This is the 2nd issue with my 2013 Avalanche, just turned 31,000 miles from new, looking at my tires today after cleaning the truck and noticed all four tires are wearing at the inside tread down to 3/32, the outside tread is at 5/32 and the center is at 8/32. I have always rotated the tires at 5,000 miles, and have always kept the air pressure at 35 - 37 psi. The tires are the stock 275/55/20 in Bridgestone Dueler H/L. Truck has always driven straight without veering left or right. So I call my dealer today only to hear the so called "bumper to bumper" doesn't cover misalignment, & that , like the paint warranty is only for the first 12 mo or 12K miles. So off to the alignment shop this week.....anyone else seeing this issue with their 20 size tires on their Avalanche?