We just purchased a 2003 Z71 yesterday with 61K miles on it from a local dealership. In going through all the features on the DIC this evening, I came across the personal and business trip logs and was a little upset to see that the personal trip log was showing about 18K more miles than the odometer. There was another display (annual log I believe) that did coincide with the odometer. The dealership is closed for the evening already but plan to call them first thing in the morning for an explanation. The Carfax they provided me did not indicate any suspected odometer rollback. Has anyone run into this before and can shed some light on how the personal trip odometer could be higher than the vehicle's main odometer?