H.J.
It is totally a scam. I have so many friends and family who have been getting the calls, including my 17 year old sister on her cell phone, who does not even own a car. My dad decided to press 1 to get them on the line and they started asking him all these personal questions inclding the VIN of his car, and he said that if they knew that his warrenty was up, shouldn't they already have this information, and they IMMEDIATELY asked if he wanted to be taken off their call list.
Stay away!!!