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Keyless Entry Systems For Your Truck In the 1980s, car burglaries using hot-wiring became more common. General Motors introduced "chip keys" or transponder keys to combat this. The new car keys have an electronic chip inside the head which transmits a unique code to your vehicle. If the code matches your car's engine, it will begin. Transponder Keys Transponder keys are equipped with a microchip which transmits an electronic signal to the car's onboard computer when the key is inserted
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