What Are Key Programmers? Most modern cars have key / ignition systems that require reprogramming at some point. Key programmers are useful in this situation. There are three scenarios in which shops might require key programming capabilities. They could run into a no-start diagnostic, the customer wants an extra key https://g28carkeysolutions93683.madmouseblog.com/9877646/8-tips-to-improve-your-car-key-reprogramming-game