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How to Go About Programming a Car Key Car key programming is a crucial step in protecting your car against thieves. Some manufacturers allow you the option of programming your keys on your own, however it is recommended to leave it to professional locksmiths. First, you need to buy a blank key with the appropriate chip for your vehicle. They are available at most hardware and auto parts stores. Keyless entry system It is a great way of keeping your car safe from theft. The system works by sending an electronic signal that