2021 Chevrolet Silverado Complaint Log

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The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 20 MPH, the vehicle started to stall and jerk. The check engine warning light illuminated, followed by the vehicle losing motive power and stalled. The contact was not able to restart the vehicle. The vehicle was towed to the dealer and the engine wiring harness chafing were zip tied, but the failure reoccurred. The vehicle was taken to the dealer and the connector to the ECM was replaced but the failure reoccurred again. The vehicle was not diagnosed. The manufacturer was contact, but no assistance was provided. The failure mileage was 6,000.

A squirrel chewed into the fuel line [Hose - GM (84871298), see: https://www.gmpartsdirect.com/oem-parts/gm-hose-84871298). This caused a fuel leak that could be directly observed only while the vehicle was running. On one occasion, however, a small pool of fuel appeared under the vehicle immediately after shut off. This part failure poses a fire and explosion risk. In addition, the wasted gasoline pollutes the atmosphere. The line was replaced at Lynn Layton Chevrolet of Decatur Alabama (invoice 608119). The part was inspected by Lynn Layton Chevrolet as part of that service ticket in order to determine the cause of the leak. To my knowledge, further inspection has not occurred. No warning lamps indicated the failure. The problem was detected by observing the trail of fuel when parking.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that during cold starts, the transmission was slipping, jerking, and banging. The failure eventually worsened and began to occur after the vehicle was driven and was warmed up. Additionally, while decelerating, the vehicle erroneously lurched forward. The vehicle was taken to the local dealer who diagnosed that the transmission valve body was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 6,000.

While driving down the road the engine began to run erratically and several seemingly random errors appeared relating to the parking brake, windshield washer fluid, and engine. The vehicle began shaking violently until stalling out on the road. After bringing the truck to the dealer and waiting for weeks to have it returned I was notified that there had been a lifter failure. Vehicle mileage had been at 12,600 miles at this point.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at 70 MPH, the vehicle was losing motive power with the “Engine Power Reduced” message displayed. The temperature gauge indicated that the engine was overheating. The contact initially had the vehicle towed to the dealer and diagnosed with a defective fuel pump. The dealer replaced the fuel pump, the fuel pump system, and the fuel pump sensor; however, each repair failed to fix the failure. The contact towed the vehicle to AutoNation Chevrolet Pembroke Pines (8600 Pines Blvd, Pembroke Pines, FL 33024) where the vehicle was diagnosed with a defective catalytic converter; however, the part remained on back order. The manufacturer was notified of the failure and a claim was filed. The vehicle remained in the possession of the dealer unrepaired. The failure mileage was approximately 15,000.

GM USES/USED SUBSTANDARD ENGINE COMPONENTS i.e. LIFTERS. GM KNOWS THSES ARE PRONE TO FAIL, YET ONLY REPAIRS THE VEHICLES THAT ARE AT AN AUTHORIZED DEALER PRIOR TO SALE. ALL THE VEHICLES THAT WERE ALREADY SOLD WILL NOT BE REAPIRED UNLESS ITS BROUGHT IN FOR SEVICE, GM WILL NOT NOTIFY CUSTOMERS OF THIS ISSUE. ALSO GM FAILS TO STOCK THESE PARTS EVEN THOUGH BY THERE OWN SERVICE BULLETINS SUBSTANDARD PARTS WERE USED TO BUILD THESE VEHICLES. GM WILL NOT SUPPLY LOANER VEHICLES TO PATRONS WHO DO HAVE THIS SERVICE DONE NOR WILL THEY TELL CUSTOMERS THAT THE PATRON COULD RENT A VEHICLE AND GET REIMBURSED FOR SAID RENTAL.

Concern: Various check engine lights occurred and vehicle making noise from the motor. Park collision assistance codes, emergency brake engaged code, when it was not on and could not move vehicle. Safety concerns about vehicle completely quitting or braking causing an accident, along with engine issue with only 5,161 miles on the motor of a 2021 Chevrolet Silverado. Cause: Scanned data indicated p0300 stored miss fire #4 cylinder on right side of engine, lifter noisy, push rod #4 intake bent. Correction: Removed intake, exhaust manifold, value cover, cylinder head, right side replaced all lifters, one push rod, related gaskets, reassembled engine.

Lifter failure at 8629 miles. All warning lights went on at time of incident, truck would barely drive home and I had it towed into the dealership where they replaced the entire bank of lifters. This is on my repair order- "Checked and found dead mis on cylinder 4 and ticking noise from engine//performed compression test and found no compression on cylinder 4//removed passenger side cylinder head and found lifter bad causing push rod to bend//replaced all lifters on right bank and 1 pushrod//changed oil and filter//filled coolant and test drove and found all ok. I called Chevy at time of incident (1/21/22) and opened case# 9-7252876703 stating I wanted both banks of lifters replaced because I pull a 30' camper with my family and didn't want the other side to fail while I'm pulling 7000+ pounds. They declined to replace the other bank stating that since the vehicle had more than 5000 miles it did not qualify for both sides to be replaced and it was for only vehicles after 11/21 and mine was built 2/21. I still would like to get the other bank of lifters replaced under warranty.

At 4K miles, the lifters of the engine went bad. It was determined a rod was bent and had to be replaced. At 26K miles, another cylinder went bad and had to be replaced. At 40Kmiles, serpentine belt had to be replaced. At 41K miles, another cylinder went bad and had to be replaced. Now, at 55K miles, I am getting the same issues with loss of power, engines stuttering and misfiring and will be taking the truck to the dealer on 1/28/25.

I have a 2021 Silverado 6.2 being repaired for failed lifters. I see this is a common trend and can cause hazards when pulling over for a faulty motor. 10 speed Transmission downshifts from 2 to 1 harsh with rpms jumping up causing for me to apply more brake pressure to stop. I have had a few incidents when I get close to the vehicle in front coming to a stop. I have taken vehicle to dealer for issue and they couldn’t replicate issues. Check engine light has popped up once or twice but never stayed on long enough to throw a code.

Valve lifter failure resulting in bent rod engine failure.

The ESC, parking light, traction control, and engine light came on while driving home. The engine started to shake. There was an issue with braking and steering the vehicle that made it difficult to control. A message on the dash said Service ESC. A report was sent via OnStar Notifications that said An issue with the emissions system is detected. After trying to restart the vehicle a few times, the lights will not go away. The truck is driving rough.

Engine valve lifter failure at 20,000 miles; engine hesitation and power loss. Error to parking brake and to electronic stability control. Chevrolet to replace damaged lifter but refused to replace both banks of defective lifters. As a result of dysfunction I was stranded 1200 miles from home and have been waiting 2 weeks for repair. Still 1200 miles from home with 2 kayaks, 2 bikes etc.

Engine lifter failure, excessive engine noise, loss of power and responsiveness, strange sounds from engine and runs very rough especially during acceleration. Multiple warning lights associated with the valve failure. Cruise control no longer works.

While driving the vehicle on a snow covered road the check engine light, abs light, esc light and parking brake light all came on. The vehicle also lost braking power. Took to the dealer. They told me it was a brake control module. If you do some research this is a on going thing since 2018. But they still continue to put this part in the trucks. On top of all of that they don't have a replacement part for the truck. Now the truck is going to sit at the dealer for one to two months. I am now paying on a truck that I can't drive to work and no loaners available. my question is why are they aloud to still put these parts in a truck. How do I know if they fix it if the problem wont happen again. If it does happen i hope my family and any one else is not in the way of my truck that I am unable to stop.

There is a massive shudder that sounds like the whole dash could come loose. feels and sounds like rumble strips and off road driving mixed all together. It happens at all speeds and when rpms are steady around 1200-1400.

Every so ofter I get an audible and visual alert telling me to Service Seat Safety Restraint System as well as the airbag light on the dashboard. This lastest incident is probably the 8th time it has happened since Ive brought the truck new

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 55 MPH, she heard abnormal knocking sounds coming from the engine. The contact veered to the side of the road inspected the vehicle but found no issues. The contact continued driving for a while before the failure recurred and the sound was much louder. The check engine warning light illuminated. The vehicle was towed to a local dealer to be diagnosed. The contact was informed that two rods had gone through the engine block and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 6,000.

At 7000miles truck had sudden engine failure, pulled to side of road and had towed. Dealership said it has a conmonly occuring failure of valve lifters causing bent pushrods.

Safety restraint t system failure - airbag lights on and airbags advised will not deploy if in accident

Electric steering control and driver assist malfunctioning along with engine misfire Been to the dealership 3x they have reproduced the issue unable to repair Chevy also notified apparently many other vehicle of my same type have this issue Happens daily till vehicle has run for a bit Unsafe till then Started at about 13 k miles still ongoing

Service safety restraint system with airbag light comes on then goes away this happens when going into a turn.

Lifters in the engine failed causing the truck to sputter and shake going down the highway. Barely could hold it in the road. Truck wanted to stall out while driving. Truck was fixed and made it 30 miles before the same thing happened again. Chevrolet has dropped the ball and needs to be held accountable for this problem before someone gets hurt or killed.

While driving East on I-24 with my granddaughter. I felt a thump much like hitting a big dog or something in the road. I looked at my 10 year old granddaughter, she was looking at me, she said what was that? I said I don't know, but it happened again in about 1/4 mile down the road. We traveled about another 1/4 mile when the truck started sounding like a machine gun being fired!! My granddaughter started crying as she was scared, I pulled over into the emergency pull off to check my truck. It was running good now and NO ENGINE LIGHT was on. So I continued driving toward Clarksville, TN. although I considered turning back and heading home. I thought maybe it was water in the gas or something. After arriving in Clarksville to pick up my two grandsons we started home. As soon as I got on I-24 west the truck started the same thing again. Felt like we hit a big dog and then started sounding like a machine gun being fired. This time the ENGINE LIGHT DID come on. I was afraid the truck was going to quit running and there I was with 3 grandkids on a very busy I-24!! I contacted Patroit Chevrolet where I purchased the truck at. They told me it would be 6 weeks before they could look at my truck!!!! I hung up but called back as I was afraid that I couldn't make it home, the truck was running bad!! They found that it had dropped a lifter, it had only about 6,300 miles on it!!! They had it for about 3 weeks. Now, I find out that GM has had a lot of problems with these motors, "A LOT of PROBLEMS"!! I,m sure the problem WILL happen again, I am hoping no one gets killed when it does. THIS IS A DANGEROUS PROBLEM!!! GM needs to replace these motors or buy them back or something!!!

Driving down the road and out of know where engine starting knocking and lagging, idled rough. Drove to dealer lifter failure was what was diagnosed. 10000 miles on the truck driven easy, no towing or anything. Dealer also informed me 3 other silverados were there for the same problem! Ridiculous!!

Lifters failed 7,588 miles November 2021. Dealer replace both lifter banks since trucks mileage was less than 8k miles.

My vehicle lost power to accelerate on an on ramp just before a bridge over the Wisconsin River and I was not able to merge into traffic. I was nearly put into the guardrail just before the bridge and I had to wait for the semis and other vehicles to pass and give me an opening. I drove straight to the closest GM dealership under reduced power. I was accelerating and would have been able to easily merge until suddenly my engine seemed to stall/lose power significantly. This caused me to slow down and not be able to get over as there were two semi trucks in the northbound lane of highway 39 in Kronenwetter WI. I have now found out that the power failure is due to something that is, according to my rough calculations happening very frequently to my model of truck for the years 2019, 2020 and 2021. I am curious to know how many trucks per year? One dealership told me they do about 2 trucks per week in Wausau and a dealership in Green Bay WI told me 3 per week. Rough math tells me that spanning 4500 certified GM service centers equals over 400000 vehicles per year. When does this become a safety recall if not a general recall to protect consumers? GM knows about this problem however they continue to put in the same faulty lifters in the vehicles and only fix/ put in upgraded lifters when they break. How can a car manufacturer put vehicles on the road and sell them knowing there is a potential no only to break but in instances like mine or others I can't even envision, cause an accident or worse?

Complete engine replacement at 174 miles. Lifters on left bank replaced at approximately 28,000 miles. Lifters right bank replaced at approximately 58,000 miles.

1 and 7 lifter failure occurred. Truck failed while driving on a congested highway putting myself and others at risk when speed was speed was reduced and truck eventually stalled. Truck was serviced by local dealer and confirmed lifter failure. KNOWN ISSUE!!! NO WARNING PRIOR TO MALFUNCTION.

I purchased my vehicle on 10/11/21 new with 4716 miles on it and on 10/27/21 a “service brake assist system “ came on along with the check engine light. I drove directly to Long Chevrolet and GMC of Athens, Tennessee. They scanned the codes and determine that the master break cylinder and associated system needs to be replaced. They kept the vehicle stating that the brake system could fail. It is now 11/6/21 and they have no estimated timeline on being able to get parts to repair my vehicle. I now have to make a payment on a vehicle I can not drive

Too whom it May concern Our 2021 Chevrolet Silverado 1500 had check engine light come on 7/5/21 called Chevy Service department was told Bring vehicle in if Light flashes, Light went off Service department said if it happens again to bring it in . It happened again 10/12/21 took vehicle in to service was told it was something too do with lift & Technician reset something & Did our first Oil change as this was a New Truck bought in 01/13/21 from them . Well 10/25/21 My Wife & I were Driving when we heard a loud banging noise coming from Truck we Also lost Power & Truck was shaking Bad . Called Dealership asap was told bring in Now . Service department said Engine was basically shot that engine lifters went bad & Probably had a bent pushrod. So Basically a catastrophically engine failure on a Brand New 2021 Chevrolet Truck with 7000 miles . Had this Happened on the highway @ highway speeds with sudden lost of Power This could lead too an accident & possibly a loss of Life . The Sad part is this has been a ongoing issue with the 5.3 & 6.2 engines since 2018 & Chevrolet is aware of it. They have No Fix and are installing the same defective Parts back only too have same issues again & again. Spoke with Corprate & They have No answers or cares my Wife said she would never drive Truck again especially since admission from a Chevrolet service Tech said it will happen again. This has been Long enough Chevrolet must recall these Vehicles & Apparently its All GM engines 5.3 & 6.2 whats it gonna take someone being Seriously hurt or Killed!!!!

Turned on my 2021 Chevy Silverado in my driveway and esc service notification popped up and check engine light popped up as well and then a loud clicking sound came from under the hood which turns out to be a bad lifter.

Driving the vehicle on October 10, 2021, with my fiancee and her mother in the vehicle. Upon exiting expressway I-75 a noise in the front end could be heard. It was a pinging/clinking noise that didn't change in frequency under braking nor under speed changes. It stayed at the same frequency of occurrence regardless of speed but wasn't present at vehicle stop or idle. It seems only to happen when vehicle is in motion. The noise became louder at lower speeds of driving. Vehicle was taken to a GM dealership on October 11, 2021, for repair. The dealer indicated that they could not repair the vehicle as GM issued a work instruction (PIP5653) stating no repair or resolution is available. GM indicates there is no problem to the vehicle however something is wrong with the front end axle and if it breaks then there is risk of accident as the wheel could lock up causing loss of control and/or loss of steering. Upon reading document PIP5653 I learned that all GM full size pick-up trucks and SUVs from model year 2019 to 2021 are effected. This is a huge population at risk for possible loss of control and/or loss of steering to be supported by simple GM comment. There must be a fix.

The monitor has disconnected many phone calls and rejected software updates. The monitor has been reported to the dealership and has been in many times for harness replacements, harness for the door locks and the timeframe for the repairs was a couple of weeks. The monitor still disconnects calls and I must pull the car over and restart the truck the monitor stays off sometimes until the monitor wants to engage. The history of the truck with this issue has been documented with the dealership

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at 50 MPH, the brake pedal was depressed as he began to approach traffic on the highway. As the contact began to steer the vehicle to the left, the entire front driver side wheel assembly detached from the vehicle without warning. Once the vehicle hit the ground, the driver and passenger-side air bags deployed and the contact hit the vehicle in front of him as he lost control of the vehicle. The contact was able to steer the vehicle off the highway and onto the left shoulder, the side curtain airbags then deployed as the vehicle came to a complete stop. Due to the failure, the brake line broke and spewed brake fluid throughout the engine and onto the road which resulted in an engine fire. The authorities were called to the scene and were able to extinguish the fire. A police report was filed. The contact did not seek medical attention at the scene but did treat himself for a scrape to the head once he returned home. The vehicle was towed to his home where it remained in his possession. The dealer was notified of the failure and he sent them pictures of the damaged vehicle. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 1,100.

Engine began to shudder, vibrate and lose power on the highway. Multiple codes were eliminated - check engine, service park brake, service ESC, service emissions system. Loss of motive power is a safety issue. Vehicle currently at the dealer for service. I have been notified it is a lifter issue and major engine repair required. GM Authority and other online forums identify this as a known major field issue and continuing to grow.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while his wife was driving on two occasions at approximately 20 MPH, the vehicle lost motive power and failed to exceed 20 MPH. The vehicle was towed to a dealer where it was diagnosed that the #2 lifter needed to be replaced. The vehicle was repaired but the failure reoccurred a few weeks later. Additionally, the contact stated that the vehicle stalled on three occasions while stopping and using the Auto START/STOP feature. The vehicle was not able to be restarted. On the last occasion, the brake pedal was depressed; however, the vehicle failed to stop as needed. The vehicle was taken to a dealer where it was diagnosed that another lifter needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 6,000.

the trailer brake serve light is on amd the parking brake will not come off, the truck is undrivable

Upon first start with 6-8 hours of being parked, the first shift from gear 1 to gear 2 has a massive hesitation that cause all passengers to lurch forward. It has not caused in issues for the quiet street we live on but in a high traffic area it would effect safety of entering into traffic. This issue happens every morning.

Driving along a highway at 65mph and a lifter dropped or rocker arm failed catastrophically. Loud audible pops and bangs without warning no "warning lamps" lights or notifications at all. Towed it to dealership under their recommendation as opposed to driving it there. Also there's a clicking metallic jingle jangle in the driver side from unless 4wheel auto is engaged.

while stopped,engine running,in gear,foot on brake the truck lurched forward approx 2-3 feet. when i tried to pull forward the engine was revving a much higher rpm's. moved down road approx. 1-2 miles, tried to turn around to return to a dealer near by and truck would not go into reverse...on-star reported to get engine/transmission service soon. reported to dealer, they checked the (code)? truck continued to run well....till it happened again....now it has happened a third time dealer has ordered parts to try to correct. dealer is trying, but no one seems to know what to do...

My truck has had lifter issues twice now. Finally, a new engine had to be installed and I have recently began getting the check engine light along with sputtering sensation while the truck is on idle. Also, I purchased this truck, brand new, and I was without it for close to six months.

Upon starting the vehicle got a alert on the dash DIC of, "Reduced Steering Assist, Service Steering System", or something similar to that. The vehicle was very hard to steer so I shut it off and restarted it seeing if it would reset since its electric steering, but it did not reset and was still difficult to steer. I was able to drive it home carefully since I was close to my home. After I got home I opened the hood to look but saw nothing wrong. I restarted vehicle again and the steering was back to normal and power steering was restored. I am very concerned because if this happens during busy traffic it could result in loss of control and a crash.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that he noticed that the front driver’s side bumper filler was slightly detached and was wearing down the panel. The contact took the vehicle to the local dealer and was referred to an auto body shop. The contact took the vehicle to the body shop and had the front driver’s side bumper filler and bracket replaced. The manufacturer had been informed of the failure. The failure mileage was approximately 3,000.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 65 MPH, the vehicle inadvertently stalled. Several unknown warning lights including the check engine warning light and the transmission warning light were illuminated. The contact stated that he was able to veer to the side of the road and turn off the vehicle. The contact stated that he restarted the vehicle, but the vehicle was shuddering and making abnormal sounds while driving. The vehicle was taken to the nearby dealer who diagnosed that it was a manufacturer’s error and that the engine and the gasket needed to be rebuilt. The manufacturer was notified of the failure and advised the contact that they would replace the engine instead of buying back the vehicle. A case was opened. The vehicle was not repaired. The approximate failure mileage was 15,000.

"no start" issue. Intermittent no start increased in it's frequency until it wouldn't back in July 2021, it had approx. 9600 miles on it. Had it towed to dealership. They could not recreate problem. I raised hell, and started reading that others had similar problem. A TSB came out that advised tech to install .5 shim. That seemed to have worked until recently late May 2022, have appt. with dealership again. They didn't do a scan the next day to pull a code since one might have shown up at that point. Most likely nothing there now. truck has been driven an additional 10K miles since initial problem and now shows 21400 miles. I can't have this problem every 10K, since soon this will be coming out of my pocket. and it needs a fix as others are having the same problem. GM has had well over a year to sort this out so I'm hoping if it isn't the cam sensor it's something else fairly straight forward. Heading in for service again on 6/15/2022 for same complaint.

On July 27, I encountered a failure of the rear vision display system on a 2021 Chevrolet Silverado. In short, the system used to display the rearview image went blank, and remained blank, the moment I first shifted the vehicle into reverse. Hence, no rearview image was visible while I was in the process of backing up the vehicle. I believe this may be a noncompliance with FMVSS 111 or a closely related safety defect (I worked in Safety Engineering at General Motors and Ford for a combined total of more than 30 years). I made a video to document this failure, and I uploaded it to YouTube. It is available at the following URL: https://youtu.be/zhBZwteAcBg This vehicle was provided to me as a loaner vehicle while my personal vehicle was being repaired by Quality Chevrolet in Escondido, California. Shortly after leaving the dealership, I pulled over to the side of the road and paired my cell phone with the vehicle. It took several attempts to successfully accomplish this. I then made a hands-free call and then proceeded to drive home. Within a couple miles, I decided to make a U-turn. Given the size of this vehicle, completing this U-turn required backing up. The moment I placed the transmission in reverse, the center display went blank and consequently no rearview image was displayed. Even after I shifted the transmission back to Drive, the center screen (which is also used to display other things like the radio station, time, temperature, etc.) continued to remain blank. However, the audio continued to function (noted at 1 minute and 15 seconds into the video). I decided to make a video to document the condition prior to turning off the ignition as my experience has been that such malfunctions are likely associated with software errors that can be difficult to track down and replicate. I drove this loaner vehicle several other times before returning it to the dealer. On each occasion, the rearview image displayed when the vehicle was put in Reverse.

The lifters in the truck are failing, a brand new truck 12,000 miles on it and the lifters have failed. Which is also leading to an oil problem. They are trying to only fox one bank of lifters instead of replacing both. Due to them wanting to wait until the fail. They have known about the problem and i bought the truck from them not knowing that the engine was a faulty engine. When you pay 70,000k for a truck you are expecting it to last a lot more than 6 months. Which is also causing the bent pushrods on the truck. I bought the truck brand new at the end of January, for the lifters to fail, valve springs, and for bent pushrods, I’m estimated to be out of my truck for the next 3/4 weeks which would bring it close to lemon law

Approx every 1,500 miles engine will crank for ~25 seconds and not start. This creates two safety problems 1) Defective part in engine could cause metal shavings in engine or some other form of part failure resulting in seized engine along with fire or accident. 2) Vehicle has start stop feature. Failure of vehicle to start at an intersection could result in a traffic accident. Vehicle was serviced at Chevrolet dealer where they stated vehicle could not be repaired without demonstration of the problem. Dealer did not inform me about, inspect or make repairs for two service bulletins that I found on the internet for the issue. One service bulletin is for a defective engine part. The camshaft target wheel could be bent and contacting the timing chain. The other dealer service bulletin is for a software update to correct a similar starting issue. For review, I uploaded the dealer service report along with both dealer service bulletins. I'd really like NHTSA to look into why GM is not informing vehicle owners about the software issue or the known defective engine part.