Key Fob Programming Near Me Modern cars have an RFID key fob. A car's radio receiver tuned to the fob's signal decrypts it and then responds accordingly, whether it's unlocking, locking, or even starting the engine. Some car owners have their fobs reprogrammed at an auto dealer. But a locksmith https://www.g28carkeys.co.uk/harpenden-auto-locksmiths-near-me/