My truck has a build date of september of 03- Does my 3 year bumper to bumper warrany expire on 9/1/06, or on the last day of september 2006? I just rolled 17,000 miles, fyi. Nothing that needs to be looked at, but just curious. I, stupidly, did purchase the extended, 5 year 85k mile warranty last year when I bought it. Little did I realize that I'd get the bombing bug so soon. .