What are the hazards of metal car key covers?

1 Answers
LaDiana
07/29/25 10:59pm
Metal car key covers can significantly interfere with the signal transmission of car remote keys, potentially causing delayed response from the vehicle after key operation. Below is an explanation of how car remote keys work and methods to unlock a car when the key is lost: How car remote keys work: Car keys contain a radio remote signal generator, which emits weak radio waves when pressed. These signals are received by the car's antenna, identified by the electronic control unit (ECU), and then executed by the system's actuator. Methods to unlock a car when the key is lost: If the primary key is lost, the spare key can be used; 4S stores typically offer after-sales rescue services—simply call and wait for the rescue team to arrive and help match a new key; alternatively, seek assistance from a qualified and licensed locksmith company to unlock the car.
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