What are VATS keys and how can I know if my car key is a VATS key or not?
VATS car keys – Before transponder keys there were V.A.T.S. keys, which stands for Vehicle Anti-Theft System. These keys have a visible resistor chip in the blade of the key. There are 15 different values to these chips. When the key is inserted into the ignition the switch reads the resistive value of the chip on the key and sends a signal to the vehicle. VATS key can only be found in GM models. A simple way to know if your car key is a VATS key is to take a look at the car key. A small black chip in the key will indicate that this is a VATS key.
