Tune Security

Some tuners prefer to lock their tunes in order to make it more difficult for customers and other tuners to view and modify them. VCM Editor supports two methods of doing this:

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Tuner Lock: This method takes advantage of a security key built into the operating system of some GM controllers. Changing the security key prevents anyone who does not have the new key from reading or flashing the vehicle. VCM Editor will also require this key to view or modify the tune file. See Tuner Lock for more information.

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Master/Slave Security: This method locks the tune file so that your Tuner ID is needed to open it, view it, or edit it. Additionally, a file locked this way can be flashed to the vehicle only by interface devices whose serial numbers you have specified. See Remote Tuning.