Yellow engine light came on and a low oil level warning came on. There was 1 quart left in the oil pan. I took it to a Tires Plus and they found that the oil cooler line was leaking and they added 6 quarts to it and called a tow truck to have it towed to the dealer. It was Sunday so I will have to wait till Monday to get it fixed. Should be covered under standard warranty. It couldn't have happened at a worse time since I had errands to do. A truck with 7000 miles shouldn't have these problems and the fact that GM knew of the problem ticks me off even more.