matters worse my powertrain warranty expired 2 months prior to this incident so I am having to pay out of pocket over $12k for a new engine. On 03/19/26, I contacted chevy but was told there was nothing they could do for me and stated that NHTSA would have to get my vehicle added to the recall. I am requesting that my vehicle and others like it get added to this massive engine recall so I can get reimbursed for my new engine and also to protect other families from possibly being involved in a major unavoidable crash. Thanks in advance for your help!.

- what component or system failed or malfunctioned, and is it available for inspection upon request? high pressure fuel pump, lifter, and cam shaft failure. - how was your safety or the safety of others put at risk? potential crash w/ kids in truck, loss of power, surging, engine damage, etc. . (fuel pump) potential crash w/ kids in truck, engine seizure, severe engine damaged, metal fragments, loss of power, abrupt lock up, fire hazard, excessive noise, etc. . (lifter/cam shaft) - has the problem been reproduced or confirmed by a dealer or independent service center? yes confirmed by dealer hiley chevorlet, case # 90727922 w/ general motors. - has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? yes by service dealer hiley chevorlet, case # 90727922 w/ general motors. - were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no, no check engine light or messages. Bought the 21' silverado about 18 months ago, recently the truck began to sound and drive terrible, it was found to be a bad high pressure fuel pump, bad lifter, and damaged camshaft. Dealership acknowledged that these are common issues w/ this model & year of vehicle and the parts are defective parts that they use in the manufacturing process of this model. They deemed it was out of warranty range as it's still under year 5 however I exceeded the powertrain warranty by 10,000 miles so they will not cover the issues and damage.

Unknown. I have had issues with my vehicle since the purchase. Very subtle in the beginning, then it became more noticeable. There was a recall issue with a valve in the operation of the transmission, this issue is now affecting the shifting into different gears. The other day a vehicle ran a red light and my wife and I were in the intersection. I tried to accelerate to get out of the way, but here was a delay before the truck's transmission engaged. Luckily it did engage and the collision was avoided. This is a serious issue, an issue that shouldn't exist, an issue that the manufacturer knew about. I would like someone to investigate this and hopefully, help me with this issue. [xxx] [xxx] . Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My 2021 Chevrolet silverado, with approximately 84,000 miles, experienced a premature and catastrophic transmission failure while driving. The vehicle began to shudder severely and lost its ability to accelerate properly, creating an unsafe driving condition. I was able to get the vehicle to a dealership. The dealership diagnosed a complete torque converter failure requiring a full transmission replacement. Crucially, at no point before or during this failure did the vehicle's onboard diagnostic systems provide any check engine light or warning message. A sudden loss of power and transmission function on a highway is a major safety risk. I believe this is a widespread defect that needs to be investigated before it causes a serious accident.

A recall repair was performed on my vehicle at approximately 157,000 miles. Approximately 4,000–5,000 miles later, the transmission failed. The vehicle entered reduced power mode and became stuck in gear while driving. The dealership is recommending full transmission replacement but will not provide written explanation for why the failure is not related to the recall repair. I am concerned the recall remedy may have failed and that this condition poses a safety risk.

As I was driving my 2021 Chevrolet z71 pick up I had a warning light appear on the dash indicating the safety traction control system was faulty, at the same time my truck had a loss of power as if it was not operating on all cylinders. I could hear some strange noises that were not normal, at the same time my transmission was shifting abnormally. I managed to drive to a dealer and was told it was a collapsed lifter on cylinder #5 this occurred out of no where, I was informed what took place could have damaged the camshaft and I could be looking at a repair cost upwards of $5,000. 00 and the service writer indicated this has been an ongoing issue with the 5. 3 liter engine. My truck has been serviced at the dealership it was purchased from, and all oil changes have been performed within a reasonable window from when oil changes and service inspection has been recommended by general motors.

My vehicle has been at the dealership since February 4 due to a transmission failure involving the valve body, which is currently on national back order along with the converter. These parts are required to complete the repair, and the vehicle is not drivable. This issue occurred after previous major repairs, including engine lifter replacement and a cv axle repair. It has now been 71 days without a repair. The dealer has confirmed the failures, but the manufacturer has not provided a repair timeline or a definitive solution. I have not received consistent updates since March 19, and the vehicle remains out of service with no estimated completion date. .

On January 3, 2026, I started the truck, but it would not go into gear when I put into drive; I then attempted to put into reverse and same problem. I had to have it towed to the dealership, mccluskey Chevrolet, kings automall, cincinnati ohio, on Monday, January 5, 2026, this is where I purchased the vehicle on may 14, 2022, with 16,594 miles at time of purchase (estimated), it was towed on a flatbed, and arrived at mccluskey with 60,072 miles. Truck was looked and they found that it needed a valve body. At which time they told me gm warranty expired, over 60,000 miles, really by 72 miles. Ok there is a powertrain warranty then I had to prove oil changes, guess what I'm human and I missed two oil changes so the "extended warranty" mccluskey "gifted me" was void. I then complained I only drove the vehicle 43000 miles and for a 2021 with 60,072 miles this is an issue. Service advisor then went to management and they reduce the cost from est. 4000. 00 to 585. 00 plus tax through a program that gm offers. Picked up repaired vehicle on 1/30/2026, 2/1/2026 engine light came on went to have a veriscan and it found solenoid 3 stuck off & solenoid 4 (the one that was replaced) stuck on. This is an issue on gas 2021 Silverado 1500 and I wanted to report my experience because this is not "primarily" a diesel problem any longer.

2021 Chevrolet silverado z71 sherrod truck with the 6. 2 engine came apart (blew up) driving down the interstate at 65 mph. Had truck towed to dealership and was told needed a new motor. Truck has 89,000 miles on it. I was told truck does not meet recall because of the date it was manufactured but was acknowledged that what happened to it is what the recall is for.

Starting back in June 2025 loss of engine power multiple times. Many times almost hit from behind as I turned onto a highway. Found out vehicle had a stop sale recall at the time of purchase and I had issues with back right tire. Took truck to a tire shop and learned that the wheel was welded in many places and fracture was visible. Finally, got the dealership to pay attention in October to my concerns. They were going to allow me to trade the vehicle out for another one while paying off the bank but that’s not what they did. They attempted the repair and tried to hand it back to me. 1/27/26 was recently told this was corrected, and the sales person told me when he picked it up from shop he couldn’t go more than 30 mph. Dealership management told him not to tell me. I am submitting this complaint for immediate review regarding ruiz ranch motors (spring branch, TX) for an illegal vehicle sale, prolonged withholding of my vehicle, misrepresentation of a “loaner” vehicle, and coercive threats involving law enforcement. This matter involves ongoing safety risks, financial harm, and improper dealer conduct affecting both myself and my minor child. Summary of key facts (concise): • on June 25, 2025, I purchased a 2021 Chevrolet silverado (VIN 1gcuyhet7mz155657) from ruiz ranch motors, financed through ally financial. • the vehicle was subject to a gm stop-sale / no-sale safety recall (NHTSA 24v797000) at or around the time of sale. • I repeatedly raised safety concerns beginning shortly after purchase. These concerns were dismissed for months. • in November, ruiz ranch motors took possession of my 2021 silverado under the representation that they were “working on trade numbers” and a solution to correct the experience. Misrepresented “loaner / trade” vehicle: • I was provided a 2023 Chevrolet silverado, represented as a potential trade option, no trade was made (only dealership delay) this vehicle now has a engine light and no cooperation from dealership.

Good morning, while driving and starting my chevy Silverado 1500 with 3. 0 durmax it will suddenly go into a “limp mode” reducing speed and power. Recently while driving on a highway it reduced engine power causing the vehicle to slow down suddenly with many cars speeding by. This caused me to try and pull over the vehicle and avoid hitting other vehicles. When pulling codes off the vehicle there is a p1098 which refers to the engine coolant control valve. This will cause the vehicle to do the described power reduction. Upon researching the issue gm has recognized and released a special coverage to fix the issue. N252508341. However my vehicles VIN does not pull up the coverage. All the characteristics of the coverage seem to fit the model and issues I have. It’s the same year, model, engine, etc. I’ve attached a dot report of the special coverage. I’m hoping this will help fix my vehicle and others with this same issue. Although it’s not specifically listed as a safety recall, I feel the cause of the sudden power reduction is known by gm and warranty issued and the problem should be resolved for all vehicles with this issue. Thank you!.

On a very cold day in January I left work to head home in 4-high. Just before I got on the highway, the truck did a hard shift from 1st to 2nd and I felt kind of a clunk. Truck immediately threw a check engine light and went into limp mode (didn't seem to shift at all). Pulled into a parking lot and tried to go in reverse, but truck would not go into reverse. Truck was towed to local dealership where they diagnosed it with a failed valve body on the transmission. Dealership told me the valve body was on back order so I then towed the truck to a local transmission shop who changed out the valve body. Transmission had no issues before this. The morning this happened it was very cold (below zero) and I got a message in the truck that said, "heater performance mode active". Thought that was weird, but dealer did not seem to think it had anything to do with the failure.

Went to put the truck in gear and it will not move the chevy dealership saids it needs a new transmission and I see that the 21 silverado has multiple tranny issues I bought extended warranty and they are telling me it might not be covered.

The powertrain transmission system, specifically the torque converter, failed on my 2021 Chevrolet silverado at approximately 66,000 miles. The vehicle was taken to and inspected by a gm-authorized dealership, pellegrino Chevrolet, on January 7, at which time the dealership diagnosed a failed torque converter and formally recommended a full transmission replacement due to the risk that metal debris from the failed converter may have contaminated the transmission; the vehicle and affected components are available for inspection upon request. This failure presents a safety risk due to the potential for loss of power, unpredictable drivability, delayed or failed acceleration, or sudden transmission malfunction, and this vehicle is my family’s primary transportation and is used to transport three child car seats. The problem has been confirmed by the gm-authorized dealership and additionally reviewed by four independent mechanics, all of whom advised that replacing only the torque converter would be insufficient. The vehicle has been inspected by the dealership and documented under general motors case #87048318; it has not been inspected by police or insurance representatives at this time. Prior to diagnosis, the vehicle exhibited abnormal transmission behavior and drivability symptoms consistent with torque converter failure, which prompted inspection and worsened leading up to the dealer diagnosis.

Transmission shuddering, trembling and rough shifting.

Cel on. Lifter failure on cylinder 1.

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.

Component that failed: the valve train system failed due to collapsed lifters in the gm 5. 3l l84 engine. The lifter failure caused internal camshaft damage requiring major repair. The failed components were removed by the Chevrolet dealership and should be available through the repair facility if inspection is requested. Safety risk: the engine failure caused a sudden and severe loss of power while driving. The vehicle would not accelerate beyond approximately 45 mph on a 65 mph roadway while en route to the dealership, creating an unsafe speed differential. When attempting to accelerate to pass another vehicle on a two lane road, the engine backfired and immediately throttled back, making it unsafe to complete the pass. The check engine light illuminated at the exact moment the vehicle lost power during the passing attempt. This sudden propulsion loss during an active maneuver created a hazardous driving condition. Dealer confirmation: an authorized Chevrolet dealership diagnosed collapsed lifters which damaged the camshaft and confirmed this as a known failure pattern in gm l84 engines. Inspection by others: vehicle was inspected and repaired by the dealership. No accident occurred, so no police or insurance inspection was involved. Warnings or symptoms: no prior warning lights appeared before the passing event. The check engine light came on during the failure while accelerating. Additional context: this failure aligns with widely documented lifter collapse defects in gm 5. 3l l84 truck engines. The breakdown was not caused by maintenance or wear and tear but by premature internal component failure known across this engine platform.

The contact owns a 2021 Chevrolet Silverado 1500. The contact was aware that the VIN was included in NHTSA campaign number: 24v797000 (power train). The contact stated that while driving 75 mph, the vehicle failed to accelerate as intended while depressing the accelerator pedal, and the vehicle pulsated before stalling. The contact was able to coast to the side of the roadway. No warning lights were illuminated. The vehicle was towed to an unknown dealer, where it was diagnosed with transmission failure. The vehicle was not repaired. The vehicle was then towed to another dealer, where the transmission failure was confirmed. The contact stated that the dealer had not inspected the transmission and used a "peephole" to inspect the transmission. The vehicle remained at the dealer unrepaired. The manufacturer was not notified of the failure. The failure mileage was approximately 100,000.

1- tailgate keeps opening by itself. It has opened while driving down the highway and things fell out of back of my truck almost causing an accident. It has opened while sitting in my driveway after I have turned the truck off and gone inside. I have reported this to a dealer they said my VIN is not on the recall list. I would like my VIN added since it is obviously an issue with the silverado's. 2- I recently has to bring my truck to the dealer for the transfer case sounding like there were bolts in a blended and a pinging sound by the bell housing while in park. They stated it was the front axle and fixed it saying it was a power train thing. The noise is back and now out of warranty.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The contact stated that since the purchase of the vehicle, the transmission had failed three times. The transmission had been replaced three times in the past. The second time the transmission failed at approximately 40,000 miles. The contact related the most recent failure of the check engine warning light to the fuel pump driver control module. The manufacturer was not made aware of the failure. The failure mileage was approximately 169,800.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 20 mph, the vehicle lunged forward while the accelerator pedal was depressed after the brake pedal was depressed. While the contact’s husband was driving approximately 78 mph and attempting to accelerate, the transmission light drive(d) started flashing, and the transmission unexpectedly shifted to neutral(n). The driver was able to coast to the side of the road, depress the brake pedal, and wait for a while before continuing to drive. The vehicle was taken to the dealer to be diagnosed; however, there was no cause for the transmission failure found. The vehicle was repaired. The manufacturer was informed of the failure, and a case was opened. The manufacturer referred the contact to the NHTSA hotline to report the failure. The failure mileage was 63,000.

Not sure of exact date I believe it was right before thanksgiving. The truck started shuttering and vibrating. It feels like we are driving on a gravel road. The manual said to change transmission fluid between 45,000 and 60,000 so we took it to the dealer. That is what we did hoping that would fix the problem. But it did not so we took it back and they kept it for 3 weeks they said no codes came up and they said the tires needed balancing so we let them do that but the problem is still there. They say there is no recall on it . We did some research and found information stating chevy is having problems with the transmission. As of now we only have 45,608 miles on it. It is riding worse now.

I was stopped at a stop light and all of a sudden, the engine just revved amd revved and no drive only reverse, and it happened 4 times until tonight, 11/11/25 @ 8:38pm I am stuck at another red light and have to back my truck up to home depot and get a tow. Only a 5 year old truck with 71122 miles and always well maintained with papers and goes out on me. Not acceptable gm! you make things and used to be solid, like a rock trucks but now I feel robbed as a long time chevy fan/enthusiast but I may have to change manufacturers unfortunately.

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA campaign number: 24v797000 (power train), and the vehicle was taken to the dealer for the recall repair. The dealer informed the contact that the recall repair had been performed; however, the recall remained marked as incomplete. The dealer was contacted and confirmed that the recall service report had been sent to the manufacturer. The manufacturer was contacted and confirmed that the recall service report had been received; however, the manufacturer advised that the recall could not be marked as complete. The manufacturer did not provide further information. The contact expressed doubts that the recall repair was completed effectively. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.

I experienced a locking up or no power to the rear wheels. It was raining and the rear wheels would spin. I had no traction. I had to take a few turns and had to be careful or I would have fishtailed into other vehicles. When I stopped at a stop light/or sign then proceeded forward the rear wheels would spin in place. The tires wouldn't grab the pavement. This is the best way I could explain it.

My transmission started to make a rumbling sound intermittently while I was on the highway. It happened during normal highway speed and not dependent on acceleration or deceleration. I brought it to the dealership with 84,000 miles and they dropped the transmission pan. No metal found in the fluid. The issue was with the torque converter. I had my oil changed 1. 5 weeks prior with a 21 point inspection. I was curious if there was a TSB for this issue. I haven't been able to find a recall notice for this issue.

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.