The conventional wisdom here is GM requires the dealer to furnish a VIN number before the battery is shipped. How yours got to the top of the list is unknowable, but the dealer couldn't have chosen to put the one battery in any of the other five cars on the lot.Sorry if my message wasn't clear. The battery has been replaced. The dealership only received one battery for the six cars on the lot. Glad we were at the top of the list.