2025 Chevrolet Silverado 1500

My 2025 Chevy Silverado 1500 6.2L V8 experienced an internal engine failure at approximately 16,500 miles, requiring replacement of the entire long block under the factory powertrain warranty. The authorized Chevrolet dealership diagnosed internal cylinder wall scoring, and the engine could not be repaired. The failed engine should still be available for inspection if requested. About 4,000 miles after my last oil change, while the Oil Life Monitor still showed about 50% remaining, the vehicle repeatedly displayed "Engine Oil Level Low" warnings. I checked the oil level with the engine cold, and the dipstick showed the level was normal, so I believed the problem was a faulty oil level sensor. The next day, the warning changed to "Add Engine Oil," and I immediately took the truck to the dealership. The dealership confirmed the issue was not the sensor but internal engine damage caused by cylinder wall scoring, requiring replacement of the entire long block. Fortunately, the engine did not seize while I was driving, and no crash or injury occurred. However, before the failure was diagnosed, the only warning was repeated oil level messages that did not match the actual oil level. There were no abnormal engine noises, knocking, or noticeable loss of power. A driver could reasonably assume it was only a sensor issue and continue driving without realizing the engine had already suffered severe internal damage. If the engine failed while driving, it could create a serious safety hazard. Although GM replaced the engine under warranty, I remain concerned that a vehicle less than 16 months old with only 16,500 miles experienced such a major engine failure. I am also concerned that similar failures could occur after the factory powertrain warranty expires, leaving owners responsible for repairs that other Silverado owners have reported can cost approximately $13,000. I respectfully request that NHTSA investigate whether similar failures may also affect 2025 6.2L V8 model.

Date: June 22, 2026 Time of Incident: Approximately 11:48 a.m. Vehicle: 2025 Chevrolet Silverado High Country 6.2L V8 Current Mileage: Approximately 29,500 miles I am documenting the events surrounding the unexpected engine failure of my 2025 Chevrolet Silverado High Country. On June 22, 2026, at approximately 11:48 a.m., while driving at highway speed, the vehicle was operating normally with no warning lights, messages, or other indications of a problem. I began hearing a metallic clanking or knocking noise from the engine area. The noise progressively increased in volume and severity over approximately ten minutes as I reduced speed and looked for a safe location to pull over. My intention was to reach the dealership if possible; however, as I slowed to approximately 15 mph to make a turn, the noise stopped abruptly, the engine shut off, and the vehicle displayed a message instructing me to press the Start button again. The vehicle came to a complete stop at approximately 11:58 a.m. I attempted to restart the vehicle once, but it did not restart. No additional restart attempts have been made. There were no warning lights displayed prior to the engine shutting down, and there were no visible fluid leaks underneath the vehicle after it came to a stop. The vehicle received a routine oil change on June 16, 2026, approximately three days before this incident. I have retained the service receipt and all related documentation. The vehicle will be transported by flatbed tow truck to an authorized Chevrolet dealership for diagnosis and repair under warranty. This email is intended to document the incident timeline and details while they are fresh in my memory. I have not heard back from the dealer yet.

The engine check appeared on dashboard then engine did not start, Vehicle towed to dealership. Where they discovered a lift pin had broke. A new engine was ordered. Details on incident: I driving on I88 at 70 mile per hour when my vehicle when from 70 to 30 with engine check flashing running rough. After pulling off to side of the HWY, turn-off the engine and calling for help. I decided to try the engine again and it started after about 10 minutes with message "proceed with caution" so drove it to near Chevrolet dealership. Once arrived the Service Advisor saw the engine light and pulled two code. Nevertheless, They were not able find the source of the problem. I drove the vehicle home and two days later I drove the vehicle 20 miles and parked it at locate near me. When came out the vehicle would not start & was towed to the dealership. To some like what I written above is very damage situation

1st incident My son was driving the truck when all the emergency lights came on. He pulled over and the engine was on fire. He ran to a strangers house to get buckets of water not safe for my child at all. Come to find out that an engine rod slipped and put three holes through the engine causing oil to spill and a fire unbelievable! Lucky my son wasn’t injured. Chevy blames my son for that! Not acceptable! 2nd incident 1 month later my son calls and tells me when he started the truck it began making noise. He again got stuck with this truck because it lost complete power. Come to find out the transmission went. Chevy blamed my son again! Really come on! We have paid more for this truck than drive it. Now they are taking the warranty away. Please help. Thank you [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

All sound goes out on this truck intermittently. Maybe once every 3-4 days. I will have 0 sound, the safety feature sounds, the parking assistance, the directional signal sounds, the stereo. It is not Bluetooth or anything interfering I’ve shut my phone off to test. This happens with MANY people. Most people complain online about the stereo and directional sounds being completely muted, but forget to mention or don’t notice that the parking and collision assistance sounds are out as well. It took me a while to realize. I have video of it happening as well

2025 Chevrolet Silverado Crew Cab, VIN [XXX] , purchased new in April 2025. Total transaction value exceeded $50,000 including trade in of previous vehicle. Has experienced repeated serious electrical failures in under a year and 16,500 miles. Components that failed: Telematics module causing parasitic battery drain, DC/DC converter module, radio, and two complete battery failures. Turn signal was also triggering the high beams to flash, a separate electrical issue repaired under warranty. All components are available for inspection upon request. Safety risk: First battery failure occurred in January at 10,000 miles while traveling in the desert with my wife and infant son. We were stranded with no Chevrolet dealer accessible. Second battery failure occurred at 16,500 miles. A failed DC/DC converter module was discovered immediately after the latest round of repairs when the dashboard lit up with multiple warning lights and a check engine light the same day I picked up the vehicle. I drive this truck daily for work and transport my young child in it regularly. Repeated unexpected failures create a serious and ongoing safety risk. Confirmed by dealer: Yes. George Chevrolet confirmed and attempted repairs on the telematics module, DC/DC converter module, and radio. All failures documented on official repair orders. Warning lamps: Yes. Multiple warning lights and check engine light appeared immediately upon pickup after the most recent repairs. Manufacturer response: General Motors denied my repurchase request despite multiple confirmed warranty failures and has not offered a replacement vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2025 Chevrolet Silverado 1500. The contact stated that while driving the vehicle at approximately 40 MPH, every single warning light illuminated on the dashboard. Concurrently, the vehicle was unable to decelerate or brake, and the brakes became completely non-operational. The vehicle was towed to a dealer but has not been diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 21,800.

Hello, I purchased this truck new in November of 2025. Around 1500 miles and a few months later the truck developed what sounds like some sort of belt squeak or chirp upon startup, light acceleration and when the engine auto start/stops. I took it to my local dealer and they told me they “lubed the belt” the noise became faint but still didn’t go away. Around 3k miles the noise is back as loud as it was. Back to the dealer, a new serpentine belt the noise is again quieter but still exists. This needs to be addressed many people online are dealing with this and the dealer is giving us the run around trying to say it’s normal for a brand new $70,000 dollar truck to squeak and chirp!