general problems of the 2021 Chevrolet Silverado 1500 - part 2

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.

Engine failure , early on it had the dod replace. Under warranty and I’m not 100% sure but this time it failed and took out the engine. New rotating system and valves replaced happened at just under 100k miles with all I’m seeing about these engines I figured I’d report it.

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.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 55-65 mph, the vehicle shuddered while the rpm was fluctuating. There was no warning light illuminated. The dealer was notified of the failure and informed the contact that the VIN was not included in gm campaign number: n212328090 (8 speed reaction carrier failure). The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 109,000.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the transmission temperature message was displayed. The vehicle was taken to an independent mechanic, but the vehicle was not diagnosed or repaired. The vehicle was later towed to the dealer, where it was diagnosed with possible transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. Upon further inspection, the contact discovered that the transmission thermal valve had failed and needed to be replaced. The vehicle was repaired by the contact. The manufacturer was made aware of the failure, and a case was opened. The approximate failure mileage was 101,000.

1st gear to 2nd gear are slipping.

Loud ticking noise and power loss. Transmission shift slips from 2ed to 3rd . Recall to factory for check up. Said no problem? changed oil. They say it was good. It is not.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the vehicle shuddered and hesitated while shifting into gear. No warning light was illuminated. The vehicle was taken to a local dealer, where the transmission was flushed due to a possible torque converter failure; however, the failure progressed. The vehicle was taken back to the same local dealer, where it remained for further investigation; however, no cause for the failure was found. The manufacturer was not made aware of the failure. The failure mileage was approximately 62,265.

Truck shudders when you try to maintain speed. The service engine light is on all the time. Rpms bounce up and down constantly. GMC dealership said it needs a new torque converter. It was $100 just to diagnose it!.

No reverse in transmission and sporadic engagement and shifting in forward gears.

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.

The transmission is making a clanking noise during the lower gears. The local dealer said the transmissions is "done for". The truck has around 125,000 miles on it. The truck is available for inspection. When checking for recalls, I saw the GMC were being recalled for the same issue.

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*.

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

The truck started to vibrate badly. Brought it to the dealership and have to replace the 6. 2 l engine. I was happy to make it home without it breaking down. The truck only has 67,000 miles on it.