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Old 11-20-2011, 06:37 PM
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2012 JK speedometer recalibration

I have installed 17 inch wheels/tires on my Sport model (which was built with 16s).

According to my GPS, the speedometer is understating speed by approx 5 mph at 60.

Have found no current information on how to go about recalibrating the speedo, which also should correct the stability control process, etc.

Can anybody help this old man?

Thanks in advance.
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Old 11-20-2011, 06:57 PM
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Re: 2012 JK speedometer recalibration

I use the AEV Procal module....it does multiple things including turning on daytime running lights and recalibrate the speedometer.
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Old 11-20-2011, 07:58 PM
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Re: 2012 JK speedometer recalibration

Thank you for input . . .

However, when I search for that unit, it does not seem to be available for the 2012 model.

Guess that I will call them tomorrow.

Do you know who manufactures that unit?

Thanks again,
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Old 11-20-2011, 08:02 PM
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American Expedition Vehicles manufactures the ProCal and it definitely works on 2012s.

Call my friend Travis at Airpark Jeep in Arizona and tell him Marcus at RCO sent you. They have the best deals on AEV.

Marcus
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Old 11-20-2011, 08:04 PM
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Re: 2012 JK speedometer recalibration

Thank you Gentlemen . . .

Very much appreciated. I will call tomorrow morning.
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Old 11-20-2011, 08:28 PM
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Re: 2012 JK speedometer recalibration

Any other Wrangler related questions you have...fire away!
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Old 11-23-2011, 03:01 PM
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Re: 2012 JK speedometer recalibration

Quote:
Originally Posted by RiverCityOffroad View Post
American Expedition Vehicles manufactures the ProCal and it definitely works on 2012s.

Call my friend Travis at Airpark Jeep in Arizona and tell him Marcus at RCO sent you. They have the best deals on AEV.

Marcus
Called Travis, as you suggested, and ordered the unit for my '12 Jk. Thanks very much.
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Old 12-19-2011, 10:08 PM
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Re: 2012 JK speedometer recalibration

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Originally Posted by baa baa View Post
Called Travis, as you suggested, and ordered the unit for my '12 Jk. Thanks very much.
~ how much did it run? I've done some reading on the unit and it does quite a lot for such a small module with just some switches.
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