I have a 2015 F-150 Scab, 5.0L, that I purchased on 31 July 2015. One of the issues that I have with it is the Speedometer is not properly calibrated. When I am driving on I-75, and I am doing 75 MPH, as indicated by the digital speedometer, the analog speedometer, is indicating 76 MPH. My stand alone Garmin GPS also indicates 76 MPH. When I set my Cruise Control on 75 MPH using the Analog Speedometer, the Digital Speedometer, indicates 74 MPH, and my Garmin indicates 75 MPH. Is anyone else experiencing the same issue?

 

Just guessing here. Digital speedometers round...

 

I dont have this issue, I haven't checked my GPS speed but both the speeds on my gauge cluster match. Both of them are electronic and I wouldn't think that Ford would have them separated as far as calibration or where they get the signal from. I could be wrong. Give a shout to a Service Dept and keep us posted!

 

Not enough to get excited about.

 

Within factory margin of error.

Think about this, if you calibrate your speedometer to be exactly correct, then your tires wear down your speedometer will be off again. Don't worry about it