re: Grinding/groaning noise turning left in a 2011 Tahoe: Failing wheel bearing?

Sounds like a bearing to me. Had the same problem on our Town & Country van. Replaced the whole assembly and that fixed the problem. That was the good news. After replacing the hub assembly on both sides with my own money, I found out that the hub assemblies had been recalled and were being replaced free of charge at the dealer with factory parts. I was out several hundred dollars of my own money. That was the bad news. Check to see if your bearing/hub assemblies have been recalled before you replace them yourself.