Reprogramming with larger tires

[EastTXYukon]

Do I need to get a reprogram on my 96 yukon? I recently went up in tire size from a 265/75/16 that was stock size to a 295/75/16.

 

[bowtiefreak]

It never hurts but that is not a huge change. If possible yes do it, it just throws the speedo, ABS and the shifting off a little.

 

[SunlitComet]

that is a 5.6% difference in speedo alone i would have it reprogrammed to straighten the pcm functions out.

 

[WalterMitty]

I did mine. Speedo error annoys me.

 

[bowtiefreak]

Case closed, get a hand held or get in touch with a tuner. Second option is best.

 

[SunlitComet]

dealer can do to.

 

[WalterMitty]

The great thing about having your own programmer is that you can tweak a whole bunch of neat stuff.