How to Tell if a Triple Dog is Locked To a Vehicle
Checking to see if tune is installed
Plug the device into the vehicle, once it powers up if it goes to the On the fly(OTF) screen, then the tuner is locked to a vehicle.
To see what vehicle it is locked to go to the main menu
If there is a settings option in the menu, select that by pressing Y followed by the right arrow (top right button). If there is not a settings option in the menu just press the right arrow.
The next screen will show a VIN, and or a vehicle part number to the vehicle that the tuner is locked to.