Using a Key Programmer Modern key fobs go beyond just keys; they communicate with vehicles to start it and open the rear hatch, and so on. To do so, they need to be programmed to work in conjunction. All car dealerships, auto manufacturers and auto locksmiths can provide key programming. https://auto-locksmiths22538.digiblogbox.com/54750137/how-do-you-explain-car-key-programmer-to-a-5-year-old