Anti lock breaks mess up when I modify the tire size.

[SuperB_24]

2007 Classic silverado, Duramax, automatic, When I program the preinstalled tunes into the truck, it acts great with no problems, but when i change the tire size from stock to 32.50" it screws up the anti-lock breaks everytime. It only does tis when i modify the tune, I have only changed the tire size, nothing else. The breaks are kinda already applied and when i depress the pedal, the anti-lock break motor starts up and vibrats the pedal. Any Idea's on why this is happening, I don't want to return the prgrammer,but i dont want this problem either. thank you

[mikel]

Make sure the Predator is on the latest revision as we have fixed this in the last revision.

Thanks

[nofinga911]

Make sure the Predator is on the latest revision as we have fixed this in the last revision.

Thanks

My 07 escalade is also having this problem and i have the latest revision on my u7194...what to do?

[mikel]

Sometimes you need to play with the numbers you input as the new ABS modules are very sensitive.
Try telling the Predator that the tire is a bit shorter than the numbers that are listed for it.

Thanks