Programming Car Keys at Home Reprogramming car keys is a complicated 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 an empty key into the ignition without turning the engine on. https://auto-locksmiths77494.bloginder.com/29851859/car-key-programer-explained-in-less-than-140-characters