2021 Chevrolet Silverado Complaint Log

While vehicle is in 4-wheel drive or 4 auto or 4 L. It makes a grinding whining noise! I have contacted the dealer Newberry motors of Newberry MI 49868. I asked them about a service bulletin I saw on the noises I am hearing, and I was told service bulletins are only assigned to a vin number and not groups of vehicles. which is a lie!!! SO THE GRINDING NOISE IS BAD WHEN IN 4 WHEEL DRIVE. PERIOD. DOES NOT MAKE THE NOISE WHILE IN 2 WHEEL DRIVE. THANKS FOR ANY HELP THAT CAN BE PROVIDED!

Lifter failure

**The right and left front tires howling is so loud On this 2021 Chevy Silverado Z 71,it is deafening you would never be able to hear a rescue squad. ** This vehicle is available for inspection upon request. ** we feel that we are at a safety risk because of the howling being so loud is deafening. This is definitely a safety risk and a hazard. ** this problem has been inspected by Burtness Chevrolet in Orfordville Wisconsin on October 26, 2022. ** this vehicle has not been inspected or component been inspected by the manufacturer, police, insurance representatives. ** This 2021 Chevy Silverado Z 71 had no warning lamps, messages or other symptoms of the problem prior to the failure of the 2 front tires. October 19,2022.

LT 275/65R18 **Both right and left front tires are very deafening when driving down the highway. ** yes this vehicle is available upon request. ** Our safety is at risk because the tires right and left front Howell so bad we would never be able to hear a rescue squad. ** Burtness Chevrolet in Orfordville Wisconsin confirmed there is no problem at all big trucks sound like this. This vehicle is going in for an inspection Monday, November 14, 2022 at symptoms Chevrolet in Evansville Wisconsin. ** This 2021 Chevy Silverado Z 71 has not been inspected by the manufacture or the police or insurance representative. ** This 2021 Chevy Silverado Z71 had no warning lamps, messages or other symptoms of the problem prior to the failure of the left and right right front tire. The left front tire was evaluated by Burtness Chevrolet in Orfordville Wisconsin on October 26, 2022.

Window switch failed and I was unable to roll down the window. Dealer confirmed and performed repairs. Problem occurred on a dry day with no previous issues and the dealer stated it was manufacturing defect with the switch.

Power hesitation, along with loud knocking sounds coming from the engine. Cause truck to completely shut off while driving 35mph. No warning lights or anything came on until complete failure

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the vehicle was making an abnormal knocking sound while driving at various speeds and while idling. There was no warning light illuminated. The vehicle was taken to the dealer, where the engine lifters were replaced; however, the failure persisted. The vehicle was taken back to the dealer, where the contact was informed that the engine abnormal knocking sound was not sufficiently loud to issue a recall. The vehicle was not repaired. The contact related the failure to NHTSA Action Number: PE25001 (Engine, Engine and Engine Cooling). The manufacturer was not notified of the failure. The failure mileage was approximately 11,000.

Per the repairing dealership, a lifter went bad. GM will not replace all of the lifters, just one side of the engine, due to the vehicle having over 8000 miles. Mine currently has 12,500. I no longer feel safe knowing that GM is replacing only half of the know defect with new parts that have the same issue (Told to me by the repair facility.) The vehicles engine could fail again, resulting in loss of acceleration. No warning was observed during, however after the fact, check engine and other warning lights were illuminated.

Engine misfire due to faulty valves which caused vehicle to lose power and stall. Check engine light began to flash on dash. Took directly to Chevrolet dealership. Dealership confirmed faulty valves and bent pushrod on left side of engine. Dealership to repair engine under warranty. Dealership stated that right side engine valves had already been replaced in November 2021 at approximately 13,000 miles. This was before I purchased the truck in May 2022 and I was not made aware of this repair. Truck now has 22,900 miles. Dealership stated that this is a known issue with Chevrolet 5.3 liter engine and they preform similar valve replacements on this engine at least once a week.

Dealer said lifters failed. Was stuck in middle of interstate for 2 hrs

Body control modules sas modules no communication service esc light and traction control lights coming on vehicle looses all steers ng when lights come on at any speeds it says service esc power steering loss drive with caution have had it into multiple shops and no diagnostic scanners can get into the 3 systems there 6050 miles on vehicle we haven’t gotten in a wreck yet but that is totally not out of the question it will happen and when it does its going to be devistating

The transfer case has locked up several times causing me to wreck once. The engine misfires and does not give the MPG advertised. The life of my family has been put at risk with little to no care from the dealer after several attempts for service.

Engine oil cooler defect was diagnosed by chevrolet dealership. Everytime I drive the truck, it would leak oil and would have a burning smell all underneath the truck. The part was on backorder for over a month and a half. After this long wait of not being able to drive the truck, the dealership finally put a new oil cooler in. The problem persists and they are not able to figure out from the engineer what will solve the problem. I have been out of a truck for over a month and a half now with no hopes of the issue being resolved.

2021 Silverado RST, 5.3. Started having strange loud random clicking sounds when first starting. Would loose power, at take off or when trying to accelerate. This was at 9400 miles on the vehicle. Was not showing any check engine light or issues on dash. When examining engine compartment, found loose bolts, that had broken. Took it to local Chevy dealership, acted like there was nothing wrong with it. Instantly trying to get out of performing work. I had a feel it was going to be lifter issues. Found out while there around 4 thousand miles it already had lifters replaced. After debating with them for two days, and trying to convince them there was issues. They finally found multiple problems with lifters, misfiring, rocker arm not moving due to collapsed lifter. They found broken bolts in cylinder heads. Ended up having to replace all left and right side lifters.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that upon starting the vehicle, the vehicle failed to steer as needed. The service now message was displayed. The vehicle was restarted three times, but the steering remained inoperable. The vehicle was taken to the local dealer, where the system was reset. The dealer was unable to duplicate the failure. The vehicle was not diagnosed or repaired, but the failure recurred. While starting the vehicle, the power steering functionality was inoperable. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 27,000.

Smell gasoline inside the cabin. Vehicle jerk when moving gear from reverse to drive or drive to reverse.

MY PICK UP WAS HIT FROM THE REAR THE DRIVE SHAFT BROKE AT THE WELL AND THE REAR BROKE BOTH SIDE OF THE AXLE TO THE HOUSING OF THE REAR I HAVE PICK OF THE REAR AND THE DRIVE SHAFT.

July 18th 2022 16,059 miles engine issues again. This time was 21 hours from home. Cause reported was oil pump failed. New engine to be installed. Asked if previous engine issues was resolved aka lifters but couldn’t get a 100 precent yes or no. Truck now has little over 30k and from time to time makes noises like lifters chattering. I pray it’s been addressed but fell it may still fail again. Just will it be under warranty or out of warranty next time.

This 2021Chevrolet Silverado 1500 LT Trail Boss I purchased new April 2021. Since I have owned it the check engine light would flash randomly with or without a load and now just this past weekend (7/17/2021) the check engine light stayed on. Took it to the Chevy dealer for repair and was told it was a lifter problem. I recently just purchased a camper, well under GM allowed towing capacity, and worried that if the engine should fail either up hill or down hill that there could be loss of control of vehicle from other systems shutting down.

ENGINE LIFTER FAILURE AT 17K MILES. SIGNIFICANT LOSS OF POWER AT TIME OF FAILURE. ROUGH IDLE AFTERWARDS WITH TRUCK VIBRATING. NO WARNING LIGHTS AT TIME OF FAILURE. STOPPED VEHICLE AND SHUT OFF ENGINE. NUMEROUS WARNING LIGHTS ILLUMINATED UPON RESTART. VEHICLE TOWED TO DEALER. PASSENGER SIDE BANK OF LIFTERS AND RODS REPAIRED UNDER WARRANTY. SUBSEQUENTLY, DRIVER SIDE BANK OF LIFTERS FAILED AT 23K MILES. NO WARNING LIGHTS. AS BEFORE, SIGNIFICANT LOSS OF POWER AND NO THROTTLE RESPONSE. POWER LOSS POSES SIGNIFICANT RISK/DANGER WHEN MERGING INTO TRAFFIC. SECOND EVENT IS CURRENTLY AT DEALER FOR REPAIR.

At 7,316 miles my 2021 Silverado 5.3 V8 had lifter failure while driving, the truck would not accelerate correctly and I was forced to pull off the road, luckily it was able to turn off at the next road before the vehicles behind me caught up. The check engine light was blinking and was making a lot of popping noises. I was able to take back roads and drop it off at the dealership for repairs.

Collapsed Lifters an Bent Push Rods

Lifters blew in my brand new engine with only 18k miles while driving. Engine was shaking & knocking & lost power when trying to accelerate.

I was on interstate 85 and the whole truck started shaking and check engine light, service ESC light and service parking brake light came on. Thankfully I was near and exit ramp and got off as I had almost no power. I limped my truck back to the dealership where they diagnosed it as lifter failure and replaced both banks of lifters. This is a known problem with General Motors and is simply a matter of time before a terrible accident occurs.

Vehicle: 2021 Chevrolet Silverado 1500, 3.0L LM2 Turbo Diesel Mileage at most recent failure at 106k miles Complaint Narrative This vehicle has experienced repeated, serious defects affecting engine, transmission, emissions system, and safety recall performance. Despite numerous repair attempts over three years, the problems remain unresolved and the vehicle is currently undriveable and held by the dealership (since August 17, 2025). Key safety concerns: Transmission failure: Transmission catastrophically failed at 78,942 miles due to excessive metal contamination, requiring full replacement. Transmission issues have persisted even after replacement. Recall N24254440 (rear wheel lock-up): Dealer attempted recall repairs multiple times in 2025 but failed due to programming errors. Recall remains incomplete and unresolved. Hard starting / reduced power: Vehicle intermittently fails to start or loses propulsion, creating risk of stalling in intersections or traffic. Engine/emissions failures: Multiple check engine events with NOx sensors, exhaust differential pressure sensors, and coolant flow valve failures. Current status: Vehicle has been in dealer custody since Aug 17, 2025, with no completion date. Dealer reports unresolved oil leak, check valve/box sensor replacement pending, and open recall not fixed. The cumulative history shows systemic defects across powertrain and emissions systems, ongoing safety recall failures, and lack of durable repairs. I am providing all invoices, videos, and documentation upon request. --- Chronological Service Timeline Invoice #Mileage (in/out)DateReported Issue / Repair Attempt 33432337,290 → 37,62607/11/22 – 07/30/22Check engine light. Multiple fault codes. Dealer performed diagnostics, suspected exhaust leak, removed components for inspection. 33433837,450 → 37,50807/

The 2021 silverado v8 randomly started making a knocking noise. The steering wheel would shake randomly as I accelerated and stayed above certain speeds. I’m barely able to drive slowly residential speeds at most. If I drive any faster I’m worried for my safety that the car while break down in the middle of a busy road posing a danger to my family and those around me. I’m not sure if this is a lifter issue, or engine issue but it seems to be a widespread issue that I haven’t recurved any recall notice for.

I have a 2021 Chevy Silverado. The #3 Cylinder has failed and an all new lifter kit needs to be installed. Truck was knocking violently and died. Dealership stated the parts on back order nationwide and they have no clue when replacement parts will arrive.

2021 Silverado Trail Boss. Went to the store, came outside started the truck and it showed me ESC Warning and Power Steering Failure Drive with Care notice on the dash. The Steering was very hard to turn. I tried multiple times, and it did not work. I started reading information on line and found out that there are multiple truck owners who had same issue. I saw some information to leave the truck off for 20 - 30 min and try again. I left it off for 30 min and started again. At that time it started fine. I am going to the Chevy dealer because this can also happen while I am driving and it can cause an accident. My truck has only 12k miles.

Truck caught on fire while driving down I75 interstate in Florida. No component or system failure lights where present. Smoke was smelled by the passengers and within seconds the truck was on fire. The safety of the passengers was at FULL risk, and lucky to be alive! The truck was full engaged as soon as the truck pulled over on the side of the interstate. Investigation by GM & Insurance company took place. The truck is available for further investigation. We are unsure how the fire started. It did come up from both sides of the cab, and very quickly. Nothing has been confirmed by any inspections completed by GM & Progressive. GM & the Service Dealer are not engaging as they should be.

Vehicle engine has experienced engine lifter failure at 28,000 miles. Engine began shaking violently, check engine lights flashing, traction control light, and stability control lights all came one while driving on the highway several hours away from home. Vehicle had to be towed by Chevy roadside assistance to the nearest dealership. Chevy dealership inspected and said they have to order new lifters for my engine and it would take several weeks for repair.

Add 1 more victim to the ongoing and growing list of GM owners of vehicles with 5.3/6.2Lmotors with DFM lifter failure. 50 miles after returning from a 500 mile trip from N. Wisconsin fishing trip this motor threw in the towel. Dealer assessment cylinder #6 lifter failure with an extra bonus of damage bad enough to require replacement of entire cylinder head! This motor has 11K. miles on it, and I have had oil changed multiple times as I am old school and don't buy into the whole 7500K. thing. Guess I should have saved my cash for something more fun! Check engine light did not come on till almost 2mi. after vehicle started running badly, flashing check engine light did not come on till I was almost home 15 mi. Had it towed to the dealer on my own dime!

Truck started having a rough idle and was popping and banging while driving. It was hesitating while driving in traffic and would slowdown and jerk while trying to drive to the dealership. It stalled at red lights multiple times. Once it got to a dealership and they identified it as #4 cylinder lifter was malfunctioning. They have not yet disassembled the engine yet to find out the extent of the damage. This is a known issue with these trucks and GM won’t issue a recall to proactively fix the issue before more damage is done to the motor. Some of which may not show up until after the warranty expires. There was no warning light or check engine light on at anytime. The dealership service department was very surprised by this. Now I’m without my truck for at least 2 weeks with no loaner of voucher for a rental. The truck has less than 19,000 miles on it and has had all regular maintenance done at a dealership.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving approximately 10 MPH, there was an engine misfire and then a knocking sound started coming from the engine. There were no warning lights illuminated. The contact had the vehicle towed to the dealer who stated that there might be a failure with the valve lifters; however, a diagnostic test had not been performed. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 40,000.

I was driving 65mph down the freeway when the truck suddenly turned off and the dash told me to put in neutral and start again so I did just that. Made it about another mile and the truck completely turned off and wouldn’t turn back on there was nowhere to pull over or get off the freeway in that time frame so I was stopped in the middle of the highway with my family in the truck. Luckily a guy in another truck was able to push me over to the shoulder with his vehicle where I sat and waited four hours for a tow to the dealership. Two days later they called me and told me it’s spun a bearing and threw two rods and needed a new engine. I’m anal about servicing my vehicles they told me it just happens, but it was a brand new truck with only 35k miles. Ever since I got the new engine installed it’s constantly squeaking and they can’t seem to pin point the issues I feel like it’s going to happen again and this next time I’ll probably be out of warranty and it’ll be out of pocket for me to fix.

Speed limit 70mph and driving on the highway, suddenly the vehicle began to shake and the engine light came on and the vehicle was making a forced deceleration to 40mph. Other vehicles had to swerve to avoid my vehicle, as I was attempting to pull off the highway safely. "service brake system" alarm also came on. The manual advised when getting this alarm to have the vehicle towed. Once at the dealership this note was on my service papers " Customer stated engine light was on and truck running rough and shaking, review of DTC's showed cylinder misfire on #3, tested showed possible issue with spark plug. Relocated coil to different cylinder to see if issue followed. Misfire still noted on cylinder 3, replaced spark plug and conducted test drive and note misfire still present on #3. Removed valve cover and noted failed lifter on intake valve for cylinder #3. All lifters replaced on left side of engine." The dealership stated that "this is a known problem for the 5.3L V8Ecotec engine, that the lifters FAIL." I am a female, I was traveling alone and had to find tow service and pay up front. Once transported 20miles to the nearest dealership, on a Saturday afternoon, I was stranded at a hotel for 2 days waiting for the dealership to open and check out the vehicle. If this is a "known" problem with this engine, THEY SHOULD BE RECALLED. Now I get to worry when the other side of the engine's lifters will 'fail' so they can be replaced under warranty. This is unacceptable in an almost new 2021 truck with 20,000 miles on it.

2021 Chevy Silverado durmax brought it in three times now for starting issues 2nd time found data module was bad two weeks later brought it back for same issues. Dealer said they can’t find anything wrong I’ve broke down on hwy 5 in. Dangerous spot and know I don’t feel safe driving this.

Vehicle will not start and cranks until starter kicks out, about 30 seconds each time. I am afraid if this happens at a traffic signal or stop sign it could be bad. I took it to the dealer on July 30-2022. (2972 mileage) and they could not verify concern. I found a safety bulletin on a GM website for a extended crank/ no start. It is PIP5806D, The dealer says they know nothing about this. It lists a labor operation number 4088148, due to a corrupt signal from camshaft position sensor to the ECM. It has happened now 4 times, and current mileage is 6973. I have been dealing with Champion Chevrolet in Reno NV. It has started after 8 to 10 crank time outs and the battery starts slowing the crank speed down, but around 10 to 15 minutes have passed by then.

At 2000 miles my truck developed a new “fluttering”, “ticking sound” once all cylinders reactivated as apart of the dynamic fuel management system. After bringing the truck to dealership, they proceeded to replace the lifters, the exhaust system twice, and performed a computer reflash. The truck was at the dealership for over 45 days within the first 6 months of ownership. After all the repairs, the sound is still audible and getting worse. In addition to this sound, at around 30,000 miles the transmission has now developed an audible clunking sound that can be felt once on release the gas peddle under slower operating speeds. After trying to engage with GM on simply understanding what the problem is and why there is the need for so much repair on a brand new vehicle, I am candidly fed up and let down as long term GM customer.

Vehicle began having issues at 3 months old... Random service messages, defective headlight, wierd engine noises at startup and stalling upon acceleration/deceleration. I took it to the dealer several times about the issues I were having but they always say they aren't able to replicate any issues. 3 months later I was driving on the highway and the engine started knocking. Had it towed to the dealer and it took them 6 months to replace engine, tcm, starter, and other parts. After finally getting the truck back, it was still stalling and there was a check engine light... Dealer did not reassemble the vehicle properly and several parts and bolts were still missing. It went right back in the shop and catalytic converters were replaced. I also mentioned missing parts and bolts. I get the truck back again and it still seems like it wants to stall. I was turning into a parking lot a few days later and it seemed like it wanted to cut off. While I was distracted trying to see if the truck cut off, I hit a small pole... Truck was damaged way more than it should have been because the dealer did not reassemble it properly. Body shop said my bumper was only held on by 2 bolts and several other bolts and pieces were missing. They said if my bumper was attached properly the damage would not have been as bad. The vehicle was already unsafe because of stalling and the dealer made it structurally unsafe as well... I have opened cases with gm and they aren't doing anything about it. Here this truck is 14 months old and it's been in their possession more than mine... I have asked them about replacing the vehicle and they insist on fixing the issues but never do and I end up driving an u safe vehicle around.

My 2021 Chevrolet Silverado started on fire and blew up in my driveway. I had just returned from the store, parked it and went inside. No more than 3 minutes later, my neighbor came running over to tell me my truck was on fire. There were no issues at all while I was driving the vehicle. The township fire department said this is the 4th 2021 Chevrolet Silverado that has burst into flames in the last 6 weeks. They said they all had the 2.7L Turbo engine, as well. The truck is a complete loss. I have contacted the dealership and Chevrolet about the issue and have not heard back yet. The fire started in the engine compartment and quickly raged out of control. The hood and engine disintegrated from the heat. The vehicle was towed away and the insurance adjuster has yet to go out and look at it. If I would've been stuck in traffic on the way home, I would have been in the vehicle and may not be here typing this report right now. It went up that fast. This is a major safety issue that needs to be thoroughly investigated before somebody loses their life. It nearly caught my house on fire, but thankfully there was only minor damage to some garage trim and the driveway is ruined. Please investigate this issue immediately. This was a pretty traumatic experience, to say the least.

When I start my Chevy Silverado 1500, three warning lights come on that are telling me that I have brake system failure 43 MPH top speed, Service ESC and Service Trailer Brake system. When I drive, the brakes are very mushy and the truck is very difficult to brake. 20 minutes later after stopping and getting ready to take the truck to the dealer, the brakes worked fine. The dealer couldn't replicate the problem at first, but finally had the issue when they were putting it on the rack to perform improve my tire alignment, so they said they updated the software. The truck brakes worked fine when I left the dealership. The next day (Saturday) I went to start the truck and the same issue happened. I can't take it in as Service is not available on Saturdays so I started looking online. Apparently there are several other owners dealing with this same issue and have been for years. I have read that it might be a variety of things causing this issue, but someone needs to get this resolved ASAP as I have read about some getting into accidents regarding this. My truck is only 16 months old and only has 14,000 miles on it.

Batter dies for when it's cool out side and the truck has a brand new battery. The battery has since I've had the truck .replaced the battery last year and it stills die..when it's cool outside..false reading on brakes had them checked twice at the dealer ship .the truck loses power when turning the corner and I makes a loud clunk nose when I drive..

The contact owned a 2021 Chevrolet Silverado 1500. The contact stated that approximately 35 minutes after parking and turning the vehicle off he was notified that the vehicle had caught on fire. The fire department was called to the scene and extinguished the flames. Upon inspection, it was determined that the fire originated in the engine compartment. A police and fire report was taken at the scene and the vehicle was towed away. During the incident, the vehicle was destroyed. The manufacturer and local dealer were notified of the incident. The failure mileage was 12,000.

I was driving and noticed several loud clunking noises coming from the Engine bay. The truck began to cut out, shake, and misfire. My dash began to flash and state I had a parking brake failure. I had no choice but to be towed. I have just shy of 17,000 miles. The dealership stated I had two lifter and 1 rod failure. They replaced the rod and all lifters on one side of the engine. I took the truck home for one night and it broke down again. The dealership stated it was fixed for a second time. When I picked it up again, I made it 1 mile down the road before the truck had the exact same symptoms with shuddering and misfiring. It is at the dealership for a third time. I was surprised to fin several class action lawsuits now filed against gm concerning the lifter issue. YouTube is full of lifter issue videos. This should be fully investigated and obviously warrants a recall for lifters, rods, and the camshaft.

Around May 20th, 2022, I was driving the pickup when it suddenly the engine turned off on me. I was travelling at approximately 40 mph on city streets and was able to control the vehicle and park the vehicle and restart it. That same week, I took the vehicle to Chevrolet on the city of Orange, where it was inspected. According to the mechanic, no issues were located. Nothing else was done to the vehicle and as a result, I fear the same issue will happen again in the future.

On April 29, 2022 between 4:45 - 5:00 pm Eastern, I was dropping off my son at work when I suddenly experienced a variety of Truck Diagnostic Error messages on the front driver display window. In addition my OnStar advanced diagnostic alert system informed me with the following system issues: Engine and Transmission; StabiliTrak stability control; Antilock Brake; and Emissions. At that moment the truck experience a cut in power and slowed down with a knocking sound coming from what seemed under the truck. I slowly proceeded to drop off my son and drove back home and parked the truck. Truck was towed to local Chevy dealer on Friday of that day. A preliminary diagnosis was done Saturday, April 30 suggesting an Engine Lifter issue. On Monday, May 2, 2022, a final diagnosis determined engine lifter failure on one side of engine bank. Vehicle is still under Warranty with 17,400 miles on it.

Intermittent power steering failure.

I was not personally at risk during my incident, but I can see how I could have been if my situation was a different. My 2021Chevy truck suddenly lost engine power at a traffic stoplight. It almost stalled coming to a stop. Then when trying to accelerate, it had very low power, and was stumbling. I was only a mile from home, and not busy traffic, so I managed to make it home. Driving very slowly with the engine clearly under very low power. No CEL or warning lights came on. After getting it towed to the dealer the next day, the dealer informed me it was a failed lifter and bent pushrod. After a little google searching, I found it is a common failure in newer GM V8s. I also learned my truck was built in a date window that GM issued a Service bulletin for lifter failures. According to forums and Facebook pages, Many other owners have had the same problem. Even 2-3 time failures with some owners. Even after repairs. Either in the date range of the bulletin or outside of it. My specific situation wasn't dangerous, but I could see how it could be, if I were on a busy highway, or if the truck completely lost power. As far as I see, no Recall has been issued, just many internal service bulletins over several years. And even a class action lawsuit in regards to lifter failure. My truck was fixed with all lifters replaced with an updated part number. 5000 miles since the repair. Gm did a good job with the repair, and after some communication with GM customer service, they replaced all the lifters, and not just the broken one. This gave me a bit more peace of mind, but I worry with so many failures posted online daily, and without a documented case on NHTSA this will continue. Thanks

Service Engine Soon lamp illuminated with extremely rough running engine, would barely keep running. Dealer diagnosed misfires on cylinders 1, 3, 7, with cylinder 5 showing the most misfires. Tear down revealed defective lifter on cylinder 5. Repair under warranty included replacing all bank 1 lifters. Mileage of vehicle was 19566 at time of repair

The contact owns a 2021 Chevrolet Silverado. The contact stated that while driving at various speeds, a flashing check engine warning light appeared on the instrument panel. The vehicle was taken to a dealer where the received fault code PO300 which was a general code for a misfire in the engine. The contact brought the vehicle back to the dealer multiple times due to various fault codes; however, the contact was given the same information. The contact then received a "Low Oil, Check Oil", the contact checked the oil and discovered no oil on the engine's dipstick. Due to the failure, the vehicle was towed back to the dealer where they began an oil consumption test. The valves collapsed and the dealer replaced the valve in cylinders 1,3,5, and 7 as well as the spark plugs. Despite the repair, the contact stated that the failure returned almost two months later. The contact continued the oil consumption test and stated that the vehicle was losing 3 quarts of oil each oil change. The manufacturer had been notified of the failure on multiple occasions and had made multiple vehicle buyback requested; the manufacturer denied each buyback request. After his latest phone call with the manufacturer, he was referred to the NHTSA Hotline to file a complaint. The vehicle was not repaired. The failure mileage was 12,000.