MM3 Tuner: Return To Stock Programming

NOTICE: These articles are provided for customers but are available to the public as a courtesy. MM3 Tuning is an authorized seller of the MM3 Tuning Platform and is a separate company from MM3 is the tech support and warranty service provider for the MM3 Tuning platform. Please contact them directly with any support or warranty issues. 


This article will show you how to easily return your truck to the stock programming:

With the key on and engine OFF:

Tap on any gauge on your mm3 display to get to the main menu:

Press “Main Menu”

Press the “ECM” Button….

Press “ECM” Again…

Finally, press “Return Vehicle To Stock Software” and follow the prompts through the flashing process. Once you have completed these steps you are finished and your ECM will now show the same software as it did when you drove it off the dealer’s lot.

See my tuning in action…

High Altitude 12 Valve Tune Cold Start

An early version of my towing tune…