What Causes the Car Key to Fail to Lock the Doors?

[MicahAnn]

Reasons why a car key fails to lock the doors: key malfunction, magnetic field interference, and door jammers. Below are detailed explanations and solutions: Key malfunction: If using a remote key to lock the doors, the remote lock may malfunction or the antenna of the car's remote transmitter may have aged, causing the remote key to fail. In such cases, the spare mechanical key can be used for locking. Magnetic field interference: Strong magnetic field signals around the car can interfere with the smart key, which operates using low-intensity radio waves. If the key fails to work due to magnetic interference, drive the car a short distance and then use the key to lock the doors. Door jammers: If the car frequently fails to lock remotely in a certain location, be wary of door jammers. Criminals may use radio signal jammers that emit electromagnetic waves at the same frequency as the car's locking signal, thereby blocking the electronic code of the central locking system and temporarily disabling it. In such cases, visit a 4S shop for inspection and removal.