general problems of the 2021 Chevrolet Silverado 1500 - part 1

When taking off it will sometime have hard shifts, shuddering, and acceleration hesitation. While driving, it will do static jolts. Dealer couldn’t pin point problem and advised for a new transmission or we could drive it until it dies. Dealer didn’t recommend to change transmission oil in fear of creating more damage.

The contact's father owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 70 mph, the check engine warning light illuminated. The vehicle started losing automotive power. The contact pulled over and turned off and restarted the vehicle, but the check engine warning light remained illuminated, and while the vehicle was shifted to drive(d), the vehicle failed to accelerate above 40 mph. The contact stated that the vehicle was taken to a dealer who diagnosed the vehicle and determined that the lifters and cam shaft had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 63,000.

Engine temperature fluctuates. Check engine light comes on, prompt on dash will say engine is overheating. Engine fan stays on high. Code on scanner states coolant control valve. Gm has issued special coverage on this exact issue. However, they tell me my truck is not covered. I am very upset with gm as they are failing to address a known concern with my vehicle.

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA campaign number: 25v274000 (engine and engine cooling), and the vehicle was taken to the dealer, where the contact was informed that the vehicle had passed the recall inspection, and no repair was needed. The contact stated that while driving at 50 mph, five months later, the engine seized in the middle of the roadway. The contact was unable to pull over to the side of the road. The vehicle was shifted to neutral(n) and pushed over to the side of the road with assistance. The vehicle was impounded by the local police department. The vehicle was then towed to an independent mechanic, where it was diagnosed, and it was determined that the engine had seized. The vehicle was not repaired. The contact stated that the recall remedy had failed to correct the issue. The contact related the failure to NHTSA action number: rq26001 (engine). The dealer and the manufacturer were not contacted. The failure mileage was approximately 125,700.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at various speeds, the vehicle started shaking abnormally. The service electronic stability control (esc) warning light, parking brake warning light, a wrench warning symbol, and the check engine warning light were illuminated. The vehicle was not taken to the dealer to be diagnosed or repaired. The manufacturer was informed of the failure and confirmed that there was no recall associated with the VIN. The contact was referred to the NHTSA hotline to report the failure. The failure mileage was approximately 125,000.

The coolant control valve failed and the repair resulted in an engine oil leak which persisted for 8 weeks and still has not been repaired. The service manager at the dealership and general motors company are trying to figure out how to fix it but are not able to yet. They may have to replace the engine is one thing the service manager said to us this week.

Random catastrophic engine failure randomly made a clunk noise and oil pressure dropped to 0. Engine needs replaced.

- 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.

I brought my vehicle to the dealership on March 7, 2026, to address the outstanding safety recall. However, I was informed that the recall repair cannot be completed until I first pay $1,100 to replace the idler pulley. Unfortunately, an unexpected $1,100 expense is not currently in my budget. It is quite concerning to continue driving a vehicle with a known risk of losing propulsion, as the increased risk of a crash is a significant safety worry for me. I would appreciate any assistance or alternative solutions you can provide to ensure this safety recall is resolved. Please find the message from the dealership: additional diagnostic recommendations: we are going to want to get the idler pulley replaced 1st as it can cause unwanted noise and vibration during the testing with the pico scope. After the repair take the vehicle on a good test drive get it good and warm then retest the engine with the pico scope and proceed with those test results. We still want to make sure it is tested correctly if the engine passes just note under special coverage n252494003 this special coverage covers if an engine failure occurs in the vehicle as a result of the condition described above for a period of 10 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. ".

2021 silverado ltz l87 6. 2l v8 engine. 49753 mi. February 27th 2026 total loss of power when parking. A few weeks later hearing knocking noises coming from driver side engine area. This is my daily driver and need this issued fixed.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at 35 mph, there was a metallic sound as if a bolt had fallen inside the engine compartment and was rotating and spinning. The vehicle was taken to the dealer, where it was diagnosed, and determined that the camshaft and the engine lifters had failed and needed to be replaced. The vehicle was not yet repaired. The contact related the failure to NHTSA campaign number: 25v274000 (engine and engine cooling) and NHTSA action numbers: ea25007 (engine, engine and engine cooling) and rq26001 (engine). The manufacturer was notified of the failure and referred the contact to the NHTSA hotline for assistance because the VIN was not included in the recall. The failure mileage was approximately 116,000.

I am writing because I have a truck with the 6. 2l l87 engine and it has been burning oil at every start up and acceleration from stop signs or stop lights, it blows out a blue cloud of smoke. I have asked jeff belzers in lakeville , mn to look and they did not as my VIN did not show up in the recall. I took it to maur Chevrolet in inver grove heights, mn and they told me that my miles were too high and they did not do an oil consumption test. I am burning 2 1/2-3 quarts of oil every 3,000 miles. I called the gm customer service line and they said there is nothing they can do except note it, so if I do get it repaired and pay for it, I could possibly get reimbursed in the future. If there is a known issue with this engine and there being 3 different engine builders, than why is it that my engine doesn't fall under that recall. It has all the symptoms of the engine failure that is specified in the recall? and it started about 6 months ago. Thank you sincerely, [xxx] p. S. I have 136,000 miles and the special coverage warranty runs out at 10 years or 150,000 miles. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

On February 12th, the check engine light came on in my 2021 chevy Silverado 1500 with the l87 6. 2 l engine. The following morning, I took it to the shop and had it checked. It was diagnosed with crank shaft bearing coming apart. I contacted the dealership and they told me that my VIN was not associated with the l87 recall, but that they would see if gm would be willing to help with the costst associated with replacing the engine. They agreed to pay for about 30% of the repair. I pointed out to them that my engine was manufactured in the tonowanda, NY plant which is the site where many of the recalled engines were manufactured. They still refuse to cover the cost of the new engine. I feel that they should cover my costs since the engine was manufactured in the plant and broke down for the exact reason for the recall. My costs are over $10,000 due to their defective engine. Please add my VIN to the recall.

The contact owns a 2021 Chevrolet Silverado 1500. While driving approximately 30 mph, the contact heard an object being dragged underneath the vehicle. There were no warning lights illuminated. The contact pulled over and heard an abnormal clicking sound coming from the vehicle before the vehicle stalled. The contact was unable to restart the vehicle, and the vehicle was towed to an independent mechanic. The mechanic diagnosed the vehicle and determined that the engine had seized and 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 referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 100,000.

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. .

I just bought this truck off a used car lot certified dealer and I noticed the engine light on then the truck would hesitate to start and I know the battery is dying so I looked it up and I got a recall on 2021 chevy silverado just like mine just wondering why mine is not under recall or why won’t mine get fixed but everybody else is the same year in the same problems can get fixed. I think mine should be fixed.

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA campaign number: 25v274000 (engine and engine cooling). The local dealer was contacted but was unable to schedule an appointment because the service center was fully booked. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The contact had not experienced a failure.

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!.

Lights appeared on dash, brought to the dealership. Dealership states engine damage due to valve train and a remanufactured engine was installed. This was approved by us for a $2000 charge. This charge included new manifolds, water pump, fuel pump and all associated gaskets.

6. 2l l87 v8 engine experienced catastrophic engine failure do to lifter failure and a cylinder 8 misfire. Causing additional damage to camshaft. The dealership has inspected the vehicle and refuses to acknowledge the problem as there own. I have invoices for the work if I choose to proceed. Incident occurred while driving on the freeway, complete lose of power and control. This engine is known for this exact problem yet I never received a recall.

Check engine turned on and at the same time the vehicle turned into safety mode abruptly, it slowed down to 10 miles an hour while on the high way and receiving a message stating that the "engine power reduced", the issue was presented to the dealership and they believe to be fixed with a sensor issue, the light came back on a few days after the initial repair and once again the engine lost power while driving the vehicle, the vehicle was then taken back to the dealership for repair once again, both times I mentioned the service bulletin, which they did not consider in their repair, stating that the issue was specific for a code (which all codes present are in the service bulletin) the 2nd repair was done on a actuator, which they stated should fix the issue, and did not, a 3rd time the vehicle lost power while hauling a trailer, this time I brought up the concern of them not reviewing the service bulletin, this time they confirmed that the service bulletin was the issue causing the check engine light (gm service bulletin 21-na-149) now they are looking to slowly start repairing the issue and wait for the check engine light to turn on again to then go back and forth and review step by step the instructions in the bulletin.

Most mornings after starting truck and driving off, it appears to be a hesitation or brief loss of power. Issue has been present for several years. It's hard to determine if it's engine or transmission issue. Truck is available for inspection. It usually occurs when leaving house in the morning so there is no safety issue because it happens within the first minute of driving. No warnings, cannot recreate issue.

On January 2, 2026, I brought my vehicle in for service to replace the upper and lower ball joints, as well as the control arms. I retrieved the vehicle from the repair shop on [xxx] and departed the same day for travel to mississippi. Later that evening, while traveling southbound on [xxx] near columbia, tennessee, I stopped at [xxx]. Upon re-entering the highway and accelerating to merge into traffic, the vehicle began shifting through gears abnormally. While in approximately 6th gear at around 2,900 rpm, a loud banging noise occurred, followed immediately by a significant loss of engine power. At the same time, the check engine light illuminated. Due to the sudden and unexpected loss of power while actively merging into highway traffic, I was nearly rear-ended by another vehicle. I was forced to take immediate evasive action and pull onto the shoulder to avoid a collision. This incident created a highly dangerous situation not only for myself but for surrounding motorists. This lifter failure occurred without warning and directly impacted my ability to safely operate the vehicle in a high-speed traffic environment. I believe this presents a significant safety concern that warrants investigation. There have been over 600,000 recalls for this and Chevrolet's solution was an entire engine replacement. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Complete engine failure and it just outside the recall. This is unacceptable and needs fixed.

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 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.

I have a 2021 chevy silverado 6. 2 engine. The recall that has been sent out for most of those engines I have experience the same damage to my truck engine. Connecting rod/ crankshaft engine failure. But my VIN is not in the system for the recall. Can someone have a engineer look into more of these engines especially my engine VIN. I was driving and all of sudden my dash lite up saying I have reduce steering. Took it to the shop and I was told that my engine needs major repairs. I have a really nice truck and it can be a show truck and for the engine to just go out because of bad manufacturer parts is not right I also had my kids with me. Please help.

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.

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.

I am the owner of a January 2021 6. 2 liter chevy Silverado 1500. I have had multiple issues with this vehicle. Oil pressure control solenoid, many no starts, failure to starts, engine lights, oil lights. Truck started to use an excessive amount of oil before scheduled oil changes. The engine sometimes hesitate and fails to accelerate. The engine became noisy. My mechanic started that the engine is noisy and the oil pressure is at 15 lbs. They said it will need a replacement engine that is not covered under my expired power train warranty. The mechanic stated it's not a matter of if it will go, is a matter of when we are a family of 5 and this is our family vehicle. We feel very uncomfortable driving this vehicle with our family knowing the engine is going to fail at any time while driving. This is a heartbreaking expense that I don't believe that we should have to pay for. We have always maintained our vehicle and have never abused it.

Warning lights came on at approximately 46000 miles. Brought to dealer for faulty lifters. One week later they decided that the lifters had damaged the cam and now the dealer wants to replace the motor. . Unfortunately for us the dealer has no car that we can use, so we had to rent a vehicle. Hopefully it will be ready in 2 weeks. That will make it four weeks with out a vehicle.

See attached document for complaint.