https://blogfreely.net/radiobirth34/10
Types of Keys For Trucks Around the mid-to-late 90's the industry began putting a chip transponder in the plastic head on their keys. This chip emits a signal that is received by the receiver in your ignition; if the code doesn't match, the car won't start. These are often referred to as "chip keys." Beishir can make these for you at just a fraction of the cost of dealers. Transponder Keys A transponder, also known as an immobilizer or chip key, is a tiny microchip that is embedded within the head of an automobile key. It contains an unique code.