GMC SLE 2012 Used Automatic Gasoline mileage: 258 KM 4WD Peace, mercy, and blessings of God be upon you. For sale.. GMC Terrain 2012 car. Automatic transmission. 6 cylinders .. 3.6 liter. SLE trim. Registration is valid. The inspection expired exactly 8 days ago. The gearbox is sound. The airbags are sound. Electricity and electronics are sound. The car needs an engine, and the reason is that the oil pan is broken. All other matters in the car are sound.