One problem related to engine failure has been reported for the 2011 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 GMC Yukon based on all problems reported for the 2011 Yukon.
My 5th cylinder exploded. I had a p0305 code for 5th cylinder misfire, took into the dealership and they replaced the coil pack on that cylinder on 10/20/2020 and 01/17/2021 the 5th cylinder exploded cause chunks of metal to be thrown through the side and cause a catastrophic engine failure. It was stationary in a parking lot but I was just about to put the car in reverse to drive when I hear a noise and shut the car off. Upon further research there is currently a class action lawsuit against the gm for the high failure rate of 2010-2014 years for vehicles that used the 5. 3liter engines; the 6. 2 liter engine, the one in my vehicle, was manufactured in the same plant as the 5. 3 liter. Gm failed to disclose to the public of the known defect to the engines.