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Keyless Entry Systems For Your Truck In the 1980s, car thefts using hot-wiring were becoming more common. General Motors introduced "chip keys" or transponder keys in order to stop this. The new car keys have an electronic chip in the head that transmits a unique number to your vehicle. If the code matches, your engine will start. Transponder Keys A transponder key features the microchip that transmits a signal when the key is inserted into the ignition. The car's computer verifies the
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