2012 Mercedes-Benz GL450 Q&A

2012 Mercedes-Benz GL450 Question: engine locked during a drive.no sound from the engine

the car has 3045 miles never had an oil change,there is light on the dash but the engine will not turn.no diagnostic codes except on the radio when it happened,it said safe mode activated.a tech checked the starter and said it was ok,but the engine won't turn manually. -
Answer 1
take it to the dealer it should be still under warranty -