What Are Car Key Programmers? Car key programmers are devices that replicate a transponder into the memory of a vehicle. These can be used to replace keys that were stolen or lost. They can be used to reset oil service light and tire pressure warning lights and other lights. These https://autolocksmiths33772.uzblog.net/what-is-car-keys-programmed-and-how-to-use-it-43591917