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Why Get Your Car Key Programmed? Many people require their keys for their car programmed. If you have children who press the button too many times or you've lost your keys, then your remotes require reprogramming. Certain auto locksmiths and dealerships have special equipment to do this. They can also copy keys that are already in use, if that's possible. Transponder Keys A transponder key is a different term used to describe an electronic car key, often referred to a chip key or a smart key. Transponder keys contain a mic