Thank you so much for the info! Bells started going off when I saw the mention of locked steering wheel because both times we had tire damage, we found the steering locked. While we were out getting the new tires, we stopped by a Chevy dealer and had him show us what he thought was the proper ACC position. They had not had complaints of this type of damage before. All the ideas are great. My husband, Don usually drives the RV, so I will hang back at takeoff and make sure the HHR wheels are moving properly. Thanks again!