2024 Chevrolet Silverado 1500

Jan 1 issues of knocking and loss of power occurred at 2100 miles; took the the dealership and it was determined that there was a collapsed lifter and 4 of the 8 were replaced. Mar 11 truck experienced loss of power and an a message to "press start again" was able to pull over and turn truck off and it would not start again; this occurred at 5,276 miles. Towed to dealership and it was determined that engine was seized and that it would require a complete engine replacement.

Dear National Highway Traffic Safety Administration, I am writing to formally report a serious safety issue with my 2024 GMC Sierra 1500 equipped with the 6.2-liter engine. At the time of the incident, my truck had only 17,000 miles on it and had received the two necessary oil changes as recommended. On Thursday, [XXX] while driving northbound on [XXX] in Houston, Texas, my truck unexpectedly lost power while in motion. Fortunately, I was in one of the right lanes and was able to push it to the side, but not before nearly being struck by another vehicle. Several cars had to swerve to avoid my disabled truck, and I truly believe that I could have been seriously injured or worse due to this mechanical failure. After having my truck towed to the dealership, I was informed that the engine had completely locked up and needed a full replacement. However, despite my immediate action to get the issue resolved, I have now been without a vehicle since [XXX], and as of today, March 10, 2025, there is still no replacement engine available. I have been told that the 6.2-liter engines are on backorder for 5 to 6 months because this issue is happening to so many vehicles. This raises serious concerns: If so many of these engines are failing, why has there been no recall issued? How is it acceptable for GMC to sell vehicles with a known defect that can lead to life-threatening situations on the road? Why am I still paying a $1,300 monthly car note for a vehicle I have not been able to drive in over three months? This is not just a case of vehicle reliability; this is a severe safety hazard. My truck failed suddenly in moving traffic, and based on the widespread engine failures, it appears that this could happen to many other drivers as well, potentially leading to catastrophic accidents. I urge the NHTSA to investigate these engine failures immediately and take appropriate action, including issuing a recall if warranted. I would appreciate an update on INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA)

I was driving on [XXX] leaving from Onawa, IA. Up to this point I had not issue or notifications about my vehicle. While driving North bout and having the adaptive cruise control set at 80 MPH, I was in the left lane passing 3 semis in the right lane. After passing the first one, the first semi merged to the left lane following. I was approximately 1/2 passed the next semi when all the sudden my cruise started to slow down. It went from 80 to 78 back to 80, then 80 back to 77 to 80. Suddenly and with no warning the engine completely shut down and I went from 80 - 0 is approx. 100 feet. The semi behind me sounded their horn loudly as they almost hit my rear end before merging over. I had no time to go over to the right shoulder and had to go to the left where the vehicle would not move. I could not move the vehicle off the shoulder as it would not shift to natural. Law enforcement was notified as the safety of the vehicle on the left side of the interstate caused safety issues. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Vehicle has left me stranded multiple times, once over 2000 miles from home at only 26k miles on the vehicle with catastrophic engine emissions and electrical failures. Costing me thousands in lodging and months of my time. My vehicle has stalled multiple times on interstates and busy roads with no shoulders putting me and other drivers at risk.

Motor blew in my 2024 Chevy Silverado. Motor was a 6.2 liter, L87 with 17,600 miles. Tomorrow will be 4 weeks without my vehicle. I've gotten no information on when any repairs will be made, nor have I gotten any support from the dealership or GM. I was driving 60+ mph in heavy traffic when the motor went. I was put in a bad situation and was lucky to get out of it without injury. I don't know what to do and need help!

Hi - I'm filing a complaint against Chevrolet with the NHTSA's Office of Defects Investigation. I purchased a brand new 2024 Chevrolet Silverado in Dec of 2024 from a dealership in MA. I've had the truck for only 2 months and only a couple thousand miles. I was in Quebec with my family for a ski vacation and we were driving back on [XXX} when my truck suddenly started making loud engine noises. I was able to get off the interstate to a gas station and then the truck turned off and would not start again. I had the truck towed to a Chevrolet dealership in Granby, Quebec. There was no warning or alerts before the engine failed. This is a known issue that the NHTSA is currently investigating, it has to do with the 6.2L V8 engine in GM vehicles from 2019-2024. The engine is seized and cannot be repaired, truck needs a new engine. Thank you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Date of purchase [XXX]. Date of incident [XXX]. I was on my way to work at [XXX] and it was raining . Truck would not accelerate more than 45 miles an hour speed limit is 65 on the freeway. Engine light turned on and all the dashboard icons turned on. Drove it to the nearest dealership Tom Bell Chevrolet in Redlands Ca. Once I put vehicle in park it would not start. The message on the dashboard board displayed something like unable to access. So I went to see if service center open since it was [XXX]. He instructed me to drive around I said it will be not go into motion. After 15 minutes I checked the status on my phone and it did not display anything wrong so I went ahead and turned it on and drove it to the service center but once again it would not accelerate and shock vigorously. Once in the service line it turned off and did not stay on. Dealership ran diagnostics he mentioned cylinder and piston but they need to run more test. He called me back 2/14/25 asked if I had taken it to the dealership where I bought since purchased I said no it’s brand new, it looks tampered with . Called me back again and said this vehicle had a motor recall and a technician at Riverside Chevy worked on it and all the components are not connected we can work on it it need to go back to them and they need to explain what is wrong. He sent them a video of the tech looking at everything that was wrong. Truck was towed to Riverside Chevrolet [XXX]. This is a brand new vehicle that only had 17 miles when purchased by me ,at the moment it has 709 miles non of the components of this vehicle are new anymore they are either melted or rattling inside ,the gas tank sounded like empty cans rolling around, the transmission would not make the vehicle move. It is called lean mode if I’m being correct the vehicle was protecting it self from what I don’t know, so yes I feel it is unsafe and would like your help with this vehicle matter at your earliest possible conve INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5

Engine check light came on at 10,500 miles and under 300 hours of engine time. Initially thought it was due to a wheel speed sensor failure from the salt and brine build up from winter weather. After having the code ran the engine is misfiring and has a rough idle. This is an L87 6.2L motor on a 2024 Silverado ZR2. After researching this problem it is way more frequent than the total of 39 official reports with a similar truck owned by an acquaintance having the same issue at the same mileage. Engine sound has changed, the truck shudders, and may seize up at any moment. The truck had 1 oil change at 5500 miles and was due for its second oil change at 11500 but will more than likely need an engine replacement.