To enable the Overdrive software, simply go through another tuning programming process. When you’re setting the options for the tune, there will be a prompt asking you if you want to enter a code to activate the transmission software. Enter the unlock code that you purchased (https://www.hsunlockcodes.com/overdrive-software) and the menu will be unlocked.
Note: The Cummins Overdrive Software is available ONLY on 2006-2012 Dodge Cummins 2500/3500 with the 48RE/68RFE automatic transmission. Aisin transmissions and 4500/5500 models are NOT compatible.