VATS and PASSKey I/II, one of the pioneer anti-theft systems, is slowly coming to its end. For the 2005 model year, only one General Motors vehicle, the Buick Century, will be equipped with the resistor pellet in the key-based anti-theft system. That is for the non-fleet sales of General Motors...
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|Buick Park Avenue|
|Chevrolet Monte Carlo||S||S|
|Pontiac Firebird GTA|
|Pontiac Grand Prix|
The number of vehicles equipped with the VATS system peaked in the late 1990s, as transponder systems and other anti-theft systems were developed. The last VATS-equipped vehicle sold was the Chevrolet...
The PassLock system was designed to prevent vehicle theft by disabling fuel to the engine if attempts are made to start the vehicle without the correct bitted key.
All four use the GM Z-Keyway system and the “Circle Plus” transponder system. All can be programmed with the standard GM on-board programming procedure, which takes 30 minutes.