Search didn't show any previous posts for this. There were some (one?) about the key getting stuck in the switch. The problem first started around a month ago. Just a slight hangup as the key was turned, very infrequently. Rock it back, then try again and it would work. Earlier this week, I had major trouble, with it taking a couple minutes to get the key to finally turn. Tried rocking the steering wheel back and forth and making sure the shift lever was all the way in park. Then tried pulling the rubber plug below the switch and inserting another key, no luck there, either. When I called the dealership for an appointment, they suggested switching keys with my wife to see if it was a key problem. It appears not, as I had another couple minute "fiddle with the key" episode today. Working with the dealership to arrange a loaner because it will probably have to stay over night. My first real problem with my Traverse.