About a week after getting my 5.0, I got the same message when I went over a set of railroad tracks. My office is just over the tracks, so I pulled into the lot, parked, and shut everything down. Then I restarted, hoping something would reset. It did not. At the end of the day, headed home, it finally did reset itself after about driving about a mile. 10,500 miles later and it has never reoccurred.