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by dcag14@verizon.net
Tue Jan 15, 2019 10:33 pm
Forum: Beta testing
Topic: Setting arbitrary tire sizes for speedometer calibration
Replies: 84
Views: 74316

Re: Setting arbitrary tire sizes for speedometer calibration

I have a 2015 Ford Fusion Titanium. Ever since I bought it there has been a 2 mph speedometer error compared to GPS - at 70 mph on GPS, speedometer reads 68. Used the spreadsheet calculator found elsewhere on this forum to change BCM 726-12-01 from xxx-0804-xx to xxx-07CB-xx. Test drove right away. ...