Benefits of Programmable Car Keys Preprogramming your car keys is an excellent option to prevent being locked out in the future. It could be costly depending on your car. There are tools to help shops and even DIY customers program replacement keys and restore data from the immobilizer, Sanabria says. https://g28carkeys42733.p2blogs.com/28673916/it-s-the-next-big-thing-in-car-key-programer