What are the different types of Factory Anti-Theft Systems?
– For GM vehicles the systems are the, (1) PASSKEY or (VATS) Security System. The key here has a visible BLACK circular pellet in its metal shaft of the Key. (2) PASSLOCK I, and PASSLOCK II. (3) PK3, (GM transponder). The key has a RF radio component inside the key handle. There is a visible PK3 on the key itself. For Ford, Chrysler, and most Import models, there is the TRANSPONDER type. The Ford uses the PATS and SECURILOCK System, which uses a Transponder Key. Chryslers (Sentry key) and most all Imports use a Transponder Key.
