You are not having a problem with your
radio at all. You (or someone else---sounds like maybe the dealer in this case) have your
radio set to automatically tune to traffic reports. I have my
radio set to do this and I think it's one of the neatest features of the
radio. The RDS system in the
radio will (when programmed to do so)
search for any
radio station in your area that broadcasts regular news reports. In your area it just happens to be an AM station that does this. In my area it's an FM station. The
radio will stop whatever it's doing (even if it's playing a
CD) and tune to the channel just as a traffic report is about to come on. If you leave it alone and listen to the traffic report, the
radio will then automatically go back to whatever it was doing beforehand. I love that feature---I never miss a traffic report!
I don't exactly remember right now how to program the
radio to do this or how to turn the feature off---but it's not hard---a series of buttons on the
radio you have to push as a function of the RDS system--it's all outlined in your
owner's manual--that's where I learned how to use it. Enjoy!