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How to Program Keys For Cars Locksmiths or automotive specialists are typically the ones who re-program keys to cars. They can make use of a specific software to program the new key using your old one. This involves reprogramming a blank chip in your replacement key to ensure that it is compatible with the current settings of your vehicle. Some manufacturers make this easy, while others require a dealer or locksmith. Self-programming As technology for cars has improved over time, the ignition k