Gear Upgrade; Limp Mode

BillTheCat said:

So, months ago I began reading this Write-Up over and over. http://wayalife.com/content.php?225-Do-Yourself-a-Favor-Regear-Your-2012-Up-JK!!

2013 JKRU-Automatic
3.73 -> 5.38 Gears

Came home in Limp Mode. Apparently this is a known problem but as usual, I'm a day late. Any links to this problem or write-ups? My searches are not coming up with resolutions.

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JJK said:

Looks like you have a tuner already, so all you need to do is adjust your gear ratio. It's probably throwing a transmission code about gear ratio not expected... Or something to that extent. Clear it and adjust your ratio. Easy two minute fix.

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