Upgrade to sync 3.4 and 2021 maps

When using the navigation, it seems that the navigation reads faster than I am traveling. It will start in the correct place, but as I drive, the navigation shows me father ahead than I am. Is there a way to correct this. I have already done a mater reset and tried reloading the maps. Any help is greatly appteciated.

SYNC Region: NA

Navigation Variant: Nav

Manufacturer Year: Pre MY20

Install Type: Retrofit

Old SYNC Version: 3.0

New SYNC Version: 3.4

Do you have a error message, if so what is it?

Update Method: CyanLabs Syn3 Updater

Syn3 Updater Version: latest one

Syn3 Updater Documentation Read: yes

Syn3 Updater Log File


Do you have any NAV fault messages? Little red circle with a line thru it on the map screen?

Is this a retrofitted APIM from Sync 2? If so, Did you adjust the asbuilt vehicle data for the F350 data in the Sync 3 APIM?

I have no nav faults,iy is a sync3 apim manufactu3ws I’m 2019, no my20. It was suggested I change the wheel tic from 40ms to 20ms and see if that works. I am going to try to do that later tonight.

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