Programming Car Keys at Home Car key reprogramming is a process which requires specialized equipment only an auto locksmith has access to. Some manufacturers have technology that blocks anyone else than the dealership from reprogramming keys. Start by inserting a blank key into the ignition without turning the engine on. https://g28carkeysolutions99556.blog2freedom.com/29420880/the-reasons-car-key-programmed-isn-t-as-easy-as-you-think