2021 Chevrolet Silverado Complaint Log

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

Engine siezed while on a roadway that speed limit was 75 miles per hour. Was also actively pulling a trailer. Luckily avoided traffic in pulling off to the side of the road and was stuck there for about 8 hours on the side of the road. It broke down 5 hours from home.

Transmission isssues hard shifting and no shifting at times. I informed the dealership about the recall on this issue and they are saying it doesn’t fall under the recall which isn’t true because my vehicles is showing all of the symptoms under the recall #N242454440.

The transmission either shifts hard or momentarily locks up when downshifting and then shifting back up into high at 50+ mph. Check engine light comes on, tow haul mode is not available, engine rpm's increase dramatically. Transmission will begin shifting normally after a engine stop, but check engine light stays on, and tow haul mode is not available. Cycle continues. The hard shift before the check engine light comes on and transmission upper gears are locked out is very unnerving, especially with a travel trailer behind you at 65 mph. I no longer fell safe driving the vehicle. I am requesting assistance from the dealership on this truck with less than 49000 miles. The "flash for the transmission" recall was done several thousand miles ago. It only masks the situation. This is not acceptable, nor safe.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 35-40 MPH, the engine revved; however, the vehicle failed to respond as intended, with the transmission slipping. The message "Engine Power Reduced" was displayed. The contact was able to pull over to the side of the road. The contact was able to drive to the residence at slow speeds. The vehicle was taken to the dealer, where it was diagnosed that the automatic transmission valve needed to be replaced. The dealer replaced the transmission valve. Additionally, the dealer replaced the rear and front differentials and the transfer case. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 79,882. The VIN was not available.

Rain is coming in through the back window. Dealer is stating that the rain is coming from the sliding window but satellite is stating it’s the brake light on the top of the truck.

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

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at various speeds, there was an abnormal metal-on-metal grinding sound coming from the engine. The contact also stated that whenever the vehicle was started, the engine was making an abnormal knocking sound. There was no warning light illuminated. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The contact had received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The manufacturer was informed of the failure. The failure mileage was approximately 47,000.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 60 MPH, the vehicle jerked, and the contact noticed an unusual clicking sound coming from the vehicle. The accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The vehicle was driven to the residence. The vehicle was taken to the dealer, where it was diagnosed with camshaft failure. The contact was informed that the camshaft needed to be replaced. The vehicle was not repaired. The vehicle had been taken to the dealer twice within a month due to the failure. The manufacturer was made aware of the failure, and a case was filed. The contact had requested a buyback. The failure mileage was approximately 70,000.

Transmission is changing hard and jerking

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while stopped, there was an abnormal sound coming from the vehicle. The contact stated that the rear tailgate had opened independently. There were no warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 56,000.

Transmission would not select gear then without warning would engage. Loud thuds when changing gears. 10spd automatic.

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

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that upon starting the vehicle, there was an abnormal tapping sound coming from the engine, with the check engine warning light displayed on the instrument panel. The contact stated that while driving at various speeds, the vehicle jerked and hesitated while depressing the accelerator pedal. The vehicle was taken to an independent mechanic and a dealer, where diagnostic tests were performed. The contact was informed that the engine lifters were defective; therefore, the engine needed to be replaced. Recently, the contact stated that while at a stoplight, the vehicle shut off and failed to restart. Due to the failure, the contact had the vehicle towed to the residence. The vehicle was not repaired. A mechanic later informed the contact about NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, upon investigation, the contact discovered that the VIN was not included in the recall. The manufacturer was then notified of the failure and confirmed that the vehicle was not included in the recall. The contact was then referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 97,000.

while driving, the emergency brake engages and locks the car up coming to a complete stop mid driving (on highway!). this has happened 3 times now, took it into dealer, they did a computer update and released. It has since happened again, with my child in the car!

I have a 2021 Silverado LT trailboss. Catastrophic engine failure. Camshaft bearing and lifter failure. First lifter replacement @ 16,000 miles. Second at 104,000 miles. Was told by GM the 6.2L L87 I have is not affected due to a Canadian VIN. The sticker on the truck says Assembled in Kentucky. Gm charged $18,000 for a refurbished motor. The “new” motor had lifter failure at 12,000 miles. Canada is now included in the recall but I was again told by GM that my engine is not affected due to being built in September 2020. I believe this engine bearing failure goes back further than they like to admit.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated upon shifting into reverse(R), the vehicle shut off. The contact stated upon shifting to park(P) to restart the vehicle, the vehicle was able to restart after pressing the Push to Start button several times, and the vehicle made abnormally loud cranking, banging, and rattling sounds. The contact stated that he was an independent mechanic and had determined that the engine was blown, despite the outstanding maintenance record on the vehicle. The vehicle was towed to the dealer, where it was diagnosed that the engine had failed due to lifters failure. The dealer determined that the engine needed to be rebuilt or replaced. The dealer informed the contact that the engine might be replaced because the parts needed for the rebuilding of the engine were on backorder. The dealer informed the contact that the engine oil would be tested. The dealer also informed the contact that a claim was filed with the manufacturer for the repair to be covered under warranty, and the dealer was awaiting a response from the manufacturer. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 27,820.

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

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

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

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 50 MPH, the engine started rumbling with the check engine, stability-trac, and the parking brake warning lights illuminated. The vehicle was taken to an independent mechanic who diagnosed a misfire in cylinder #1. The mechanic referred the contact to the dealer for assistance. The vehicle was taken to the dealer, who diagnosed that the lift valve had collapsed, and the right side of the block lifters needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the dealer for assistance. The failure mileage was 80,000.

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

When it rains. Tailgate opens on it own. Either have to lock truck or quickly put into drive to prevent tailgate from opening on its own. Only in wet weather. Tailgate opened on its own in rainy weather when parked at hardware store. I began to drive away not knowing tailgate opened and lost tool box and material out the back while making a turn. Speaking with GM I was explained it’s a known issue on 2500 models but not for 1500 models.

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

I had my windshield replaced and the installer said when he removed the old glass, the bottom of the glass didn't have the rubber strip accross the bottom. Our rear sliding window has had a small leak, so we asked him to check it out too. He noticed that the window also does not have the rubber weather seal.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the engine was misfiring. The vehicle was taken to an independent mechanic, where the contact was informed that the cylinders were misfiring, and the mechanic recommended that the spark plugs be replaced. The contact replaced the spark plugs with the assistance of a retired mechanic; however, the failure persisted. The vehicle was taken back to an independent mechanic and was diagnosed with a cylinder misfire. The mechanic recommended removing the dynamic fuel system management by replacing the camshaft, lifters, and other unknown parts. The dealer was notified of the failure and advised the contact to schedule an appointment for a diagnostic test. The vehicle was not repaired. The contact related the failure to GM Campaign Number: N212353840. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 65,000.

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

Upper control arm ball joint separated from the control arm causing steering loss.

The transmission on my truck failed. My truck now requires a new transmission. A repair costing over $7000. The transmission gave out while pulling into a street with my wife and child in the car. The truck would struggle to go into gear and lurch violently. The dealer was able to replicate these problems.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 70 MPH, there was an abnormal clunking sound coming from the engine compartment, and the contact discontinued driving the vehicle. No warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the push rod in cylinder 5. The vehicle was repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); but the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was 64,000.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 60 MPH, the vehicle briefly lost motive power before slamming into gear. There were no warning lights illuminated. The contact stated that on a separate occasion, while driving at an undisclosed speed, an abnormal sound was coming from the transmission. The vehicle was taken to a local dealer; however, no cause for the failure was found. After test-driving the vehicle, the dealer diagnosed that the fuel injectors had failed, and there was a misfire in cylinder #6 had, and the check engine warning light was illuminated. The fuel injectors were replaced. The dealer test drove the vehicle and the failure persisted. The dealer diagnosed the vehicle and stated that the lifter rocker arm had seized. The vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 64,000.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that upon shifting to park(P) and attempting to turn off the vehicle, the message "Shift to Park" was displayed, and the vehicle failed to turn off unintendedly. The contact stated that upon jiggling the gear shifter, the vehicle responded as intended. The contact stated that the failure recurred intermittently. The contact stated that the failure recurred upon arriving at the residence at 1:00 AM. The vehicle was able to turn off after being reset by temporarily disconnecting the battery. The dealer was contacted, and an appointment was scheduled for a diagnostic test. The vehicle was not yet diagnosed or repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under a related lawsuit settlement. The failure mileage was approximately 53,000.

When I am driving my vehicle and I pull in to park, I put the gear shift into park and shut the vehichle off and a light comes on in the dash and says shift to park. And the vehichle will not shut down for several minutes after this light comes on. It also feels like there is a hesitation in the transmission at times after I start the vehicle and start driving.

The tumbler in keyed switch is locked up solid . Cannot turn key to start or turn on.

I get A shift to park message on my dash behind steering wheel whenever I put the vehicle in park and turn it off. It want let the vehicle completely shutdown.

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

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while leaving a parking spot and driving approximately 5-10 MPH, there was an abnormal knocking sound coming from the engine before the vehicle lost motive power. There were no warning lights illuminated. The vehicle was towed to the local dealer and was diagnosed with engine failure. The vehicle was repaired. The contact stated that the vehicle had experienced catastrophic engine failure two years prior to the recent failure. The manufacturer was contacted and informed the contact that the VIN was not under recall. The failure mileage was 20,000.

The tailgate is opening automatically without anyone near the vehicle or keys. It has only started recently and I see similar vehicle models are being recalled for the same issue. My concern is that this could happen while driving down the road, posing a risk to other drivers if there are items in the bed of the vehicle. Prior to the tailgate opening unexpectedly, the button to push on the tailgate that opens it quit working. It will only open with the keys or button in the cab, or now at random times.

I own a 2021 Silverado Trail Boss LT with the 6.2L V8. I purchased the vehicle new at Classic Chevrolet in [XXX]. In XXX, it experienced what I can only describe as engine failure. Severe knocking, loss of power, rough idling. I contacted the dealership as it was under warranty (it had approximately 45k miles at the time). They towed the vehicle in and performed repairs. I do not have service records but the repairs totaled approximately 12-15k dollars and involved several engine part replacements. I received the vehicle back after about 2 weeks. I later learned of the factory recall that was issued by GM affecting my truck and took it in for inspection. This XXX5. It was inspected and passed. They did replace the oil to a higher weight oil as recommended. In XXX it experienced the same issues as before. This time while driving on freeway. Sever engine knocking and loss of power. As I was on the way to work, I drove straight to the dealership to drop it off. After inspecting, they determined it warranted a replacement engine under the original recall. They kept the vehicle about 3 weeks and returned back to me in early XXX. It has been driving fine since then, but I am worried the replacement engine may have the same defects as the original engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The car while I’m driving, when I start driving it has a kick could be transmission

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

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the rear tailgate opened unexpectedly and without warning. The dealer and the manufacturer were made aware of the failure, and informed the contact that the vehicle was not included in NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages). The vehicle was not repaired. The failure mileage was approximately 48,000.

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

I bought this Truck in December 2023 from Honda of Ocala as a used vehicle it had 59,000 miles when I bought it. In October 24 it started smoking from the exhaust one morning as I was leaving work. I have always changed the oil on time and taken good care of the truck. I found out the lifters had failed and Honda of Ocala replaced all of my lifters on both sides around $4,000 in repairs the truck was at 73,000 miles at this time. A few months after getting it fixed the truck started smoking again and going into limp mode at 81,000 miles. I still owe $30,000 on this truck but can’t afford to keep fixing it and can’t afford to trade it in and go negative on it.

Paint chipping and cracking not even five years old yet

51,000 miles and Power steering warning light came on, attempted to turn and the wheel and was a struggle to make a turn. I almost ran off roadway and struck a tree. I struggled to get the truck home, where it sat for a minute and reset itself and worked properly for now. Upon reviewing the electric steering in this year, make and model was very common within 15k miles to 65k miles. Upon internet search, revealed this problem had a recall. Wanted to make sure before a manage to transport the truck for service at dealership and pay for high labor charges.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the vehicle failed to restart. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the fuel pump. The vehicle was repaired, but the failure reoccurred. The vehicle was taken to an independent mechanic, who diagnosed a failure with the ECM wiring harness. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 13,000.

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

Since the purchase of this truck I have been having the same issues consistent with the current recall. It has gotten worse and has almost caused an accident during acceleration due to skipping or locking up of the engine/wheels. Worse when traction control is on. This Happens almost every time the gears shift during acceleration.

While coming to a stop at the end of the exit ramp my vehicle bucked when trying to go from a stop into 1st gear. Eventually the truck continued in a forward motion. Then came to a stop light and once again from a stopped position by truck bucked and eventually went into gear and continued forward motion. Parked the car where it sat for 1.5 hours then went to drive the vehicle and it bucked again into 1st gear. Drove to a parking lot were we parked to get lunch. Came out started the vehicle backed out of the parking spot and drove forward to the exit of the parking lot. When trying to exit the vehicle failed to move forward. The car acted as if it was in neutral and only revving to high RPM's. Removing the fuse for the Transmission Control Ignition allowed the vehicle to move forward but only in gears 1,2,3. I brought the vehicle to GMC dealership and they recommended a fluid service to determine if metal chips are in the fluid. That service was performed and issue remained. The Dealer has recommended a complete transmission replacement. My vehicle never displayed a warning lamp or shown symptoms prior to this failure. My vehicle has a 8 speed transmission which is known to be a failing part with Chevrolet and GMC. A new transmission is costing me $7900 plus tax on a 2021 with low wear and highway use.