When this happens , the only thing to do is, send it back to the factory , and have the warranty ready with your book that came with it , there is a 1800-no. to call to send to the company,cause like a computer, that needs the program to work right, now it need to be reinstalled,i recomend never installing the navigation dic on here, it causes probs , and i learned it the hard way...the only way to get it fix is by retruning it to the company with your warranty. oh and if you don't have it this there no.-18003234815 for repair, they will let you know how much to fix and where to send it..good luck.