I have a 2012 GMC Terrain and the check engine light came on. I brought the vehicle to the dealer and they said the Timing Chain needed to be replaced. 1800.00. I asked if it had anything to do with Engine Oil Consumption Recall. They advised no absolutely not. Got it fixed myself. Took it back for oil consumption test. Failed test. Was burning more than 1 quart of oil less than 1,000 miles. Then told me needed to replace Pistons, rings,gaskets, and yes Timing Chain. Week later engine blew a seal and oil sprayed everywhere imaginable in engine compartment. Got that fixed. 1 week later total transmission failure. Car is undrivable.