Sudden Engine failure, metal shavings found in oil at 16K miles. GM and the dealer acknowledges that the 6.2L motor has been having issues. They state that they are currently investigating but a ‘fix’ of the issue has NOT been made. The motor was replaced under warranty, however, the engine they replaced it with has the same chance of failing as the original engine. There was no warning, no indications prior the the motor seizing up at a red light