Re: SCT Unlock?
I only know about the 3015 sf3, they come with 5 unlocks that means 5 different vins. That could be two trucks going back and forth or five different ones. You have to return to stock to use on a new truck because it is vin locked to whatever truck you're tuning now. The tuner will have 4 unlocks left after initial use you can return to stock and tune the same truck over and over and still have 4 unlocks left. If you run out of unlocks SCT will sell you a unlock for $150.00 but I think you have to send them the unit.