Nav GPS TSB 13-3-11 - Fix for unable to locate vehicle, etc There is a Technical Service Bulletin that came out today for those of us whose Nav systems are having a hard time tracking where the vehicle is. Typically your car is shown as off the road or on the next block over, etc. This fix applies to cars built on 1/15/2013 and before. It involves a recalibration, apparently. Thanks to use ceemax71 for finding this