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Truck Key Programming Many customers will visit your shop with keys/fobs that are in a mess. Many customers will pay to repair the key or fob. The majority of key fobs need to be programmed within a certain time period by turning the ignition "On" and then "Off". The vehicle will then enter programming mode. This is usually accompanied by the door lock's cycling or audible chime. Keys One of the most valuable skills that a mechanic can possess is being able to generate and program keys and fobs. 's a great way to increas