Programming Car Keys at Home Reprogramming car keys is a complicated procedure that requires tools that are available only to auto locksmiths. Certain manufacturers have a technology that prevents anyone but the dealership from changing keys. Begin by inserting a blank key into the ignition, without turning the engine off. https://g2888874.develop-blog.com/35712555/car-key-programmed-101-the-complete-guide-for-beginners