Calibrate speedometer on 2006 Jeep

[akdsmer]

Gene's did my Dodge for free. Of course, the change was (way) off and I had to give them the rev/mile to get it corrected. Get the rev/mile from your tire supplier and give them that. If Gene's wants to charge you, you are better off with a reprogrammer, if it's available. For my 04 WJ, I could not correct via the scan tool and was told I would have to use an electronic module to correct the ratio.