Mazda 3: Inaccurate GPS

As a purchaser of a new Mazda 3 less than one year ago I expected the GPS system to be fully functional. It has not reliably worked on a continuous basis since taking delivery. The system can take 10 or more minutes to start tracking and even then most of the tome it shows the car as being up to several kilometres from where it actually is – sometimes not even on a road. It has been back to the dealer twice and the system software reloaded, but it is still not fixed. The dealer says they are waiting on further updated software due in 2017. Could you please find out from Mazda a more precise date when my system will finally be rectified?