A ZPC is not going to keep your VSC from kicking on when driving out in loose dirt/gravel or wheeling.

A ZPC will NOT completely eliminate the possibility of VSC kicking on when taking a sharp turn quickly in a lifted truck.

The VSC/ABS system in these trucks is surprisingly sensitive, and it will kick in if it reads significant enough variance in rotational velocity from one wheel to another. Larger tires with more sidewall flex, lifted suspension that moves and shifts more under certain loads and during directional changes (i.e. sharp turns over uneven pavement, at high enough speed) WILL result in a short term variance of rotational velocity between your wheels. More-so than what existed in the stock/OEM vehicle configuration. ABS system interprets that variance as wheel slip, and applies VSC correction to fix it.

2 Ways around it.

-Disable VSC.

-Pay attention to the conditions when VSC kicks in, and modify your driving style to avoid them. Maybe don't take certain turns as sharply or quickly.

To everyone who visits this thread -pay attention. The above quote is the most accurate and logical explanation I've heard. I've tried all of the procedures from paying a dealership to attempting on my own, and my 4Runner STILL slips. If I were a moderator I'd consider this thread closed

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Hi did you find the solution so far? I'm in that problem today with a 2012 T4R LTD with 2" lift. Thanks

Hi EdmundGTP I was told that droping the sway bar can reduce the possibility of VSC kicking in. I've a 2012 T4R LTD. What do you think about that?

Dropping as in removing? Hard to tell without trying it out, I'd say. If I had to guess, removing the sway bar would likely allow even more of a rotational discrepancy between wheels, possibly making it worse. But then again, sometimes real life doesn't match our expectations. Give it a shot and let us know!