Programming Car Keys at Home Reprogramming car keys is a complicated procedure that requires tools that are only available to auto locksmiths. Certain manufacturers have a technology that prevents anyone but the dealership from programming keys. Start by inserting an empty key into the ignition, without turning the engine on. https://g28-car-keys01638.blogginaway.com/29985980/5-car-key-programmed-lessons-learned-from-professionals