The GPS location or vehicle direction indicated on the navigation map does not match the actual vehicle's location or actual direction of travel. The condition can happen sporadically or consistently. The condition does not happen during or immediately following the initial PDI inspection (once the vehicle has been taken out of transport mode). It is normal for the satellite reception to be 0 immediately after taking the vehicle out of transport mode. With the ignition off, the vehicle must sit in open sky view for 10-15 minutes before a GPS fix can be obtained. The vehicle is a Model Year 2013. The MMI navigation unit uses internal sensors in the main unit and vehicle sensor data to determine the direction and movement of the vehicle. The GPS system provides supplementary position data upon vehicle start-up, when the vehicle has been off for less than four hours. If the vehicle has been off for more than four hours, a more accurate GPS 3D fix is required, as the previous GPS data is not used and has been thrown out. The GPS 3D fix is obtained when the system acquires four or more satellites. In areas with limited sky view or with tall obstructions, the system can take an extended amount of time to acquire four satellites, or may not be able to acquire the satellites at all until the vehicle is driven into an open sky view area.
