Our check engine light came on 12/17/24 for a oil pressure sensor issue. We promptly brought the truck to the shop where they changed out the sensor, completed an oil change and manually checked the oil pressure. They advised us that the truck was good to drive and there was no indications of any further issues on 12/20/24. 3 hours into our drive on 12/21/24 our engine sized going 80MPH with no warning at 64,000 miles. We got the truck towed to the closest GM dealer where they let us know that the engine had seized. We still have yet to get a clear answer as to what caused the engine to seize other than that it is a ‘known issue’. There were mentions of the lifters as well as storage issues by GM (i.e. their engines were stored in sheds where they may have gotten wet prior to install). GM offered a good will warranty at 60% coverage. They have ordered that engine but no timeline has been given (other than ‘months’ followed by a laugh) because they are on a nationwide backorder. They also have yet to give us any documentation of what occurred and what is being offered by GM even though it has been requested 5 different times. Seems that if you’re having a big enough problem to be on a backorder on the engine that this should be pushed to recall and we should be receiving 100% coverage.