Programming Car Keys at Home Reprogramming car keys is a difficult procedure that requires tools that are available only to auto locksmiths. Certain manufacturers have technology that prevents anyone but the dealership from changing keys. Begin by inserting one of your blank keys into the ignition, without beginning the engine. https://autolocksmith57859.weblogco.com/29480262/5-car-key-programmed-lessons-from-the-professionals