Owner-reported complaints naming the engine system, filed with NHTSA
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Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2026 Chevrolet Silverado 1500 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 42 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
The 25 most recent of 42, in the owner's own words
I was making a sharp turn going about 6 miles an hour. The vehicle suddenly stalled and shifted to neutral. A message appeared on the dash stating, “Please restart vehicle.” The vehicle restarted without issue and no error codes were displayed.
I just purchased this vehicle on XXX and on XXX, with less than 300 miles on it, we were in a parking garage at the Galleria Mall in [XXX]. While driving slowly uphill in the garage looking for a parking space, the vehicle suddenly went into neutral and the engine shutoff. After verifying all was well, I restarted the truck and continued to drive. It happened two more times with the same situation, low speed going uphill. I have not taken it to a Chevy dealer yet for diagnostic as there were no lights like the check engine light and no codes presented. My onstar app reports that all is well and no issues, so I know it will not be something they can find when they try to pull the codes. I did a search on the internet for this issue and found others with the same problem, no known fix, and in one case the person was able to return the truck and they purchased a different truck from a different manufacturer. That gentleman said he did try to work with GM at the regional level with a service rep. He said something is causing the voltage to drop in lower gears, causing it to invoke a safety feature to stop the vehicle by going into neutral and shutting off the engine. On an incline, with no engine, the brakes become very hard to push and the vehicle could roll back. In a parking garage, that could mean rolling back into a person or another car. When it happens there are in internal codes that do not show up, but are wiped when you re-start. There are threads on Reddit and in Facebook groups that discuss this issue as well for further evidence. My purpose is to get this documented outside of GM, it seems like a niche problem, but one that could be dangerous in the right circumstances. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I purchased a 2026 Chevrolet 1500 Duramax Deisel truck. At 9500 miles the truck started making popping and loud grinding noises and would shake while driving it. I barely made it to the dealership on August 6th 2026 I took it to Group 1 Chevrolet where I bought it in Houston,Texas and on August 8th was told that they need to replace the engine and do not have an estimated time for repair.
2026 Chevy Silverado High Country with 13,193 miles 6.2 engine locked up on 7/29/26 and is currently at my dealer waiting on engine replacment. GM has not fixed the 6.2 liter engine failure issue's!
The engine in my 2026 Chevrolet Silverado ZR2 with the 6.2L V8 had a catastrophic failure. While I was driving, the engine suddenly shut off and seized without any warning. The dealer told me they found metal in the engine oil and oil filter and that the engine needs to be replaced. They also informed me the replacement engine is on back order for more than five weeks. The truck is available for inspection. How was your safety or the safety of others put at risk? My truck lost all power while I was driving, which put me and other drivers at risk because it happened without warning. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. The dealer inspected the truck and confirmed the engine had an internal failure. They found metal in the engine oil and oil filter and said the engine must be replaced. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The truck has been inspected by the dealer. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? No. There were no warning lights, messages, or other signs of a problem before the engine failed.
The engine (6.2 liter) on my Chevrolet Silverado fail with less than 2335 miles. It was confirmed my the Chevrolet dealership(Hendricks Chevrolet ). No warning lamps appeared in the dash or warning from my onstar maintenance notification.
At approximately 3,000 miles, the engine began making a loud knocking noise that became progressively worse while driving. The truck was diagnosed as needing a complete engine replacement. No warning lights, no check engine light, nothing. For someone inexperienced with vehicles, you could easily be in big trouble on the highway and a potentially life threatening situation. My primary concern is that there was no warning that such a major engine failure was about to occur. An engine that fails with so few miles raises concerns about the possibility of sudden loss of power, loss of acceleration, or engine seizure while driving in traffic, on highways, or while towing. A failure under those conditions could significantly increase the risk of a crash. The vehicle has been out of service while I continue making loan and insurance payments on a brand-new truck that I cannot use. The replacement engine is on national backorder, leaving me without a clear repair timeline. After researching this issue, I found numerous reports from other owners describing similar failures involving the 6.2L V8 engine. Based on the volume of owner complaints, there appears to have been a significant increase in reported engine failures involving 2026 model-year vehicles. This suggests the problem may not be an isolated incident but instead could indicate a broader defect that deserves investigation. As a result of this experience, I no longer feel confident or safe driving this vehicle, even if the engine is replaced. I purchased a brand-new truck expecting long-term reliability and peace of mind, but instead I experienced catastrophic engine failure at only 3,000 miles. I respectfully request that NHTSA investigate these engine failures to determine whether a safety-related defect exists and whether further action is necessary to protect consumers. I have requested a buyback, but GM completely denies it. Such a horrible Expy with manufacture.
A.The engine is stalling while driving. This has happened four different times. Three times while towing, and one time while backing up a small hill. This is a scary situation because three of the four times almost caused an accident. 1.We were driving to Texas, pulling a pontoon boat. While exiting the highway, we were entering into an intersection at a speed of about 10 miles per hour, and the truck shut down. The truck said, “Start the motor and place it into gear.” Or something similar to that. 2.We were in stop-and-go traffic on the highway, and the truck shut down. Once again, I had to restart the motor and shift into gear. 3.We were entering a parking lot from the main road, and the truck shut down. Again, I had to restart the motor and shift into gear. 4.The three times above are during a time when we were towing. The fourth time is when we were backing up a small hill. The rear tires lost traction and spun for a second or two, and then the truck shut down and started to roll forward. Once again, I had to restart the motor and place it into gear.
I have been having issues with my vehicle for the last 1,000 miles or so where it appears to be losing power while accelerating normally, i'm not sure if the issue lies with the engine or powertrain/transmission. I took to dealer last week and they were unable to reproduce. The issues have been getting more frequent and intially were only occuring after the vehicle warmed up, now it has started while vehicle is cold. Feels like the power drops (rpms drop) during a normal acceleration. As of 7/16 I now have a check engine light on, onstar indicates an issue with my engine, transmission, electrical. This is putting myself at safety risk along with others as during my normal drive the engine is losing power and could either leave me stranded or cause an accident.
On XXX I was driving from [XXX] to my sister's house in [XXX]. I was relocating to [XXX] for a job. I was pulling a U-haul trailer (6x12) that contained significantly less weight than the truck can handle. About halfway there, on back roads, the truck suddenly slowed significantly and the gas pedal was unresponsive. The light in the dashboard read Reduced Acceleration - Drive with caution. Pulled over, turned off truck, opened driver side door, to reset the truck (read this on google). We had to do this a couple times, because it would just go back to that behavior after a bit. We made it to my sister's house to stay the night. In the morning, XXX, I called the local Chevy Service Dept in [XXX] and asked if I could bring it in, I described the problem. During the drive to the shop, the same issue occurred. Upon arriving at the service dept, the Trailer app was giving a warning that the load may be heavier than max. Which cannot be true. The dealer techs said they had never seen anything like it before, but they seemed to know what to look for. They then informed me that they could not loan me a car because I was traveling out of state. I had a deadline, so my only option was to rent a U Haul box truck, unload the back of my truck into it, hitch the trailer I already had to it, and drive to [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
On Monday, June 29, 2026, I was getting off the New Jersey Garden State Parkway. I was halfway down the exit ramp and the engine and the engine just stopped. I coasted to the bottom of the exit ramp and luckily had just enough shoulder to pull over to get out of traffic. Once stopped, I attempted to start my 2026 Chevy Silverado, but all attempts at starting the engine were fruitless, as the engine would not even turn over when tried. I contacted On Star and a tow truck was sent to tow my truck to Burke, the GM dealer I purchased the truck from. It was confirmed by Burke GM on Wednesday, July 1, 2026, that the truck needed the engine replaced. The truck is currently at Burke GM and I have been there to get belongings out of the truck so yes, I would say it’s safe to assume that it is available for inspection. There were no warning signs of any problem with the motor at all.
2026 SILVERADO ENGINE BLOWED UP AT 6,413 MILES. THIS IS THE 6.2 L87 ENGINE..
While driving my truck returning from a camping trip I received the following warnings in the dash: Service ESC, Service traction control, forward collision system unavailable. Check engine light was flashing. I made the assumption that the Check engine light was due to the warnings listed above. I continued to drive the vehicle until I began to feel a very noticeable shudder at idle, at low speeds, and also loss of power at higher speeds. The truck has the 5.3 ecotec engine with DFM. After researching the symptoms, I found that these symptoms are identical to the know lifter problem with that engine. The truck is a 2026 Chevrolet Silverado Trail boss with approx. 3454 miles on it. It's currently at the dealership waiting for them to "diagnose" the problem. I was told that it may just be a "faulty sensor", but after reading other people's experience with this engine I believe that the real problem is a damaged lifter/lifter pin due to the poor design and engineering of the DFM system
The contact owns a 2026 Chevrolet Silverado 1500. The contact stated that while driving 25 MPH and attempting to depress the accelerator pedal, the vehicle lost motive power, the contact attempted to start the vehicle, and the vehicle operated as intended. The check engine warning light was illuminated. A dealer was contacted. The vehicle was taken to a dealer to be diagnosed; however, the diagnostic result was unknown. The dealer cleared the codes, and the vehicle was then taken to another dealer, where it was diagnosed and determined that the ground strap needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the part was on back order and might take six months for the part to do the repair to be available. The approximate failure mileage was 4,000.
This incident occurred 24, June 2024. Time was approx 1745hrs and temperature was 93 and humid. Was stopped at a stop sign, attempted to make a phone call and reached to temporarily turn off the air conditioner by pushing the on/off button. When I pushed the button, it turned off the vehicle engine completely! When I was startled as to what had just happened, I pushed the air conditioner button a second time; It STARTED the truck's vehicle engine! I repeated this test three times in the presence of my spouse who was also in the truck. We then drove approximately one mile and at a second stop again was able to duplicate the engine turned off/on by pushing the air conditioner on off again! It was if the air conditioner on/off button was the vehicle start stop button. I did not try to duplicate this under roadway speed, fearing if the engine did in fact turn off, simply by pushing the on/off air conditioner button. It would most assuredly result in the complete loss of driver inputs for steering, brakes and control.
Service brake assist warning came on the day before a severe audible engine knock started. Drove to nearest dealer and they immediately diagnosed as a probable engine failure/engine bearing/connecting rod. 6.2 liter engine 9500 miles
Normal driving then heard a knocking and squealing. Was told it was a spun main bearing on the crack shaft.
Defect: Engine failure caused by lifter and camshaft failure at 114 miles (5.2 engine hours). The vehicle is at the dealership undergoing warranty repairs. The service department confirmed a seized lifter, necessitating the replacement of all lifters and the camshaft. The incident occurred at highway speeds on the interstate when the engine suddenly began knocking loudly. Immediately after the knocking started, the check engine light illuminated, followed by consecutive "Service Anti-Collision System" and "Service ESC (Electronic Stability Control)" warning messages.
Vehicle purchased new December 2026 and vehicle experienced loss of power and abnormal shifting while driving at only 9000 miles. Engine produced clicking noises and was immediately brought to the closest dealership. Vehicle has been out of service since May 8, 2026, with no repair completion date due to parts availability. Owner continues making payments and insurance payments while without use of the vehicle. Owner has not been given a comparable vehicle which is a huge hardship for the family, especially during farming season. Concern exists regarding ongoing reliability and reports of similar failures involving GM 6.2L engines.
Auto wash truck quit, dead would not restart, tow service disconnected battery and reset. Okay after. Visit to dealer service they said nothing wrong. Driving yesterday in the rain quit 4 times on the road driving, it would restart each time. Warning on the dash would flash at times "Hands on the wheel" while driving ? This is a serious safety issue. Intermittent when it gets wet, new truck, 1,800 miles, no alterations. Dealer service no help, it has hard codes, CAN Bus communication issue, water intrusion likely cause, we are afraid to operate on the road, help please.
The contact owns a 2026 Chevrolet Silverado 1500. The contact stated that while driving at 70 MPH, there was an abnormally loud pinging sound coming from the engine. The vehicle lost motive power, the brakes and the steering wheel became inoperable. The message "Depress Start" was displayed. The vehicle was towed to the local dealer, where it was initially diagnosed that the battery failure was unsoldered. The vehicle was repaired, but the failure recurred. While being test-driven by the mechanic, the vehicle stalled. After further investigation, it was determined that the engine needed to be replaced due to the main bearing failure. The manufacturer was notified of the failure, opened a case and informed the contact that a case worker, near his location, would contact him in 24 hours. The failure mileage was approximately 9,025.
I started the vehicle in the morning, and noticed a knocking noise from deep inside the engine. Took the vehicle to the dealership, the knocking be turned into squealing and grinding and banging, check engine light came on, and vehicle died in front of the service department door. I’m an experienced auto technician and know that that was a connecting rod bearing knock. And now need a new engine on a vehicle with 919 miles on it.
Purchased truck in May of 2026 from Chevy dealer. Truck had around 1500 miles on it. Within 1 week the truck was shifting, very roughly, for no apparent reason making it lurch. I brought it to a local Chevy dealer, who ran it, showing a fault. I got the truck back from the dealer, who said tech had looked at it, and cleared the "fault" that was showing up. less than 1 week after that, the truck started doing the same thing, and I am bringing it back to the local Chevy dealer this week. The dealer I purchased the truck from said it was a trade in because the owner didn't like the truck. I'm concerned the dealer I bought the truck from may have known about the problem when I purchased the truck, and this may be the 3rd time that the truck has been back to a Chevy dealer for this problem. I looked on line and found Chevy has has hundreds of thousands of recalls on this 6.2 liter L87 engine, and there is a class action suit involving this engine from previous years, as well as hundreds of complaints regarding the 2026 version of this engine.
Engine failed on 5/8/26 with 1794 miles. Sounds like possible main bearing failure, engine had 18psi oil pressure. Signs were, knocking, banging, screeching/squealing internally from engine. No codes or check engine lights appeared. Was driving approximately 35-40 MPH on mountainous paved road. Managed to limp truck to safe pull off area and turned off engine. Had truck towed to dealership. If truck would have died on road I was driving on, it could have been bad. Road is very narrow with numerous blind spots.
My vehicle has 3416 miles on it. I was at a stop light, busy intersection, and it just died. It would not restart or go into neutral to push it to the side of the road. I had it towed to the dealership, and found out theres a bulletin on these motors. [XXX] . Why would I buy something when its been a know issue with the manufacturer since 2025. I feel as if the manufacturer is selling these units and once this happens its the consumers loss. I cannot believe the manufacturer has not issued a recall. If that were too happens there would be a lot of lemon laws and there lawyers know not to go down that road. There fix is to give me a refurbished engine!! How can that be constitutional knowing there's been a problem with this engine and now my resale value just went down. If I knew what I know now I would of purchased used because thats what im getting in return which is consumer robbery. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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