Had it happen once about one year ago I think and again earlier this week. Do not know the codes and do not see any commonality in conditions other than I was in a 45mph zone at the time. Both times pulled over, turned off, waited several seconds, and cranked back up. First time dealer said unless it is a frequent problem not to worry. Got that general response from other threads as well. I am headed there now for something else and will inquire again.