Quote Originally Posted by 57buick View Post
I LOVE the alphaOBD software. You absolutely can add the mirrors and any other option these trucks ever had. There are often details for adding certain features that are easily overlooked, some of the other forums on here and on other pages you can find all kinds of detaied writeups on adding various functions.

Ive seen guys add the air conditioned seats, heated seats, puddle lights, heated wheels just about everything Ive seen added with this software. No longer need a witech device. AlphaOBD can actually make changes that the dealer techs are not even authorized in Witech to do.

I personally disabled the TPMS system to get rid of the annoying errors for the tire pressures, changed my axle gear ratio, change my tire size so my speedo reads correctly etc... You just need to research and get the info and step by step instructions
You know with alfaobd you can reprogram your TPMS?

I had to change mine.


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