Speedometer calibration 2017 sierra

[imcodi]

What has been proven to work for this? I had a hypertech speedometer calibrator that worked with my 2014 sierra but it won't work on the 2017.

 

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[O_J_Simpson]

Warranty tends to work really well.

[newdude]

GM does not recalibrate speedo unless its a factory tire size.

[Justin101714]

GM does not recalibrate speedo unless its a factory tire size.

+1

 

They won't even have a calibration to give to correct it.

 

 

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[imcodi]

Is there a tuner that works though?

 

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Warranty tends to work really well.

Iv got aftermarket tires so I doubt they will help me out at the dealer

 

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