From what I have heard, the dealership cannot change the tire size larger than 30” or so because the larger options do not appear on the list on the device they use. Hypertech used to offer a tire size option with their Max Energy tuner but it caused the traction control to malfunction so they eliminated it. So as far as I know, there is no dealer or aftermarket option to change the programmed tire size on a Liberty.
That said, others have had varying luck having the dealer or a good alignment shop reset the steering angle sensor (SAS). Sometimes this appears to eliminate the traction control engagement around corners. Other times it didn’t do anything. Here are a couple of informative threads about what’s known about traction control issues on lifted KK’s:
ESP Activation with Lift - tjkj2002 -
viewtopic.php?f=88&t=50913ESP Activation with Lift - Jeepin_it_real & Scar0 -
viewtopic.php?f=88&t=64725
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2008 Liberty Sport 4x4 Automatic
Jeepin By Al 4" Lift Kit
BFG KO2’s 245/75R16
Full MOPAR skid plates
Rock Lizard Skink Super Sliders
AtTheHelm Front Recovery System & Roof RackM116A3 Trailer build thread: viewtopic.php?f=72&t=77997