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Types of Keys For Trucks In the mid- to late 90's, key manufacturers began putting transponder chips inside the head of their keys. The chip emits an electronic signal that is interpreted by the receiver inside your ignition. If the code is not compatible your car's code, it won't start. Beishir is able to produce these "chip keys" at a fraction of the cost of a dealer. Transponder Keys A transponder key, also referred to as a chip key or an immobilizer key, is a tiny electroni