Programming Car Keys at Home Reprogramming keys for cars is a complex procedure that requires tools that are only available to auto locksmiths. Some manufacturers have technology which prohibits anyone else than the dealership from reprogramming keys. Start by inserting a blank key into ignition, without turning the engine off. https://auto-locksmith86008.blogscribble.com/29308959/do-you-think-you-re-suited-for-car-key-programer-check-this-quiz