GM, in an effort to make their cars and trucks somewhat more eco friendly, added a function that puts your cars and truck in 4th gear when cruising along in 1st under specific conditions. This is obviously despised by many owners. I is despised so much, that you can buy a industrial product to disable it. That product costs between $20 as well as $40. Jalopnik has published a simple solution to disable this function for under $7 .  All you requirement is a replacement plug as well as a resistor. It’s truly quite simple.