Engine locked up at 10,000 miles

On 05/01/26 while driving on New York State Thruway route 90 east, my check engine light came on. Almost simultaneously the vehicle began to lose speed and I could not accelerate. As I pulled over I could hear a loud clunky noise. The vehicle would not start and was dead on the side of the thruway. Eventually the vehicle was towed to the dealership I purchased it from where they told me "there is a loose part in the engine and the engine needs to be replaced". Sudden power loss of the vehicle represents a safety risk especially traveling at 65mph. To my knowledge the vehicle has been inspected by only the dealership. On 3/17/26 I alerted the dealership I purchased the vehicle from that I heard a ticking in the engine once in a while when I auto started the vehicle. I was told I would receive a call from servicing but never did.

Well traveling motor started making a slight ticking noise, about a mile down the road started squealing like a belt issue, pulled over on the side of the road popped hood and heard the squeal better before it shut down. There was no check engine light or any indication there was an issue prior to this happening.

The contact owns a 2026 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, the engine seized. No warning lights were illuminated. The contact stated that while attempting to restart the vehicle, the vehicle failed to start. The vehicle was towed to the dealer, where it was diagnosed with engine and radiator failure. The contact was informed that the engine and the radiator needed to be replaced. The vehicle was not repaired. The contact was informed that the repair was under warranty, but the parts were unavailable. The contact stated that the failure had occurred three months after purchasing the vehicle. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 3,900.

I am writing to formally file a safety complaint regarding a catastrophic engine failure in my 2026 Chevrolet Tahoe equipped with a 6.2L engine. The vehicle had approximately 9,640 miles at the time of failure. On March 21, 2026, while driving on a highway, the engine failed suddenly and without warning, creating an unsafe and potentially dangerous situation. The vehicle lost power and had to be towed from the highway to Colussy Chevrolet for inspection and repair. On March 22, 2026, the dealership confirmed that the engine required full replacement and stated that a new engine had been ordered, with an expected arrival date of March 30. I specifically requested that a new engine be installed, given the extremely low mileage and severity of the failure. Approximately one week later, I followed up and was told the engine was still scheduled to arrive on March 30. However, on March 30, I was informed that the order status had changed to “under evaluation,” and the Service Manager indicated that the replacement engine would likely be a remanufactured unit instead of a new one. On April 1, 2026, I contacted General Motors Customer Support to escalate the issue and reiterated my request for a new engine, as well as requested a loaner vehicle due to the loss of use of my vehicle. A representative opened Case #92297395 and advised that the issue had been referred to the Parts Delay Department, with a promised follow-up within 24 hours. On April 2, 2026, the dealership informed me there was no change in status and that while they intended to provide a loaner vehicle, none were available. As of April 6, 2026, I have not received a loaner vehicle or any follow-up regarding availability. On April 6, 2026, I received a call from a General Motors Customer Assistance representative stating that there are ongoing delays related to both the engine and radiator, with no estimated timeline for repair completion.