2023 Chevrolet Silverado 1500

The adaptive cruse control will apply the brakes driving, it happens when driving and there is nothing in my lane as far as the eye can see. Sometimes the Silverado will go from 70 mph to 30-40 or less and back to 70. Most of the time it will apply the brakes for a sec and then off. One time it locked up the brakes from the low 60 ish MPH to almost stoped before I could get control. Every time this happens there is no cars, or abstractions in my lane. I have had the Silverado into 2 dealers for this problem about 25 times and they can not fix the problem and I have been told that they are done working on it and they can not find the problem and I will have to live with it. I don't fell safe driving it and have told that to them. I have asked many time to have a GM Engineer look at my Silverado and find the problem and they did nothing to resolve the problem. I need to a get this problem addressed before I cause an accident or am in one. I also have many other problems that they cannot resolve, The Blind spot mirrors light will go off all the time with nothing there or a car will pass on the left side and both the left and right mirror lights will go off. The Bluetooth will disconnect from the Silverado and the person I am talking to can hear me just fine and the call is no longer over the speakers in the Silverado it is on the ear piece of my phone and then will go back to the speakers on the Silverado. I will get an alarm that says "Take Wheel" with hands at 10 and 2 on steering wheel looking straight ahead. Get an alarm that have trailer light problem and will turn on blinker and it will flash quickly for 10 seconds and then is normal. Radio skips on FM, AM, XM, MP3 Player at times. The Silverado has spent over 4 months and 25 times at a dealer since I bought it new and they have nor been able to resolve any of the problems and I have been told by GM that they are done working on this truck and they can not find the problems. Thank You

RE: FORMAL COMPLAINT–RECALL FRAUD & VIN TAMPERING SUBJECT: Falsified Recall N252494000 & 18 U.S.C. § 511 Violations VEHICLE: 2023 Chevy Silverado (VIN: [XXX] ) INCIDENT: March 7, 2026 FROM: [XXX] | [XXX] I am reporting severe Federal Recall Fraud and VIN tampering by Kunes Auto Group (WI). GM records and physical evidence prove Kunes falsified Safety Recall N252494000 (L87 Loss of Propulsion) and sold an illegally rebuilt wreck with mismatched VINs. 1. Falsified Recall: On 4/9/2024, Kunes logged a PicoScope Inspection marking the recall "Passed" (Trans #XX-XXX). The NHTSA remedy requires installing a 0W-40 oil cap/flush. When the engine seized on 3/7/2026, it still had the factory 0W-20 cap. Kunes billed GM for a safety remedy never performed. 2. Concealed Defects: Despite the "Closed" recall, the truck exhibited L87 defect symptoms. I brought it to Kunes three times (Oct 2025 - Feb 2026). They dismissed the warnings and released the truck as safe. 3. VIN Fraud (18 U.S.C. § 511): The 2023 truck has 2025-stamped frame/axle parts. Holz Motors (authorized GM) blacklisted it on 3/6/2026 (RO #1583470), stating in writing: "DUE TO... MISMATCHED VINS DOOR TO DASH, SALVAGED REAR AXLE... HOLZ WILL NOT BRING THIS TRUCK IN." 4. Highway Failure: On 3/7/2026, the L87 motor suffered total Loss of Propulsion at 70 MPH in traffic. The sudden loss of power steering/braking nearly caused a multi-vehicle fatality. REQUESTED ACTION: 1. Audit Kunes’s PicoScope data for the 4/9/2024 transaction. 2. Investigate remedy fraud (missing 0W-40 cap). 3. Investigate tampered/mismatched VINs and off-the-books rebuild. 4. Sanction dealer for fraudulent safety certifications. I declare under penalty of perjury these statements are true. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2023 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. There was no warning light illuminated. The vehicle was towed to the dealer, where it was diagnosed and it was determined that the engine had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 41,100.

This truck has a 6.2 engine that was recalled, inspected, and made the switch to the new oil, but then failed. I believe you already have a recall query rq26001 related to this matter. I received the recall notice July 2025, took the vehicle to Covert Bee Cave in Austin, TX July 2025. They told me it passed inspection and put the new oil cap on. Within two weeks I began having transmission issues. I left the truck with them for three weeks and they could not do anything about the transmission. The transmission issue did not reappear until a couple of weeks ago. I took it to Capitol Chevrolet and they replaced a shifter rod in the transmission, but I am not convinced that was the issue as it still shifted rough. Just a couple of days later, before I could take it back to have Capitol look at the transmission, and while driving on an Interstate south of San Antonio, TX, the engine slowed down, flashed a warning "Oil Pressure Low Turn Vehicle Off" and it continued to slow. I was barely able to exit the Interstate, the truck stopped and would not restart. I had it towed to Vara Chevrolet in San Antonio ($440 tow expense) and it still would not start. The technician finally inspected it a few days later, said the engine is seized, and they will need to replace the entire engine, and that it is covered under warranty (there was plenty of oil in my engine). He did not say anything about the transmission. I believe this is an example of my vehicle passing the recall inspection, changing to the new oil, and the engine still failing - and at a very dangerous time on the interstate.

What component or system failed or malfunctioned, and is it available for inspection upon request? Glass sunroof blew outwards driving 60mph on the highway. No other vehicles were around and I did not see anything impact the vehicle. The glass was broken outwards and created an 8” by 8” hole in the sunroof glass. There was no extreme temperature differential, approx. 55 degrees outside. It has been repaired and not available for inspection. How was your safety or the safety of others put at risk? It sounded like a gunshot inside the truck, causing extreme distraction at highway speeds. Luckily the interior shade was closed and caught the glass, but if it was open all of the glass would have fallen on the passengers. Has the problem been reproduced or confirmed by a dealer or independent service center? No the dealership did not consider it a manufacturing defect. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Insurance inspected the vehicle and it was covered under a glass claim. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No indication prior to the incident at all. It happened out of nowhere.

Purchased 2023 Chevrolet Silverado ZR2 with 6.2 L engine in November 2025 with 3400 miles on it. According to the dealership the engine passed the recall on 09/25. At 6,500 miles the check engine light, ESC light, stability control light came on. Engine was running rough, degradation of engine power, and very rough transmission shifting. Vehicle was taken back to purchasing dealership and was told the lifters and rods will have to be replaced.

My onstar telematics system has failed. I lost all connectivity with onstar and have no vehicle crash detection, communication and onstar based safety feature available anymore. I took the truck to the dealership and they identified the telematics module as faulty and needs replaced. The onstar system buttons are off and will not turn back one and have been off since 2/18/26.

The contact owns a 2023 Chevrolet Silverado 1500. The contact stated that the tailgate lowered unexpectedly while driving at various speeds, and occasionally closed unintendedly. The failure also occurred while the vehicle was parked and turned off. The vehicle was taken to the dealer, and the failure was demonstrated. The tailgate switch was replaced. The contact became aware of a Canadian Recall, ID Number: N232426400, for the tailgate failure. The manufacturer was made aware of the failure; however, no repair was performed. The failure mileage was approximately 60,000.