GM 5-byte seed-key generator tool is designed to unlock GM controllers at security access level for programming (27 01)  to access critical diagnostic procedures and functions. Unlock challenges are sort of a question and answer game between the ECU and diagnostic equipment. To give the correct secret answer to an ECU question, you need a GM Seed-Key calculator that can calculate the correct answer. With the help of this software you can very easily use the full capabilities of DPS and SPS for GM.

      This is a software activation. All current: 

 Hyundai and KIA VIN to PIN calculator customers

 Simplediag any software activation customers

 SKGT customers

       can enable this function because they already have a security dongle. 

New customers who wish to purchase it and do not have a security dongle must purchase one along with the activation.