Odometer error message

Hi, I have a 2002 Buick Rendezvous and I am getting an odometor error message. Where the odometer usually reads the mileage, now it just reads "error" . This has just happened in the last day or two. Can anyone help out?

Thanks
Mike

disconect battery for 5 min. then reconect. computer will recalibrete, at least its suposed to. if not there is a place that does repairs.

http://www.carradio.com/