Programming Car Keys at Home Reprogramming your car keys is a complicated procedure that requires special tools that are only available to auto locksmiths. Some manufacturers have technology which prevents anyone but the dealership from reprogramming keys. Start by inserting a blank key into ignition, without turning the engine off. https://g28carkeys10546.diowebhost.com/84522329/car-key-programmed-101-this-is-the-ultimate-guide-for-beginners