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Can you adjust the speedometer for the larger tire size?

doolin64

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Just wondering if there is a calibrator to adjust the speedometer correctly for oversized tires.
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Swegner99

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I have been watching for this, I haven't seen an aftermarket calibrator yet but you can update the tire circumference with Forscan and it will accomplish the same thing.
 

Rapid Red

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Do I have to take it to the dealership for this? Wanting to put 18” on stock is the little 245x17” it’s a 2 1/2” difference.
 

GeauxKing

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My dealership did it when they installed the tires.
 

Los150

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You can make the changes using FORScan, from what I've read.
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