The RFID car key chip is designed to provide extra security in your vehicle, ensuring that only authorized users can start the engine. An RFID car key chip is a small but powerful device that is embedded in a car key for identification purposes. When the car key is turned in the ignition switch, the engine control unit (ECU) in the car sends an encrypted set of electronically coded signals to the chip in the car key. This advanced technology ensures that only the correct, authorized key can start the vehicle, giving car owners peace of mind.