Hi BBF2530, thanks for responding. The tire pressure seems fine. The alarm was not for low tire pressure but for "sensor fault". I called the salesman who sold it to me, and he said he has heard of this. The service dept is closed today (Sunday). I am bringing it in tomorrow morning. I am guessing that either a sensor in a tire failed or it is the main system. Either way, a brand new vehicle shouldn't have a system fail after you have it for 5 hours. I mean, I am in the shop with it 2 days after I bought it. I love my new Edge and did a lot of research before buying. This is a bit of a disappointment.