Hello,
When I start my Aviator, I get a beep and a message in the message center of "Advancetrac On." I was wondering if this is normal. The dealer cannot verify for me. They replaced the instrument cluster and got rid of the "Check Advancetrac" message when I turn off the car. Any info is appreciated. Thanks.

Well, this might not be helpful, but I've never experienced that with my 03' Navigator. Maybe it has something to do with your stability and steering, because advancetrac is a traction control system, I think.