What are the reasons why a car cannot detect the key?

[MadelineRose]

The reasons why a car cannot detect the key include key malfunction, magnetic field interference, and door jammer effects. Key malfunction: If you are using a remote key to lock or unlock the door, it is likely that the remote lock is malfunctioning or the antenna of the car's remote transmitter has aged, causing the remote key to be undetectable. In this case, you can use the spare mechanical key to lock or unlock the door. Magnetic field interference: If there is strong magnetic field interference around the car, the smart key, which uses low-intensity radio waves, may not function properly. Door jammer: If the car frequently fails to detect the key in a particular location, you should be cautious about the presence of a door jammer.