It's not tires/wheels. They are brand new. The dealership I bought the truck from specializes in lifted/custom trucks. they do lifts/tires/rims in house. They have sold several hundred trucks (gm, ford, chevy, dodge, etc) that they have in house customized and have said the only other truck they have seen with this issue before was a ford. they calibrated that particular truck to compensate for the tires/wheels and the problem stopped. Mine hasn't. I haven't had any issue while making any turns at intersections. Only going around sharp curves in the road. My speed has varied from 15 to 25mph when the problem has happened. Truck stays in 2wd mode and not auto. I have pushed the traction control button on the dash to "disable" it to see if the problem would stop. With traction control turned off the truck will still have the problem while going around curves. If I go around 5 sharp curves, the truck will show the problem 3 times. Pretty annoying. I'm thinking the problem is linked somehow to the suspension lift and wouldn't necessarily involve the previous owner. Also, the truck is a 2011 model with only 15,000 miles. This dealership is by no means a fly by night operation and I am not bashing them at all. They sell tons of top quality products every year and do an amazing job at the customization they do on their trucks. I am just wondering if this one is a lemon.