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Navigation "Drift" driving on interstates / 2014 MKZ

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Hello All,


I have a 2014 MKZ 3.7 AWD with all options (tech package, park assist, pano roof etc).


The cursor, which is the car location, has a tendency to drift while driving on interstates so it tracks to the right or left of the highway. If I am travelling to a set destination, this causes all sorts of annoying direction updates as the systems shows the car on whatever street it can "latch" onto and attempts to redirect it to the hiway. It also causes the   "TAKE A REST" warning to come on quite frequently as I Drive through lakes and ponds on the nav screen......


Used to always drift to the right of the road I was travelling on, Dealer did a "synch update with IDS", as an update was available. Dealer advised that there were no error codes in the system prior to updating.


Since the update, the drift has gotten worse and the vehicle now is almost constantly "tracking" off of the road I am actually on. This only happens on the interstates. No issues when driving around city streets, etc.


Any ideas as to what could be going on here? I'm bring the car back to have them take another look. I hope it's just a corrupted update as opposed to any issues with the GPS antenna module, etc.....


I do have a 6 year 120K mile extended warranty that will cover any issues with a $100 deductible after the 4yr 50K bumper to bumper expires - which is soon as the car just hit 49K.....

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When was your car built?  There was a TSB for this.  Did your dealer just update Sync or recalibrate the GPS module?


TSB 14-0037


Publication Date: February 21, 2014

FORD: 2013 Fiesta, 2013-2014: C-MAX, Focus, Fusion, Mustang, Taurus
LINCOLN: 2013-2014 MKS, MKZ
FORD: 2013-2014 E-Series, Edge, Escape, Expedition, Explorer, F-Super Duty, Flex
LINCOLN: 2013-2014 MKT, MKX, Navigator


Some 2013-2014 vehicles equipped with SYNC® and/or MyFord Touch®, MyLincoln Touch® and built on or before 1/6/2014 may exhibit navigation display offset or incorrect position. The last known vehicle location may be displayed instead of current location, or the vehicle location may be displayed as off road from the current vehicle position.


Reprogram the GPSM to the latest calibration using IDS release 89.02 or higher. Calibration files may also be obtained at www.motorcraft.com.

140037A Reprogram The GPSM Following The Service Procedure (Do Not Use With Any Other Labor Operations) 0.3 Hr.


Eligible Under Provisions Of New Vehicle Limited Warranty Coverage.
Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.



Edited by drolds1

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Hi Dr. Olds,


Date of manufacture is Jan 2014. First date of in service is Sept 2014. It was a dealer demo for 8 months.


My paperwork only shows the SYnc update, there was no GPS recalibration done.


I will contact dealer today.



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Had the GPS Module update done at the dealer today. Problem resolved!

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Glad to hear that it's corrected.  Thanks for updating us.

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