It is work for a rainy day and in my part of the country Washington State, there will be plenty of rainy days soon and yes it has the nav system which by the way when I went to pick up the car they didn't have the nav disk said it was on order. Imagine that, the dealer has had the car all year and no nav disks. I told them to simply to to another car in their inventory and get a disk and they said none of the cars they have had disks. Dealers, what a joke. GM might as well sell these things through Kmart, Walmart, or Target. The service is the same.
