Benefits of Programmable Car Keys Preprogramming your car keys is a great option to prevent being locked out in the future. It can be expensive depending on the car you drive. There are tools to assist shops and DIY customers create replacement keys and restore the immobilizer's data, Sanabria says. https://g28-car-key-solutions90075.blogstival.com/51872126/what-are-the-myths-and-facts-behind-car-key-programing