Brake lines. They like to rust out, the controls for the the Hvac panels likes to quit working as well as the blower motor. All pretty cheap fixs if you can do them yourself I got mine for 675 bucks because it had bad brake lines. Has 234k on it now and still runs strong. And if you ever did decided to tow with it they tow great. I've pulled around my old 2012 mustang with it and my old 65 with it though 5 inches of snow. I've always been a ford guy but I do like my Yukon a lot. Been a great "beater" to me. Cargo space is nice. I've had a few complete engines ect in the back of it with the seats outs.
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