Hello we have a 2008 Jeep liberty and it has a mopar RER nav kit in it. Today we started our vacation and it has stopped working correctly. It will show you maps, but it is not plotting routes for you. Yeah it was working fine till we got to sacramento CA, since then it won't route anything. It also is not giving us the Latitude and Longitude where we are. Everytime i put in a address t owhere we are going, It kept saying destination cannot be mapped, even though the destination is a big city such as seattle. Could it be the mountains? This is driving us crazy and we still have to drive to canada. Any one have any ideas? Thanks in advance, appreciate it!